Lichtinduzierte Roentgenstrahlquellen fuer Photonenenergien um 600 Elektronenvolt Abschlussbericht

Laser generated plasmas emit electromagnetic radiation. Choosing appropriate laser and target parameters, the maximum emission can be placed in the soft X-ray region. In order to develop powerful laboratory X-ray sources utilizing laser generated plasmas, the characterisation of their spectral emission is desired. To be able to do so, X-ray spectrographs have been set up in the frame of this research project, based on novel, especially developed X-ray optics, so called Off-Axis Reflection zone plates (ORZs). Several ORZs have been manufactured using the electron beam lithography system that has been purchased from funds of this projects. Calibration of all components of the spectrograph allows for absolute measurements of the plasma emission. In collaboration with different domestic and foreign research groups laser produced plasma sources with various parameter configurations (laser wavelength, pulse duration, pulse energy, target intensity, target material, state of matter) in the spectral range #propor to#300-900 eV have been investigated. The results show on one hand, that laser generated plasma sources are well suited as X-ray sources in the spectral region around 600 eV and give, on the other hand, important impact for optimisation and further development. (orig.)SIGLEAvailable from TIB Hannover: F98B1983+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman