Investigation of a laser driven vacuum diode X-ray source of photon energy ~5 keV

Autor: KOROBKIN, Yu.V., ROMANOV, I.V., RUPASOV, A.A., FEDIN, D.A., SHIKANOV, A.S., MOORTI, A., RAGHURAMIAH, M., UPADHYAY, J., KUMBHARE, S.R., SAILAJA, S., ARORA, V., NAIK, P.A., GUPTA, P.D.
Zdroj: Laser and Particle Beams; July 1999, Vol. 17 Issue: 3 p499-507, 9p
Abstrakt: An investigation of a monochromatic point X-ray source of photon energy ~5 keV was carried out. The source was set up using a laser produced Al plasma as a cathode and a point-tip Ti anode. Optimum parameters of the diode were determined from experimental measurements of X-ray intensity dependence on laser pulse energy, applied accelerating voltage, and distance between target (cathode) and anode, using Nd:glass laser pulses (FWHM 30 ns) of 2 mJ to 4 J energy. Electron temperature characterization of the target plasma was also performed from the XUV emission spectrum (5–80 Å). Parameters of X radiation in Ti K-shells are (1) spectral brightness of ~1020 photons/cm2-sec-sr-keV, (2) spatial size ~300 microns, and (3) X-ray pulse duration less than 20 ns.
Databáze: Supplemental Index