Speaker
Kaori Hattori
(Kyoto University)
Description
Following the successful astronomical observation by COMPTEL onboard
GRO, a Compton telescope with higher performance is required. With COMP-
TEL a direction of a recoil electron was not measured, so an origin of the
incident photon could only be reconstructed to a cone. Measuring the direc-
tion of recoil electron reduces the Compton cone to a segment of the cone,
and realizes the strong background rejection. To measure the direction of the
recoil electron, we have developed a micro-time pro jection chamber (micro-
TPC) based on a micro-pixel chamber (μ-PIC). The scattered gamma-ray
is measured using 30 cm ×30 cm NaI(Tl) scintillation camera. We developed
a larger size micro-TPC (23 cm ×28 cm×15 cm) than previous prototype (10
cm ×10 cm×10 cm). In this presentation, we are reporting on the fundamental
performances of the MeV gamma-ray camera.
Author
Kaori Hattori
(Kyoto University)
