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

S. Yatom, D. Levko, J. Z. Gleizer, V. Vekselman, Ya E. Krasik

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20 Scopus citations

Abstract

The properties of high-energy runaway electrons generated during a nanosecond discharge in an air filled diode at pressures up to 3 × 10 5Pa 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.

Original languageEnglish (US)
Article number024101
JournalApplied Physics Letters
Volume100
Issue number2
DOIs
StatePublished - Jan 9 2012
Externally publishedYes

Bibliographical note

Funding Information:
This work was partly supported by Lady Davis foundation.

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