2006/11/07 by M. Kokubun, K. Makishima, T. Murakami +52 · 1 citation
Physics and Astronomy · #astro-ph
paper · pdf · doi:10.1093/pasj/59.sp1.s53
published as Publ.Astron.Soc.Jap.59:53-76,2007 · 45 pages, 40 figures and 9 tables; accepted for Pulications of the Astronomical Society of Japan
arxiv created 2006/11/07 · arxiv updated 2015/06/24
The in-orbit performance and calibration of the Hard X-ray Detector (HXD) on board the X-ray astronomy satellite Suzaku are described. Its basic performances, including a wide energy bandpass of 10-600 keV, energy resolutions of ~4 keV (FWHM) at 40 keV and ~11% at 511 keV, and a high background rejection efficiency, have been confirmed by extensive in-orbit calibrations. The long-term gains of PIN-Si diodes have been stable within 1% for half a year, and those of scintillators have decreased by 5-20%. The residual non-X-ray background of the HXD is the lowest among past non-imaging hard X-ray instruments in energy ranges of 15-70 and 150-500 keV. We provide accurate calibrations of energy responses, angular responses, timing accuracy of the HXD, and relative normalizations to the X-ray CCD cameras using multiple observations of the Crab Nebula.