Document Type : Research Paper
Authors
Tikrit University / College of Education
Abstract
In this research , the effect of absorbed doses to Gamma rays on some optical Properties for
Cadimum Sulfide thin Film (CdS), that prepaired by chemical spry pyrolysis, was studied. This film
was exposed to Cs137Source with energy( 662)Kev and activity (370)KBq and radiation absorbed dose
(2, 4, 8, 16, 50, 250, 500) Gy and dose rate (222)Gy/min . The results shows that Gamma-rays have
effects on (energy gap, absorption coefficient, reflectivity and extinction coefficient).The value was 2.4
eV before radiation and was decreased to (2.38, 2.36, 2.32, 2.32, 2.29 and 2.18)eV after radiation and
exposed the film to different doses (2, 4, 8, 16, 50, 250 and 500) Gy respectively. Also the expose of
CdS films to radiation doses lead to change curve behavior of curves of optical constants (absorption
coefficient, reflectance and extinction coefficient) by increasing of these doses.
Keywords
- Shpotyuk, O.I., Amorphous Chalcogenide Semiconductors for Dosimetry of High-Energy Ionizing Radiation, Radiation Physics and Chemistry 46, 1279-1282,1995.
- Clough, R.L., 2001, High-energy radiation and polymers, Nuclear Instruments and Methods in Physics Res, Sec. B 185, 8-33.
- Zaykin, Yu. A.; Aliyev, B.A., 2002, Radiation effects in high-disperse metal media and their application in powder metallurgy, Radiation Physics and Chemistry, 227-230.
- Qingad, C.I, Huaying B.O. and Xinghai, S.I, 2008, Phase Transition of CdS in Presence of Ethylenediamine and formation of hollow CdS particles, p.591-601.
- منیب عادل خلیل، الفیزیاء النوویة،(1996)، دار الکتب للطباعة والنشر-الموصل، الفصل الثانی صـ122.
- اسیل صبحی الحسنی،2004، دراسة خواص اغشیة Cd&Te المحضرة بطریقة الرش الکیمیائی الحراری،، رسالة ماجستیر، الجامعة التکنولوجیا.
- محمد شیاع مرعی البیاتی، 2006، دراسة تأثیر السمک والتلدین على الخواص الترکیبیة والبصریة لاغشیة CdS، رسالة ماجستیر، جامعة تکریت.
- Rabab, R. Ahmd,2010,Sudy of the Effect of Irradiation on Structural and Electrical Properties of (Bi2Se3 – Si) (Bismuth Selenide – Silicon),M.Sc,Fahad King University.
- Khalil ,A.Arshak, 2002,Gamma Radiation Dosimetry Using TeO2 Thin Film Structures, Sensors,University of Limerick , Ireland.
10. Raymond ,N.R., 2000,Radiation Effects Aging and Image Formation, New York, Turt J Phy,651-559.
- 11. Keyst Drive, Warrendale, PA, 2007, Material Research Society; 15086-7573, USA.
12. انتصار هاتو هاشم، 1997، الخواص البصریة لاغشیةCdO الرقیقة، رسالة ماجستیر، الجامعة المستنصریة.
13. Gmbtt, L.D., (2006), Atomic and Nuclear Physics, Federal Republic , Germany.
14. G. Hass and R.E.Thun, 1966, physics of thin films, Academic press.
15. Nakadaet,T. al, (2003), Band offset of high efficiency CBD-ZnS/CIGS,Thin Solid Films, 242-248.
16. Arshak, K., Korostynska, O., 2002,Harris, Radiation dosimetry using screen printed Nickel oxide thin films, Thin Solid Films,222-225.
17. Tsoulfanidis ,N., 1983, Measurement and Detection of Radiation, HHemisphere Pubblishing, co-washington.
)
