论文标题
$ \ rm {cf} _4 $闪光灯在气态时射击室中闪光灯的光透射测量
Optical transmittance measurements of sheet resistors for the $\rm {CF}_4$ scintillating light in a gaseous time-projection chamber
论文作者
论文摘要
已经开发了具有可重构$ Z $坐标的核后坐力轨迹的气态时间预测室（TPC），用于黑暗搜索和低放射性背景中的$α$粒子成像。如果板电阻器具有可见光的光传递，并确定这些信号之间的时间差的漂移长度，则具有固定场笼子的TPC显示了检测电荷和光子产生的电荷和光子的潜力。在这项研究中，板电阻的光传递量为$ 24.5 \ pm0.1 _ {\ rm Stat} \ pm0.6 _ {\ rm syst} \％$，对于$ \ rm {cf} _4 $ scintiLlating Light，使用$α$ - part $ -pratticle来源。观察到光电子的数量为$ \ rm \ rm \ sim20〜p.e。$ for 5.3〜mev $α$，并且在$ \ rm cf_4 $ gas中存在板电阻。然后，讨论通过使用多烷烃光电管和sipms进行近红外光，可以观察到多少光电子，以检测较低的能量轨道。
A gaseous time-projection chamber (TPC) with a reconstructable $z$ coordinate for nuclear recoil tracks has been developed for dark-matter searches and $α$ particle imagings in a low radioactivity background. A TPC with a sheet-resistor field cage shows a potential to detect charge and photons produced by tracks if the sheet resistor has optical transmittance for visible light, and determine a drift length from a time difference between these signals. In this study, an optical transmittance of sheet resistors was measured to be $24.5\pm0.1_{\rm stat}\pm0.6_{\rm syst}\%$ for the $\rm {CF}_4$ gas scintillating light using an $α$-particle source. The number of photoelectrons is observed to be $\rm\sim20~p.e.$ for 5.3~MeV$α$ with the existence of a sheet resistor in the $\rm CF_4$ gas. Then, it is discussed how many photoelectrons to be observable by using multi-alkali-cathode phototubes and SiPMs for near-infrared light in order to detect lower energy tracks.
