Development and characterization of CsI(Tl) crystal for use as a radiation detector
DOI:
https://doi.org/10.15392/bjrs.v9i1A.1586Keywords:
Scintillator Detector, Crystal, Response FunctionAbstract
Cesium iodide crystal activated with thallium (CsI(Tl)) is used as radiation sensor because of its favorable characteristics as scintillator, when excited by gamma radiation. This crystal has good mechanical strength and it is relatively little hygroscopic. In the present work, the CsI(Tl) crystal was grown in the Nuclear Energy Research Institute (IPEN/CNEN/SP) by Brigdman technique, in two different formats: (a) cylindric (∅ 20.1 mm x 11.9 mm) and (b) parallelepiped ( c 12.3 mm x 19.5 mm). The scintillator response was studied through five gamma radiation sources: 99mTc (140 keV), 137Cs (662 keV), 60Co (1173 keV, 1333 keV) and 22Na (511 keV, 1275keV). The crystals were coupled to a photomultiplier tube using 0.5 McStokes viscosity silicone grease as the optical interface. All electronics for signal measurements were developed at IPEN. Luminescence property of the CsI(Tl) crystal was excited by the radiation from a 99mTc source. The energy resolution of the crystalline detector was determined by the FWHM parameter, corresponding to the photopeak width at half of its height. Gamma radiation was spectrometry performed with the following sources: 99mTc, 241Ba, 137Cs, 60Co and 22Na.
Downloads
References
(1)BALAMURUGANA, N. ; ARULCHAKKARAVARTHIB, A. ; SELVAKUMARC, S. ; LENINA M. ;, RAKESH KUMARD, MURALITHARD, S. ; SIVAJIC, K. ; RAMASAMYA, P. Growth and characterization of undoped and thallium doped cesium iodide single crystals, Journal of Crystal Growth, v. 286, p. 294-299, 2006.
(2)GRASSMANN, H. ; LORENZ, E. ; MOSER, G. H. Properties of CsI(Tl)- Renaissance of an old scintillation material, Nuclear Instrument. Methods Physics Research, v. 228, p.323-326, 1985.
(3)PURSLEY, J. Determination of Thallium Doping in Cesium Iodide Scintillator Crystals, NSCL, Michigan State University, East Lansing, MI 48824, 2001.
(4)GONG, W. G. ; KIM, D. Y. ; POGGI, G. ; CHEN, Z. ; GELBKE, K. C. ; LYNCH, G. W. ; MAIER, R. M. ; MURAKAMI T. ;, TSANG, B. M. ; XU, M. H. Resolution tests of Csl(Tl) scintillators readout by PIN diodes, Nuclear Instrument. Methods Physics Research, v. A268, p. 190-199, 1988.
(5)GUNJI, S.; HANADA N.; KOSHINO T.; KAMAE T.; MIYASAKI S.; TAKAHASHI T.; TAMURA, T.; YAMAGAMI, T.; MURAKAMI, H.; MORI, K.; TANAKA, H.; YAMAMOTO, K. Use of a large area photodiode in CsI(Tl) scintillation counters, Nuclear Instrument. Methods Physics Research, v. A295, p. 400-404, 1990.
(6)HAMADA, M. M. ; HASHIMOTO, T. ; SHIRAISHI, F. Performance of CsI(Tl) crystal coupled to photodiode, Sixth workshop on radiation detectors and their uses, Japan, January 29-30, p. 55-57, 1991.
(7)HAMADA, M. M.; MESQUITA, C. H.; RELA, R. P.; HASHIMOTO, T.; SHIRAISHI, F. Estudo do desempenho da combinação do cristal de CsI(Tl) com fotodiodo tipo PIN, Congresso geral de Energia Nuclear, Associação Brasileira de Energia Nuclear. Rio de Janeiro, July 5-9, v. 2, p. 611- 614, 1992.
(8)KREUTZ, P. ; KUHMICHEL, A. ; PINKENBURG, C. ; POCHODZALLA, J. ; GUO, Y. Z. ; LYNEN, S. H. ; TRAUTMANN. Photodiode readout and pulse analysis of CsI(Tl) scintillator signals, Nuclear Instrument. Methods Physics Research, v. A260, p. 120-123, 1987.
(9)BLANCO, M.; BARELLI, N. ; BENEDETTI. A. V. ; FLOR, S. W. A. Desenvolvimento de um dispositivo para obtenção de monocristais de ligas à base de cobre, Quim. Nova, v. 26, N° 5, 757-762, 2003.
(10) PEREIRA, M. C. C. ; FILHO, T. M. ; LOPES, V. M. ; BERRETA, J. R. ; CÁRDENAS J. P. N. Scintillation Response of CsI:Tl Crystal under neutron, gama, alpha particles and beta excitations. International Nuclear Atlantic Conference - INAC São Paulo, SP, Brazil, October 4-9 (2015).
Published
Issue
Section
License
Copyright (c) 2021 Brazilian Journal of Radiation Sciences
This work is licensed under a Creative Commons Attribution 4.0 International License.
Licensing: The BJRS articles are licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
How to Cite
