Relativistic electron beam energy deposition in thin gold and aluminum targets

Technical Report · Mon Jan 01 00:00:00 EST 1979

DOI:https://doi.org/10.2172/6412014· OSTI ID:6412014

Burns, E J.T.; Goldstein, S A; Halbleib, J A; Mix, L P; Olsen, J N; Poukey, J W; Quintenz, J P; Widner, M M

Relativistic electron beam (REB) energy deposition in thin gold and aluminum targets has been investigated experimentally using radiation temperature measurements in the soft x-ray, vacuum ultraviolet (XUV) and optical spectral regions on two different particle accelerators. Energy deposition measurements were compared with numerical calculations utilizing particle-in-cell (PIC) diode codes, condensed history Monte-Carlo codes, and coupled radiation-hydrodynamic codes. The specific power deposited (i.e., power deposited/unit mass) was observed to be greater than that due to an average electron making a single pass through a thin target (6.4 ..mu..m thick gold foil on the Hydra accelerator and 38 and 6 ..mu..m thick aluminum foils on the Proto I accelerator). Self-magnetic field effects were primarily responsible for deposition enhancement in 6.4 ..mu..m gold foils on the Hydra accelerator (..nu../..gamma.. approx. = 2.5). Reduction of electron scattering with aluminum foils on Proto I where ..nu../..gamma.. approx. = 1 led to deposition enhancement due to both self electric and magnetic fields.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 6412014
• Report Number(s): SAND-78-2026; TRN: 79-006492
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALUMINIUM
ELECTRON COLLISIONS
ELECTRON BEAMS
SCATTERING
GOLD
COMPUTER CALCULATIONS
ENERGY TRANSFER
FAR ULTRAVIOLET RADIATION
LINEAR ACCELERATORS
MONTE CARLO METHOD
TARGETS
THICKNESS
X-RAY SPECTRA
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BEAMS
COLLISIONS
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ELECTROMAGNETIC RADIATION
ELEMENTS
LEPTON BEAMS
METALS
PARTICLE BEAMS
RADIATIONS
SPECTRA
TRANSITION ELEMENTS
ULTRAVIOLET RADIATION
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