Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

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34730 Publications

Numerical Simulation of the Emergency Condenser of the SWR1000

Krepper, E.; Schaffrath, A.; Aszódi, A.

The SWR1000 is a new innovative boiling water reactor concept, which is developed by Siemens AG. This concept is characterized in particular by passive safety systems (e.g. four emergency condensers, four building condensers, eight passive pressure pulse transmitters, six gravity-driven core flooding lines). In the framework of BWR Physics and Thermohydraulic Complementary Action (BWR-CA) to the EU BWR R&D Cluster emergency condenser tests were performed by Forschungszentrum Jülich at the NOKO test facility. In this paper post test calculations with ATHLET are presented, which aim at the determination of the removable power of the emergency condenser and its operation mode. The 1D thermal-hydraulic code ATHLET was extended by the module KONWAR for the calculation of the heat transfer coefficient during condensation in horizontal tubes. In addition, results of CFD-calculations using the code CFX-4 are presented, which investigate the natural convection during the heat up process at the secondary side of the NOKO test facility.

Keywords: BWR; emergency condenser; condensation inside horizontal tubes; natural convection; CFD

  • Kerntechnik 64 (1999) 5-6, p. 243-252

Permalink: https://www.hzdr.de/publications/Publ-2556
Publ.-Id: 2556


ROBL (German Beamline) on BM20: Structural and radiochemical investigations

Matz, W.; Schell, N.; Funke, H.; Bernhard, G.

  • ESRF- Newsletter 30 (1998) 45

Permalink: https://www.hzdr.de/publications/Publ-2554
Publ.-Id: 2554


Rossendorfer Beamline an der ESRF

Matz, W.

  • Phys. Bl. 54 (1998) Nr. 9, 785

Permalink: https://www.hzdr.de/publications/Publ-2553
Publ.-Id: 2553


Investigation of liquid metal two phase flow characteristics by means of local resistivity probes and X-ray screening technique

Eckert, S.; Gerbeth, G.; Guttek, B.; Stechemesser, H.; Lielausis, O.

In many technologies such as the refinement of metallic melts the injection of gas bubbles is used to drive some liquid motion, enhance transport processes or to control the rate of chemical reactions. The resulting flow structure strongly depends on two phase flow parameters such as bubble size, bubble distribution or the local void fraction. Magnetic fields can be used to control the characteristics of a liquid metal bubbly flow.
We present experimental investigations of the bubble formation in heavy liquid metals as well as the influence of external magnetic fields on the turbulent dispersion of gas bubbles and the slip ratio in liquid metal bubbly flows, respectively.

a) Bubble formation
If gas bubbles are injected into a liquid metal characterised by a large surface tension one should be care to get a good wetting between the fluid and the surface of the gas injector. Otherwise, the gas would try to spread out along this interface to form gas layers. A control of the bubble size and formation rate becomes difficult. The comparison between experiment and theoretical models describing bubble formation processes requires an ideal wetted gas injector.
The bubble formation in mercury and the eutectic alloy InGaSn has been studied by means of several methods of gas injection, for instance through single orifices or injectors made from sintered metals with a mean porosity of a few microns. X-ray measurements have been used to directly observe the resulting gas bubbles rising in the liquid metal. In the case of an single orifce the influence of electromagnetic forces on the bubble frequency has been demonstrated.

b) Turbulent bubble dispersion, slip ratio
The transport properties of small argon bubbles have been studied in turbulent upwards channel flows of sodium and mercury. The bubbles were injected by a single orifice located in the centre of the channel cross section. After a distinct distance the local void fraction and the bubble velocity has been measured by means of electrical resistivity probes. The flow has been exposed to external magnetic fields directed transverse or longitudinal to the mean flow direction.
We will present and discuss measuring results showing the effect of the magnetic field strength and direction on the horizontal gas distribution and the ratio between gas and liquid velocity.

Keywords: two-phase flow; bubbly regime; liquid metals; void fraction measurements; electric resistivity probe; X-ray imaging

  • Lecture (Conference)
    International Workshop on Measuring Techniques for Liquid Metal Flows (MTLM), Dresden, October 11-13, 1999

Permalink: https://www.hzdr.de/publications/Publ-2552
Publ.-Id: 2552


Local velocity measurements in high temperature liquid metals by means of mechano-optical probes

Eckert, S.; Witke, W.; Pisseloup, L.; Gerbeth, G.

Model experiments are an important tool to understand the details of the flow structure and the transport properties of
flows occurring in real-scale metallurgical facilities as well as to validate the multitude of numerical codes for flow
simulation. Generally, water experiments are often performed to characterise the flow. Nevertheless, due to the large
differences of material properties like density, heat conductivity, surface tension or electrical conductivity the use of liquid
metals has clearly to be preferred if heat transfer phenomena, two-phase flows or the influence of electromagnetic fields
on the flow should be investigated. The application of suitable alloys with low melting points, for instance PbBi (Tm = 125
°C) or InGaSn (Tm = 5...10 °C), makes such kind of experiments very flexible and offers the ability to measure the
essential flow quantities like velocity, pressure or void fraction.

In this lecture we want to discuss a novel sensor which has been developed by the Rossendorf group to measure the local
velocities in opaque liquid flows. The measuring principle is based on the separation of a direct mechanical interaction
between flow and sensor tip and the optical acquisition and processing of the signal. In principle, this fact allows the
extension of the range of applicability to higher temperatures. Furthermore, the insensitivity of the system to electrical
noise and external magnetic fields can be considered as an important advantage. Until now, the sensor has been tested in
metallic melts up to temperatures of about 350 °C . In principle, an extension of the range of application up to
temperatures of about 1100 °C should be possible by the utilisation of quartz glass as material for the sensitive sensor tips.
The first sensors have been manufactured and tested with low temperature melts.

We present measurements of the local velocity obtained in an eutectic InGaSn melt driven by a rotating magnetic field.
The interest is focussed on geometry and parameters relevant for crystal growth technologies and mixing processes in
metallurgical applications, respectively. Measured profiles of the azimuthal velocity have been obtained at different
frequencies and field amplitudes.

Keywords: flow measurement technique; fluid velocity; mechano-optical principle; local sensor; liquid metals; rotating magnetic field

  • Lecture (Conference)
    International Workshop on Measuring Techniques for Liquid Metal Flows (MTLM) , Dresden, October 11-13, 1999

Permalink: https://www.hzdr.de/publications/Publ-2551
Publ.-Id: 2551


Reaktorsicherheitsforschung im Institut für Sicherheitsforschung des Forschungszentrums Rossendorf

Weiß, F.-P.; Rohde, U.; Prasser, H.-M.; Altstadt, E.; Böhmert, J.; Böhmer, B.; Carl, H.

Das Institut für Sicherheitsforschung ist eines von fünf wissenschaftlichen Instituten des Forschungszentrums Rossendorf e. V. (FZR). Die Rossendorfer Sicherheitsforschung baut auf langjährige Erfahrungen zur Analyse von Druckwasserreaktoren des russischen WWER-Types auf. WWER-Reaktoren nehmen bis heute einen wichtigen Platz im Spektrum des Institutes ein. So unterstützt das Institut im Rahmen eines Programmes des Bundesministeriums für Umwelt, Naturschutz, und Reaktorsicherheit die ukrainische Atomaufsichtsbehörde beim Aufbau einer modernen KKW-Überwachung. Inzwischen hat das Institut ebenso Kompetenz zur Sicherheitsforschung für westliche Leichtwasserreaktoren aufgebaut und kooperiert mit deutschen, europäischen und amerikanischen Forschungseinrichtungen und der Industrie.
Die Schwerpunkte der Sicherheitsforschung in Rossendorf liegen auf der Modellierung thermohydraulischer Phänomene bei unterstellten Störfallabläufen, der Reaktorphysik und dem Strahlungstransport und dem Verhalten von Komponenten und Materialien.
Der erste Teil des Forschungsberichtes beschäftigt sich ausschließlich mit den thermohydraulischen Arbeiten des Institutes wie den Vermischungsvorgängen im Primärkreis bei Borverdünnungs- und Kaltwassertransienten sowie der Modellentwicklung für transiente Zweiphasenströmungen. Für die thermohydraulischen Arbeiten hat das Institut ein 1:5 Modell eines deutschen DWR aufgebaut, die Experimente werden mit CFD-Codes (Computational Fluid Dynamics) nachgerechnet.

  • atw 44. Jg. (1999) Heft 6 - Juni, S. 348

Permalink: https://www.hzdr.de/publications/Publ-2550
Publ.-Id: 2550


Measuring techniques for model experiments in liquid metal alloys

Eckert, S.; Witke, W.; Gerbeth, G.

Model experiments are an important tool to understand the details of the flow structure and the transport properties of flows occurring in real-scale metallurgical facilities as well as to validate the multitude of numerical codes for flow simulation. The application of suitable alloys with low melting points, for instance PbBi (T = 125 °C) or InGaSn (T = 5...10 °C), guarantees realistic flow parameters and also offers the ability to measure essential flow quantities like velocity, pressure or void fraction. Two approaches will be discussed to measure the local velocities in opaque liquid flows such as liquid metals: a mechano-optical sensor and the ultrasonic Doppler method, respectively. Today, with respect to problems like high temperatures or material compatibility both techniques reveal severe limitations considering velocity measurements in liquid steel or aluminium, however, their reliability at moderate temperatures has been demonstrated. Here, we present velocity measurements obtained by means of both methods for the case of a cylinder filled with an eutectic InGaSn melt driven by a rotating magnetic field.

Keywords: flow measurement technique; fluid velocity; mechano-optical principle; ultrasonic Doppler method; liquid metals; rotating magnetic field

  • Lecture (Conference)
    EPM2000, The 3rd International Symposium on Electromagnetic Processing of materials, April 3-6, Nagoya, Japan, Published by: The Iron and Steel Institute of Japan, pp. 43-48
  • Contribution to proceedings
    EPM2000, The 3rd International Symposium on Electromagnetic Processing of materials, April 3-6, Nagoya, Japan, Published by: The Iron and Steel Institute of Japan, pp. 43-48

Permalink: https://www.hzdr.de/publications/Publ-2549
Publ.-Id: 2549


Comparative Study of Methods to Estimate Elastic-Plastic Dynamic Fracture Initiation Toughness

Richter, H.

There has not yet been generally accepted single specimen technique in order to obtain dynamic fracture mechanical parameters. A potential candidate could be the measurement of the acoustic emission (AE). Previous investigations showed that characteristic AE signals appears in the vicinity of crack initiation for the first time. With a specially developed measuring arrangement the method could be compared with simultaneously measuring additional physical parameters at specimens of strongly different levels of toughness and strength. Furthermore the results could be verified by the results of multiple specimens technique. With this technique the dynamic crack resistance curve was determined and the physical crack initiation toughness was deduced by measurement of the stretch zone width. To realize the idea the inverted impact pendulum developed and installed by VTT Espoo/Finland was modified with an AE transducer and a magnetic emission (ME) probe. The inverted impact pendulum design reduces the inertia and oscillation effects in the recorded load curve and allows to measure the crack opening (COD) by a laser scattering light method. In this way, at the same specimen crack opening displacement (COD), AE, and ME could be measured.
Neither of the three single specimen methods can directly detect crack initiation. Except the lower shelf region, were only a tiny amount of ductile crack growth occurs before cleavage, the stable crack initiation could be proven by AE and COD. Good agreement between initiation parameters based on SZW and AE was found for all toughness levels. In some cases a strong scattering of toughness parameters was, however, observed and the ranking did not correspond. COD indicates crack initiation after an amount of macroscopic stable crack growth, which is small but cannot be ignored. The correlation to the SZW is not independent of the toughness; for steels with high toughness the correlation is unsatisfied. Eventually, ME does not reflect stable crack initiation and growth.
Obviously, the physical connection between crack initiation and AE cannot be revealed. The AE method has been proved as very sensible for microscopically active processes, which coincide spatially and chronologically with ductile crack initiation. Thus, it is appropriate to estimate the dynamic fracture mechanical parameter "crack initiation toughness" better than other recently applied methods.

  • Lecture (Conference)
    Beitrag zu European Conference Junior Euromat‘98, 7.-11.9.1998, Lausanne, Switzerland, p. 333
  • Contribution to proceedings
    Beitrag zu European Conference Junior Euromat‘98, 7.-11.9.1998, Lausanne, Switzerland, p. 333

Permalink: https://www.hzdr.de/publications/Publ-2548
Publ.-Id: 2548


TRIDYN-Computersimulationen zur Schicht-Deposition von BN und zur Hochdosisimplantation in Si

Schwieger, T.

  • Other report
    Friedrich-Schiller-Universität Jena, April 1997

Permalink: https://www.hzdr.de/publications/Publ-2547
Publ.-Id: 2547


Synthese schwermetallionensensitiver Membranen für ISFETs mittels Ionenimplantation

Möller, D.

  • Other report
    TU Dresden, July 1997

Permalink: https://www.hzdr.de/publications/Publ-2546
Publ.-Id: 2546


Crystal-GRID: Eine neue nukleare Sonde zur Untersuchung atomarer Bewegung im Festkörper

Jentschel, M.

  • Other report
    TU Dresden, April 1997

Permalink: https://www.hzdr.de/publications/Publ-2545
Publ.-Id: 2545


Defect engineering and prevention of imurity gettering in ion implanted silicon

Kögler, R.; Peeva, A.; Skorupa, W.; Kaschny, J.; Hutter, H.

Additional self-interstitials were introduced into the vacancy-rich depth range around half of the projected ion range of high energy ion implanted silicon in order to balance radiation induced excess vacancies. The trapping of Cu atoms was found to be not effected by this procedure. Additional interstitial loops were formed during annealing if the concentration of self-interstitials exceeded a certain threshold. These dislocation loops did not act as gettering centres for Cu atoms. The results obtained are not in agreement with the assumption that excess vacancies are the gettering centres for metal impurities like Cu. Instead, it may be assumed that small clusters of self-interstitials act as gettering centres.

Keywords: silicon; ion implantation; point defects; gettering; impurities

  • Solid State Phenom. 82-84, 399 (2001)
  • Lecture (Conference)
    Int. Autum Meeting Gettering an Defect Engineering in Semiconductor Technology, GADEST 2001, St. Tecla, Sept. 30- Oct. 3., 2001

Permalink: https://www.hzdr.de/publications/Publ-2544
Publ.-Id: 2544


Transport und Strukturmodifikation bei der Stickstoffimplantation in amorphen Kohlenstoff

Grigull, S.

  • Other report
    TU Dresden, July 1997

Permalink: https://www.hzdr.de/publications/Publ-2543
Publ.-Id: 2543


Morphologie, chemische Heterogenität und Lumineszenz von Zirkonen und ihre Bedeutung für petrogenetische Typologie und Genchronologie

Wolf, D.; Oberhänsli, R.; Grambole, D.; Gruner, T.

  • Other report
    DFG-Abschlußbericht zur Sachbeihilfe Wo 489/2 - 2

Permalink: https://www.hzdr.de/publications/Publ-2542
Publ.-Id: 2542


Entwicklung eines Permeable Base Transistors mit Kobaltdisilizid-Gate auf der Basis maskenloser Implantation mit feinfokussiertem Ionenstrahl

Teichert, J.; Hausmann, S.

  • Other report
    DFG-Te 250/1-1, Zwischenbericht, 12/97

Permalink: https://www.hzdr.de/publications/Publ-2541
Publ.-Id: 2541


Hochstromionenquelle für Dünnschichttechnologien

Siemroth, P.; Richter, E.; Schülke, T.; Witke, T.; Brückner, J.; Brutscher, J.

  • Other report
    SMWK 4-7541.83-IWS/504

Permalink: https://www.hzdr.de/publications/Publ-2540
Publ.-Id: 2540


Schlußbericht: Anwendungsgerechte Systemintegration und Zuverlässigkeit für die intelligente mikro-mechanische Sensorik (AN-SYS), Teilvorhaben: Silizium-Glas- und Silizium-Silizium-Bonden

Schmidt, B.; Lange, K.; Harz, M.; Nitsche, P.

  • Other report
    BMBF-Verbundprojekt, Förderkennzeichen 13 MV 0266, Mai 1997

Permalink: https://www.hzdr.de/publications/Publ-2539
Publ.-Id: 2539


Fluorine profiles in antarctic meteorites by nuclear reaction analysis

Noll, K.; Döbeli, M.; Tobler, L.; Grambole, D.; Krähenbühl, U.

  • Contribution to external collection
    Annual Report 1996, Labor f. Radio- u. Umweltchemie der Univ. Bern u. des PSI

Permalink: https://www.hzdr.de/publications/Publ-2538
Publ.-Id: 2538


Dotierte und undotierte Diamantfilme

Fontaine, F.; von Borany, J.; Heera, V.

  • Other report
    SMWK: 4-7531.50-03-IFW/602, Zwischenberichte 25.6.1997, 11.12.1997

Permalink: https://www.hzdr.de/publications/Publ-2537
Publ.-Id: 2537


Abschlußbericht zum Verbundprojekt "Strukturelle Ursachen und Mechanismen der bestrahlungsinduzierten Versprödung in Reaktordruckbehälterstählen"

Böhmert, J.; Brauer, G.

  • Other report
    Verbundprojekt Forschungsförderung SMWK 1994, 4-7541.83 - FZR/403 Berichtsdatum: 15.01.1997

Permalink: https://www.hzdr.de/publications/Publ-2536
Publ.-Id: 2536


Impurity gettering effects in separation-by-implanted-oxygen (SIMOX) structures: what getters what, where and how

Yankov, R. A.

  • Lecture (others)
    Bell Labs, Lucent Technologies, Murray Hill, NJ, USA, Dec. 8, 1997

Permalink: https://www.hzdr.de/publications/Publ-2535
Publ.-Id: 2535


A neural network approach for acoustic leak monitoring in the VVER440 pressure vessel head

Hessel, G.; Schmitt, W.; van der Vorst, K.; Weiß, F.-P.

A neural network approach has been developed for localizing leakages and estimating the leak rate in the VVER-440 pressure vessel head. Results are presented from experiments with simulated leaks. Three-layer perceptron networks were found to be best suited for leak localization and for the estimation of leak rates. However, the estimation of leak rates required an additional neural network because a different normalization procedure was necessary for extracting features from RMS values of the acoustic emission sensors. Perceptron networks with continuously valued outputs corresponding to the coordinates of the leak positions were useful for indentifying even leak positions which had not been offered during training.

Keywords: Leak; monitoring; neural networks; pressurized water reactors; VVER reactors

  • Progress in Nuclear Energy, Vol. 34, No. 3, pp. 173 - 183, 1999

Permalink: https://www.hzdr.de/publications/Publ-2534
Publ.-Id: 2534


Interaction of high-energy ion beams with silicon: buried layers, gettering and defect engineering

Yankov, R. A.

  • Lecture (others)
    VARIAN Company, Gloucester, MA, USA, Dec. 4, 1997

Permalink: https://www.hzdr.de/publications/Publ-2533
Publ.-Id: 2533


Proximity gettering of transition-metal impurities in separation-by-implanted-oxygen (SIMOX) structures using buried carbon- and helium-implanted layers

Yankov, R. A.

  • Lecture (others)
    Naval Res. Lab, Electronics Division, Washington D.C., USA, Nov. 26, 1997

Permalink: https://www.hzdr.de/publications/Publ-2532
Publ.-Id: 2532


Effekte bei der Implantationsdotierung von Bor und Aluminium in 6H-SiC

Wirth, H.

  • Lecture (others)
    Daimler-Benz-AG, FZ Frankfurt/M., Oct. 29, 1997

Permalink: https://www.hzdr.de/publications/Publ-2531
Publ.-Id: 2531


Verfahren zur Minimierung des Einflusses von Resonanzfluktuationen auf das Meßsignal bei Ultraschall-Durchschallungsuntersuchungen

Prasser, H.-M.; Hensel, F.; Schütz, P.

Das Patent beschreibt ein Verfahren zur Minimierung des Einflusses von Resonanzfluktuationen des Meßmediums bei Ultraschall-Durchschallungsuntersuchungen an in Rohrleitungen geführten Zwei- und Mehrphasenströmungen durch eine schnelle Variation der Arbeitsfrequenz des Senders der Meßeinrichtung.

Keywords: ultrasonic transmission measurement; wobbling; Wobbeln; Ultraschall-Transmissionsmessung

  • Patent
    DE 4333645 A1
  • Patent
    EP 0721572 B1

Downloads:

Permalink: https://www.hzdr.de/publications/Publ-2530
Publ.-Id: 2530


Using ANSYS/FLOTRAN® and CFX-4® for the solution of a mixed convection flow benchmark

Krepper, E.; Willschütz, H.-G.; Altstadt, E.; Weiß, F.-P.

For the design, optimisation and safety analysis of nuclear plants, the use of 1D system codes is state of the art. However, for the modelling of passive equipment the range of validity of the 1D-codes is exceeded, because in these structures 3D-flow phenomena are often dominating. The fast progress of the computer technique and of Computational-Fluid-Dynamics (CFD-) codes gives the opportunity, to apply CFD-codes to the assessment of the efficiency of those components. Most of these codes are based either on the finite-volume or the finite-element method.
Integrated simulation of thermo-hydraulic phenomena and the resulting thermo-mechanical loadings for the surrounding structures (e. g. the reactor pressure vessel) can be achieved using a finite-element-code like ANSYS/Multiphysics®. The finite volume code CFX® has been proven to be an appropriate tool for modelling of 3D single phase fluid phenomena.
The governing mechanism in passive components for decay heat removal is natural convection and heat transfer with internal heating. To assess the capability of both codes describing a mixed convection flow, post test calculations of an IAHR (International Association for Hydraulic Research) benchmark exercise were performed (Kamide et. al, 1991). The working fluid was water in the temperature range of 15 to 50°C at atmospheric pressures.
This paper presents a discussion of the problems and capabilities of each code to calculate complex flow regimes and temperature fields.

Keywords: buoyancy driven fluid flow; CFD post-test analysis; ANSYS/FLOTRAN; CFX-4; heat transfer; natural convection

  • Lecture (Conference)
    17. CAD-FEM Users´ Meeting, 6.-8. Oktober 1999, Sonthofen, Germany, Proceedings Paper No. I 2.4
  • Contribution to proceedings
    17. CAD-FEM Users´ Meeting, 6.-8. Oktober 1999, Sonthofen, Germany, Proceedings Paper No. I 2.4

Permalink: https://www.hzdr.de/publications/Publ-2529
Publ.-Id: 2529


Subthreshold Production of Kaons and Antikaons in Nucleus-Nucleus Collisions at Equivalent Beam Energies

Barth, R.; Senger, P.; Ahner, W.; Beckerle, P.; Bormann, C.; Brill, D.; Cieslak, M.; Debowski, M.; Grosse, E.; Koczon, P.; Kohlmeyer, B.; Miskowiec, D.; Müntz, C.; Oeschler, H.; Pühlhofer, F.; Schwab, E.; Schicker, R.; Shin, Y.; Speer, J.; Ströbele, H.; Sturm, C.; Völkel, K.; Wagner, A.; Walus, W.

  • Physical Review Letters, Volume 78, Number 21, 26 May 1997, 4007-4010

Permalink: https://www.hzdr.de/publications/Publ-2528
Publ.-Id: 2528


Enhanced Out-of-Plane Emission of K+ Mesons Observed in Au + Au Collisions at 1 A GeV

Shin, Y.; Ahner, W.; Barth, R.; Beckerle, P.; Brill, D.; Cieslak, M.; Debowski, M.; Grosse, E.; Koczon, P.; Kohlmeyer, B.; Mang, M.; Miskowiec, D.; Müntz, C.; Oeschler, H.; Pühlhofer, F.; Schwab, E.; Schicker, R.; Senger, P.; Speer, J.; Ströbele, H.; Sturm, C.; Völkel, K.; Wagner, A.; Walus, W.

  • Physical Review Letters, Volume 81, Number 8, 24 August 1998, 1576-1579

Permalink: https://www.hzdr.de/publications/Publ-2527
Publ.-Id: 2527


Ionenimplantation in 6H-SiC; Elektrische Untersuchungen und Sublimation

Wirth, H.

  • Lecture (others)
    Daimler-Benz-AG, FZ Frankfurt/M., Jan. 8, 1997

Permalink: https://www.hzdr.de/publications/Publ-2526
Publ.-Id: 2526


Bestimmung von Ni-Tiefenprofilen in Al und Aufklärung der Phasenbildung bei Ionenimplantation in Al

Wieser, E.

  • Lecture (others)
    Seminar des Sonderforschungsbereiches "Strukturbildung und Eigenschaften in Grenzschichten", Dresden, Nov. 20, 1997

Permalink: https://www.hzdr.de/publications/Publ-2525
Publ.-Id: 2525


Flüssigmetall-Ionenquellen und ihre Anwendung in Ionenfeinstrahlanlagen

Teichert, J.

  • Lecture (Conference)
    Univ. Magdeburg, Inst. f. experimentelle Physik, Nov. 27, 1997

Permalink: https://www.hzdr.de/publications/Publ-2524
Publ.-Id: 2524


Monte-Carlo and rate-equation simulations describing the evolution of nanoclusters in high-dose ion implantation

Strobel, M.

  • Lecture (others)
    Solid State Division, Oak Ridge National Laboratory, Oak Ridge, USA, Oct. 23, 1997

Permalink: https://www.hzdr.de/publications/Publ-2523
Publ.-Id: 2523


Medium Effects in Kaon and Antikaon Production in Nuclear Collisions at Subthreshold Beam Energies

Laue, F.; Sturm, C.; Böttcher, I.; Debowski, M.; Förster, A.; Grosse, E.; Koczon, P.; Kohlmeyer, B.; Mang, M.; Naumann, L.; Oeschler, H.; Pühlhofer, F.; Schwab, E.; Senger, P.; Shin, Y.; Speer, J.; Ströbele, H.; Surowka, G.; Uhlig, F.; Wagner, A.; Walus, W.

  • Physical Review Letters Volume 82, Number 8, 22 February 1999, 1640-1643

Permalink: https://www.hzdr.de/publications/Publ-2522
Publ.-Id: 2522


High energy implantation into silicon: Gettering and Defect Engineering

Skorupa, W.

  • Lecture (others)
    Bell Labs, Lucent Technologies, Murray Hill, NJ, USA, Dec. 8, 1997

Permalink: https://www.hzdr.de/publications/Publ-2521
Publ.-Id: 2521


Ion beam processing of Semiconductors: Research activities at the Forschungszentrum Rossendorf

Skorupa, W.

  • Lecture (others)
    VARIAN Company, Gloucester, MA, USA, Dec. 4, 1997

Permalink: https://www.hzdr.de/publications/Publ-2520
Publ.-Id: 2520


Blaue Lumineszenz hoher Intensität aus implantierten SiO2-Schichten: Nanocluster oder ....?

Skorupa, W.

  • Lecture (others)
    Innovationskolleg "Methoden und Materialsysteme für den Nanometerbereich", Institut für Physik, TU Chemnitz, Oct. 24, 1997

Permalink: https://www.hzdr.de/publications/Publ-2519
Publ.-Id: 2519


Strong blue photo-and electroluminescence from ion beam synthesized Ge-rich SiO2-layers

Skorupa, W.

  • Lecture (others)
    Dept. de Fisica Aplicada i Electronica, Univ.Barcelona, Spain, Nov. 11, 1997
  • Lecture (others)
    Naval Res. Lab, Electronics Division, Washington, D.C., USA, Nov. 26, 1997

Permalink: https://www.hzdr.de/publications/Publ-2518
Publ.-Id: 2518


Defectengineering and gettering by high energy implantation into Silicon

Skorupa, W.

  • Lecture (others)
    Center for Analysis of Substances, Moscow, Russia, May 26, 1997

Permalink: https://www.hzdr.de/publications/Publ-2517
Publ.-Id: 2517


Hochenergieimplantation in Silicium: Defekt-Engineering und Gettern

Skorupa, W.

  • Lecture (others)
    Institut für Physik, FSU Jena, May 16, 1997

Permalink: https://www.hzdr.de/publications/Publ-2516
Publ.-Id: 2516


Ionenstrahlmodifizierung von Halbleitermaterialien: Forschungsaktivitäten am Institut für Ionenstrahlphysik und Materialforschung

Skorupa, W.

  • Lecture (others)
    Vortrag zur Evaluierung durch den Wissenschaftlichen Beirat des FZR, Rossendorf, Apr. 29, 1997
  • Lecture (others)
    Treffen der Dresdener Forschungsinstitute mit der Sächsischen Industrie, Dresden, June 27, 1997

Permalink: https://www.hzdr.de/publications/Publ-2515
Publ.-Id: 2515


Verschleißschutz von Alumnium- und Magnesiumlegierungen durch Ionenimplantation

Richter, E.; Chudoba, T.; Wieser, E.

  • Lecture (others)
    Innovative Verfahren der Oberflächenvergütung von Leichtmetallen, Essen, June 5, 1997

Permalink: https://www.hzdr.de/publications/Publ-2514
Publ.-Id: 2514


Strong blue and violet light emission from silicon- and germanium-implanted silicon dioxide

Rebohle, L.

  • Lecture (others)
    Bell Labs, Lucent Technologies, Murray Hill, NJ, USA, Dec. 8, 1997

Permalink: https://www.hzdr.de/publications/Publ-2513
Publ.-Id: 2513


Erzeugung blauer Lumineszenz-Zentren in SiO2 durch Ionenstrahlsynthese

Rebohle, L.

  • Lecture (others)
    Vortrag zur Evaluierung durch den Wissenschaftlichen Beirat des FZR, Rossendorf, Apr. 4, 1997

Permalink: https://www.hzdr.de/publications/Publ-2512
Publ.-Id: 2512


Theoretische Beschreibung von Implantationsprozessen: Grundlagen, Methoden, Anwendungen

Posselt, M.

  • Lecture (Conference)
    Sommerschule "Nukleare Sonden und Ionen", Bad Blankenburg, Germany, Sept. 1-5, 1997

Permalink: https://www.hzdr.de/publications/Publ-2511
Publ.-Id: 2511


Recent positron annihilation studies of the CuMn-system

Nicht, E.-M.

  • Lecture (others)
    Lehrstuhl für Tieftemperaturphysik, Univ. Prag, Oct. 30, 1997

Permalink: https://www.hzdr.de/publications/Publ-2509
Publ.-Id: 2509


Ionenstrahlen in Forschung und Technik

Möller, W.

  • Lecture (others)
    Physikalisches Kolloquium des Inst. für Physikalische Hochtechnologie, Jena, June 4, 1997

Permalink: https://www.hzdr.de/publications/Publ-2508
Publ.-Id: 2508


Ion beam analysis in Europe and Germany

Möller, W.

  • Lecture (others)
    Univ. of Surrey, Dept. Electrica Engineering, Guildford, U.K., Feb. 4, 1997

Permalink: https://www.hzdr.de/publications/Publ-2507
Publ.-Id: 2507


Das Rossendorfer Strahlrohr ROBL an der ESRF

Matz, W.

  • Lecture (others)
    Zentrumsseminar FZR, Dec. 4, 1997

Permalink: https://www.hzdr.de/publications/Publ-2506
Publ.-Id: 2506


Synchrotronstrahlung: Eigenschaften, Quellen, Anwendungen

Matz, W.

  • Lecture (others)
    Zentrumsseminar FZR, Nov. 20, 1997

Permalink: https://www.hzdr.de/publications/Publ-2505
Publ.-Id: 2505


Der Materialforschungsmeßplatz der Rossendorfer Beamline an der Europäischen Synchrotronstrahlungs-quelle in Grenoble

Matz, W.

  • Lecture (others)
    TU Dresden, Institut für Kristallographie und Festkörperphysik, Nov. 11, 1997

Permalink: https://www.hzdr.de/publications/Publ-2504
Publ.-Id: 2504


Experimente der Materialforschung an ROBL

Matz, W.; Prokert, F.; Eichhorn, F.; Schell, N.; Betzl, M.

  • Lecture (others)
    Nutzertreffen ROBL, FZR, Rossendorf, June 19, 1997

Permalink: https://www.hzdr.de/publications/Publ-2503
Publ.-Id: 2503


ROBL: Strahlrohr und Experimentierausrüstung

Matz, W.

  • Lecture (others)
    Nutzertreffen ROBL, FZR, Rossendorf, June 19, 1997

Permalink: https://www.hzdr.de/publications/Publ-2502
Publ.-Id: 2502


Basics and applications of plasma immersion ion implantation

Mändl, S.

  • Lecture (others)
    University of Augsburg, Nov. 20, 1997

Permalink: https://www.hzdr.de/publications/Publ-2501
Publ.-Id: 2501


Plasma immersion ion implantation

Mändl, S.

  • Lecture (others)
    City University of Hongkong, Oct. 13, 1997

Permalink: https://www.hzdr.de/publications/Publ-2500
Publ.-Id: 2500


Defective zones in Si detected by means of metal gettering

Kögler, R.

  • Lecture (others)
    Univ. Barcelona, Dept. Fisica Aplicada i Electronica, Barcelona, Spain, Nov. 10, 1997

Permalink: https://www.hzdr.de/publications/Publ-2499
Publ.-Id: 2499


Detektion von Defektzonen in ionenimplantiertem Si

Kögler, R.

  • Lecture (others)
    MLU Halle-Wittenberg, FB Physik, Halle (Saale), Apr. 10, 1997

Permalink: https://www.hzdr.de/publications/Publ-2498
Publ.-Id: 2498


Theoretische Grundlagen der Ionenstrahlsynthese: Computersimulationen auf atomarer Ebene

Heinig, K.-H.

  • Lecture (others)
    Seminar an der TU Chemnitz, Chemnitz, Germany, May 13, 1997

Permalink: https://www.hzdr.de/publications/Publ-2497
Publ.-Id: 2497


Theoretische Grundlagen der Ionenstrahlsynthese: Beschreibungen basierend auf Ratengleichungen

Heinig, K.-H.

  • Lecture (others)
    Seminar an der TU Chemnitz, Chemnitz, Germany, May 6, 1997

Permalink: https://www.hzdr.de/publications/Publ-2496
Publ.-Id: 2496


Grundlagen der Synthese von Nanoclustern und dünnen Schichten mit Ionenstrahlen

Heinig, K.-H.

  • Lecture (others)
    Seminar am ISI des Forschungszentrum Jülich, Jülich, Germany, February 27, 1997

Permalink: https://www.hzdr.de/publications/Publ-2495
Publ.-Id: 2495


Implantations- und Ausheileffekte in SiC

Heera, V.

  • Lecture (others)
    Institutsseminar FWI-FZR, Rossendorf, June 5, 1997

Permalink: https://www.hzdr.de/publications/Publ-2494
Publ.-Id: 2494


Verschleißfester Edelstahl – ein Erfolg der Ionenstrahltechnik

Günzel, R.; Richter, E.

  • Lecture (others)
    Workshop "Werkstoffe innovativ", Hannovermesse 1997

Permalink: https://www.hzdr.de/publications/Publ-2493
Publ.-Id: 2493


Plasma source ion implantation in the Forschungszentrum Rossendorf: state of the art and recent developments

Günzel, R.

  • Lecture (others)
    IPR, Ghandinagar, March 18, 1997

Permalink: https://www.hzdr.de/publications/Publ-2492
Publ.-Id: 2492


Recent developments of in situ ion beam analysis at Rossendorf

Grötzschel, R.

  • Lecture (others)
    Faure, South Africa, Nov. 19, 1997

Permalink: https://www.hzdr.de/publications/Publ-2491
Publ.-Id: 2491


Grundlagen der Ionenstrahlanalytik

Grötzschel, R.

  • Lecture (others)
    TU Chemnitz, Graduiertenkolleg, Jan./Feb., 1997

Permalink: https://www.hzdr.de/publications/Publ-2490
Publ.-Id: 2490


Möglichkeiten der Oberflächenanalytik mit Ionenstrahlverfahren im Forschungszentrum Rossendorf

Grambole, D.

  • Lecture (others)
    TU Dresden, Inst. f. Werkstoffwissenschaften, Aug. 13, 1997

Permalink: https://www.hzdr.de/publications/Publ-2489
Publ.-Id: 2489


Ellipsometry as a diagnostic tool for thin film processing

Fukarek, W.

  • Lecture (others)
    Institute of Polymer Physics, Charles University Prague, Nov. 27, 1997

Permalink: https://www.hzdr.de/publications/Publ-2488
Publ.-Id: 2488


The Rossendorf electrostatic accelerator

Friedrich, M.

  • Lecture (others)
    SINR Shanghai, Dept. of Physics, P. R. China, April 17, 1997

Permalink: https://www.hzdr.de/publications/Publ-2487
Publ.-Id: 2487


Progress in the study of vacancy-type defects in ion implanted SiC by slow positron implantation spectroscopies

Brauer, G.

  • Lecture (others)
    Univ. of East Anglia (School of Physics), Norwich, Nov. 7, 1997

Permalink: https://www.hzdr.de/publications/Publ-2486
Publ.-Id: 2486


Positron studies of defects in ion-implanted and annealed SiC

Brauer, G.

  • Lecture (others)
    Lawrence Livermore National Lab, Physics and Space Technology, Livermore, USA, May 22, 1997

Permalink: https://www.hzdr.de/publications/Publ-2485
Publ.-Id: 2485


Ionenstrahlsynthese von Nanoclustern für elektrooptische Anwendungen

von Borany, J.

  • Lecture (others)
    1. Materialwissenschaftliche Tagung der WGL, Berlin, Oct. 14, 1997

Permalink: https://www.hzdr.de/publications/Publ-2484
Publ.-Id: 2484


Ionenstrahlphysik und Technik im Forschungszentrum Rossendorf

von Borany, J.

  • Lecture (others)
    FernUniversität Hagen, FB Elektrotechnik, Jan. 31, 1997

Permalink: https://www.hzdr.de/publications/Publ-2483
Publ.-Id: 2483


Zusammenarbeit mit industriellen Einrichtungen (Industriekooperation)

von Borany, J.

  • Lecture (others)
    Vortrag zur Evaluierung durch den Wissenschaftlichen Beirat des FZR, Rossendorf, Apr. 29, 1997

Permalink: https://www.hzdr.de/publications/Publ-2482
Publ.-Id: 2482


Neutronenstreuung am RFR

Betzl, M.

  • Lecture (others)
    Vortrag auf Kolloquium des VKTA - 40 Jahre Rossendorfer Forschungsreaktor RFR, Rossendorf, Dec. 16, 1997

Permalink: https://www.hzdr.de/publications/Publ-2481
Publ.-Id: 2481


Impurity gettering effects in separation-by-implanted-oxygen (SIMOX) structures - what getters what, where and how

Yankov, R. A.; Kaschny, J. R.; Fichtner, P. L. F.; Mücklich, A.; Kreißig, U.; Skorupa, W.

  • Lecture (Conference)
    10th Biennial Conf. on Insulating Films on Semiconductors, Stenungsund, Sweden, June 11 - 14, 1997

Permalink: https://www.hzdr.de/publications/Publ-2480
Publ.-Id: 2480


Ionenimplantation aus Vakuumbogenplasmen

Witke, W.; Siemroth, P.; Brückner, J.; Brutscher, J.; Richter, E.

  • Lecture (Conference)
    8. Bundesdeutsche Fachtagung Plasmatechnologie, Dresden, Sept. 14 - 17, 1997

Permalink: https://www.hzdr.de/publications/Publ-2479
Publ.-Id: 2479


Kristallgitter-Einbau implantierter Ionen in 6H-SiC

Wirth, H.; Voelskow, M.; Panknin, D.; Skorupa, W.

  • Lecture (Conference)
    DPG-Frühjahrstagung, Münster, March 17 - 21, 1997

Permalink: https://www.hzdr.de/publications/Publ-2478
Publ.-Id: 2478


Investigation of ion-implantation induced damage in 6H-SiC by RBS/C and Positron Annihilation Spectroscopy

Wirth, H.; Anwand, W.; Brauer, G.; Voelskow, M.; Panknin, D.; Skorupa, W.; Coleman, P. G.

  • Lecture (Conference)
    Int. Conf. on Silicon Carbide, III-Nitrides and Related Materials, Stockholm, Sweden, Aug. 31 - Sept. 5, 1997

Permalink: https://www.hzdr.de/publications/Publ-2477
Publ.-Id: 2477


Synchrotron X-ray studies of AlGaAs/GaAs epitaxial layers implanted with Se ions

Wieteska, K.; Wierzchowski, W.; Turos, A.; Grötzschel, R.

  • Lecture (Conference)
    4th Symp. on Synchrotron Radiation, Krakow, PL, 1997

Permalink: https://www.hzdr.de/publications/Publ-2476
Publ.-Id: 2476


Teilchenbeschleuniger - Grundlagen

Guratzsch, H.

Ausgehend von der Wirkung elektischer und magnetischer Felder auf elektrisch geladene Teilchen, wie Elektronen und Ionen, wird die Funktion der Teilchenbeschleuniger erläutert. Auf die Analogie zwischen Lichtoptik und Elektronen- bzw. Ionenoptik wird bei der Betrachtung der Strahlführung hingewiesen. Wichtig für das Funktionieren eines Beschleunigers ist die korrekte Berücksichtigung der kinematischen Beziehungen zwischen Energie, Masse und Geschwindigkeit. Mit Hilfe von schematischen Darstellungen werden verschiedene Beschleunigertypen vorgestellt. Die Emission von Synchrotronstrahlung begrenzt bei Elektronen-Kreisbeschleunigern die praktisch erreichbare Energie. Der LEP-Ring im CERN erreicht mit 27 km Umfang eine Energie von 50 GeV. Für noch höhere Energien müssen Linearbeschleuniger gebaut werden. Am TESLA-Projekt für einen 33 km langen Elektronen-Positronen-Collider mit einer Energie im Wechselwirkungspunkt von 500 GeV wird im DESY Hamburg gearbeitet. Auf der Basis der supraleitenden TESLA-Beschleunigungsstrukturen wird derzeit im Forschungszentrum Rossendorf ein 40-MeV-Linearbeschleuniger für Elektronen aufgebaut. In Zukunft werden mit diesem Beschleuniger kern- und strahlungsphysikalische Forschungsarbeiten durchgeführt sowie kohärente Infrarotstrahlung (Freier-Elektronen-Laser) für materialwissenschaftliche Untersuchungen erzeugt.

Keywords: Beschleuniger; Elektronen; Ionen

  • Lecture (others)
    Lehrerfortbildung 1999 im Forschungszentrum Rossendorf, 26. August 1999

Permalink: https://www.hzdr.de/publications/Publ-2475
Publ.-Id: 2475


Blue photoluminescence from high-dose Si+- and Ge+-implanted silicon-dioxide layers

Tyschenko, I. E.; Kachurin, G. A.; Zhuravlev, K. S.; Pazdnikov, N. A.; Volodin, V. A.; Gutakovsky, A. K.; Leier, A. F.; Fröb, H.; Leo, K.; Böhme, T.; Rebohle, L.; Yankov, R. A.; Skorupa, W.

  • Lecture (Conference)
    Int. Workshop des Innovationskollegs der TU Chemnitz "Methoden und Materialsysteme für den Nanometerbereich", Schöneck/Vogtl., March 3 - 5, 1997

Permalink: https://www.hzdr.de/publications/Publ-2474
Publ.-Id: 2474


A computational model of the formation of (SiC)1-x(AlN)x structures by hot, high-dose N+ and Al+ coimplants in 6H-SiC

Trushin, Y. V.; Yankov, R. A.; Kharlamov, V. S.; Kulikov, D. V.; Tsigankov, D. N.; Kreißig, U.; Voelskow, M.; Pezoldt, J.; Skorupa, W.

  • Lecture (Conference)
    Int. Conf. on Silicon Carbide, III-Nitrides and Related Materials, Stockholm, Sweden, Aug. 31 - Sept. 5, 1997

Permalink: https://www.hzdr.de/publications/Publ-2473
Publ.-Id: 2473


Formation and self-organization of nanoclusters by ion beam synthesis: a combined atomistic and continuum description

Strobel, M.; Heinig, K.-H.; Möller, W.

  • Lecture (Conference)
    MRS Fall Meeting, Boston, USA, Dec. 1-5, 1997

Permalink: https://www.hzdr.de/publications/Publ-2472
Publ.-Id: 2472


Computersimulationen zur Evolution von Nanoclustern

Strobel, M.; Heinig, K.-H.; Möller, W.

  • Lecture (Conference)
    Frühjahrstagung der DPG, Münster, Germany, March 17-21, 1997

Permalink: https://www.hzdr.de/publications/Publ-2471
Publ.-Id: 2471


A comparative study of ERDA, EELS and XPS for structural analysis of amorphous carbon nitride films

Späth, C.; Kühn, M.; Richter, F.; Falke, U.; Hietschold, M.; Kilper, R.; Kreißig, U.

  • Lecture (Conference)
    Int. Conf. Diamond '97

Permalink: https://www.hzdr.de/publications/Publ-2470
Publ.-Id: 2470


MeV-Implantation in Silicium

Skorupa, W.

  • Lecture (Conference)
    20. Dt. Nutzertreffen Ionenimplantation, SIMEC-Werk der Siemens AG, Dresden, Oct. 29 -30, 1997

Permalink: https://www.hzdr.de/publications/Publ-2469
Publ.-Id: 2469


Composition, structural and hardeness change of aluminium implanted with carbon

Segrouchni, Z.; Betzl, M.; Richter, E.

  • Lecture (Conference)
    SMMIB 97, Gatlinburg, TE, USA, Sept. 1997

Permalink: https://www.hzdr.de/publications/Publ-2468
Publ.-Id: 2468


Abscheidung von Si/SiO2-Cluster-Schichten durch reaktives Magnetron-Sputtern

Seifarth, H.; Grötzschel, R.; Markwitz, A.; Matz, W.; Nitsche, P.; Rebohle, L.

  • Lecture (Conference)
    8. Bundesdeutsche Fachtagung Plasmatechnologie, Dresden, Sept. 14 - 17, 1997

Permalink: https://www.hzdr.de/publications/Publ-2467
Publ.-Id: 2467


Atomistic modeling of ion implantation within a 2d process simulator

Schmidt, B.; Posselt, M.; Strecker, N.; Feudel, T.

  • Lecture (Conference)
    MRS Fall Meeting, Boston, USA, Dec. 1 - 5, 1997
  • Contribution to external collection
    Mat. Res. Soc. Symp. Proc. 490 (1998) 21

Permalink: https://www.hzdr.de/publications/Publ-2466
Publ.-Id: 2466


Applying ANSYS/Multiphysics to In-Vessel and Ex-Vessel Core Melt Phenomena

Willschütz, H.-G.

For future nuclear power plants it is demanded that there are no consequences for the environment and the population even in the closest vicinity of the plant during and after every possible accident scenario. This includes the hypothetical scenario of a severe accident with subsequent core meltdown, corium relocation and formation of a melt pool with internal heat sources in the reactor pressure vessel (RPV) lower head (LH). Some reactor concepts have the aim to arrest the melt in the lower head removing the decay heat by external water flooding. In other concepts a dry reactor pit is designed and after the vessel failure a core catcher shall assure the long term stabilization of the corium within the containment.

For both strategies investigations on the transient behaviour of the RPV or of the core catcher are necessary. Two kinds of vessel failure can be distinguished: thermal and structural failure. Thermal failure means that the heat flux through the vessel wall becomes so high that the steel solidus temperature at any position of the vessel outside is exceeded. Structural failure means that a combination of thermal and mechanical loads causes the failure, e. g. the wall thickness of the vessel is reduced by thermal ablation and at the same time the internal pressure and the gravitational forces induce creeping with subsequent creep failure.

Different melt configurations can be assumed. They can be distinguished by the melt masses released into the LH, the melt composition, the segregation behaviour of the oxidic and the metallic component, and the density and the distribution of the internal heat sources. One of the most dangerous accident scenarios for a pressurized water reactor (PWR) assumes the relocation of a melt mass in the range of 200 Mg or more which is segregated into some 150 Mg of the heavier oxidic component at the bottom and some 50 Mg of a metallic melt above. The oxidic melt is surrounded by an oxidic crust due to the high solidification temperature of the oxide. The internal heat sources are mainly in the oxidic component, but due to the geometric configuration and the different fluid properties the highest heat fluxes and the major thermal ablation is expected between the metallic layer and the vessel wall. This phenomenon is called focussing effect.

An in-vessel-scenario of a PWR has been assumed and modelled with ANSYS/ Multiphysics. Using this Finite Element (FE) code package it is possible to simulate the velocity and temperature field for a fluid region and the corresponding temperature field within the surrounding solid structures. This thermo-fluiddynamic calculation can be coupled with a mechanical FE-model of the solid structures to analyse the stress and possible creeping forced by the mechanical and thermal loads. In this presentation, the recent modelling approach and the results obtained with the code ANSYS/Multiphysics are discussed. An outlook on the further development is given.

Keywords: Severe Accident; Core Meltdown; In-Vessel-Retention; Core Catcher; Finite Element Code; Transient Calculation; Computational Fluid Dynamics; Coupled Solid Structures; Thermal Failure; Structural or Creep Failure

  • Lecture (others)
    Seminar held at the Division of Nuclear Power Safety at the Royal Institute of Technology, Stockholm, Sweden, August 2nd, 1999.

Permalink: https://www.hzdr.de/publications/Publ-2465
Publ.-Id: 2465


Dünnschichtsysteme für die Photo- und Elektrolumineszenz

Schmidt, B.; von Borany, J.; Grötzschel, R.; Heinig, K.-H.; Markwitz, A.; Matz, W.; Nitzsche, P.; Rebohle, L.; Seifarth, H.; Strobel, M.; Skorupa, W.

  • Lecture (Conference)
    Photonik-Symposium, Würzburg, Oct. 8 - 10, 1997

Permalink: https://www.hzdr.de/publications/Publ-2460
Publ.-Id: 2460


Influence of the substrate structure (SIMOX, bulk Si) on the SiC synthesis by high dose carbon implantation

Romano-Rodriguez, A.; Kögler, R.; Bachrouri, A.; Perez-Rodriguez, A.; Serre, C.; Reuther, H.; Voelskow, M.; Skorupa, W.; Calvo-Barrio, L.; Morante, J. R.

  • Lecture (Conference)
    7th Int. Conf. on Gettering and Defect Engineering in Semiconductor Technology, GADEST'97, Spa, Belgium, Oct. 5-10, 1997

Permalink: https://www.hzdr.de/publications/Publ-2459
Publ.-Id: 2459


Nitrierung austenitischer Edelstähle mittels Plasma-Immersions-Ionenimplantation

Richter, E.

  • Lecture (Conference)
    OWT-97, Chemnitz, June 16-18, 1997

Permalink: https://www.hzdr.de/publications/Publ-2458
Publ.-Id: 2458


The influence of heat treatment during the implantation of oxygen into magnesium

Richter, E.; Reuther, H.; Kreißig, U.

  • Lecture (Conference)
    SMMIB 97, Gatlinburg, TE, USA, Sept. 1997

Permalink: https://www.hzdr.de/publications/Publ-2457
Publ.-Id: 2457


Investigation of Fe-Mg-alloys produced by ion implantation

Reuther, H.; Betzl, M.; Matz, W.; Richter, E.

  • Lecture (Conference)
    10th Int. Conf. Surface Modification of Metals by Ion Beams, Gatlinburg, USA, Sept. 21 - 26, 1997

Permalink: https://www.hzdr.de/publications/Publ-2456
Publ.-Id: 2456


Angle dependent Mössbauer spectroscopy on beta-FeSi2 single crystals

Reuther, H.; Behr, G.; Dobler, M.; Teresiak, A.

  • Lecture (Conference)
    Int. Conf. Appl. Mössbauer Effect, Rio de Janeiro, Brazil, Sept. 14 - 20, 1997

Permalink: https://www.hzdr.de/publications/Publ-2455
Publ.-Id: 2455


Alloying by high dose ion implantation of iron into magnesium and aluminium

Reuther, H.

  • Invited lecture (Conferences)
    Int. Conf. Appl. Mössbauer Effect, Rio de Janeiro, Brazil, Sept. 14 - 20, 1997 (invited lecture)

Permalink: https://www.hzdr.de/publications/Publ-2454
Publ.-Id: 2454


XRS and TEM investigations on argon profiled metal-silicon thin films

Reiche, R.; Oswald, S.; Thomas, J.; Wetzig, K.; Reuther, H.; Dobler, M.

  • Lecture (Conference)
    7th European Conf. Appl. Surf. Interface Analysis, Göteborg, Sweden, June 16 - 20, 1997

Permalink: https://www.hzdr.de/publications/Publ-2452
Publ.-Id: 2452


Erzeugung blauer Lumineszenzzentren durch Ionenstrahlsynthese

Rebohle, L.; Tyschenko, I. E.; Fröb, H.; Leo, K.; Yankov, R. A.; Skorupa, W.

  • Lecture (Conference)
    DPG-Frühjahrstagung, Münster, March 17 - 21, 1997

Permalink: https://www.hzdr.de/publications/Publ-2451
Publ.-Id: 2451


Strong blue photo-and electroluminescence from ion beam synthesized Ge-rich SiO2-layers

Rebohle, L.; von Borany, J.; Grötzschel, R.; Markwitz, A.; Schmidt, B.; Tyschenko, I. E.; Skorupa, W.; Fröb, H.; Leo, K.

  • Lecture (Conference)
    II. Int. Workshop on Light Emitting Low Dimensional Silicon Structures, Lagonissi-Attiki, Greece, June 23 - 25, 1997

Permalink: https://www.hzdr.de/publications/Publ-2450
Publ.-Id: 2450


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