Compact hard x-ray imaging system with a large FOV

Miho Katsuragawa; Shin'ichiro Takeda; Goro Sato; Atsushi Harayama; Patrick Kenneth Kennedy; Kieran Deasy; Shin Watanabe; Tadayuki Takahashi

doi:10.1117/12.2240497

27 July 2016 Compact hard x-ray imaging system with a large FOV

Miho Katsuragawa, Shin'ichiro Takeda, Goro Sato, Atsushi Harayama, Patrick Kenneth Kennedy, Kieran Deasy, Shin Watanabe, Tadayuki Takahashi

Author Affiliations +

Proceedings Volume 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray; 99055C (2016) https://doi.org/10.1117/12.2240497
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

We have developed a compact hard X-ray imaging system composed of a cadmium telluride double-sided strip detector (CdTe-DSD) and a coded mask. We investigate the imaging performance using two different coded masks with different sizes and patterns. In our system, a CdTe-DSD of pitch 250μm is used in conjunction with a coded mask is placed 70-100 mm above the detector to form a compact imaging system. We obtained an angular resolution of up to 11.8 arc min, as measured from gamma-ray lines of point-like radioactive isotope sources. This is consistent with that expected from the geometry. The energy resolution is 1.7 keV (FWHM) at 60 keV and the energy range of imaging is from 5 keV to 122 keV. These results agree very well with Monte Carlo simulations of the detector.

Citation Download Citation

Miho Katsuragawa, Shin'ichiro Takeda, Goro Sato, Atsushi Harayama, Patrick Kenneth Kennedy, Kieran Deasy, Shin Watanabe, and Tadayuki Takahashi "Compact hard x-ray imaging system with a large FOV", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99055C (27 July 2016); https://doi.org/10.1117/12.2240497

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