ELECTRON-ENERGY SPECTRAL MEASUREMENTS IN THE LARGE-SLIPPAGE REGIME

Citation
Wa. Gillespie et al., ELECTRON-ENERGY SPECTRAL MEASUREMENTS IN THE LARGE-SLIPPAGE REGIME, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 358(1-3), 1995, pp. 232-235
Citations number
6
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
358
Issue
1-3
Year of publication
1995
Pages
232 - 235
Database
ISI
SICI code
0168-9002(1995)358:1-3<232:ESMITL>2.0.ZU;2-8
Abstract
Time resolved electron spectra have been measured at FELIX while lasin g in the 8-30 mu m range. Over this wavelength range the slippage, giv en by the longitudinal coupling parameter, mu(c) = N lambda/sigma(c), varies considerably (0.5 < mu(c) < 3). Limit-cycle behaviour, previous ly observed in optical spectra [1], is also evident in the electron sp ectra. Efficiencies of up to 1.6% have been measured. In these cases t he output electron energy distribution has a total width of more than 14%! Also presented are measurements of the electron and optical spect ra in the case when the electron energy is swept at a rate of 0.3%/mu s while lasing at 30 mu m.