X-ray grating interferometry with a liquid-metal-jet source

Journal Article · Mon Aug 26 00:00:00 EDT 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4819766· OSTI ID:22218140

Thüring, T.; Rutishauser, S.; Stampanoni, M. ^[1]; Zhou, T.; Lundström, U.; Burvall, A.; Hertz, H. M. ^[2]; David, C. ^[1]

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1. Paul Scherrer Institute, Villigen PSI (Switzerland)
2. Biomedical and X-Ray Physics, KTH Royal Institute of Technology, Albanova, SE-10691 Stockholm (Sweden)

A liquid-metal-jet X-ray tube is used in an X-ray phase-contrast microscope based on a Talbot type grating interferometer. With a focal spot size in the range of a few microns and a photon flux of ∼10{sup 12} photons/s×sr, the brightness of such a source is approximately one order of magnitude higher than for a conventional microfocus source. For comparison, a standard microfocus source was used with the same grating interferometer, showing significantly increased visibility for the liquid-metal-jet arrangement. Together with the increased flux, this results in improved signal-to-noise ratio.

• OSTI ID: 22218140
• Journal Information: Applied Physics Letters, Vol. 103, Issue 9; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
APPROXIMATIONS
BRIGHTNESS
COMPARATIVE EVALUATIONS
DIFFRACTION GRATINGS
INTERFEROMETERS
INTERFEROMETRY
JETS
LIQUID METALS
MICROSCOPES
MICROSCOPY
PHOTONS
SIGNAL-TO-NOISE RATIO
VISIBILITY
VISIBLE RADIATION
X RADIATION
X-RAY TUBES