论文标题
液态氩检测器的两个SIPM阵列的表征
Characterization of two SiPM arrays from Hamamatsu and Onsemi for liquid argon detector
论文作者
论文摘要
新型的光电传感器硅光电倍增体（SIPM）被认为是下一代暗物质和中微子检测器中传统的光电层管（PMT）的替代品，尤其是在液态氩等贵重气体检测器中。但是，紧凑型SIPM阵列及其在液体氩气中可以使用的低温电子的设计几乎没有开发。因此，选择了来自Hamamatsu和Onsemi的两个候选SIPM阵列，以验证设计的可行性和有效性。在这项工作中，我们成功地开发了一个低温电子读出系统，该系统连接并使用1英寸4 $ \ times $ 4 $ 4 SIPM阵列在87〜K。放大器的功率耗散小于10 $μ$ w/mm $^2 $。此外，两种类型的SIPM阵列的倍数都在液体氩温度下测量，例如暗计数速率（DCR），故障电压（V $ {_ {_ {bd}} $），单光电部（SPE）性能，信号与噪声比（SNR）（SNR）和相交的信号概率。
Silicon photomultiplier (SiPM), a new type of photosensor, is considered a substitute for traditional photomultiplier tube (PMT) in the next generation of dark matter and neutrino detectors, especially in noble gas detectors like liquid argon. However, the design of compact SiPM arrays and their cryogenic electronics that can work in liquid argon is barely developed. Thus, two candidate SiPM arrays from Hamamatsu and Onsemi were selected to verify the feasibility and effectiveness of the design. In this work, we successfully developed a cryogenic electronics read-out system that connects and works with 1-inch 4$\times$4 SiPM arrays at 87~K. The power dissipation of amplifiers is less than 10 $μ$W/mm$^2$. Furthermore, multiply significant characteristics of both types of SiPM arrays were measured at liquid argon temperature, such as dark count rate (DCR), breakdown voltage (V${_{bd}}$), single photoelectron (SPE) performance, signal to noise ratio (SNR) and correlated signal probability.
