Hard x-ray characterization of the NeXT hard x-ray telescopes at SPring-8

Takuya Miyazawa, Yasushi Ogasaka, Tomonaga Iwahara, Yasufumi Kanou, Naoki Sasaki, Youta Makinae, Shiori Sasaya, Yuuki Inukai, Akihiro Furuzawa, Yoshito Haba, Hideyo Kunieda, Koujun Yamashita, Kentaro Uesugi, Yoshio Suzuki, Keisuke Tamura, Yoshitomo Maeda, Manabu Ishida, Takashi Okajima

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

8 Citations (Scopus)


We present a plan for calibration of the NeXT hard X-ray telescopes (HXT) at the synchrotron radiation facility, SPring-8. In hard X-rays, it is difficult for a laboratory-based beamline using a conventional X-ray source to provide sufficient capabilities for pre-flight high-precision calibration. Therefore, we plan to characterize the NeXT HXT at the SPring-8 beamline BL20B2. SPring-8 is one of the world's third-generation synchrotron radiation facilities. Measurements at BL20B2 have great advantages over those done with conventional sources, such as an extremely high flux, a larger beam with less divergence, and a selectable, narrow bandwidth covering the hard X-ray region from 8 to over 100 keV. The 16m-long experimental hutch has sufficient capability for characterization of the NeXT HXT (FL=12m). In the past, we have measured the Point Spread Function (PSF) and effective area of telescopes for balloon-borne hard X-ray imaging experiments (e.g. InFOCuS, SUMIT) at several energies from 20 to 60 keV. Furthermore, we have successfully established a tuning procedure to improve their image quality. We plan to measure the X-ray characteristics (PSF, effective area, stray light, and so on) of the NeXT HXT to build up the HXT response function.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2008
Subtitle of host publicationUltraviolet to Gamma Ray
ISBN (Print)9780819472212
Publication statusPublished - 2008
Externally publishedYes
EventSpace Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray - Marseille, France
Duration: 23-06-200828-06-2008

Publication series

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


OtherSpace Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray

All Science Journal Classification (ASJC) codes

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


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