Influence of Materials and Counting-Rate Effects on 3He Neutron Spectrometry
- 1 January 1985
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 32 (1) , 54-59
- https://doi.org/10.1109/tns.1985.4336788
Abstract
The high energy resolution of the Cuttler-Shalev 3He neutron spectrometer causes spectral measurements with this instrument to be strongly susceptible to artifacts caused by the presence of scattering or absorbing materials in or near the detector or the source, and to false peaks generated by pileup coincidences of the rather long-risetime pulses from the detector. These effects are particularly important when pulse-height distributions vary over several orders of magnitude in count rate versus channel. A commercial pile-up elimination circuit greatly improves but does not eliminate the pileup problem. Previously reported spurious peaks in the pulse-height distributions from monoenergetic neutron sources have been determined to be due to the influence of the iron in the detector wall.Keywords
This publication has 1 reference indexed in Scilit:
- High Rfsolution Fast Neutron Spectrometry without Time-of-FlightIEEE Transactions on Nuclear Science, 1979