X-ray diagnostics of runaway electrons generated during nanosecond discharge in gas at elevated pressures

Journal Article · Mon Jan 09 04:00:00 EST 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3675462· OSTI ID:22025406

Yatom, S; Levko, D; Gleizer, J Z; Vekselman, V; Krasik, Ya E ^[1]

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1. Physics Department, Technion, Haifa 32000 (Israel)

The properties of high-energy runaway electrons generated during a nanosecond discharge in an air filled diode at pressures up to 3 x 10{sup 5} Pa were studied using x-ray absorption spectroscopy. The results of studies of the discharge at different pressures and with different lengths of cathode-anode gap allow an insight into the factors that influence the energy distribution of runaway electrons. Energy distribution functions for runaway electrons produced in particle-in-cell simulation were used to create the x-ray attenuation curves via a computer-assisted technique simulating the generation of x-ray by energetic electrons. The simulated attenuation curves were compared to experimental results.

• OSTI ID: 22025406
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 2 Vol. 100; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTROSCOPY
ANODES
ATTENUATION
CATHODES
COMPUTERIZED SIMULATION
DISTRIBUTION FUNCTIONS
ELECTRIC DISCHARGES
ENERGY SPECTRA
LENGTH
PLASMA
PLASMA DIAGNOSTICS
PLASMA PRESSURE
PLASMA SIMULATION
RUNAWAY ELECTRONS
TAIL ELECTRONS
THERMIONIC DIODES
X RADIATION
X-RAY SPECTROSCOPY