Absolute Calibration of Imaging Plate for Electron Spectrometer measuring GeV-class electrons.

POSTER

Abstract

An electron spectrometer (ESM) is designed and tested to measure high-energy electrons generated from ultra-intense laser plasma interactions. In this ESM, Fuji film imaging plate (IP) is often used as a detector for avoiding the influence by a strong electromagnetic noise. In previous study, IP was calibrated for electron up to 100-MeV in order to obtained absolute number of high-energetic electron. However, in more recent laser acceleration study 1-GeV monoenergetic electron beam was produced. Therefore, we performed the absolute calibration of IP for 1-GeV electrons experimentally at SPring-8. The 1-GeV electron beam was generated from Linac for injection to the storage ring at SPring-8. In the result, it has been proved that IP has sufficient sensitivity for 1-GeV electrons and the absolute sensitivity curve for electrons up to 1 GeV was obtained.

Authors

  • Nobuhiko Nakanii

  • Kiminori Kondo

  • Toshinori Yabuuchi

  • Kazuki Tsuji

  • Kazuo Tanaka

    • Institute of Laser Engineering, Osaka University

  • Shinsuke Suzuki

  • Takao Asaka

  • Kenichi Yanagida

  • Hirohumi Hanaki

    • Japan Synchrotron Radiation Research Institute/SPring-8

  • Takashi Kobayashi

  • Kazuhiro Makino

  • Takahisa Yamane

    • Fuji Film Co., Ltd