Functional equation for the fading correction of imaging plates
Functional equation for the fading correction of imaging plates
复制标题
DOI：
10.1016/s0168-9002(00)00300-4
复制
发表时间：
2000-08-11
影响因子：
1.4
通讯作者：
Nakamura, T
中科院分区：
文献类型：
--
作者：
Ohuchi, H;Yamadera, A;Nakamura, T
通过实验研究了温度对商用成像板IP（BAS-UR）褪色的影响。用U-238 α射线源和Co-60 γ射线源辐照后，在0 ~ 60℃的受控温度下测量了其衰落特性。将阿伦尼乌斯方程应用于实验结果，我们计算了一个包含两个变量的泛函方程：经过时间(t)和温度(K)。用该方程计算的光激发发光（PSL）与我们在0 ~ 40℃范围内的实验结果吻合得很好，由此方程估计U-238 α射线和Co-60 γ射线源的衰落活化能约为0.9 eV。(C) 2000 Elsevier Science B.V.版权所有
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.