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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(07) [July 2012] >
| Title: | Device for mechanoluminescence excitation by applying gradually varying pressure on the sample |
| Authors: | Rai, R K
Kher, R S
S A, Khan
Dhoble, S J
Upadhyay, A K |
| Keywords: | Mechanoluminescence
Barium aluminate
Phosphor |
| Issue Date: | Jul-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A low cost set-up
has been designed and developed for producing mechanoluminescence (ML) by
continuously varying pressure on the sample. The ML of γ-irradiated BaAl2O4:Eu
phosphor has been studied. ML is excited impulsively by dropping a load through
guiding cylinder and by applying continuously varying pressure on the sample.
When BaAl2O4:Eu phosphor is deformed impulsively, a
single peak with shoulder is observed in the time versus ML intensity curve,
while number of peak is observed when continuously increasing pressure applied
on to the sample. When pressure is continuously decreased less number of peaks
is observed as compared to that of increasing pressure. The enhancement in ML
intensity with γ-irradiation suggests
that BaAl2O4:Eu is a suitable candidate for ML dosimetry.
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| Page(s): | 534-537 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(07) [July 2012]
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