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Thermal Neutron Discrimination Using a Novel Phoswich Detector of Gd3Ga3Al2O12:Ce,B and CsI:Tl Single Crystals.
- Source :
- IEEE Transactions on Nuclear Science; Nov2020, Vol. 67 Issue 11, p2415-2420, 6p
- Publication Year :
- 2020
-
Abstract
- A phoswich detector was fabricated using a combination of single-crystal scintillators of CsI:Tl and Gd<subscript>3</subscript>Ga<subscript>3</subscript>Al<subscript>2</subscript>O<subscript>12</subscript>:Ce,B. The performance characteristics of this novel phoswich detector were investigated for thermal neutron detection in the presence of different gamma backgrounds using an Am–Be source and in a research reactor beam line. High atomic density and excellent thermal neutron capture cross section of Gd leads to the high detection efficiency for thermal neutrons in a 1-mm thin disk of Gd<subscript>3</subscript>Ga<subscript>3</subscript>Al<subscript>2</subscript>O<subscript>12</subscript> crystal. The high figure of merit of ~6.5 obtained for thermal neutron detection ensures the detector’s excellent discrimination property in the presence of high gamma background. [ABSTRACT FROM AUTHOR]
- Subjects :
- THERMAL neutrons
SINGLE crystals
NEUTRON counters
DETECTORS
NEUTRON capture
Subjects
Details
- Language :
- English
- ISSN :
- 00189499
- Volume :
- 67
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Nuclear Science
- Publication Type :
- Academic Journal
- Accession number :
- 147133771
- Full Text :
- https://doi.org/10.1109/TNS.2020.3028901