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Proceedings Paper

Generation of picosecond x-ray pulses and their application in time-resolved diffraction
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Paper Abstract

We have constructed a novel picosecond x-ray (PxR) source to be used for time resolved x-ray diffraction. The PxR source has a metallic photocathode from which photoemission is induced by ultraviolet picosecond laser.pulses. Electron bunches of over 3 nC have been produced with a tantalum photocathode excited by a frequency quadrupled pulsed modelocked Nd:YAG laser.The accelerated electron bunches strike a copper anode generating 6.2x106 Cu Ka x-ray photons cm-2.sr-1 with a time width of less than 70 ps. A high energy Nd:YLF regenerative amplified laser was constructed to increase the repetition rate of the source to 2 kHz. Several detection methods and experimental schemes for PxR diffraction are presented

Paper Details

Date Published: 1 May 1990
PDF: 8 pages
Proc. SPIE 1204, Time-Resolved Laser Spectroscopy in Biochemistry II, (1 May 1990); doi: 10.1117/12.17760
Show Author Affiliations
Bruno M. Van Wonterghem, Univ. of California/Irvine (United States)
Peter M. Rentzepis, Univ. of California/Irvine (United States)


Published in SPIE Proceedings Vol. 1204:
Time-Resolved Laser Spectroscopy in Biochemistry II
Joseph R. Lakowicz, Editor(s)

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