Accession Number:

ADA089765

Title:

'Exact' Low Gain Formulation of the Free Electron Laser-Including Transverse Velocity Spread and Wiggler Incoherence

Descriptive Note:

Memorandum rept.

Corporate Author:

JAYCOR ALEXANDRIA VA

Personal Author(s):

Report Date:

1980-09-15

Pagination or Media Count:

26.0

Abstract:

It is shown that in the small signal-low gain regime, an analytic expression for the gain can be derived, which is correct for general electron distribution function and general longitudinal variation of the transverse magnetic field pump. This expression is used to evaluate the effects on the gain curve due to transverse momentum spread in the beam as well as the inaccuracies incoherence in the magnetic pump phase and amplitude. The restricting criteria for the neglect of these effects are derived.

Subject Categories:

  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE