Functional equation for the fading correction of imaging plates

被引：37
作者：
Ohuchi, H
Yamadera, A [1 ]
Nakamura, T
机构：
[1] Tohoku Univ, Grad Sch Pharmaceut Sci, Aoba Ku, Sendai, Miyagi 9808578, Japan
[2] Tohoku Univ, Ctr Cyclotron & Radioisotope, Aoba Ku, Sendai, Miyagi 9808578, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 450卷 / 2-3期
关键词：
imaging plate; functional equation; fading correction; Arrhenius' equation; activation energy;
D O I：
10.1016/S0168-9002(00)00300-4
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Several experiments were performed to investigate the effects of temperature on the fading of the commercial imaging plate, IP(BAS-UR). The fading characteristics were measured under controlled temperatures between 0 degrees C and 60 degrees C after irradiation with U-238 alpha-ray and Co-60 gamma-ray sources. Applying Arrhenius' equation to the experimental results, we calculated a universal functional equation that includes two variables: elapsed time (t) and temperature (K). The photo-stimulated luminescence (PSL) calculated by this equation showed good agreement with the results of our experimental ones between 0 degrees C and 40 degrees C. From this equation, the activation energies of the fading are estimated to be about 0.9 eV for both U-238 alpha-ray and Co-60 gamma-ray sources. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：343 / 352
页数：10
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