X-ray source for irradiation of large-area objects

V. K. Petin, S. V. Shljakhtun, V. I. Oreshkin, N. A. Ratakhin

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The results of experiments with a three-ring large-area diode that were conducted on an MIG pulse generator are reported. The MIG generator makes it possible to produce in a matched load electrical pulses up to 2 TW in power with an FWHM of 50-60 ns (1.2-1.4 TW and 80-90 ns in our experiments). In the operating mode of the generator, the current amplitude through the load is 2 MA (the current of a relativistic electron beam) at a diode voltage of ≈ 500 kV. As a load, a large-area vacuum diode with three ring-shaped cathodes is used. It is shown that about 20% of the energy stored in the capacitor bank can be converted to the energy of a relativistic electron beam by matching the output resistance of the MIG generator to the load resistance. When the beam slows down on a condensed foil target, the parameters of the resulting source are the following: the mean energy of X-ray quanta is ≈ 70 keV; irradiated area, 500 cm2; pulse FWHM, 65 ns; energy flux in the spectrum, 2 J/cm 2; and percentage of X-ray radiation (10-100 keV) in the flux, ≈ 50%.

Original languageEnglish
Pages (from-to)776-782
Number of pages7
JournalTechnical Physics
Volume53
Issue number6
DOIs
Publication statusPublished - 1 Jun 2008
Externally publishedYes

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irradiation
generators
relativistic electron beams
diodes
x rays
pulse generators
energy
rings
pulses
foils
capacitors
cathodes
vacuum
output
electric potential
radiation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

X-ray source for irradiation of large-area objects. / Petin, V. K.; Shljakhtun, S. V.; Oreshkin, V. I.; Ratakhin, N. A.

In: Technical Physics, Vol. 53, No. 6, 01.06.2008, p. 776-782.

Research output: Contribution to journalArticle

Petin, V. K. ; Shljakhtun, S. V. ; Oreshkin, V. I. ; Ratakhin, N. A. / X-ray source for irradiation of large-area objects. In: Technical Physics. 2008 ; Vol. 53, No. 6. pp. 776-782.
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