Efficiency calibration of the ELBE nuclear resonance fluorescence setup using a proton beam.

Trompler, E.; Bemmerer, D.; Beyer, R.; Broggini, C.; Caciolli, A.; Erhard, M.; Fülöp, Zs.; Grosse, E.; Gyürky, Gy.; Hannaske, R.; Junghans, A. R.; Marta, M.; Menegazzo, R.; Nair, C.; Schwengner, R.; Szücs, T.; Wagner, A.; Yakorev, D.

Efficiency calibration of the ELBE nuclear resonance fluorescence setup using a proton beam.

Trompler, E.; Bemmerer, D.; Beyer, R.; Broggini, C.; Caciolli, A.; Erhard, M.; Fülöp, Z.; Grosse, E.; Gyürky, G.; Hannaske, R.; Junghans, A. R.; Marta, M.; Menegazzo, R.; Nair, C.; Schwengner, R.; Szücs, T.; Wagner, A.; Yakorev, D.

The nuclear resonance fluorescence (NRF) setup at ELBE uses bremsstrahlung with endpoint energies up to 20 MeV. The setup consists of four 100% high-purity germanium detectors, each surrounded by a BGO escape-suppression shield and a lead collimator. The detection efficiency up to E = 12 MeV has been determined using the proton beam from the FZD Tandetron and well-known resonances in the 11B(p,gamma)12C, 14N(p,gamma)15O, and 27Al(p,gamma)28Si reactions. The deduced efficiency curve allows to check efficiency curves calculated with GEANT. Future photon-scattering work can be carried out with improved precision at high energy. This work has been supported in part by the European Union (FP6 AIM RITA 025646).

Keywords: ELBE; HPGe efficiency calibration; Tandetron

Lecture (Conference)
Frühjahrstagung des DPG - Fachverbands Hadronen und Kerne and European Nuclear Phyisics Conference (EuNPC), 16.-20.03.2009, Bochum, Deutschland

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