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Title: Thermoluminescence dosimetric study of X-ray irradiated BAM:Eu
Authors: Murthy, K V R
Prasad, A S Sai
Rao, B Subba
Rey, Louis
Keywords: Thermoluminescence (TL)
Photoluminescence (PL)
Issue Date: Jun-2009
Publisher: CSIR
Abstract: Thermoluminescence of 0.5Gy X-ray irradiated BAM:Eu has been studied. The irradiated phosphor has been studied for its TL properties after one week of irradiation and after 100 weeks of storage. The TL of BAM recoded after one week of irradiation and after 100 weeks of storage. Before storage for 100 weeks the TL of 0.5Gy X-ray irradiated phosphor displays a broad TL with a hump around 180oC followed by a peak at 273°C. After storage for 100 weeks the TL pattern entirely changed, i.e., the mixed peak emerged as two well resolved and high intensity peaks at 215 and 300oC. Normally after storage to 100 weeks, the peak at 190oC reduces its intensity or disappears in most cases, instead of that the peak appears at 215°C is a well resolved and the intensity is almost to the intensity of 300oC peak. Since the TL phenomenon observed is interesting. The two well resolved, isolated, high intensity peaks observed after 100 weeks of storage approves this BAM:Eu can be used as TL dosimetric material. The photoluminescence (PL) of BAM:Eu excited with 254 nm given an emission peak at 450 nm.
Page(s): 169-171
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Source:IJEMS Vol.16(3) [June 2009]

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