1993 Fiscal Year Final Research Report Summary

Electron Acceleration by Longitudinal Electric Field of Laser Beam with Large Power

Research Project

Project/Area Number	04650046
Research Category	Grant-in-Aid for General Scientific Research (C)
Allocation Type	Single-year Grants
Research Field	応用物理学一般(含航海学)
Research Institution	Yamanashi University
Principal Investigator	TAKEUCHI Satoshi Yamanashi University, Faculty of Engineering Assisted Professor, 工学部, 助教授 (50115317)
Co-Investigator(Kenkyū-buntansha)	SUGIHARA Ryo Nagoya University, Plasma Science Center Professor, プラズマ科学センター, 教授 (80023711)
Project Period (FY)	1992 – 1993
Keywords	electron-laser beam interaction / longitudinal electric field / electron acceleration / particle acceleration
Research Abstract	It is analytically shown that the longitudinal electric field of a Gaussian laser beam in vacuum accelerates an electron to an ultra-ralativistic energy. The most favorable electron is accelerated in a length of twice the Rayleigh range. It is found that the ultimate energy increment of the electron with a single laser beam is given by the product of transverse field intensity and the beam waist. Also stability of the elctron orbit and the trapping condition are discussed. The gain can be of the order of 100MeV per single stage and then a multi-stage acceleration enables TeV-order-acceleration in a length of a few kilometers with the present state of the art.

(2 results)