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arXiv 1809.10337physics.ins-detnucl-ex
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关于TUCAN对中子电偶极矩的研究

Towards TUCAN's Search for the Neutron Electric Dipole Moment

Wolfgang Schreyer, TUCAN collaboration

摘要:

TRIUMF超冷先进中子(TUCAN)合作是一个跨太平洋的合作,目标是测量中子电偶极矩。我们的目标是达到前所未有的$10^{-27}\,e$ cm灵敏度,比目前这个难以捉摸的量的上限提高30倍。为了实现这一目标,我们正在计划下一代超冷中子源,基于TRIUMF的新的专用中子源,液体氘作为冷慢化剂,超流氦作为超冷中子转换器。为了在20 $\,$ kW的全束功率下操作,$^3$ He制冷机将在0.8 $\,$ K下提供10 $\,$ W的冷却功率,将转换器冷却到1.1 $\,$ K的温度。

英文摘要:

The TRIUMF ultracold advanced neutron (TUCAN) collaboration is a transpacific collaboration with the objective to measure the neutron electric dipole moment. We aim for an unprecedented sensitivity of $10^{-27}\,e$cm, an improvement by a factor of 30 over the current upper limit for this elusive quantity. To achieve this goal, we are planning a next-generation source for ultracold neutrons, based on a new, dedicated neutron spallation source at TRIUMF, liquid deuterium as cold moderator, and superfluid helium as ultracold-neutron converter. To operate at the full beam power of 20$\,$kW, a $^3$He fridge will provide a cooling power of 10$\,$W at 0.8$\,$K, cooling the converter to a temperature of 1.1$\,$K.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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