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首页> 外文期刊>Nuclear instruments and methods in physics research >Annealing of fission fragment tracks in CR-39 nuclear track detector - Phenomenological model
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Annealing of fission fragment tracks in CR-39 nuclear track detector - Phenomenological model

机译：CR-39核径迹探测器中裂变碎片径迹的退火-现象学模型

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摘要

In this short paper, a new model for annealing of latent nuclear tracks is developed. Physical phenomenological picture or foundation of the model is presented using experimental spectra of Cf-252 fission fragment tracks annealed at 75-175 degrees C for 5-30 min. Here, annealing of nuclear tracks refers to the reduction of track lengths during annealing or thermal treatment. A new annealing parameter (t/T-2) is identified in the model, which is useful in understanding and analysis of annealing of nuclear tracks. In definition of the annealing parameter above, the quantities t and T are annealing time and temperature, respectively. The model allows deduction of the activation energy of annealing simultaneously from track annealing data, collected over all the annealing conditions (t, T). This model provides a quick methodology to study kinetics of nuclear track annealing. The presented model is validated using the experimental results of annealing of fission tracks in CR-39 detector. The determined value of activation energy of annealing is 0.204 +/- 0.012 eV. Presented results and discussion can be extended to swift heavy ion (SHI) tracks.
机译：在这篇短文中，开发了一种用于潜在核轨道退火的新模型。使用在75-175摄氏度下退火5-30分钟的Cf-252裂变碎片轨道的实验光谱，展示了模型的物理现象学图片或基础。在此，核径迹的退火是指在退火或热处理期间径迹长度的减小。在模型中确定了新的退火参数（t / T-2），这对理解和分析核径迹的退火非常有用。在上述退火参数的定义中，量t和T分别是退火时间和温度。该模型允许从在所有退火条件（t，T）上收集的跟踪退火数据中同时推断退火的活化能。该模型提供了研究核径迹退火动力学的快速方法。利用CR-39探测器裂变径迹退火的实验结果验证了该模型的有效性。退火的活化能的确定值为0.204 +/- 0.012eV。提出的结果和讨论可以扩展到快速重离子（SHI）轨道。

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