Open AccessENERGY CONVERSION OF FREE ELECTRON LASER
Author(s) -
Zhu Jia-qing
Publication year - 1996
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.45.52
Subject(s) - physics , electron , atomic physics , photon , photon energy , energy conversion efficiency , laser , energy transformation , energy (signal processing) , nuclear physics , optics , quantum mechanics , optoelectronics
According to the Weizsacker-Williams approximation, FEL Is simulated by collision between the relativistic electron and the pseudophoton, and the photon is scattered by the electron. According to this physical model, we studied the energy conversion between the electron and the photon, and obtained the relation between the energy of scattered photon and the energy of photon before collision:εp=4γ2εp(0). Increase of the energy of the scattered photon is at the price of the energy that the electron consumes. We calculated the scale of the energy conversion. In FEL, the maximum energy conversion efficiency is 50 %.