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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research >Front-end electronics of the ALICE photon spectrometer
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Front-end electronics of the ALICE photon spectrometer

机译：ALICE光子光谱仪的前端电子设备

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摘要

The photon spectrometer (PHOS) in the ALICE experiment at LHC is dedicated to measuring photons, π~0's and η's in a broad p_T range from about 100MeV/c to 100GeV/c, providing the best possible energy and position resolution in order to narrow the π~0 and η mass peaks and thus to increase the signal to background ratio. The front-end electronics (FEE) of the PHOS is thus required to cover a large dynamic range, to have a timing resolution better than ~2 ns in order to discriminate against l-2 GeV/c (anti-)neutrons, and to provide high p_T trigger to select rare high p_T events. In addition, to equalize the gains of individual detector channels, it is desired that the PHOS FEE can regulate the bias voltage of APD. In this paper, we will present the performance and status of the 32-channel low noise front-end electronics for the PHOS with a dynamic range of 14 bits. Measurements with LED pulse at laboratory and results from beam test with the first PHOS module at T10 of the CERN PS show that its performance fulfills the PHOS requirements.%Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China,Key Laboratory of Quark & Lepton Physics, Huazhong Normal University, Ministry of Education, China;CERN, PH Department, 1211 Geneva 23, Switzerland;CERN, PH Department, 1211 Geneva 23, Switzerland;Department of Physics and Technology, University of Bergen, Norway;Russian Research Center Kurchatov Institute, Moscow, Russian Federation;Department of Physics, University of Oslo, Blindem 0316, Norway;Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China,Key Laboratory of Quark & Lepton Physics, Huazhong Normal University, Ministry of Education, China;Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China,Key Laboratory of Quark & Lepton Physics, Huazhong Normal University, Ministry of Education, China;Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China,Key Laboratory of Quark & Lepton Physics, Huazhong Normal University, Ministry of Education, China;
机译：LHC的ALICE实验中的光子光谱仪（PHOS）专门用于在大约100MeV / c至100GeV / c的宽p_T范围内测量光子，π〜0和η，提供最佳的能量和位置分辨率以缩小π〜0和η质量达到峰值，从而增加了信噪比。因此，PHOS的前端电子设备（FEE）必须覆盖较大的动态范围，并具有优于〜2 ns的定时分辨率，以便区分1-2 GeV / c（反）中子，并区分提供高p_T触发器以选择罕见的高p_T事件。另外，为了使各个检测器通道的增益相等，希望PHOS FEE可以调节APD的偏置电压。在本文中，我们将介绍PHOS具有32位动态范围的32通道低噪声前端电子设备的性能和状态。华中师范学院粒子物理研究所，武汉430079，Quark重点实验室，实验室用LED脉冲进行的测量以及在CERN PS T10的第一个PHOS模块在第一个PHOS模块进行的光束测试的结果表明，其性能符合PHOS要求。中国教育部华中师范大学物理与轻子物理;欧洲核子研究中心物理系，瑞士日内瓦2311;欧洲核子研究中心物理系，瑞士1211日内瓦23;挪威卑尔根大学物理与技术系;挪威研究俄罗斯联邦莫斯科库尔恰托夫中心研究所；奥斯陆大学物理系，挪威盲目的0316；华中师范大学粒子物理研究所，武汉430079，华中师范大学夸克与轻子物理重点实验室华中师范大学教育学院；华中师范大学粒子物理研究所，武汉430079，教育部华中师范大学夸克与轻子物理重点实验室华中师范大学粒子物理研究所，武汉430079，华中师范大学夸克与轻子物理学重点实验室，中国；

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  • 作者

    Zhongbao Yin; Hans Muller; Rui Pimenta; Dieter Roehrich; Iouri Sibiriak; Bernhard Skaali; Dong Wang; Yaping Wang; Daicui Zhou;

  • 作者单位

    Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China,Key Laboratory of Quark & Lepton Physics, Huazhong Normal University, Ministry of Education, China;

    CERN, PH Department, 1211 Geneva 23, Switzerland;

    CERN, PH Department, 1211 Geneva 23, Switzerland;

    Department of Physics and Technology, University of Bergen, Norway;

    Russian Research Center Kurchatov Institute, Moscow, Russian Federation;

    Department of Physics, University of Oslo, Blindem 0316, Norway;

    Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China,Key Laboratory of Quark & Lepton Physics, Huazhong Normal University, Ministry of Education, China;

    Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China,Key Laboratory of Quark & Lepton Physics, Huazhong Normal University, Ministry of Education, China;

    Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China,Key Laboratory of Quark & Lepton Physics, Huazhong Normal University, Ministry of Education, China;

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  • 正文语种 eng
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  • 关键词

    front-end electronics; photon spectrometer; dynamic range; energy resolution; timing resolution;

    机译：前端电子产品;光子光谱仪动态范围;能量分辨率定时分辨率;

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