CsI calorimeter for the J-PARC KOTO experiment

K. Sato; J. W. Lee; S. Banno; M. Campbell; J. Comfort; T. Furukawa; E. Iwai; N. Kawasaki; T. K. Komatsubara; G. Y. Lim; Y. Maeda; T. Masuda; T. Matsumura; D. Mcfarland; R. Murayama; D. Naito; Y. Nakaya; H. Nanjo; T. Nomura; Y. Odani; T. Ota; Y. D. Ri; M. Sasaki; N. Sasao; S. Seki; T. Shimogawa; T. Shinkawa; K. Shiomi; Y. Sugiyama; S. Suzuki; Y. Tajima; M. Tecchio; M. Togawa; T. Yamanaka; Y. Yanagida; H. Yokota; H. Yoshimoto; Y. W. Wah; H. Watanabe; J. Xu

doi:10.1016/j.nima.2020.164527

CsI calorimeter for the J-PARC KOTO experiment

K. Sato, J. W. Lee, S. Banno, M. Campbell, J. Comfort, T. Furukawa, E. Iwai, N. Kawasaki, T. K. Komatsubara, G. Y. Lim, Y. Maeda, T. Masuda, T. Matsumura, D. Mcfarland, R. Murayama, D. Naito, Y. Nakaya, H. Nanjo, T. Nomura, Y. OdaniT. Ota, Y. D. Ri, M. Sasaki, N. Sasao, S. Seki, T. Shimogawa, T. Shinkawa, K. Shiomi, Y. Sugiyama, S. Suzuki, Y. Tajima, M. Tecchio, M. Togawa, T. Yamanaka, Y. Yanagida, H. Yokota, H. Yoshimoto, Y. W. Wah, H. Watanabe, J. Xu

Research Institute for Interdisciplinary Science

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

1 Citation (Scopus)

Abstract

An electromagnetic calorimeter made of undoped CsI crystals is used in the J-PARC KOTO experiment to search for new physics beyond the standard model with the K_L→π⁰νν̄ decay. The calorimeter is designed to operate in vacuum of 0.1 Pa and in a high-rate environment where the counting rate due to K_L decays is O(100) kHz. A special method to calibrate the calorimeter during the data taking without using a tracking system for charged particles is reported. The energy, position, and timing resolutions of the calorimeter were evaluated in several beam tests, and the resolutions satisfy the required performance. The energy resolution with the total energy E is 0.66⊕1.81∕E[GeV]% in the inner region of the calorimeter.

Original language	English
Article number	164527
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	982
DOIs	https://doi.org/10.1016/j.nima.2020.164527
Publication status	Published - Dec 1 2020

Keywords

Calorimeter
Pure CsI
Undoped CsI

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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Sato, K., Lee, J. W., Banno, S., Campbell, M., Comfort, J., Furukawa, T., Iwai, E., Kawasaki, N., Komatsubara, T. K., Lim, G. Y., Maeda, Y., Masuda, T., Matsumura, T., Mcfarland, D., Murayama, R., Naito, D., Nakaya, Y., Nanjo, H., Nomura, T., ... Xu, J. (2020). CsI calorimeter for the J-PARC KOTO experiment. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 982, [164527]. https://doi.org/10.1016/j.nima.2020.164527

CsI calorimeter for the J-PARC KOTO experiment. / Sato, K.; Lee, J. W.; Banno, S.; Campbell, M.; Comfort, J.; Furukawa, T.; Iwai, E.; Kawasaki, N.; Komatsubara, T. K.; Lim, G. Y.; Maeda, Y.; Masuda, T.; Matsumura, T.; Mcfarland, D.; Murayama, R.; Naito, D.; Nakaya, Y.; Nanjo, H.; Nomura, T.; Odani, Y.; Ota, T.; Ri, Y. D.; Sasaki, M.; Sasao, N.; Seki, S.; Shimogawa, T.; Shinkawa, T.; Shiomi, K.; Sugiyama, Y.; Suzuki, S.; Tajima, Y.; Tecchio, M.; Togawa, M.; Yamanaka, T.; Yanagida, Y.; Yokota, H.; Yoshimoto, H.; Wah, Y. W.; Watanabe, H.; Xu, J.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 982, 164527, 01.12.2020.

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

Sato, K, Lee, JW, Banno, S, Campbell, M, Comfort, J, Furukawa, T, Iwai, E, Kawasaki, N, Komatsubara, TK, Lim, GY, Maeda, Y, Masuda, T, Matsumura, T, Mcfarland, D, Murayama, R, Naito, D, Nakaya, Y, Nanjo, H, Nomura, T, Odani, Y, Ota, T, Ri, YD, Sasaki, M, Sasao, N, Seki, S, Shimogawa, T, Shinkawa, T, Shiomi, K, Sugiyama, Y, Suzuki, S, Tajima, Y, Tecchio, M, Togawa, M, Yamanaka, T, Yanagida, Y, Yokota, H, Yoshimoto, H, Wah, YW, Watanabe, H & Xu, J 2020, 'CsI calorimeter for the J-PARC KOTO experiment', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 982, 164527. https://doi.org/10.1016/j.nima.2020.164527

Sato, K. ; Lee, J. W. ; Banno, S. ; Campbell, M. ; Comfort, J. ; Furukawa, T. ; Iwai, E. ; Kawasaki, N. ; Komatsubara, T. K. ; Lim, G. Y. ; Maeda, Y. ; Masuda, T. ; Matsumura, T. ; Mcfarland, D. ; Murayama, R. ; Naito, D. ; Nakaya, Y. ; Nanjo, H. ; Nomura, T. ; Odani, Y. ; Ota, T. ; Ri, Y. D. ; Sasaki, M. ; Sasao, N. ; Seki, S. ; Shimogawa, T. ; Shinkawa, T. ; Shiomi, K. ; Sugiyama, Y. ; Suzuki, S. ; Tajima, Y. ; Tecchio, M. ; Togawa, M. ; Yamanaka, T. ; Yanagida, Y. ; Yokota, H. ; Yoshimoto, H. ; Wah, Y. W. ; Watanabe, H. ; Xu, J. / CsI calorimeter for the J-PARC KOTO experiment. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2020 ; Vol. 982.

@article{ba3d5ff9fbf24a989c27722ec7e3b6a5,

title = "CsI calorimeter for the J-PARC KOTO experiment",

abstract = "An electromagnetic calorimeter made of undoped CsI crystals is used in the J-PARC KOTO experiment to search for new physics beyond the standard model with the KL→π0ν{\=ν} decay. The calorimeter is designed to operate in vacuum of 0.1 Pa and in a high-rate environment where the counting rate due to KL decays is O(100) kHz. A special method to calibrate the calorimeter during the data taking without using a tracking system for charged particles is reported. The energy, position, and timing resolutions of the calorimeter were evaluated in several beam tests, and the resolutions satisfy the required performance. The energy resolution with the total energy E is 0.66⊕1.81∕E[GeV]% in the inner region of the calorimeter.",

keywords = "Calorimeter, Pure CsI, Undoped CsI",

author = "K. Sato and Lee, {J. W.} and S. Banno and M. Campbell and J. Comfort and T. Furukawa and E. Iwai and N. Kawasaki and Komatsubara, {T. K.} and Lim, {G. Y.} and Y. Maeda and T. Masuda and T. Matsumura and D. Mcfarland and R. Murayama and D. Naito and Y. Nakaya and H. Nanjo and T. Nomura and Y. Odani and T. Ota and Ri, {Y. D.} and M. Sasaki and N. Sasao and S. Seki and T. Shimogawa and T. Shinkawa and K. Shiomi and Y. Sugiyama and S. Suzuki and Y. Tajima and M. Tecchio and M. Togawa and T. Yamanaka and Y. Yanagida and H. Yokota and H. Yoshimoto and Wah, {Y. W.} and H. Watanabe and J. Xu",

note = "Funding Information: We would like to thank the J-PARC Accelerator and Hadron Experimental Facility groups for their support and for providing stable beam operations. We would also like to recognize the KEK Central Computer System for providing the huge computing power. This material is based upon work supported by the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan and the Japan Society for the Promotion of Science (JSPS) under the MEXT, Japan KAKENHI Grant No. JP18071006 and the JSPS, Japan KAKENHI Grant No. JP23224007 , and through the Japan-U.S. Cooperative Research Program in High Energy Physics ; and the U.S. Department of Energy , Office of Science, Office of High Energy Physics, under Award No. DE-SC0004407 . ",

year = "2020",

month = dec,

day = "1",

doi = "10.1016/j.nima.2020.164527",

language = "English",

volume = "982",

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

issn = "0168-9002",

publisher = "Elsevier",

}

TY - JOUR

T1 - CsI calorimeter for the J-PARC KOTO experiment

AU - Sato, K.

AU - Lee, J. W.

AU - Banno, S.

AU - Campbell, M.

AU - Comfort, J.

AU - Furukawa, T.

AU - Iwai, E.

AU - Kawasaki, N.

AU - Komatsubara, T. K.

AU - Lim, G. Y.

AU - Maeda, Y.

AU - Masuda, T.

AU - Matsumura, T.

AU - Mcfarland, D.

AU - Murayama, R.

AU - Naito, D.

AU - Nakaya, Y.

AU - Nanjo, H.

AU - Nomura, T.

AU - Odani, Y.

AU - Ota, T.

AU - Ri, Y. D.

AU - Sasaki, M.

AU - Sasao, N.

AU - Seki, S.

AU - Shimogawa, T.

AU - Shinkawa, T.

AU - Shiomi, K.

AU - Sugiyama, Y.

AU - Suzuki, S.

AU - Tajima, Y.

AU - Tecchio, M.

AU - Togawa, M.

AU - Yamanaka, T.

AU - Yanagida, Y.

AU - Yokota, H.

AU - Yoshimoto, H.

AU - Wah, Y. W.

AU - Watanabe, H.

AU - Xu, J.

N1 - Funding Information: We would like to thank the J-PARC Accelerator and Hadron Experimental Facility groups for their support and for providing stable beam operations. We would also like to recognize the KEK Central Computer System for providing the huge computing power. This material is based upon work supported by the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan and the Japan Society for the Promotion of Science (JSPS) under the MEXT, Japan KAKENHI Grant No. JP18071006 and the JSPS, Japan KAKENHI Grant No. JP23224007 , and through the Japan-U.S. Cooperative Research Program in High Energy Physics ; and the U.S. Department of Energy , Office of Science, Office of High Energy Physics, under Award No. DE-SC0004407 .

PY - 2020/12/1

Y1 - 2020/12/1

N2 - An electromagnetic calorimeter made of undoped CsI crystals is used in the J-PARC KOTO experiment to search for new physics beyond the standard model with the KL→π0νν̄ decay. The calorimeter is designed to operate in vacuum of 0.1 Pa and in a high-rate environment where the counting rate due to KL decays is O(100) kHz. A special method to calibrate the calorimeter during the data taking without using a tracking system for charged particles is reported. The energy, position, and timing resolutions of the calorimeter were evaluated in several beam tests, and the resolutions satisfy the required performance. The energy resolution with the total energy E is 0.66⊕1.81∕E[GeV]% in the inner region of the calorimeter.

AB - An electromagnetic calorimeter made of undoped CsI crystals is used in the J-PARC KOTO experiment to search for new physics beyond the standard model with the KL→π0νν̄ decay. The calorimeter is designed to operate in vacuum of 0.1 Pa and in a high-rate environment where the counting rate due to KL decays is O(100) kHz. A special method to calibrate the calorimeter during the data taking without using a tracking system for charged particles is reported. The energy, position, and timing resolutions of the calorimeter were evaluated in several beam tests, and the resolutions satisfy the required performance. The energy resolution with the total energy E is 0.66⊕1.81∕E[GeV]% in the inner region of the calorimeter.

KW - Calorimeter

KW - Pure CsI

KW - Undoped CsI

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VL - 982

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

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