论文标题
CCD中的暗物质(DAMIC-M):硅检测器设备,寻找低能物理过程
Dark Matter in CCDs at Modane (DAMIC-M): a silicon detector apparatus searching for low-energy physics processes
论文作者
论文摘要
CCD(DAMIC)中的暗物质是一种硅探测器设备,主要用于使用硅电荷耦合器件(CCD)作为目标搜索低质量暗物质。每个CCD中的硅目标为\ si {675} {\ micro \ meter}厚,其顶表面被分为1600万\ \ si {15} {\ micro \ micto \ metro \ metro \米} $ \ times $ \ si $ \ si {15} {\ micro \ micro \米} pixels pixels。 DAMIC合作已在Snolab安装了许多此类CCD。截至2019年,Snolab的Damic已达到操作条件,泄漏电流小于\ si {8.2e-22} {\ Ampere \ per \ per \ centi \ meter \ squared},并且读取噪声为\ si {1.6} {\ equarton},实现了5 ccd。几年来,将在Laboratoire Souterrain de Modane安装一个新的DAMIC设备。 MODANE(DAMIC-M)合作的玛瑙将使用由劳伦斯·伯克利国家实验室设计的改进版本的CCD,其船长放大器与船长放大器一起使用,这些放大器使用具有多重采样的非破坏性读数,从而使CCDS能够实现\ si {0.068} {\ elector的读取噪声。与这些船长CCD的低泄漏电流结合使用,低读数噪声将使Damic-M与碰撞能量低至\ si {1} {\ ElectronVolt}的碰撞能量观察物理过程。 DAMIC-M实验将由每个CCD中的50个大区域船长CCD组成,其中超过3600万像素。以下程序将在Snolab及其结果以及新的DAMIC-M实验的能力和状态引入DAMIC设备。
Dark Matter In CCDs (DAMIC) is a silicon detector apparatus used primarily for searching for low-mass dark matter using the silicon bulk of Charge-Coupled Devices (CCDs) as targets. The silicon target within each CCD is \SI{675}{\micro\meter} thick and its top surface is divided into over 16 million \SI{15}{\micro\meter} $\times$ \SI{15}{\micro\meter} pixels. The DAMIC collaboration has installed a number of these CCDs at SNOLAB. As of 2019, DAMIC at SNOLAB has reached operational conditions with leakage current less than \SI{8.2e-22}{\ampere\per\centi\meter\squared} and a readout noise of \SI{1.6}{\electron}, achieved with 5 CCDs. A new DAMIC apparatus will be installed at Laboratoire Souterrain de Modane in a few years. The DAMIC at Modane (DAMIC-M) collaboration will be using an improved version of CCDs designed by Lawrence Berkeley National Laboratory with skipper amplifiers that use non-destructive readout with multiple-sampling, enabling the CCDs to achieve a readout noise of \SI{0.068}{\electron}. The low readout noise, in conjunction with low leakage current of these skipper CCDs, will allow DAMIC-M to observe physics processes with collisions energies as low as \SI{1}{\electronvolt}. The DAMIC-M experiment will consist of an array of 50 large-area skipper CCDs with more than 36 million pixels in each CCD. The following proceeding will introduce the DAMIC apparatus at SNOLAB and its results and as well as the capabilities and the status of the new DAMIC-M experiment.