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arXiv 0709.4514physics.ins-det
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一种改进的Shashlyk量热计

An Improved Shashlyk Calorimeter

G. S. Atoian, G. I. Britvich, S. K. Chernichenko, S. Dhawan, V. V. Issakov, O. V. Karavichev, T. L. Karavicheva, V. N. Marin, A. A. Poblaguev, I. V. Shein, A. P… 展开作者

G. S. Atoian, G. I. Britvich, S. K. Chernichenko, S. Dhawan, V. V. Issakov, O. V. Karavichev, T. L. Karavicheva, V. N. Marin, A. A. Poblaguev, I. V. Shein, A. P. Soldatov, M. E. Zeller

摘要:

研制了一种能量分辨率为3%/sqrt{E(GeV)}、能量为50-1000 MeV的Shashlyk电磁量能器模块,并对样机进行了测试。这些改进的模块的细节,包括机械结构,波移光纤和光电探测器的选择,和一个新的闪烁体的开发具有改进的光学和机械性能的描述。模块在大型量热计中的性能如何由原型测量确定。实验确定的量能器原型的特性表明能量分辨率为σ_E/E=(1.96+-0.1)% \oplus(2.74+-0.05)%/sqrt{E},时间分辨率为σ_T =(72+-4)/sqrt{E} \oplus(14+-2)/E(ps),其中光子能量E以GeV单位给出,而\oplus表示二次求和。光子检测的穿通效率被测量为ε= 5*10^{-5}(Θ>5 mrad)。

英文摘要:

Shashlyk electromagnetic calorimeter modules with an energy resolution of about 3%/sqrt{E (GeV)} for 50-1000 MeV photons has been developed, and a prototype tested. Details of these improved modules, including mechanical construction, selection of wave shifting fibers and photo-detectors, and development of a new scintillator with improved optical and mechanical properties are described. How the modules will perform in a large calorimeter was determined from prototype measurements. The experimentally determined characteristics of the calorimeter prototype show energy resolution of sigma_E/E=(1.96+-0.1)% \oplus (2.74+-0.05)%/sqrt{E}, time resolution of sigma_T = (72+-4)/sqrt{E} \oplus (14+-2)/E (ps), where photon energy E is given in GeV units and \oplus means a quadratic summation. A punch-through inefficiency of photon detection was measured to be ε= 5*10^{-5} (Θ>5 mrad).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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