Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-12-02
Nucl.Instrum.Meth. A546 (2005) 258-262
Astronomy and Astrophysics
Astrophysics
4 pages, 5 figures. Proceedings of the 6th International Workshop On Radiation Imaging Detectors
Scientific paper
10.1016/j.nima.2005.03.050
A prototype of the MeV gamma-ray imaging camera based on the full reconstruction of the Compton process has been developed. This camera consists of a micro-TPC that is a gaseous Time Projection Chamber (TPC) and scintillation cameras. With the information of the recoil electrons and the scattered gamma-rays, this camera detects the energy and incident direction of each incident gamma-ray. We developed a prototype of the MeV gamma-ray camera with a micro-TPC and a NaI(Tl) scintillator, and succeeded in reconstructing the gamma-rays from 0.3 MeV to 1.3 MeV. Measured angular resolutions of ARM (Angular Resolution Measure) and SPD (Scatter Plane Deviation) for 356 keV gamma-rays were $18^\circ$ and $35^\circ$, respectively.
Hattori Kota
Kubo Harunobu
Miuchi Kentaro
Nagayoshi Tsutomu
Nishimura Harumichi
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