Impact of firing on the OSL luminescence properties of natural quartz: A case study

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• 作者：D.K. Koul^a ; ^{dkkoul@barc.gov.in" class="auth_mail" title="E-mail the corresponding author} ; G.S. Polymeris^b ; A. Soni^a ; M.S. Kulkarni^a
• 关键词：Quartz ; TL ; OSL ; Firing
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2016
• 出版时间：1 March 2016
• 年：2016
• 卷：370
• 期：Complete
• 页码：86-93
• 全文大小：742 K

文摘

A comprehensive study was carried out to observe the impact of firing on the behavior of different features of the optically stimulated luminescence (OSL) signal of geological quartz. The different features which could influence its use in different applications were studied. A comparison of nature of (i) thermoluminescence (TL) glow curves, (ii) OSL decay curves, (iii) pulse annealing curves, (iv) fast and slow components and (v) thermally transferred OSL (TT-OSL) emission of unfired and fired samples suggested a profound influence of thermal firing on the OSL signal. The composition of the OSL signal was seen to get altered by firing treatment; the magnitude of slow component losing its dominance to the fast component. This was true of pulse annealing also, the fired curve looked different from the unfired one. TT-OSL was observed to be larger in unfired sample as compared to the fired sample. Finally, firing was seen to enable reliable dose recovery using single aliquot regenerative (SAR) method, which has not been the case with the unfired sample studied here.