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arXiv physics/0008003physics.ins-det
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两个大面积阳极垫MICROMEGAS室作为预簇射探测器的基本元件

Two large-area anode-pad MICROMEGAS chambers as the basic elements of a pre-shower detector

L. Aphecetche, H. Delagrange, D. G. d'Enterria, M. Le Guay, X. Li, G. Martínez, M. J. Mora, P. Pichot, D. Roy, Y. Schutz

摘要:

介绍了一种基于MICROMEGAS(MICRO MEsh Gaseous Structure)技术的探测器的设计。我们的探测器的特点是具有398(\times)281 mm(^{2})的大有效面积,具有20(\times)22 mm(^{2})分段的焊盘读出,以及通过绝缘间隔物(100(μ)m高和200(μ)m直径)获得的均匀放大间隙。几个原型的性能进行了评估下照射的2 GeV/c动量带电π介子和电子的次级束。我们认为这样的探测器作为基本元件的预簇射探测器装备的光子谱仪(PHOS)的ALICE实验。它的优点是模块化、材料少、坚固耐用和成本低。

英文摘要:

The design of a detector based on MICROMEGAS (MICRO MEsh GAseous Structure) technology is presented. Our detector is characterized by a large active area of 398(\times)281 mm(^{2}), a pad read-out with 20(\times)22 mm(^{2}) segmentation, and an uniform amplification gap obtained by insulating spacers (100 (μ)m high and 200 (μ)m in diameter). The performances of several prototypes have been evaluated under irradiation with secondary beams of 2 GeV/c momentum charged pions and electrons. We consider such a detector as the basic element for a pre-shower detector to equip the PHOton Spectrometer (PHOS) of the ALICE experiment. Its assets are modularity, small amount of material, robustness and low cost.

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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