Development of CALET for the observation of cosmic-ray electron and positron

2015 Fiscal Year Final Research Report

• Project/Area Number: 24740191
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Kanagawa University (2015); Japan Aerospace Exploration Agency (2012-2014)
• Principal Investigator: Shimizu Yuki 神奈川大学, 工学部, 准教授 (60434320)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 宇宙線 / 電子

Outline of Final Research Achievements

The calorimetric electron telescope (CALET) is a space-based observatory of high energy cosmic rays on the international space station. The detector have been developed and currently placed on the exporsure facility of KIBO Japanese experiment module. We have measured the characteristics of detector elements such as scintillators, photo-detectors and readout electronics. In addition, calibration of the detector flight model with a UV pulsed laser system has been conducted. After launching in August 2015, high energy cosmic rays have been observed during the initial operation of the CALET. Analyzing the observed data, we have obtained primary electron candidate events including a few events above 1TeV.

Free Research Field

宇宙線物理