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Advances in Materials Science and Engineering
Volume 2014, Article ID 345831, 5 pages
Research Article

Performance Analysis of γ-Radiation Test Monitor Using Monocrystalline n+pp++ Silicon Solar Cell: CsI(Tl) Scintillator

1Physics Department, Faculty of Science, Northern Border University, Arar 1321, Saudi Arabia
2Physics Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
3Physics Department, Faculty of Science, Ain Shams University, Cairo 11782, Egypt

Received 19 October 2014; Accepted 24 November 2014; Published 15 December 2014

Academic Editor: Tao Zhang

Copyright © 2014 Ali Abd El-Salam Ibrahim and Mostafa Abd El-Fattah El-Aasser. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The silicon solar cells are largely insensitive to gamma-radiation because the radiation passes through solar cells without imparting all of its energy. In order to enhance the sensitivity to radiation, the solar cells are coupled to CsI(Tl) scintillator. With the help of n+pp++ PESC monocrystalline silicon solar cells and CsI(Tl) scintillators, a gamma-radiation test monitor (TM) is developed. Due to safety concerns, a convenience relatively intense 60Co gamma-source is used as a suitable substitute for spent fuel. Two designs made of two representative arrays of monocrystalline solar cells are suggested. The induced current and voltage generated by these solar cells are measured. The temperature dependence of the induced current and the angular characteristic of the TM, for both designs, are presented. In comparison to conventional gamma-ray sensors, the Si solar cells exhibited better performance than the conventional types. Design II is found to be more efficient than I and superior performance for all of the measured parameters is obtained.