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∘ and 35∘, respectively.
@article{arxiv.astro-ph/0412047,
title = {Development of an advanced Compton camera with gaseous TPC and scintillator},
author = {A. Takada and K. Hattori and H. Kubo and K. Miuchi and T. Nagayoshi and H. Nishimura and Y. Okada and R. Orito and H. Sekiya and A. Takeda and T. Tanimori},
journal= {arXiv preprint arXiv:astro-ph/0412047},
year = {2009}
}
Comments
4 pages, 5 figures. Proceedings of the 6th International Workshop On Radiation Imaging Detectors