Abstract
The hard X-ray imager (HXI) is the focal plane detector onboard ASTRO-H to be launched in 2014. By combining with the hard X-ray telescope, the HXI will realize the focusing imaging in the energy range from 5 up to 80 keV. The sensitivity of the HXI for an isolated point source will be two orders of magnitude better compared with previous missions. The hybrid structure composed of four layers of double-sided silicon strip detectors (DSSD) and one layer of cadmium telluride double-sided strip detector (CdTe-DSD) enables high detection efficiency in the hard X-ray band. The DSSD and CdTe-DSD for ASTRO-H have been developed, and their spectral and imaging performances were evaluated. By using two-strip events for the reconstructions of spectra and images, energy resolution of 1.0 keV at 13.9 keV and 2.0 keV at 59.5 keV, and sub-strip spatial resolution were achieved.
| Original language | English |
|---|---|
| Title of host publication | AIP Conference Proceedings |
| Pages | 809-812 |
| Number of pages | 4 |
| Volume | 1505 |
| DOIs | |
| Publication status | Published - 2012 |
| Event | 5th International Meeting on High Energy Gamma-Ray Astronomy - Heidelberg Duration: 2012 Jul 9 → 2012 Jul 13 |
Other
| Other | 5th International Meeting on High Energy Gamma-Ray Astronomy |
|---|---|
| City | Heidelberg |
| Period | 12/7/9 → 12/7/13 |
Keywords
- ASTRO-H mission
- Double-sided strip detector
- Hard X-ray Imager
- Si/CdTe detector
- X-ray/gamma-ray astrophysics
ASJC Scopus subject areas
- Physics and Astronomy(all)