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

Volume

47

Issue

6

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

2061

Lastpage

2064

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;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.903847

Filename

903847