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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment >Performances of a resistive Micromegas module for the Time Projection Chambers of the T2K Near Detector upgrade
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Performances of a resistive Micromegas module for the Time Projection Chambers of the T2K Near Detector upgrade

机译:用于T2K近距离探测器升级时间投影室的Micromegas电阻模块的性能

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摘要

An upgrade of the Near Detector of the T2K long baseline neutrino oscillation experiment, ND280, has been proposed. This upgrade will include two new Time Projection Chambers, each equipped with 16 resistive Micromegas modules for gas amplification. A first prototype of resistive Micromegas has been designed, built, installed in the HARP field cage, and exposed to a beam of charged particles at CERN. The data have been used to characterize the performances of the resistive Micromegas module. A spatial resolution of 300 urn and a deposited energy resolution of 9% were observed for horizontal electrons crossing the TPCs at 30 cm from the anode. Such performances fully satisfy the requirements for the upgrade of the ND280 TPC.
机译:已提出对T2K长基线中微子振荡实验ND280的近探测器的升级。此次升级将包括两个新的时间投影腔,每个腔均配备16个用于气体放大的电阻式Micromegas模块。已经设计,建造,安装了电阻性Micromega的第一个原型,并将其安装在HARP现场笼中,并在CERN暴露于带电粒子束。数据已用于表征电阻式Micromegas模块的性能。对于在距阳极30 cm处穿过TPC的水平电子,观察到300微米的空间分辨率和9%的沉积能量分辨率。这些性能完全满足ND280 TPC升级的要求。

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