Method and apparatus for generating laser plasma x-rays

Details Method and apparatus for generating laser plasma x-rays Method and apparatus for generating laser plasma x-rays

1995-07-28

1997-02-25

Wong, Don

X-ray or gamma ray systems or devices

Source

378122, H01J 3522

Patent

active

056065884

ABSTRACT:
The present invention provides a system and an apparatus to produce x-rays from plasmas by focusing an intense, short duration optical pulse from a laser onto a target. The concentrated energy contained in the focused laser beam ionizes the target material, raising it to a temperature at which ions are produced in a chain reaction ionization, and x-rays are emitted when ions become de-excited (their electrons change energy level) or free electrons recombine with the ions in the plasma. The method comprises controlling pulse time duration of x-rays emitted from a plasma-forming target by generating a beam of one or more laser pulses; adjusting the intensity of the laser pulse to obtain a desired intensity incident at a surface of the plasma-forming target matter; directing the laser pulse onto the surface of the plasma-forming matter to generate the x-rays having a pulse duration which changes in proportion to a change in the incident laser pulse intensity. In one embodiment, the x-rays are then directed onto a sample target.

REFERENCES:
patent: 4866517 (1989-09-01), Mochizuki et al.
patent: 5003543 (1991-03-01), Morsell et al.
patent: 5089711 (1992-02-01), Morsell et al.
patent: 5151928 (1992-09-01), Hirose
patent: 5175757 (1992-12-01), Augustoni et al.
patent: 5235606 (1993-08-01), Mourou et al.
D. Umstadter, J. Workman, A. Maksimchuk, X. Liu, C. Y. Chien, and S. Coe, "Laser-Produced Picosecond Soft X-Ray Continuum Radiation", Proceedings of the International Conference on Lasers '93, 165-170, Aug. 1994.
B. R. Marx, "Terawatt Lasers Generate X-Ray Continuum from Gold Target", Laser Focus World, 15-16, Feb. 1995.

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