SGER: Negative Ion TPC - Proposal for a Small Grant for Exploratory Research

这笔探索性研究的小额拨款将用于检查操作气体漂移探测器的可能性，其中负离子而不是电子漂移。由于负离子在漂移过程中的扩散比电子小得多，因此更容易获得漂移离子的良好空间分辨率。这种装置的一个应用将是探测由中微子的弹性散射引起的反冲核。这可以反过来用于研究与核子的自旋和奇异性有关的物理问题，以及在宇宙中寻找暗物质。

This Small Grant for Exploratory Research will be used to examine the possibility of operating a gas drift detector in which negative ions are drifted rather than electrons. Because negative ions diffuse much less than electrons during drift, it may be easier to achieve good spatial resolution of the drifting ions. One application of such a device would be to detect recoiling nuclei from elastic scattering of neutrinos. This could in turn be used to study physics questions associated with the spin and strangeness content of the nucleon, as well as searches for dark matter in the universe.