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arXiv 1901.02587physics.ins-det
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负离子气体和双相液氩TPC的原型模拟前端

Prototype Analog Front-end for Negative-ion Gas and Dual-phase Liquid-Ar TPCs

Miki Nakazawa, Tetsuichi Kishishita, Masayoshi Shoji, Ken Sakashita, Tomonori Ikeda, Hirohisa Ishiura, James B. R. Battat, Catherine Nicoloff, Manobu M. Tanaka,… 展开作者

Miki Nakazawa, Tetsuichi Kishishita, Masayoshi Shoji, Ken Sakashita, Tomonori Ikeda, Hirohisa Ishiura, James B. R. Battat, Catherine Nicoloff, Manobu M. Tanaka, Takuya Hasegawa, Kentaro Miuchi

摘要:

我们报告了一个多功能的模拟前端兼容的负离子$μ$的定向暗物质搜索,以及双相,下一代$\mathcal{O}$(10~kt)液氩TPC研究中微子振荡,核子衰变,和天体物理中微子的最新发展。尽管负离子和液氩TPC的操作条件非常不同(分别为室温\textit{vs.} $\sim$ 88~K操作),但读出电子器件的要求是相似的。两者都需要一个宽的动态范围高达1600 fC,小于2000- 5000 e $^-$噪声为80 fC的典型信号与检测器电容为$C_{\rm det} \approx 300$ ~ pF。为了满足这样的挑战性要求,一个原型ASIC是新设计的使用180纳米CMOS技术。在这里,我们报告的ASIC的性能,包括整形时间,动态范围和等效噪声电荷(ENC)的测量。我们还演示了低压负离子$μ$ -TPC上的ASIC的第一次操作。

英文摘要:

We report on the recent development of a versatile analog front-end compatible with a negative-ion $μ$-TPC for a directional dark matter search as well as a dual-phase, next-generation $\mathcal{O}$(10~kt) liquid argon TPC to study neutrino oscillations, nucleon decay, and astrophysical neutrinos. Although the operating conditions for negative-ion and liquid argon TPCs are quite different (room temperature \textit{vs.} $\sim$88~K operation, respectively), the readout electronics requirements are similar. Both require a wide-dynamic range up to 1600 fC, and less than 2000--5000 e$^-$ noise for a typical signal of 80 fC with a detector capacitance of $C_{\rm det} \approx 300$~pF. In order to fulfill such challenging requirements, a prototype ASIC was newly designed using 180-nm CMOS technology. Here, we report on the performance of this ASIC, including measurements of shaping time, dynamic range, and equivalent noise charge (ENC). We also demonstrate the first operation of this ASIC on a low-pressure negative-ion $μ$-TPC.

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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