Measurement of the photon detection inefficiency of electromagnetic calorimeters at energies below 1 GeV

S. Ajimura; K. Arisaka; M. Barrio; T. Fujiwara; S. Hidaka; T. Hotta; B. Hsiung; Y. Ikegami; T. Inagaki; S. Kabe; R. Kessler; S. Kobayashi; H. Kurashige; K. Kurebayashi; T. Matsumura; T. Miyahara; K. Mori; T. Nakagawa; T. Nakamura; T. Nakano; T. Nomura; H. Okuno; N. Sasao; T. Sato; T. Shinkawa; I. Suzuki; A. Tripathi; T. Tsukamoto; Y. Wah; H. Watanabe; B. Winstein; T. Yamanaka

doi:10.1016/j.nima.2005.06.070

Measurement of the photon detection inefficiency of electromagnetic calorimeters at energies below 1 GeV

S. Ajimura, K. Arisaka, M. Barrio, T. Fujiwara, S. Hidaka, T. Hotta, B. Hsiung, Y. Ikegami, T. Inagaki, S. Kabe, R. Kessler, S. Kobayashi, H. Kurashige, K. Kurebayashi, T. Matsumura, T. Miyahara, K. Mori, T. Nakagawa, T. Nakamura, T. NakanoT. Nomura, H. Okuno, N. Sasao, T. Sato, T. Shinkawa, I. Suzuki, A. Tripathi, T. Tsukamoto, Y. Wah, H. Watanabe, B. Winstein, T. Yamanaka

Research output: Contribution to journal › Article

10 Citations (Scopus)

Abstract

The photon detection inefficiency of electromagnetic calorimeters due to photonuclear reactions has been studied at photon energies below 1 GeV using a tagged-photon beam at the KEK-Tanashi 1.3-GeV electron synchrotron. Photonuclear reactions are identified by detecting low-energy neutrons with liquid scintillation counters surrounding the sample calorimeter. For a Cesium Iodide (CsI) calorimeter with a detection threshold of 10 MeV, the inefficiency due to photonuclear reactions is 10-4 at Eγ=100MeV, and decreases to 2×10-7 at Eγ=1GeV. For a lead-scintillator sampling calorimeter, the inefficiency is larger than the above values by a factor of 2-3, reflecting the sampling effect after photonuclear reactions. By decreasing the detection threshold down to 1 MeV, the inefficiencies are reduced by a factor of 10 for both types of calorimeters.

Original language	English
Pages (from-to)	263-275
Number of pages	13
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	552
Issue number	3
DOIs	https://doi.org/10.1016/j.nima.2005.06.070
Publication status	Published - Nov 1 2005
Externally published	Yes

Keywords

Electromagnetic calorimeter
Photon detection inefficiency K →πνν̄ decay

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2005.06.070

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Ajimura, S., Arisaka, K., Barrio, M., Fujiwara, T., Hidaka, S., Hotta, T., Hsiung, B., Ikegami, Y., Inagaki, T., Kabe, S., Kessler, R., Kobayashi, S., Kurashige, H., Kurebayashi, K., Matsumura, T., Miyahara, T., Mori, K., Nakagawa, T., Nakamura, T., ... Yamanaka, T. (2005). Measurement of the photon detection inefficiency of electromagnetic calorimeters at energies below 1 GeV. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 552(3), 263-275. https://doi.org/10.1016/j.nima.2005.06.070

Measurement of the photon detection inefficiency of electromagnetic calorimeters at energies below 1 GeV. / Ajimura, S.; Arisaka, K.; Barrio, M.; Fujiwara, T.; Hidaka, S.; Hotta, T.; Hsiung, B.; Ikegami, Y.; Inagaki, T.; Kabe, S.; Kessler, R.; Kobayashi, S.; Kurashige, H.; Kurebayashi, K.; Matsumura, T.; Miyahara, T.; Mori, K.; Nakagawa, T.; Nakamura, T.; Nakano, T.; Nomura, T.; Okuno, H.; Sasao, N.; Sato, T.; Shinkawa, T.; Suzuki, I.; Tripathi, A.; Tsukamoto, T.; Wah, Y.; Watanabe, H.; Winstein, B.; Yamanaka, T.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 552, No. 3, 01.11.2005, p. 263-275.

Research output: Contribution to journal › Article

Ajimura, S, Arisaka, K, Barrio, M, Fujiwara, T, Hidaka, S, Hotta, T, Hsiung, B, Ikegami, Y, Inagaki, T, Kabe, S, Kessler, R, Kobayashi, S, Kurashige, H, Kurebayashi, K, Matsumura, T, Miyahara, T, Mori, K, Nakagawa, T, Nakamura, T, Nakano, T, Nomura, T, Okuno, H, Sasao, N, Sato, T, Shinkawa, T, Suzuki, I, Tripathi, A, Tsukamoto, T, Wah, Y, Watanabe, H, Winstein, B & Yamanaka, T 2005, 'Measurement of the photon detection inefficiency of electromagnetic calorimeters at energies below 1 GeV', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 552, no. 3, pp. 263-275. https://doi.org/10.1016/j.nima.2005.06.070

Ajimura S, Arisaka K, Barrio M, Fujiwara T, Hidaka S, Hotta T et al. Measurement of the photon detection inefficiency of electromagnetic calorimeters at energies below 1 GeV. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2005 Nov 1;552(3):263-275. https://doi.org/10.1016/j.nima.2005.06.070

Ajimura, S. ; Arisaka, K. ; Barrio, M. ; Fujiwara, T. ; Hidaka, S. ; Hotta, T. ; Hsiung, B. ; Ikegami, Y. ; Inagaki, T. ; Kabe, S. ; Kessler, R. ; Kobayashi, S. ; Kurashige, H. ; Kurebayashi, K. ; Matsumura, T. ; Miyahara, T. ; Mori, K. ; Nakagawa, T. ; Nakamura, T. ; Nakano, T. ; Nomura, T. ; Okuno, H. ; Sasao, N. ; Sato, T. ; Shinkawa, T. ; Suzuki, I. ; Tripathi, A. ; Tsukamoto, T. ; Wah, Y. ; Watanabe, H. ; Winstein, B. ; Yamanaka, T. / Measurement of the photon detection inefficiency of electromagnetic calorimeters at energies below 1 GeV. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2005 ; Vol. 552, No. 3. pp. 263-275.

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abstract = "The photon detection inefficiency of electromagnetic calorimeters due to photonuclear reactions has been studied at photon energies below 1 GeV using a tagged-photon beam at the KEK-Tanashi 1.3-GeV electron synchrotron. Photonuclear reactions are identified by detecting low-energy neutrons with liquid scintillation counters surrounding the sample calorimeter. For a Cesium Iodide (CsI) calorimeter with a detection threshold of 10 MeV, the inefficiency due to photonuclear reactions is 10-4 at Eγ=100MeV, and decreases to 2×10-7 at Eγ=1GeV. For a lead-scintillator sampling calorimeter, the inefficiency is larger than the above values by a factor of 2-3, reflecting the sampling effect after photonuclear reactions. By decreasing the detection threshold down to 1 MeV, the inefficiencies are reduced by a factor of 10 for both types of calorimeters.",

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T1 - Measurement of the photon detection inefficiency of electromagnetic calorimeters at energies below 1 GeV

AU - Ajimura, S.

AU - Arisaka, K.

AU - Barrio, M.

AU - Fujiwara, T.

AU - Hidaka, S.

AU - Hotta, T.

AU - Hsiung, B.

AU - Ikegami, Y.

AU - Inagaki, T.

AU - Kabe, S.

AU - Kessler, R.

AU - Kobayashi, S.

AU - Kurashige, H.

AU - Kurebayashi, K.

AU - Matsumura, T.

AU - Miyahara, T.

AU - Mori, K.

AU - Nakagawa, T.

AU - Nakamura, T.

AU - Nakano, T.

AU - Nomura, T.

AU - Okuno, H.

AU - Sasao, N.

AU - Sato, T.

AU - Shinkawa, T.

AU - Suzuki, I.

AU - Tripathi, A.

AU - Tsukamoto, T.

AU - Wah, Y.

AU - Watanabe, H.

AU - Winstein, B.

AU - Yamanaka, T.

PY - 2005/11/1

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