Approach to unfolding neutron spectra measured by a 3He semiconductor detector

S. Avdic; P. Marinkovic; Milan Pesic; V. Ljubenov

doi:10.1117/12.267861

27 February 1997 Approach to unfolding neutron spectra measured by a ³He semiconductor detector

S. Avdic, P. Marinkovic, Milan Pesic, V. Ljubenov

Proceedings Volume 2867, International Conference Neutrons in Research and Industry; (1997) https://doi.org/10.1117/12.267861
Event: Fifth International Conference on Applications of Nuclear Techniques: Neutrons in Research and Industry, 1996, Crete, Greece

Abstract

In measurements of fast neutron spectra by a ³He semiconductor detector, the unfolding method is not usually required. The unfolding method based on principle of maximum likelihood that incorporates the Gaussian approximation of counting statistics is developed and implemented in the MLMHE3 numerical code for application in fast neutron spectrometry by ³He semiconductor detectors. The derived likelihood equations have been solved using method of the singular value decomposition of the response matrix. For this inverse problem, the detector responses were generated by the Monte Carlo technique.

Citation Download Citation

S. Avdic, P. Marinkovic, Milan Pesic, and V. Ljubenov "Approach to unfolding neutron spectra measured by a ³He semiconductor detector", Proc. SPIE 2867, International Conference Neutrons in Research and Industry, (27 February 1997); https://doi.org/10.1117/12.267861

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