Stability and debris in high-brightness liquid-metal-jet-anode microfocus x-ray sources
2007 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 101, no 2, 026102- p.Article in journal (Refereed) Published
We investigate the x-ray spot stability and the debris emission in liquid-metal-jet anode electron-impact x-ray sources operating in the 10-100 W microfocus regime. The x-ray spot size is 15-23 mu m in diameter and the electron-beam power density is up to similar to 210 kW/mm(2), an order of magnitude higher than for conventional microfocus sources. In the power range of the investigation the source is stable in terms of spot size and position. The debris emission rate increases exponentially with the applied electron-beam power but may be reduced by combining larger and faster target jets with smaller e-beam foci and by mitigation schemes. It is concluded that the investigated factors will not limit the performance and function of liquid-metal-jet-anode electron-impact microfocus sources when operating in this high-brightness regime.
Place, publisher, year, edition, pages
2007. Vol. 101, no 2, 026102- p.
Anodes, Electron beams, Light emission, Liquid metals, Debris emission, e-beam foci, Electron-impact, Microfocus x-ray sources
Other Engineering and Technologies
IdentifiersURN: urn:nbn:se:kth:diva-8664DOI: 10.1063/1.2423229ISI: 000243890800173ScopusID: 2-s2.0-33847751834OAI: oai:DiVA.org:kth-8664DiVA: diva2:14045
QC 201009152008-06-042008-06-042010-09-15Bibliographically approved