Conveners
Space missions - instruments and detectors (1)
- Tsunefumi Mizuno (Hiroshima University)
Dr
Hirokazu Odaka
(ISAS/JAXA)
27/08/2015, 15:50
An astrophysical system harboring a strong gravity star such as a black hole or a neutron star accretes gas from the circumstellar environment, releasing enormous gravitational energy via accretion onto the deep potential. Since a large fraction of the accretion power is released in a form of X-ray radiation, X-ray spectral and temporal information is an important probe to study the energetic...
Kouichi Hagino
(ISAS/JAXA)
27/08/2015, 16:15
The Hard X-ray Imager (HXI) is one of four instruments onboard 6th Japanese X-ray satellite, ASTRO-H, which is scheduled to be launched in FY 2015. Combined with hard X- ray telescopes, the HXI will realize imaging spectroscopy in hard X-ray band ranging from 5 keV to 80 keV with a sensitivity which is two orders of magnitude better than that of Suzaku/HXD. The HXI is composed of a stacked...
Dr
Masanori Ohno
(Hiroshima University)
27/08/2015, 16:40
The Hard X-ray Imager (HXI) and the Soft Gamma-ray Detector (SGD), onboard instruments of Japanese 6th X-ray observatory, ASTRO-H, are
surrounded by the large number of BGO (Bi$_4$Ge$_3$O$_{12}$) scintillators for active shielding. These active shields are very important to reduce the
non X-ray background such as cosmic rays and/or gamma-rays from radioisotopes produced by activation of the...
Takeshi Fujinuma
(Saitama University)
27/08/2015, 17:05
The Wide-band All-sky Monitor (WAM) on board the X-ray astronomical satellite Suzaku consists of four sides of BGO scintillation counters within the Hard X-ray Detector. Thanks to large effective area (800 cm2 at 100 keV) and field of view of ∼ 2π st, the WAM has detected transient objects, such as Gamma-Ray Bursts (GRBs) and Solar flares, approximately 300 event per year. However, the WAM...
