Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

2 Publications
Probing channeling radiation influenced by ultrasound
Wagner, W.; Azadegan, B.; Büttig, H.; Grigoryan, L. S.; Sobiella, M.; Pawelke, J.;
The effect of ultrasonic vibrations excited in quartz single crystals on channeling radiation (CR) emitted by relativistic electrons was probed experimentally at medium energy at the radiation source ELBE.

Essential preconditions for these investigations have been created by preceding series of measurements of planar CR on alpha-quartz as well as by extensive theoretical work concerning the treatment of the influence of ultrasound (US) on CR emission. First dedicated experiments became possible because the interaction phenomena and expected effects could certainly be predicted and simulated.

Compressional waves of suitable frequency were induced in x-cut quartz crystals by means of appropriately designed RF cavities applying the reverse piezoelectric effect. Although at the available electron energies the necessary resonance condition has been reached only for selected transitions of electrons channeled along specific crystallographic planes of the quartz single crystal, the occurrence of US stimulated CR should be evident.
Keywords: channeling radiation, quartz single crystal, ultrasound
  • Contribution to proceedings
    3rd International Conference on Charged and Neutral Particles Channeling Phenomena (Channeling 2008), 25.10.-01.11.2008, Erice, Sicily, Italy
    Probing channeling radiation influenced by ultrasound, Singapore, London: World Scientific, Science and Culture Series
  • Invited lecture (Conferences)
    3rd International Conference on Charged and Neutral Particles Channeling Phenomena (Channeling 2008), 25.10.-01.11.2008, Erice, Sicily, Italy

Publ.-Id: 11947 - Permalink