Neutron irradiation test of the fine pixel CCD vertex detector for the ILC

Akimasa Ishikawa, Shunsuke Murai, Shuhei Ito, Abhinav Dubey, Tomohiro Horiguchi, Eriko Kato, Jan Strube, Itaru Ushiki, Shun Watanuki, Shinjiro Yamaguchi, Hitoshi Yamamoto, Constantino Calancha, Akiya Miyamoto, Yasuhiro Sugimoto, Yoshiji Yasu, Hirokazu Ikeda, Hisao Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The Fine Pixel CCD (FPCCD) is one of the candidate vertex detectors for the ILC. We performed neutron irradiation test of the FPCCD with CYRIC proton beam line at Tohoku University. After the irradiation of 19-year neutron fluence at the 500 GeV high luminosity ILC, the performance of the FPCCD was tested. The dark current increased but was still three order of magnitude smaller than signal charge. The fraction of hot pixels increased to 1.2 × 10-5 which is enough small for operation. Charge transfer inefficiencies for horizontal and vertical directions were measured to be 3.49 × 10-5 and 6.34 × 10-5, respectively. Even for the farthest pixel from a readout channel, 63% of signal remains after the transfer. We conclude that neutron fluence at the 500 GeV high luminosity ILC is not a problem for the FPCCD.

Original languageEnglish
Title of host publication2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467398626
DOIs
Publication statusPublished - 2016 Oct 3
Event2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015 - San Diego, United States
Duration: 2015 Oct 312015 Nov 7

Publication series

Name2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015

Other

Other2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015
CountryUnited States
CitySan Diego
Period15/10/3115/11/7

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging
  • Instrumentation

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    Ishikawa, A., Murai, S., Ito, S., Dubey, A., Horiguchi, T., Kato, E., Strube, J., Ushiki, I., Watanuki, S., Yamaguchi, S., Yamamoto, H., Calancha, C., Miyamoto, A., Sugimoto, Y., Yasu, Y., Ikeda, H., & Sato, H. (2016). Neutron irradiation test of the fine pixel CCD vertex detector for the ILC. In 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015 [7581945] (2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSSMIC.2015.7581945