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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.49 [2011] >
IJPAP Vol.49(05) [May 2011] >
| Title: | Applications of PeakFit software in thermoluminescence studies |
| Authors: | Singh, Th Basanta
Rey, L
Gartia, R K |
| Keywords: | Thermoluminescence
PeakFit software
Activation energy
Dosimetry
Dating |
| Issue Date: | May-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Some applications of
the commercial software “PeakFit v.4.12” in thermoluminescence (TL) studies
have been reported. The “PeakFit” is a simple but convenient, powerful tool in
extracting the two most important intrinsic trapping parameters namely, the
activation energy (E) and frequency factor (s) of TL peaks of
complex glow curves, has been demonstrated. This is shown by considering the
glow curves of NaCl recorded with various heating rates. The fourth derivative
plots of a set of twelve glow curves of D2O ice excited with a dose
7.6 kGy (e-beam 2.2 MeV) and recorded with linear heating rate of 0.05Ks-1
show clearly the existence of as many as eleven TL peaks in the range 77-250 K.
These peaks are located at 102.2±1.8, 117.3±1.0, 127.0±1.3, 134.7±1.2, 144.4±1.5,
153.1±1.3, 164.4±1.1, 173.3±1.2, 182.3±1.5, 193.8±1.8 and 201.0±1.6 K,
respectively which is in agreement with the recent finding on structure of glow
curves of H2O ice.We also demonstrate that the software is a
convenient tool not only to locate but also to integrate satellite peaks that
may be used for dosimetry/dating. Using this concept, the Dose Response Curves
(DRCs) of dosimetric TL peaks of BaSO4
have been constructed. |
| Page(s): | 297-302 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.49(05) [May 2011]
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