[1] T. Jing, C. Goodman, J. Drewery, G. Cho, W. Hong, H. Lee, S. Kaplan, A. Mireshghi, V. Perez-Mendez and D. Wildermuth. Amorphous silicon pixel layers with cesium iodide converters for medical radiography, IEEE Trans. Nucl. Sci. 41 (1994) 903–909. [2] N. Martin. Scintillation detectors for x-rays, Meas. Sci. Technol. 17 (2006) 37–54. [3] A. Jhingan, P.Sugathan, GurpreetKaur, K. Kapoor, N.Saneesh, T. Banerjee, H. Singh, A. Kumar, B. Behera and B. Nayak. Front-end electronics for CsI based charged particle array for the study of reaction dynamics, Nuclear Instruments and Methods in Physics Research A 786 (2015) 51–58. [4] W. Carel and V. Eijk. Inorganic scintillators in medical imaging detector, Nuclear Instruments and Methods in Physics Research A 509 (2003) 17-25. [5] G.F. Knoll. Radiation Detection and Measurement, Third Edition, Wiley Inc., New York, (2000). [6] www.crystals.saint-gobain. com/sites/imdf.crystals.com /files/documents/Scintillation Arrays. sgc-array-assemblies.pdf. [7] C. Brecher, A. Lempicki, S.R. Miller, J. Glodo, E.E. Ovechkina, V. Gaysinskiy, V.V. Nagarkar and R.H. Bartram. Suppression of afterglow in CsI:Tl by codoping with Eu2+—I: Experimental, Nuclear Instruments and Methods in Physics Research A 558 (2006) 450–457. [8] E. Ovechkinaa, V. Gaysinskiya, S. Millera, C. Brecher, A. Lempickib and V. Nagarkara. Multiple doping of CsI:Tl crystals and its effect on afterglow, Radiation Measurements 42 (2007) 541–544. [9] J. Glodo, Y. Wang, R. Shawgo, C. Brecher, H. Hawrami, J. Tower and S. Shah. New Developments in Scintillators for Security Applications. Physics Procedia 90 (2017) 285–290. [10] L.A. Kappers, R.H. Bartram, D.S. Hamilton, A. Lempicki, C. Brecher, V.Gaysinskiy, E.E. Ovechkina, S. Thacker and V.V. Nagarkar. A tunneling model for afterglow suppression in CsI:Tl, Sm scintillation materials , Radiation Measurements 45 (2010) 426–428. [11] D. Totsuka, T. Yanagida, Y. Fujimoto, Y. Yokota, F. Moretti, A. Vedda and A. Yoshikawa. Afterglow Suppression by Codoping with Bi in CsI:Tl Crystal Scintillator, Applied Physics Express 5 (2012) 052601–052603. [12] Y. Wu, G. Ren, M. Nikl, X. Chen, D. Ding, S. Pana and F. Yang. CsI:Tl+,Yb2+: ultra-high light yield scintillator with reduced afterglow, 3312, Cryst Eng. Comm 16 (2014) 3312–3317. [13] Y. Wu, G. Ren, F. Meng, .X. Chen, D. Ding, H. Li, S. Pan and L. Melcher. Scintillation Characteristics of Indium Doped Cesium Iodide Single Crystal, IEEE TRANSACTIONS ON NUCLEAR SCIENCE 62 (2015) 571–576. [14] S. Singh, D. Desai, A. Singh, M.Tyagi, A. Sinha, S. Gadkari and S. Gupta. Growth of CsI:Tl crystals in carbon coated silica crucibles by the gradient freeze technique . Journal of Crystal Growth 351 (2012) 88–92. [15] A. Yoshikawa, Y. Yokota, Y. Shoji, R. Kral, K. Kamada, S. Kurosawa, Y. Ohashi, M. Arakawa, I. Chani, V. Kochurikhin, A. Yamaji, M. Andrey and M. Nikl. Development and melt growth of novel scintillating halide crystals. Optical Materials 74 (2017) 109–119. [16] http://www.amcrys.com/pdf/4281.pdf. [17] Y. Wu, G. Ren, M. Nikl, X. Chen, D. Ding, S. Pan and F. Yang. Ultralow-concentration Sm codoping in CsI:Tl scintillator: A case of little things can make a big difference, Optical Materials 38 (2014) 297–300. [18] http://www.photonis.com.