Mu2e晶体量热计读出电子学:设计和表征

Q3 Physics and Astronomy
N. Atanov, V. Baranov, L. Borrel, C. Bloise, J. Budagov, S. Ceravolo, F. Cervelli, F. Colao, M. Cordelli, G. Corradi, Y. Davydov, S. Di Falco, E. Diociaiuti, S. Donati, B. Echenard, C. Ferrari, A. Gioiosa, S. Giovannella, V. Giusti, V. Glagolev, F. Grancagnolo, D. Hampai, F. Happacher, D. Hitlin, M. Martini, S. Middleton, S. Miscetti, L. Morescalchi, D. Paesani, D. Pasciuto, E. Pedreschi, F. Porter, F. Raffaelli, A. Saputi, I. Sarra, F. Spinella, A. Taffara, A. Zanetti, R. Zhu
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引用次数: 2

摘要

费米国家加速器实验室的Mu2e实验将在Al核的库仑场中寻找负介子到电子的带电轻子的无中微子转换。转换电子单能104.967 MeV特征将通过高分辨率跟踪器和电磁量热计的互补测量来识别,将目前的单事件灵敏度提高4个数量级。该量热计由1348个纯CsI晶体组成,排列在两个环形圆盘上,具有高粒度,10%的能量分辨率和500 ps的定时分辨率,可用于100 MeV的电子。该读出器基于大面积uv扩展sipm,具有完全定制的读出链,从模拟前端电子器件到数字化板。该读出电路设计在真空和磁场条件下均能正常工作。广泛的辐射硬度认证活动认证了FEE设计的剂量高达100克拉和1012 n1MeVeq/cm2以及单事件效应。在一个大型量热计样机上,用宇宙射线对最终读出链进行了最后的垂直切片测试。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mu2e Crystal Calorimeter Readout Electronics: Design and Characterisation
The Mu2e experiment at Fermi National Accelerator Laboratory will search for the charged-lepton flavour-violating neutrinoless conversion of negative muons into electrons in the Coulomb field of an Al nucleus. The conversion electron with a monoenergetic 104.967 MeV signature will be identified by a complementary measurement carried out by a high-resolution tracker and an electromagnetic calorimeter, improving by four orders of magnitude the current single-event sensitivity. The calorimeter—composed of 1348 pure CsI crystals arranged in two annular disks—has a high granularity, 10% energy resolution and 500 ps timing resolution for 100 MeV electrons. The readout, based on large-area UV-extended SiPMs, features a fully custom readout chain, from the analogue front-end electronics to the digitisation boards. The readout electronics design was validated for operation in vacuum and under magnetic fields. An extensive radiation hardness certification campaign certified the FEE design for doses up to 100 krad and 1012 n1MeVeq/cm2 and for single-event effects. A final vertical slice test on the final readout chain was carried out with cosmic rays on a large-scale calorimeter prototype.
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来源期刊
Instruments
Instruments Physics and Astronomy-Instrumentation
CiteScore
2.60
自引率
0.00%
发文量
70
审稿时长
11 weeks
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