COMPARATIVE STUDY OF MASS ATTENUATION COEFFICIENTS, EFFECTIVE ATOMIC NUMBERS, AND EFFECTIVE ELECTRON DENSITIES OF EU-DOPED CsCaBrI2, CsSrBrI, AND CsSrClBr2 SCINTILLATORS
Keywords:
Halide scintillators, mass attenuation coefficients, effective atomic numbers, effective electron densitiesAbstract
This work presents comparative studies of mass attenuation coefficients, effective atomic numbers, and effective electron densities of Eu-doped CsCaBrI2, CsSrBrI2, and CsSrClBr2 scintillators at the photon energy range from 100 keV to 1,500 keV using the WinXCom program. The results show that the photoelectric interaction occurs at low energy and at high energy, resulting in a lower rate of interaction. However, at the photon energy range from 251 to 1,500 keV the photoelectric effect cross-section values of all 3 scintillators are very similar. The Compton interaction occurs at the photon energy range from 100 to 250 keV. At 100 keV, the Eu-doped CsCaBrI2 scintillator has higher mass attenuation coefficients than the Eu-doped CsSrBrI2 and CsSrClBr2 scintillators. The Eu-doped CsCaBrI2 scintillator has a higher effective atomic number than the Eu-doped CsSrBrI2 and CsSrClBr2 scintillators at 100 keV. But at the photon energy range from 101 to 1,500 keV, the results showed that the Eu-doped CsSrBrI2 scintillator has a higher effective atomic number than the Eu-doped CsCaBrI2 and CsSrClBr2 scintillators. The Eu-doped CsSrClBr2 scintillator has a higher effective electron density than the Eu-doped CsCaBrI2 and CsSrBrI2 scintillators at this photon energy range.
References
Bizarri, G., Bourret-Courchesne, E.D., Yan, Z., and Derenzo, S.E. (2011). Scintillation and optical properties of BaBrI: Eu2+ and CsBa2I5:Eu2+. IEEE T. Nucl. Sci., 58:3,403-3,410.
Bourret-Courchesne, E.D., Bizarri, G., Hanrahan, S.M., Gundiah, G., Yan, Z., and Derenzo, S.E. (2010). BaBrI:Eu2+, a new bright scintillator. Nucl. Instrum. Meth. A, 613:95-97.
Chanthima, N. and Kaewkhao, J. (2013). Investigation on radiation shielding parameters of bismuth borosilicate glass from 1 keV to 100 GeV. Ann. Nucl. Energy, 55:23-28.
Chanthima, N., Kaewkhao, J., Limkitjaroenporn, P., Tuscharoen, S., Kothan, S., Tungjai, M., Kaewjaeng, S., Sarachai, S., and Limsuwan, P. (2017). Development of BaO-ZnO-B2O3 glasses as a radiation shielding material. Radiat. Phys. Chem., 137:72-77.
Derenzo, S.E., Weber, M.J., Bourret-Courchesne, E., and Klintenberg, M.K. (2003). The quest for the ideal inorganic scintillator. Nucl. Instrum. Meth. A, 505:111-117.
Dong, M.G., Sayyed, M.I., Lakshminarayana, G., Çelikbilek-Ersundu, M., Ersundu, A.E., Nayar, P., and Mahdi, M.A. (2017). Investigation of gamma radiation shielding properties of lithium zinc bismuth borate glasses using XCOM program and MCNP5 code. J. Non-Cryst. Solids, 468:12-16.
Gundiah, G., Bizarri, G., Hanrahan, S.M., Weber, M.J., Bourret-Courchesne, E.D., and Derenzo, S.E. (2011). Structure and scintillation of Eu2+-activated solid solutions in the BaBr2–BaI2 system. Nucl. Instrum. Meth. A, 652:234-237.
Stand, L., Zhuravleva, M., Chakoumakos, B., Wei, H., Johnson, J., Martin, V., Loyd, M., Rutstrom, D., McAlexander, W., Wu, Y., Koschan, M., and Melcher, C.L. (2019). Characterization of mixed halide scintillators: CsSrBrI2:Eu, CsCaBrI2:Eu and CsSrClBr2:Eu. J. Lumin., 207:70-77.
Swiderski, L., Moszynski, M., Nassalski, A., Syntfeld-Kazuch, A., Czarnacki, W., Klamra, W., and Kozlov V.A. (2008). Scintillation properties of undoped CsI and CsI Doped with CsBr. IEEE T. Nucl., Sci. 55:1,241-1,245.
