3 years ago

A New Model of the Light Transmission in a Scintillator.

Jiangshan Lan, Meng Ding, Chengdong Han, Yapeng Zhang, Xurong Chen

Transmitted light shows as general behaviour an exponential attenuation trend in the medium. But the simple exponential decay model can not describe the light attenuation phenomenon as the hit position approaches the opposite end of the scintillator in a strip (parallel plate) scintillator. According to the structure of a scintillator and the production and propagation of fluorescent light in the scintillator in this paper, we propose a new model: $f(x)=I_0\eta_{a}(x)e^{-x/\lambda}+I_0\eta_{b}(x)e^{-(2L-x)/\lambda }$. The model describing the light attenuation phenomenon in the scintillator to a great extent, reducing the maximal deviation between the samples and fitting function from about 29% to less than 2%. Therefore, our model can accurately extract hit position and deposited energy. And this model may save much cost at designing detectors in the future.

Publisher URL: http://arxiv.org/abs/1710.11291

DOI: arXiv:1710.11291v1

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