Development of resistive micromegas TPCS for the T2K experiment
Development of resistive micromegas TPCS for the T2K experiment
复制标题
为 T2K 实验开发电阻式微兆级 TPCS
DOI：
10.1016/j.nima.2019.162798
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发表时间：
2020
影响因子：
1.4
通讯作者：
A. Delbart
中科院分区：
文献类型：
--
作者：
A. Delbart
长基线中微子实验T2K启动了其近距离探测器ND280的升级工程，这对于将系统不确定度降低到4%以下至关重要。此次升级的一个重要组成部分包括两个新的高角度tpc (ha - tpc)，用于3D轨道重建、动量测量和粒子识别。这些tpc将配备32个电阻体微气体模块。电场笼将由层压复合板实现，层压复合板上覆盖有用于电场成形的铜带卡普顿箔。34x42cm2的微气体将使用~ 0.5 m Ω/平方的类金刚石（DLC）箔将电荷分散在衬垫平面上，每个衬垫为~ 1cm2。2018年夏天，我们用CERN/PS光束在Harp TPC笼上测试了一个电阻体-微气体原型，在空间点分辨率和dE/dx分辨率方面都取得了优异的成绩。我们报道了ha - tpc的设计和0.8 GeV/c粒子的原型性能的初步结果。
The long baseline neutrino experiment T2K has launched the upgrade project of its near detector ND280, crucial to reduce the systematic uncertainty to less than 4%. An essential component of this upgrade consists of two new High-Angle TPCs (HA-TPCs), for 3D track reconstruction, momentum measurement and particle identification. These TPCs will be equipped with 32 resistive bulk-micromegas modules. The field cage will be realized with laminated composite panels covered with a kapton foil with copper strips for electric field shaping. The 34x42 c m 2 micromegas will use a∼ 0.5 M Ω/square Diamond-Like Carbon (DLC) foil to spread the charge over the pad plane, each pad being∼ 1 c m 2. In summer 2018, we have tested a resistive bulk-micromegas prototype on the Harp TPC cage with the CERN/PS beam with excellent results both for the space point resolution and for dE/dx resolution. We report on the design of the HA-TPCs and the preliminary results of the prototype performances with 0.8 GeV/c particles.
DOI：
10.1016/j.nima.2011.02.036
发表时间：
2011-05-01
影响因子：
1.4
作者：
Abgrall, N.;Andrieu, B.;Zito, M.
通讯作者：
Zito, M.