Fast neutron detection with germanium detectors: computation of response functions for the 692 keV inelastic scattering peak
- 作者：Fehrenbacher ; G. ; Meckbach ; R. ; Paretzke ; H.G.
- 刊名：Nuclear Instruments and Methods in Physics Research Section A ; Accelerators ; Spectrometers ; Detectors and Associated Equipment
- 出版年：1996
- 期刊代码：41_01689002
- 类别：ph
- 出版时间：March 21, 1996
- 卷：372
- 期：1-2
- 页码：239-245
- 文件大小：604 K
摘要
The dependence of the shape of the right-sided broadening of the inelastic scattering peak at 692 keV in the pulse-height distribution measured with a Ge detector in fast neutron fields on the energy of the incident neutrons has been analyzed. A model incorporating the process contributing to the energy deposition that engender the peak, including the partitioning of the energy deposition by the Ge recoils, was developed. With a Monte Carlo code based on this model, the detector response associated with this peak was computed and compared with results of measurements with quasi-monoenergetic neutrons for energies between 0.88 and 2.1 MeV. A set of 80 responses functions for neutron energies in the range from the reaction threshold at 0.7 to 6 MeV was computed, which will serve as a starting point for methods, which aim at obtaining information on the spectral distribution of fast neutron fields for this energy range from measurements with a Ge detector.