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Novel methods for measuring afterglow in developmental scintillators for X-ray and neutron detection
- Source :
-
Nuclear Instruments & Methods in Physics Research Section A . Sep2011, Vol. 651 Issue 1, p105-109. 5p. - Publication Year :
- 2011
-
Abstract
- Abstract: In this paper we discuss two novel methods of measuring afterglow in scintillators. One method is designed for X-ray detection and the other for neutron detection applications. In the first method a commercial fan-beam scanner of basic design similar to those seen at airports is used to deliver a typically 12ms long X-ray pulse to a scintillator by passing the test equipment through the scanner on the conveyor belt. In the second method the thermal neutron beam from a research reactor is incident on the scintillator. The beam is cut-off in about 1ms using a 10B impregnated aluminum pneumatic shutter, and the afterglow is recorded on a dual range storage oscilloscope to capture both the steady state intensity and the weak decay. We describe these measurement methods and the results obtained for a range of developmental ceramic and glass scintillators, as well as some standard scintillators such as NaI(Tl), LiI(Eu) and the plastic scintillator NE102A. Preliminary modeling of the afterglow is presented. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01689002
- Volume :
- 651
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Nuclear Instruments & Methods in Physics Research Section A
- Publication Type :
- Academic Journal
- Accession number :
- 65333589
- Full Text :
- https://doi.org/10.1016/j.nima.2011.01.001