Journal
LASER AND PARTICLE BEAMS
Volume 2021, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2021/8815697
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Funding
- Russian Foundation for Basic Research [19-38-90001, 19-38-90071]
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The study presents the algorithm and results of calculating the integral and differential energy spectra of a pulsed electron beam generated by direct-action accelerators. Analysis showed that there is a discrepancy in the integrated electron beam energy spectrum when different methods are used to measure the electron spectrum, especially when using the one-dimensional Child-Langmuir ratio.
The algorithm and results of calculating the integral and differential energy spectra of a pulsed electron beam (350-500 keV, 80 ns), generated by direct-action accelerators, are presented. The electron spectrum was calculated using the oscillograms of the accelerating voltage, electron current, total current of the diode, and the one-dimensional Child-Langmuir (1D CL) ratio. It was found that the discrepancy in the integrated electron beam energy spectrum, when measured using the total current in the diode and using the electron beam current, did not exceed 15% for 80%-95% of the electrons generated in a diode with graphite, carbon fabric, and multipoint cathodes. When calculating the electron spectrum using the 1D CL, the error was much higher.
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