Title :
Detection of thermal and resonance neutrons using oxide scintillators
Author :
Ryzhikov, V. ; Nagornaya, L. ; Burachas, S. ; Piven, L. ; Danshin, E. ; Zelenskaya, O. ; Chernikov, V.
Author_Institution :
Inst. for Single Crystals, STC for Radiat. Instrum. Concern, Kharkov, Ukraine
fDate :
12/1/2000 12:00:00 AM
Abstract :
Results are presented for pulse amplitude spectra of crystals based on complex oxides irradiated in mixed fields of neutron and gamma-radiation. These crystals-CdWO4 (CWO), Gd2Si 2O5(Ce) (GSO(Ce)) and NaBi(WO4)2 -include elements with large radiation capture section of thermal and resonance neutrons. It has been shown that it is possible in principle to separately detect products of nuclear reactions of radiation capture of neutrons on Cd, W, Gd and Na nuclei. This is realized by the appropriate choice of energy windows during detection of nuclear reaction products and the accompanying gamma-radiation using scintillators with different decay times and different interaction cross-sections, as well as with the help of screens selectively absorbing neutrons or gamma-quanta
Keywords :
cadmium compounds; cerium; gadolinium compounds; neutron detection; sodium compounds; solid scintillation detectors; CdWO4; Gd2Si2O5(Ce); Gd2Si2O5:Ce; NaBi(WO4)2; energy windows; gamma-quanta; interaction cross-sections; oxide scintillators; pulse amplitude spectra; radiation capture section; resonance neutrons; thermal neutrons; Crystals; Gamma ray detection; Gamma ray detectors; Instruments; Neutrons; Noise measurement; Protection; Radiation detectors; Resonance; Solid scintillation detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
