Pagonis V, Mian S M, Kitis G
Physics Department, Western Maryland College, Westminster, MD 21158, USA.
Radiat Prot Dosimetry. 2001;93(1):11-7. doi: 10.1093/oxfordjournals.rpd.a006406.
A new thermoluminescence glow curve deconvolution (GCD) function is introduced which accurately describes first order thermoluminescence (TL) curves. The new GCD function is found to be accurate for first order TL peaks with a wide variety of the values of the TL kinetic parameters E and s. The 3-parameter Weibull probability function is used with the function variables being the maximum peak intensity (Im), the temperature of the maximum peak intensity (Tm) and the Weibull width parameter b. An analytical expression is derived from which the activation energy E can be calculated as a function of Tm and the Weibull width parameter b. The accuracy of the Weibull fit was tested using the ten reference glow curves of the GLOCANIN intercomparison program and the Weibull distribution was found to be highly effective in describing both single and complex TL glow curves. The goodness of fit of the Weibull function is described by the Figure of Merit (FOM) which is found to be of comparable accuracy to the best FOM values of the GLOCANIN program. The FOM values are also comparable to the FOM values obtained using the recently published GCD functions of Kitis et al. It is found that the TL kinetic analysis of complex first-order TL glow curves can be performed with high accuracy and speed by using commercially available software packages.
引入了一种新的热释光发光曲线反卷积（GCD）函数，该函数能准确描述一级热释光（TL）曲线。发现新的GCD函数对于具有各种热释光动力学参数E和s值的一级TL峰是准确的。使用三参数威布尔概率函数，函数变量为最大峰强度（Im）、最大峰强度温度（Tm）和威布尔宽度参数b。推导了一个解析表达式，据此可以计算出作为Tm和威布尔宽度参数b的函数的活化能E。使用GLOCANIN比对程序的十条参考发光曲线测试了威布尔拟合的准确性，发现威布尔分布在描述单峰和复杂TL发光曲线方面都非常有效。威布尔函数的拟合优度由品质因数（FOM）描述，发现其准确性与GLOCANIN程序的最佳FOM值相当。FOM值也与使用Kitis等人最近发表的GCD函数获得的FOM值相当。结果发现，通过使用市售软件包，可以高精度、快速地对复杂的一级TL发光曲线进行热释光动力学分析。
