Construction and commissioning of the SuperNEMO detector tracker

Construction and commissioning of the SuperNEMO detector tracker
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SuperNEMO探测器跟踪器的构建和调试

DOI:
10.1016/j.nima.2015.11.083
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发表时间:
2016
期刊:
Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子:
--
通讯作者:
Cascella M
Cascella M
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--
文献类型:
--
作者:
Cascella M

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SuperNEMO探测器将在莫丹地下实验室寻找中微子双β衰变;探测器的设计允许对衰变事件进行完整的拓扑重建,从而实现出色的背景抑制水平,并且在发现的情况下,能够确定轻子数违反过程的性质。为了证明整个实验的可行性,我们正在建造一个包含7公斤82硒的演示模块,在2.5年后预期灵敏度为| m β β|< 0.2−0.4 eV。演示跟踪器目前正在英国组装;跟踪器设计的主要挑战是限制背景所需的高辐射纯度。因此,细胞布线是自动化的,跟踪器组装的每一步都在清洁的环境中进行。所有组件都经过仔细的放射性纯度筛选,跟踪器的每个部分一旦组装好,就会被密封并检查氡辐射。我们介绍了探测器的设计,施工的当前状态,并介绍了演示模块跟踪器的一个部分的地面调试的第一批结果。
The SuperNEMO detector will search for neutrinoless double beta decay at the Modane Underground Laboratory; the detector design allows complete topological reconstruction of the decay event enabling excellent levels of background rejection and, in the event of a discovery, the ability to determine the nature of the lepton number violating process. In order to demonstrate the feasibility of the full experiment, we are building a Demonstrator Module containing 7 kg of 82 Se, with an expected sensitivity of| m β β|< 0.2− 0.4 eV after 2.5 yr. The demonstrator tracker is currently being assembled in the UK; the main challenge in the tracker design is the high radiopurity required to limit the background. For this reason the cell wiring is automated and every step of the tracker assembly happens in a clean environment. All components are carefully screened for radiopurity and each section of the tracker, once assembled, is sealed and checked for Radon emanation. We present the detector design, the current status of the construction and present the first results from the surface commissioning of one section of the Demonstrator Module tracker.
NEMO 合作,NEMO 3 探测器的技术设计和性能
DOI: --
发表时间: 2005
期刊: Nuclear Instruments and Methods in Physics Research A536
影响因子: --
作者:
R.Arnold et al.;NEMO collaboration;R.Arnold et al.
通讯作者: R.Arnold et al.
Masabumi Nishikawa.:物理研究中的核仪器和方法 A. (1989)
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