EURECA Conceptual Design Report
EURECA Conceptual Design Report
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DOI：
10.1016/j.dark.2014.03.004
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发表时间：
2014-04-01
影响因子：
5.5
通讯作者：
Zoeller, A.
中科院分区：
文献类型：
--
作者：
Angloher, G.;Armengaud, E.;Zoeller, A.
EURECA（欧洲地下稀有事件量热计阵列）项目旨在使用低温测辐射热计寻找暗物质粒子。本项目的支持者已决定集中他们的优势和专业知识，建立一个设施，容纳多达1000公斤的探测器，EURECA，包括锗和CaWO 4晶体的第一个例子。屏蔽将通过一个大型水箱提供，其中将浸入带有探测器的低温恒温器。EURECA基础设施将成为对使用低温探测器进行暗物质搜索感兴趣的社区的重要工具。除了欧洲的探测器，它还将被设计为承载其他类型的类似低温探测器，这些探测器需要毫开尔文的工作温度。特别是，这包括SuperCDMS团队目前使用的锗探测器，这是继EURECA和SuperCDMS合作开展的当前合作工作之后。EURECA将分为两个阶段。第一阶段的目标是灵敏度为3。10（-10）pb，将涉及建造基础设施、低温恒温器和屏蔽，以及操作150公斤的探测器。第二阶段将增加850公斤的探测器，不同探测器之间的相对重量由合作根据物理范围决定。灵敏度为2。第二阶段的目标是10（-11）Pb。EURECA将理想地受益于欧洲最深的地下实验室- LSM的计划扩展。通过独立于站点的设计，它也可以托管在类似或更深站点的其他位置，如SNOLAB。(C)2014作者由爱思唯尔公司出版
The EURECA (European Underground Rare Event Calorimeter Array) project is aimed at searching for dark matter particles using cryogenic bolometers. The proponents of the present project have decided to pool their strengths and expertise to build a facility to house up to 1000 kg of detectors, EURECA, consisting in the first instance of germanium and CaWO4 crystals. The shielding will be provided through a large water tank in which the cryostat with detectors will be immersed. The EURECA infrastructure will be an essential tool for the community interested in using cryogenic detectors for dark matter searches. Beyond European detectors, it will be designed to host other types of similar cryogenic detectors, requiring millikelvin operating temperatures. In particular, this includes the germanium detectors currently in use by the SuperCDMS team, following the current collaborative work performed by the EURECA and SuperCDMS collaborations. EURECA will have two stages. The first phase aims at a sensitivity of 3 . 10(-10) pb and will involve building the infrastructure, cryostat and shielding, and operating 150 kg of detectors. The second phase will be completed with 850 kg of additional detectors, the relative weight between the different detectors being decided by the collaboration according to the physics reach. A sensitivity of 2 . 10(-11) pb is aimed for at the second stage. EURECA will ideally benefit from the planned extension of the deepest underground laboratory in Europe - LSM. With a site-independent design, it can also be hosted in other locations at similar or deeper sites such as SNOLAB. (C) 2014 The Authors. Published by Elsevier B.V.