In-orbit calibration of the hard X-ray detector (HXD-II) onboard Suzaku

T. Kitaguchi, M. Kokubun, M. Kawaharada, M. Murashima, R. Miyawaki, T. Yanagida, T. Itoh, S. Hirakuri, T. Enoto, M. Sato, K. Makishima, T. Takahashi, K. Nakazawa, S. Watanabe, T. Tanaka, Y. Terada, T. Tamagawa, A. Kubota, Y. Fukazawa, M. MizunoH. Takahashi, T. Yamasaki, M. Tashiro, Y. Endo, K. Yamaoka, T. Murakami, D. Yonetoku, T. Kamae

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

2 Citations (Scopus)

Abstract

The hard X-ray detector (HXD-II) is one of the scientific payloads onboard Suzaku, the 5th Japanese cosmic X-ray satellite. After the launch in July 2005, all the HXD-II components, including the sensors and analog/digital electronics, have been working normally. In order to archive the maximum performance of the HXD-II, especially the GSO/BGO well-type phoswich counters, extensive in-orbit qualification and calibration have been carried out utilizing the data acquired in early operations. Major items of these efforts include; to estimate the circuit dead time, calibrate energy scale, optimize the event selection criteria for background reduction, study the background, and examine the detector response. As a result of these in-orbit calibrations, the HXD-II background in the 10 ∼ 600 keV range has been successfully lowered to (0.5 - 5.0) × 10-4 c s-1keV-1cm-2. This is the lowest among the background ever achieved in orbit by cosmic hard X-ray detectors.

Original languageEnglish
Title of host publicationHard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII
DOIs
Publication statusPublished - 2006 Nov 13
Externally publishedYes
EventHard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII - San Diego, CA, United States
Duration: 2006 Aug 142006 Aug 17

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6319
ISSN (Print)0277-786X

Conference

ConferenceHard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII
CountryUnited States
CitySan Diego, CA
Period06/8/1406/8/17

Keywords

  • Astronomy satellite
  • Detector
  • Hard X-ray
  • Spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Kitaguchi, T., Kokubun, M., Kawaharada, M., Murashima, M., Miyawaki, R., Yanagida, T., Itoh, T., Hirakuri, S., Enoto, T., Sato, M., Makishima, K., Takahashi, T., Nakazawa, K., Watanabe, S., Tanaka, T., Terada, Y., Tamagawa, T., Kubota, A., Fukazawa, Y., ... Kamae, T. (2006). In-orbit calibration of the hard X-ray detector (HXD-II) onboard Suzaku. In Hard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII [63190U] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6319). https://doi.org/10.1117/12.684267