تقرير
A CsI hodoscope on CSHINE for Bremsstrahlung {\gamma}-rays in Heavy Ion Reactions
| العنوان: | A CsI hodoscope on CSHINE for Bremsstrahlung {\gamma}-rays in Heavy Ion Reactions |
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| المؤلفون: | Qin, Yuhao, Guo, Dong, Xiao, Sheng, Wang, Yijie, Guan, Fenhai, Diao, Xinyue, Qin, Zhi, Si, Dawei, Zhang, Boyuan, Zhang, Yaopeng, Wei, Xianglun, Yang, Herun, Ma, Peng, Zou, Haichuan, Qiu, Tianli, Huang, Xinjie, Hu, Rongjiang, Duan, Limin, Duan, Fangfang, Hu, Qiang, Ma, Junbing, Xu, Shiwei, Bai, Zhen, Yang, Yanyun, Xiao, Zhigang |
| سنة النشر: | 2022 |
| المجموعة: | High Energy Physics - Experiment Nuclear Experiment Physics (Other) |
| مصطلحات موضوعية: | Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment |
| الوصف: | Bremsstrahlung $\gamma$ production in heavy ion reactions at Fermi energies carries important physical information including the nuclear symmetry energy at supra-saturation densities. In order to detect the high energy Bremsstrahlung $\gamma$ rays, a hodoscope consisting of 15 CsI(Tl) crystal read out by photo multiplier tubes has been built, tested and operated in experiment. The resolution, efficiency and linear response of the units to $\gamma$ rays have been studied using radioactive source and $({\rm p},\gamma)$ reactions. The inherent energy resolution of $1.6\%+2\%/E_{\gamma}^{1/2}$ is obtained. Reconstruction method has been established through Geant 4 simulations, reproducing the experimental results where comparison can be made. Using the reconstruction method developed, the whole efficiency of the hodoscope is about $2.6\times 10^{-4}$ against the $4\pi$ emissions at the target position, exhibiting insignificant dependence on the energy of incident $\gamma$ rays above 20 MeV. The hodoscope is operated in the experiment of $^{86}$Kr + $^{124}$Sn at 25 MeV/u, and a full $\gamma$ energy spectrum up to 80 MeV has been obtained. Comment: 9 pages, 19 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.nima.2023.168330 |
| الوصول الحر: | http://arxiv.org/abs/2212.13498Test |
| رقم الانضمام: | edsarx.2212.13498 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.nima.2023.168330 |
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