Development of a low-background micro-pixel chamber for directional dark matter searches

Ryota Namai; Satoshi Higashino; Hirohisa Ishiura; Tomonori Ikeda; Mizuno Ofuji; Ayaka Nakayama; Ryo Kubota; Kiseki D. Nakamura; Hiroshi Ito; Koichi Ichimura; Ko Abe; Kazuyoshi Kobayashi; Atsushi Takada; Kentaro Miuchi

doi:10.1016/j.nima.2024.170145

Development of a low-background micro-pixel chamber for directional dark matter searches

Ryota Namai, Satoshi Higashino, Hirohisa Ishiura, Tomonori Ikeda, Mizuno Ofuji, Ayaka Nakayama, Ryo Kubota, Kiseki D. Nakamura, Hiroshi Ito, Koichi Ichimura, Ko Abe, Kazuyoshi Kobayashi, Atsushi Takada, Kentaro Miuchi

Department of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Directionality is said to provide robust evidence of the direct detection of the halo dark matter Weakly Interacting Massive Particles (WIMPs). Time projection chambers with micro-patterned gaseous detectors (MPGDs) are one of the common devices used in directional WIMP searches. A micro-pixel chamber (μ-PIC), one of the various types of MPGDs, with specially selected low background materials (LBGμ-PIC) was developed and its performance was studied. The radon emission of the LBGμ-PIC was less than 1/46 of that of the μ-PIC currently in use. Although a non-negligible gain non-homogeneity was seen for the LBGμ-PIC, it can be used for the directional WIMP search with the correction of the non-homogeneity.

Original language	English
Article number	170145
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1072
DOIs	https://doi.org/10.1016/j.nima.2024.170145
Publication status	Published - Mar 2025

Keywords

Gaseous detector
Low background technology
Micro pattern gaseous detector
Radon
μ-PIC

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10.1016/j.nima.2024.170145

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Namai, R., Higashino, S., Ishiura, H., Ikeda, T., Ofuji, M., Nakayama, A., Kubota, R., Nakamura, K. D., Ito, H., Ichimura, K., Abe, K., Kobayashi, K., Takada, A., & Miuchi, K. (2025). Development of a low-background micro-pixel chamber for directional dark matter searches. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1072, Article 170145. https://doi.org/10.1016/j.nima.2024.170145

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title = "Development of a low-background micro-pixel chamber for directional dark matter searches",

abstract = "Directionality is said to provide robust evidence of the direct detection of the halo dark matter Weakly Interacting Massive Particles (WIMPs). Time projection chambers with micro-patterned gaseous detectors (MPGDs) are one of the common devices used in directional WIMP searches. A micro-pixel chamber (μ-PIC), one of the various types of MPGDs, with specially selected low background materials (LBGμ-PIC) was developed and its performance was studied. The radon emission of the LBGμ-PIC was less than 1/46 of that of the μ-PIC currently in use. Although a non-negligible gain non-homogeneity was seen for the LBGμ-PIC, it can be used for the directional WIMP search with the correction of the non-homogeneity.",

keywords = "Gaseous detector, Low background technology, Micro pattern gaseous detector, Radon, μ-PIC",

author = "Ryota Namai and Satoshi Higashino and Hirohisa Ishiura and Tomonori Ikeda and Mizuno Ofuji and Ayaka Nakayama and Ryo Kubota and Nakamura, {Kiseki D.} and Hiroshi Ito and Koichi Ichimura and Ko Abe and Kazuyoshi Kobayashi and Atsushi Takada and Kentaro Miuchi",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s)",

year = "2025",

month = mar,

doi = "10.1016/j.nima.2024.170145",

language = "English",

volume = "1072",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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Namai, R, Higashino, S, Ishiura, H, Ikeda, T, Ofuji, M, Nakayama, A, Kubota, R, Nakamura, KD, Ito, H, Ichimura, K, Abe, K, Kobayashi, K, Takada, A & Miuchi, K 2025, 'Development of a low-background micro-pixel chamber for directional dark matter searches', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1072, 170145. https://doi.org/10.1016/j.nima.2024.170145

Development of a low-background micro-pixel chamber for directional dark matter searches. / Namai, Ryota; Higashino, Satoshi; Ishiura, Hirohisa et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 1072, 170145, 03.2025.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Development of a low-background micro-pixel chamber for directional dark matter searches

AU - Namai, Ryota

AU - Higashino, Satoshi

AU - Ishiura, Hirohisa

AU - Ikeda, Tomonori

AU - Ofuji, Mizuno

AU - Nakayama, Ayaka

AU - Kubota, Ryo

AU - Nakamura, Kiseki D.

AU - Ito, Hiroshi

AU - Ichimura, Koichi

AU - Abe, Ko

AU - Kobayashi, Kazuyoshi

AU - Takada, Atsushi

AU - Miuchi, Kentaro

PY - 2025/3

Y1 - 2025/3

N2 - Directionality is said to provide robust evidence of the direct detection of the halo dark matter Weakly Interacting Massive Particles (WIMPs). Time projection chambers with micro-patterned gaseous detectors (MPGDs) are one of the common devices used in directional WIMP searches. A micro-pixel chamber (μ-PIC), one of the various types of MPGDs, with specially selected low background materials (LBGμ-PIC) was developed and its performance was studied. The radon emission of the LBGμ-PIC was less than 1/46 of that of the μ-PIC currently in use. Although a non-negligible gain non-homogeneity was seen for the LBGμ-PIC, it can be used for the directional WIMP search with the correction of the non-homogeneity.

AB - Directionality is said to provide robust evidence of the direct detection of the halo dark matter Weakly Interacting Massive Particles (WIMPs). Time projection chambers with micro-patterned gaseous detectors (MPGDs) are one of the common devices used in directional WIMP searches. A micro-pixel chamber (μ-PIC), one of the various types of MPGDs, with specially selected low background materials (LBGμ-PIC) was developed and its performance was studied. The radon emission of the LBGμ-PIC was less than 1/46 of that of the μ-PIC currently in use. Although a non-negligible gain non-homogeneity was seen for the LBGμ-PIC, it can be used for the directional WIMP search with the correction of the non-homogeneity.

KW - Gaseous detector

KW - Low background technology

KW - Micro pattern gaseous detector

KW - Radon

KW - μ-PIC

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U2 - 10.1016/j.nima.2024.170145

DO - 10.1016/j.nima.2024.170145

M3 - Article

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SN - 0168-9002

VL - 1072

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

M1 - 170145

ER -

Development of a low-background micro-pixel chamber for directional dark matter searches

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Keywords

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