Graphene-based detectors for directional dark matter detection

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/104582

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题名:	Graphene-based detectors for directional dark matter detection
作者:	Shang-Yung Wang
关键词:	detector;recoil;sensitivity;graphene;van der Waals;sulfur;background;nitrogen;time projection chamber;design;bibliography;measurement methods
日期:	2019-07-03
上传时间:	2016-01-06 11:03:55 (UTC+8)
出版者:	Springer Nature
摘要:	Dark matter detectors with directional sensitivity have the capability to distinguish dark matter induced nuclear recoils from isotropic backgrounds, thus providing a smoking gun signature for dark matter in the Galactic halo. Motivated by recent progress in graphene and two-dimensional materials research, we propose a novel class of directional dark matter detectors utilizing graphene-based van der Waals heterostructures. A conceptual design of the detector based on graphene/hexagonal boron nitride and graphene/molybdenum disulfide heterostructures is developed and analyzed. The proposed detector has modular scalability, keV-scale detection threshold, nanometer position resolution, sensitivity down to 10 GeV/c^2 dark matter mass, and intrinsic head-tail discrimination and background rejection capabilities.
關聯:	The European Physical Journal C 79, 561
DOI:	10.1140/epjc/s10052-019-7071-2
显示于类别:	[物理學系暨研究所] 期刊論文

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