Temporal evolution of fast electron energy distribution for fast ignition

2014 Fiscal Year Final Research Report

• Project/Area Number: 23360412
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Quantum beam science
• Research Institution: Osaka University
• Principal Investigator: HABARA Hideaki 大阪大学, 工学(系)研究科(研究院), 准教授 (60397734)
• Co-Investigator(Kenkyū-buntansha): YABUUCHI Toshinori 大阪大学, 大学院工学研究科, 助教 (20397772)
• Co-Investigator(Renkei-kenkyūsha): SAKAGAMI Hitoshi 核融合科学研究所, ヘリカル研究部, 教授 (30254452)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: 高強度レーザー / 高速電子 / 高速点火 / チェレンコフ光

Outline of Final Research Achievements

For in-situ measurement of a high-energy electron beam created by ultra intense laser light inside a solid material, Cherenkov emission from the electron beam was investigated using a prism target which can be a spectrometer for the Cherenkov light. Materials with different refractivity were used such as glass (n=1.5), high-refractive glass (n=2.0), and silicon crystal (n=3.5). We successfully obtained the electrons in a broad energy range by extending the observing wavelengths of Cherenkov emissions from visible to middle infrared.

Free Research Field

プラズマ物理