A 9 keV electron-impact liquid-gallium-jet x-ray source.
We demonstrate a high-brightness compact 9 keV electron-impact microfocus x-ray source based on a liquid-gallium-jet anode. A approximately 30 W, 50 kV electron gun is focused onto the approximately 20 ms, 30 mum diameter liquid-gallium-jet anode to produce an approximately 10 microm full width at half maximum x-ray spot. The peak spectral brightness is >2 x 10(10) photons(s mm(2) mrad(2)x0.1% BW). Calculation and experiments show potential for increasing this brightness by approximately three orders of magnitude, making the source suitable for laboratory-scale x-ray crystallography and hard x-ray microscopy.
Otendal
M
M
Biomedical and X-Ray Physics, Department of Applied Physics, Royal Institute of Technology/Albanova, SE-10691 Stockholm, Sweden. mikael.otenda@biox.kth.se
Tuohimaa
T
T
Vogt
U
U
Hertz
H M
HM
D004583:Electrons; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005708:Gallium / Q000528:radiation effects*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012996:Solutions; D017356:Synchrotrons / Q000295:instrumentation*; D014965:X-Rays
D012996:Solutions; D005708:Gallium