Gamma ray induced sensitization of 110°C TL peak in quartz separated from sand

被引：20

作者：

Benny, PG

Sanjeev, N

Rao, TKG

Bhatt, BC ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Radiol Phys & Advisory Div, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Isotope Div, Bombay 400085, Maharashtra, India

[3] Indian Inst Technol, RSIC, Bombay 400076, Maharashtra, India

来源：

RADIATION MEASUREMENTS | 2000年 / 32卷 / 03期

关键词：

D O I：

10.1016/S1350-4487(99)00268-1

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

We have investigated the gamma ray induced sensitization of the 110 degrees C TL peak in quartz, separated from sand, in the dose range 30-750 Gy. A pre-dose of 100 Gy followed by annealing at 500 degrees C for 1 h yielded an optimum sensitization factor of 14.2 for a test gamma dose of 0.5 Gy; this factor decreases slowly up to the studied pre-gamma dose of 750 Gy. From ESR studies carried out in the temperature range 25-550 degrees C, the formation of E'(1)-centres and their subsequent decay (at temperatures >400 degrees C) have been observed. The released charge carriers (electrons) may lead to elimination of competitors (as a result of their filling up). Thus, the radiation-induced sensitization of the 110 degrees C TL peak could be due to elimination of the competing deep traps. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：247 / 252

页数：6

共 21 条

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[2]

AKBER RA, 1988, NUCL TRACKS RAD MEAS, V14, P21

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