Microfocus Bremsstrahlung Source Based on a Narrow Internal Target of a Betatron

M. M. Rychkov, V. V. Kaplin, E. L. Malikov, V. A. Smolyanskii, V. Gentsel’man, I. K. Vas’kovskii

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The paper addresses the research into the properties of bremsstrahlung generated by interaction of the internal electron beam of the 18 MeV betatron with narrow targets, 50 and 8μm thick Si crystals and 13μm thick Ta foil with a length of 4 mm along the electron beam, mounted in the goniometer inside the betatron chamber. The radiation beams generated in the targets were used to obtain the images of a microstructure of thin wire pairs and an object that consisted of four steel bars with 10μm gaps between them. The images indicate high absorption contrast of their components due to a small horizontal size of the radiation source the width of which in the cases of Si crystals and Ta foil was 30-, 187- and 115-fold smaller than the diameter of the electron beam, respectively. The edge phase-contrast was also observed due to high spatial coherency of the radiation with the linear microfocus generated in the source based on the B-18 betatron with a narrow target inside.

Original languageEnglish
Article number13
JournalJournal of Nondestructive Evaluation
Volume37
Issue number1
DOIs
Publication statusPublished - 1 Mar 2018

Fingerprint

Betatrons
Electron beams
Radiation
Metal foil
Goniometers
Crystals
Beam plasma interactions
Wire
Microstructure
Steel

Keywords

  • Angular distributions
  • Betatron
  • Bremsstrahlung X- and gamma-rays
  • Internal beam
  • Microstructure images
  • Narrow target
  • Phase-contrast

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Microfocus Bremsstrahlung Source Based on a Narrow Internal Target of a Betatron. / Rychkov, M. M.; Kaplin, V. V.; Malikov, E. L.; Smolyanskii, V. A.; Gentsel’man, V.; Vas’kovskii, I. K.

In: Journal of Nondestructive Evaluation, Vol. 37, No. 1, 13, 01.03.2018.

Research output: Contribution to journalArticle

Rychkov, M. M. ; Kaplin, V. V. ; Malikov, E. L. ; Smolyanskii, V. A. ; Gentsel’man, V. ; Vas’kovskii, I. K. / Microfocus Bremsstrahlung Source Based on a Narrow Internal Target of a Betatron. In: Journal of Nondestructive Evaluation. 2018 ; Vol. 37, No. 1.
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