Development and test of a DRS4-based DAQ system for the PADME experiment at the DAΦNE BTF
Development and test of a DRS4-based DAQ system for the PADME experiment at the DAΦNE BTF
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DOI：
10.1088/1742-6596/898/3/032024
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发表时间：
2017-11
期刊：
影响因子：
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通讯作者：
E. Leonardi;M. Raggi;P. Valente
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文献类型：
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作者：
E. Leonardi;M. Raggi;P. Valente
一种可能的暗物质模型假设，它只通过一种被称为暗光子或A‘的质量类似光子的矢量粒子与标准模型粒子相互作用。在弗拉斯卡蒂的DAΦNE束流测试设备上进行的PADME实验旨在通过测量末态丢失质量来探测由正电子产生的暗光子对衰变为暗物质(e+e-→γA‘)的固定目标的湮没。Padme实验的DAQ系统将处理总共921个通道，DAQ速率为50赫兹。所有通道将使用CAEN V1742板获取，CAEN V1742板是基于DRS4芯片的32通道5GS/S数字化仪。BTF在2015年和2016年的测试中成功使用了两块这样的电路板，在那里建立了一个完整的DAQ系统，该系统的原型将用于最终实验。在本文中，我们将报告DAQ系统的详细信息，并特别参考我们使用V1742板的经验。
A possible Dark Matter model postulates that it interacts with Standard Model particles only through a massive photon-like vector particle, called dark photon or A′. The PADME experiment at the DAΦNE Beam-Test Facility (BTF) in Frascati is designed to detect dark photons produced in positron on fixed target annihilations decaying to dark matter (e+e-→γA′) by measuring the final state missing mass. The DAQ system of the PADME experiment will handle a total of 921 channels, with a DAQ rate of 50 Hz. All channels will be acquired using the CAEN V1742 board, a 32 channels 5 GS/s digitizer based on the DRS4 chip. Two such boards were successfully used during the 2015 and 2016 tests at the BTF, where a complete DAQ system, prototypal to the one which will be used for the final experiment, was set up. In this paper we will report on the details of the DAQ system, with specific reference to our experience with the V1742 board.