Measurements of radiation near an atomic spectral line from the interaction of a 30 GeV electron beam and a long plasma

Journal Article · Tue Oct 31 00:00:00 EST 2000 · Physical Review E

OSTI ID:815310

Catravas, P E; Chattopadhyay, S; Esarey, E; Leemans, W P; Assmann, R; Decker, F -J; Hogan, M J; Iverson, R; Siemann, R H; Walz, D; Whittum, D; Blue, B; Clayton, C; Joshi, C; Marsh, K A; Mori, W B; Wang, S; Katsouleas, T; Lee, S; Muggli, P

Emissions produced or initiated by a 30 GeV electron beam propagating through a {approx} 1 m long heat pipe oven containing neutral and partially ionized vapor have been measured near atomic spectral lines in a beam-plasma wakefield experiment. The Cerenkov spatial profile has been studied as a function of oven temperature and pressure, observation wavelength, and ionizing laser intensity and delay. The Cerenkov peak angle is affected by the creating of plasma, and estimates of neutral and plasma density have been extracted. Increases in visible background radiation, consistent with increased plasma recombination emissions due to dissipation of wakefields, were simultaneously measured.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 815310
• Report Number(s): LBNL-47548; CBP Note-371, LOL Note-074; R&D Project: 455401; TRN: US0304589
• Journal Information: Physical Review E, Vol. 46; Other Information: Journal Publication Date: 2001; PBD: 31 Oct 2000
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BACKGROUND RADIATION
ELECTRON BEAMS
HEAT PIPES
LASERS
OVENS
PLASMA
PLASMA DENSITY
RADIATIONS
RECOMBINATION
ELECTRON BEAM PLASMA WAKEFIELD CERENKOV RADIATION