桑福德霍姆斯塔克地下研究设施
The Sanford Underground Research Facility at Homestake
摘要：
位于南达科他州Lead的前Homestake金矿已被改造成一个专用设施，用于进行稀有过程物理学的地下研究，并提供生物学，地质学和工程学等其他学科的研究机会。桑福德地下研究设施（SURF）的一个关键组成部分是戴维斯校区，该校区位于4850英尺（4300 m.w.e.）的高度。目前主持两个主要的物理项目：LUX暗物质实验和MAJORANA DEMONSTRATOR无中微子双β衰变实验。此外，两个低背景计数器目前在戴维斯校区运行，以支持当前和未来的实验。4850L罗斯校区正在扩建地下实验室空间，以保持和提高低背景分析能力，并容纳一个独特的核天体物理加速器设施。在SURF进行其他未来实验的计划也在进行中，包括下一代直接搜索暗物质实验和费米实验室领导的国际长基线中微子计划。为了解适应这些未来项目所需的基础设施发展而进行的规划工作进展顺利，在某些情况下已经开始。分区域资源中心是一个专门的研究设施，具有显著的扩展能力。
英文摘要：
The former Homestake gold mine in Lead, South Dakota has been transformed into a dedicated facility to pursue underground research in rare-process physics, as well as offering research opportunities in other disciplines such as biology, geology and engineering. A key component of the Sanford Underground Research Facility (SURF) is the Davis Campus, which is in operation at the 4850-foot level (4300 m.w.e.) and currently hosts two main physics projects: the LUX dark matter experiment and the MAJORANA DEMONSTRATOR neutrinoless double-beta decay experiment. In addition, two low-background counters currently operate at the Davis Campus in support of current and future experiments. Expansion of the underground laboratory space is underway at the 4850L Ross Campus in order to maintain and enhance low-background assay capabilities as well as to host a unique nuclear astrophysics accelerator facility. Plans to accommodate other future experiments at SURF are also underway and include the next generation of direct-search dark matter experiments and the Fermilab-led international long-baseline neutrino program. Planning to understand the infrastructure developments necessary to accommodate these future projects is well advanced and in some cases have already started. SURF is a dedicated research facility with significant expansion capability.
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