Generation of multi-keV monochromatic twin x-ray point sources based on laser-driven vacuum diode
Journal Article
·
· Review of Scientific Instruments
- Laser Plasma Division, Centre for Advanced Technology, Indore 452013 (India)
A simple method of generating multi-keV, monochromatic, twin x-ray point sources based on laser-driven vacuum diode is presented. Electrons from a laser-produced aluminum plasma cathode were accelerated towards two point-tip titanium anodes placed symmetrically with respect to the cathode. Temporal and spatial characterizations of the K-shell x-ray emission from the twin anodes are carried out. Each source ({approx}300 {mu}m diameter) emits {approx}10{sup 9} Ti K{alpha} (h{nu}{approx_equal}4.51 keV) photons in a pulse of {approx}20 ns duration with a peak brightness of {approx}4x10{sup 18} photons/cm{sup 2} s sr. Single-shot twin x-ray shadowgrams of physical objects were recorded at a distance of several centimeters from the two sources. Such a system may be useful for single-shot stereoradiography for differential imaging in the multi-keV energy region.
- OSTI ID:
- 20723185
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 76; ISSN 0034-6748; ISSN RSINAK
- Country of Publication:
- United States
- Language:
- English
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