Data Acquisition and Readout System for the LUX Dark Matter Experiment

Data Acquisition and Readout System for the LUX Dark Matter Experiment
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LUX 暗物质实验的数据采集和读出系统

DOI：
10.1016/j.nima.2011.11.063
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发表时间：
2011
期刊：
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
影响因子：
1.4
通讯作者：
C. Zhang
C. Zhang
中科院分区：
物理与天体物理3区
文献类型：
--
作者：
D. Akerib;X. Bai;S. Bedikian;E. Bernard;A. Bernstein;A. Bradley;Sidney Cahn;M. Carmona;D. Carr;J. Chapman;K. Clark;T. Classen;T. Coffey;A. Curioni;S. Dazeley;L. D. Viveiros;M. Dragowsky;E. Druszkiewicz;C. Faham;S. Fiorucci;R. Gaitskell;K. Gibson;C. Hall;M. Hanhardt;B. Holbrook;M. Ihm;R. Jacobsen;L. Kastens;K. Kazkaz;R. Lander;N. Larsen;C. Lee;D. Leonard;K. Lesko;A. Lyashenko;D. Malling;R. Mannino;D. McKinsey;D. Mei;J. Mock;M. Morii;H. Nelson;J. Nikkel;M. Pangilinan;P. Phelps;T. Shutt;W. Skulski;P. Sorensen;J. Spaans;T. Stiegler;R. Svoboda;M. Sweany;M. Szydagis;J. Thomson;M. Tripathi;J. Verbus;N. Walsh;R. Webb;J. White;M. Własenko;F. Wolfs;M. Woods;C. Zhang

文献摘要

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LUX是一个两相（液体/气体）氙时间投影室，设计用于探测与暗物质粒子相互作用产生的核反冲。来自LUX检测器的信号由定制的模拟电子设备处理，为触发和数据采集（DAQ）系统提供适当形状的信号。DAQ由商用数字化仪组成，带有为LUX实验定制的固件。在涉及放射源的精确校准期间，稀有事件搜索中的数据采集系统必须适应高速率和大动态范围，同时还必须提供最大灵敏度的低阈值。LUX DAQ采用实时基线抑制技术来应对这些挑战，该技术允许最大事件采集速率超过1.5 kHz，几乎没有死区时间。本文介绍了LUX DAQ和LUX实验中采用的新的采集技术。
LUX is a two-phase (liquid/gas) xenon time projection chamber designed to detect nuclear recoils from interactions with dark matter particles. Signals from the LUX detector are processed by custom-built analog electronics which provide properly shaped signals for the trigger and data acquisition (DAQ) systems. The DAQ is comprised of commercial digitizers with firmware customized for the LUX experiment. Data acquisition systems in rare-event searches must accommodate high rate and large dynamic range during precision calibrations involving radioactive sources, while also delivering low threshold for maximum sensitivity. The LUX DAQ meets these challenges using real-time baseline suppression that allows for a maximum event acquisition rate in excess of 1.5 kHz with virtually no deadtime. This paper describes the LUX DAQ and the novel acquisition techniques employed in the LUX experiment.