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An active noise cancellation technique for the CUORE Pulse Tube cryocoolers

机译:CUORE脉冲管冷凝器的主动噪声消除技术

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摘要

The Cryogenic Underground Observatory for Rare Events (CUORE) experiment at Gran Sasso National Laboratory of INFN searches for neutrinoless double beta decay using TeO2 crystals as cryogenic bolometers. The sensitivity of the measurement heavily depends on the energy resolution of the detector, therefore the success of the experiment stands on the capability to provide an extremely low noise environment. One of the most relevant sources of noise are the mechanical vibrations induced by the five Pulse Tube cryocoolers used on the cryogenic system which houses the detectors. To address this problem, we developed a system to control the relative phases of the pulse tube pressure oscillations, in order to achieve coherent superposition of the mechanical vibrations transmitted to the detectors. In the following, we describe this method and report on the results in applying it to the CUORE system.
机译:Gran Sasso National实验室的低温地下天文台(CUORE)实验,Infn National实验室使用Teo2晶体作为低温钻孔测定的中微子双β衰变。 测量的灵敏度大大取决于检测器的能量分辨率,因此实验的成功符合提供极低噪声环境的能力。 最相关的噪声源之一是由探测器的低温系统中使用的五个脉冲管冷凝器引起的机械振动。 为了解决这个问题,我们开发了一种控制脉冲管压力振荡的相对阶段的系统,以实现传输到探测器的机械振动的相干叠加。 在下文中,我们描述了该方法并报告了将其应用于CUORE系统的结果。

著录项

  • 来源
    《Cryogenics》 |2018年第2018期|共10页
  • 作者单位

    INFN Lab Nazl Gran Sasso I-67100 Laquila Italy;

    INFN Lab Nazl Gran Sasso I-67100 Laquila Italy;

    INFN Lab Nazl Gran Sasso I-67100 Laquila Italy;

    INFN Sez Genova I-16146 Genoa Italy;

    INFN Lab Nazl Gran Sasso I-67100 Laquila Italy;

    INFN Sez Genova I-16146 Genoa Italy;

    INFN Sez Milano Bicocca I-20126 Milan Italy;

    INFN Lab Nazl Gran Sasso I-67100 Laquila Italy;

    INFN Lab Nazl Gran Sasso I-67100 Laquila Italy;

    Lawrence Berkeley Natl Lab Div Nucl Sci Berkeley CA 94720 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 制冷工程;低温物理学;
  • 关键词

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