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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1410.8530physics.ins-dethep-exhep-phnucl-exphysics.geo-ph
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定向反中微子探测

Directional Antineutrino Detection

Benjamin R. Safdi, Burkhant Suerfu

摘要:

我们提出了第一个真正的定向反中微子探测器的反中微子以上的氢逆β衰变(IBD)阈值,与潜在的应用,包括监测核不扩散,空间映射地理中微子,表征扩散超新星中微子背景,并在中微子部门寻找新的物理。探测器由相邻和分离的目标和捕获闪烁体平面组成。IBD事件发生在靶层中,靶层足够薄,允许中子在没有弹性散射的情况下逃逸。中子在较厚的硼俘获层中被探测到。IBD事件的位置和正电子的动量是通过跟踪正电子穿过探测器的轨迹来确定的。我们的设计是对现有反中微子探测器的直接修改;可以用现有技术建造原型。

英文摘要:

We propose the first truly directional antineutrino detector for antineutrinos above the hydrogen inverse beta decay (IBD) threshold, with potential applications including monitoring for nuclear nonproliferation, spatially mapping geo-neutrinos, characterizing the diffuse supernova neutrino background, and searching for new physics in the neutrino sector. The detector consists of adjacent and separated target and capture scintillator planes. IBD events take place in the target layers, which are thin enough to allow the neutrons to escape without scattering elastically. The neutrons are detected in the thicker, boron-loaded capture layers. The location of the IBD event and the momentum of the positron are determined by tracking the positron's trajectory through the detector. Our design is a straightforward modification of existing antineutrino detectors; a prototype could be built with existing technology.

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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