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The MiniCLEAN dark matter experiment will exploit a single-phase liquid-argon detector instrumented with 92 photomultiplier tubes placed in the cryogen temperature with 4-$\pi$ coverage of a 500 kg (150 kg) target (fiducial) mass. The…

仪器与探测器 · 物理学 2017-11-08 JuiJen , Wang

In-situ plasma processing of superconducting radio frequency (SRF) cavities is a performance recovery technique used to mitigate the field emission limiting phenomenon. It has been proved very effective at major particle accelerator…

The radioactive noble gas radon can be a serious background source in the underground particle physics experiments studying processes that deposit energy comparable to its decay products. Low energy solar neutrino measurements at…

仪器与探测器 · 物理学 2020-10-12 Y. Nakano , T. Hokama , M. Matsubara , M. Miwa , M. Nakahata , T. Nakamura , H. Sekiya , Y. Takeuchi , S. Tasaka , R. A. Wendell

Type 5A molecular sieves (MS) have been demonstrated to remove radon from SF$_6$ gas. This is important for ultra-sensitive SF$_6$ gas-based directional dark matter and related rare-event physics experiments, as radon can provide a source…

仪器与探测器 · 物理学 2021-02-17 R. R. Marcelo Gregorio , N. J. C. Spooner , J. Berry , A. C. Ezeribe , K. Miuchi , H. Ogawa , A. Scarff

The Dark Matter Time Projection Chamber collaboration recently reported a dark matter limit obtained with a 10 liter time projection chamber filled with CF4 gas. The 10 liter detector was capable of 2D tracking (perpendicular to the drift…

The gas SF$_6$ has become of interest as a negative ion drift gas for use in directional dark matter searches. However, as for other targets in such searches, it is important that radon contamination can be removed as this provides a source…

仪器与探测器 · 物理学 2017-10-06 A. C. Ezeribe , W. Lynch , R. R. Marcelo Gregorio , J. Mckeand , A. Scarff , N. J. C. Spooner

Radiopure materials for detector components in rare event searches may be contaminated after manufacturing with long-lived $^{210}$Pb produced by the decay of atmospheric radon. Charged radon daughters deposited on the surface or implanted…

仪器与探测器 · 物理学 2018-01-17 Eric S. Morrison , Eric H. Miller , Therese Frels , Richard W. Schnee , Joseph Street

We study a feebly interacting massive particle realization of the Scotogenic Dirac Model in which the lightest neutral fermion $N_1$ serves as a dark matter candidate, produced via the freeze-in or super-WIMP mechanism. The model generates…

高能物理 - 唯象学 · 物理学 2025-10-30 Shu-Yuan Guo , Man-Yu Zhao

In the field of directional dark matter experiments, SF6 has emerged as an ideal target gas. A critical challenge with this gas, and with other proposed gases, is the effective removal of contaminant gases. This includes radon which produce…

仪器与探测器 · 物理学 2024-02-01 R. R. Marcelo Gregorio , N. J. C. Spooner , F. Dastgiri , A. C. Ezeribe , G. Lane , A. G. McLean , K. Miuchi , H. Ogawa

We demonstrate that current and planned underground neutrino experiments could offer a powerful probe of few-MeV dark matter when combined with a nearby high-intensity low-to-medium energy electron accelerator. This experimental setup, an…

高能物理 - 唯象学 · 物理学 2015-11-18 Eder Izaguirre , Gordan Krnjaic , Maxim Pospelov

The MiniCLEAN dark matter experiment will exploit a single-phase liquid-argon detector instrumented with photomultiplier tubes submerged in the cryogen with nearly 4pi coverage of a 500 kg (150 kg) target (fiducial) mass. The high light…

仪器与探测器 · 物理学 2011-10-06 Andrew Hime

We consider the absorption by bound electrons of dark matter in the form of dark photons and axion-like particles, as well as of dark photons from the Sun, in current and next-generation direct detection experiments. Experiments sensitive…

高能物理 - 唯象学 · 物理学 2017-09-22 Itay M. Bloch , Rouven Essig , Kohsaku Tobioka , Tomer Volansky , Tien-Tien Yu

This report presents an overview of the unconventional use of charge-coupled devices (CCDs) to search for Dark Matter (DM). The DArk Matter In CCDs (DAMIC Experiment) employs the bulk silicon of thick, fully-depleted CCDs as a target for…

仪器与探测器 · 物理学 2020-01-14 N. Castello-Mor , DAMIC-M Collaboration

The Jiangmen Underground Neutrino Observatory(JUNO) is a state-of-the-art liquid scintillator-based neutrino physics experiment under construction in South China. To reduce the background from external radioactivities, a water Cherenkov…

仪器与探测器 · 物理学 2024-03-20 T. Y. Guan , Y. P. Zhang , B. Wang , C. Guo , J. C. Liu , Q. Tang , C. G. Yang , C. Li

The background caused by radon and its daughters is an important background in the low background liquid scintillator (LS) detectors. The study of the diffusion behaviour of radon in the LS contributes to the analysis of the related…

仪器与探测器 · 物理学 2023-04-19 Z. F. Xu , C. Guo , J. C. Liu , Y. P. Zhang , P. Zhang , C. G. Yang , Q. Tang , Y. Liu , C. Li , T. Y. Guan

The SuperCDMS experiment is designed to directly detect weakly interacting massive particles (WIMPs) that may constitute the dark matter in our Galaxy. During its operation at the Soudan Underground Laboratory, germanium detectors were run…

宇宙学与河外天体物理 · 物理学 2018-01-24 SuperCDMS Collaboration , R. Agnese , A. J. Anderson , T. Aralis , T. Aramaki , I. J. Arnquist , W. Baker , D. Balakishiyeva , D. Barker , R. Basu Thakur , D. A. Bauer , T. Binder , M. A. Bowles , P. L. Brink , R. Bunker , B. Cabrera , D. O. Caldwell , R. Calkins , C. Cartaro , D. G. Cerdeno , Y. Chang , H. Chagani , Y. Chen , J. Cooley , B. Cornell , P. Cushman , M. Daal , P. C. F. Di Stefano , T. Doughty , L. Esteban , E. Fascione , E. Figueroa-Feliciano , M. Fritts , G. Gerbier , M. Ghaith , G. L. Godfrey , S. R. Golwala , J. Hall , H. R. Harris , Z. Hong , E. W. Hoppe , L. Hsu , M. E. Huber , V. Iyer , D. Jardin , A. Jastram , C. Jena , M. H. Kelsey , A. Kennedy , A. Kubik , N. A. Kurinsky , A. Leder , B. Loer , E. Lopez Asamar , P. Lukens , D. MacDonell , R. Mahapatra , V. Mandic , N. Mast , E. H. Miller , N. Mirabolfathi , R. A. Moffatt , B. Mohanty , J. D. Morales Mendoza , J. Nelson , J. L. Orrell , S. M. Oser , K. Page , W. A. Page , R. Partridge , M. Pepin , M. Penalver Martinez , A. Phipps , S. Poudel , M. Pyle , H. Qiu , W. Rau , P. Redl , A. Reisetter , T. Reynolds , A. Roberts , A. E. Robinson , H. E. Rogers , T. Saab , B. Sadoulet , J. Sander , K. Schneck , R. W. Schnee , S. Scorza , K. Senapati , B. Serfass , D. Speller , M. Stein , J. Street , H. A. Tanaka , D. Toback , R. Underwood , A. N. Villano , B. von Krosigk , B. Welliver , J. S. Wilson , M. J Wilson , D. H. Wright , S. Yellin , J. J. Yen , B. A. Young , X. Zhang , X. Zhao

In this work we analyse the ultimate sensitivity of dark matter direct detection experiments, the "neutrino-floor", in the presence of anomalous sources of dark radiation in form of SM or semi-sterile neutrinos. This flux-component is…

高能物理 - 唯象学 · 物理学 2020-09-01 Marco Nikolic , Suchita Kulkarni , Josef Pradler

Radar jamming suppression, particularly against mainlobe jamming, has become a critical focus in modern radar systems. This article investigates advanced mainlobe jamming suppression techniques utilizing a novel multiple-input…

信号处理 · 电气工程与系统科学 2025-05-15 Huake Wang , Bairui Cai , Guisheng Liao