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Soft-x-ray generation in a helium environment using laser-produced plasmas

 
: Petzold, H.-C.; Kuehne, M.

:

Optics Letters 9 (1984), No.1, pp.16-18
ISSN: 0146-9592
English
Journal Article
Fraunhofer IFT; 2000 dem IZM eingegliedert
Hochintegration; laser; plasma; Röntgenstrahlen

Abstract
Soft-x-ray radiation was generated by focusing the beam of a Q-switched Nd:glass laser on a steel target in a chamber filled with He at pressures of 10E-5 mbar less or equal than p less or equal than 500 mbar. The radiation at lambda less or equal than 1.5 nm was detected using a P-I-N diode behind a 25-mym Be foil. For He pressures p less 100 mbar and laser pulse energies less or equal than 2J, the soft-x-ray emission of the laser-produced plasma was reduced by less than 10% compared with the emission under high-vacuum conditions. The half-width tau(x-ray) of the soft-x-ray emission time was independent of p and of the same order as the laser pulse half-width tau LASER approximate 17 nsec. (IFT)

: http://publica.fraunhofer.de/documents/PX-34040.html