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arXiv 1701.04820physics.ins-det
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aCORN背散射抑制β谱仪

The aCORN Backscatter-Suppressed Beta Spectrometer

M. T. Hassan, F. Bateman, B. Collett, G. Darius, C. DeAngelis, M. S. Dewey, G. L. Jones, A. Komives, A. Laptev, M. P. Mendenhall, J. S. Nico, G. Noid, E. J. Ste… 展开作者

M. T. Hassan, F. Bateman, B. Collett, G. Darius, C. DeAngelis, M. S. Dewey, G. L. Jones, A. Komives, A. Laptev, M. P. Mendenhall, J. S. Nico, G. Noid, E. J. Stephenson, I. Stern, C. Trull, F. E. Wietfeldt

摘要:

来自β谱仪的具有不完全能量沉积的电子的后向散射可以在许多类型的实验中导致不期望的效应。我们提出并讨论了一个背散射抑制β谱仪的设计和操作,该谱仪是作为测量中子β衰变(aCORN)中电子-反中微子相关系数的计划的一部分而开发的。背散射探测器阵列围绕塑料闪烁体β能量探测器。光谱仪包含轴向磁场梯度,因此电子被有效地接纳,但在反向散射后通过入口逃逸回来的概率很低。文中讨论了该光谱仪的设计、结构、标定和性能。

英文摘要:

Backscatter of electrons from a beta spectrometer, with incomplete energy deposition, can lead to undesirable effects in many types of experiments. We present and discuss the design and operation of a backscatter-suppressed beta spectrometer that was developed as part of a program to measure the electron-antineutrino correlation coefficient in neutron beta decay (aCORN). An array of backscatter veto detectors surrounds a plastic scintillator beta energy detector. The spectrometer contains an axial magnetic field gradient, so electrons are efficiently admitted but have a low probability for escaping back through the entrance after backscattering. The design, construction, calibration, and performance of the spectrometer are discussed.

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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