Characterization of a silicate glass as a high dose dosimeter

被引：20

作者：

Farah, K. ^{[1
]}

Mejri, A. ^{[1
]}

Hosni, F. ^{[1
]}

Ben Ouada, H. ^{[2
]}

Fuochi, P. G. ^{[3
]}

Lavalle, M. ^{[3
]}

Kovacs, A. ^{[4
]}

机构：

[1] Ctr Natl Sci & Technol Nucl, Lab Radiotraitement, Sidi Thabet 2020, Tunisia

[2] Fac Sci Monastir, Lab Phys & Chim Interfaces, Monastir 5000, Tunisia

[3] ISOF CNR, I-40129 Bologna, Italy

[4] HAS, Inst Isotopes, H-1525 Budapest, Hungary

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2010年 / 614卷 / 01期

关键词：

Silicate glass; Gamma rays; Electron beam; Optical absorption; Dosimeter; In-plant calibration; ELECTRON-SPIN-RESONANCE; TRAPPED HOLE-CENTERS; X-RAY-IRRADIATION; OPTICAL-ABSORPTION; GAMMA; ACTIVATION; CREATION; ESR;

D O I：

10.1016/j.nima.2009.12.014

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Commercial silicate glass has been investigated as a possible high dose dosimeter using an UV-vis spectro photometer. Glass samples were irradiated by Co-60 gamma rays and the results compared with those obtained with 3.4 and 8.4 MeV electron beams. The irradiated samples showed rapid fading at room temperature immediately after irradiation. In order to improve the stability of absorbance, glass samples were submitted to post-irradiation thermal treatments (150 degrees C for 20 min). The influences of the dose, type and energy of the ionizing radiation on the fading characteristics and on the response of the irradiated and thermally treated glasses were studied. Dependence of the glass response on the temperature during gamma irradiation in the range -3 to 80 degrees C is reported. The reproducibility to reuse glass dosimeter by thermal bleaching the radiation induced colour centres at 300 degrees C for 30 min was also investigated. Calibration curves in the range 0.1-17 kGy were obtained by using in-plant calibration techniques against transfer standard alanine dosimeters in the Tunisian semi-industrial gamma irradiation facility. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：137 / 144

页数：8

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