Bayou I an.d II 3:OO p.m. Tuesday, June 6, 2000

ORAL :SESSION 4C X-Ray spectromicroscopy investigations of fast ions and hot SPHERICAL CONFIGURATIONS

electrons in plasmas, heated by nanosecond laser radiation with different wavelengths.

AYa. F‘aenov’, I. Yu. Skobelev’, A.{. Magunov’, T A . Pik-uz’*. F.B. Rosmqi’, D.H.H. Ho&ann2. W. Sup, M. GeiJe?, R Bock‘, T. Letardi’, t;. Flord , S.Bollanti’, P.Di k z a r o ’ , Yu. A. Sutov6,

Yu.B.Smakovskif@ A.E.Stepanov6, K K.Roerich‘, S. lXhomenko7, S. Nischuk6, K.h!Makarov‘, A. Reale7, A. Scajatri’, Z Augustea.

i? d’ Oliveiraa0 S. Huh’, P. Mono( B. Yu. Sharkov’ ‘Multicharged Ions Spectra Data Center of VNIIFRI, Mendeleevo,

141570 Russia ’Technische Universit&t Darmstadt, Institut fur Kernphysik, Abt.

Strahlen- und Kemphysik, SchloBgartenstr. 9, D-64289 Darmstadt, Germany

3Technische Universitiit Darmstadt, Institut fur Angewandte Physik, Sch1oBgartenst.r. 7, D-64289 Darmstadt, Germany

4Gesellschaft fur Schwerionenforschung, Institute for Plasmaphysics, Planckstr. 1, D-64291 Darmstadt, Germany

’Dipartamento Innovazione, CRE ENEA, 00044, Frascati, Italy 6Troitsk Institute of Innovative and Thermonuclear Research

(TRIMTI), 142092 Moscow, Russia ’Dipartamento di Fisika e P E N g.e. LNGS, Universita dell L’

Aquila, Italy ‘Commissariat a 1’Energie Atomique, Centre D’Etudes de Saclay, DRECAh4, Service de Photons Atomes et Molecules, Bat.522,

91 191 Gif-sur-Yvette, France ’ 1n:jtitute of Experimental and Theoretical Physics, 117257 Moscow, Russia

Chair: J. Reece Roth university ,,f T~~~~~~~~

!By means of space resolved X-ray spectroscopy we have investigated the generation of fast (up to MeV) ions for various laser installations with different flux densities (IO” W/cm*) and laser wavelengths (k=308 nm, 800 nm,1.06 pm, 10.6 km ). The implementation of our spectroscopically determined data into the generally accepted scaling relation diagrams with the axes qhz and Eion, where q is the laser flux density, li the laser wavelength and Eion the fast ion energy showed a large scatter by orders of magnitude. The simultaneous use of mass spectrometry showed reasonable agreement for both methods of measurements. Non- Maxwellian X-ray spectroscopy enabled us for the first time to investigate the generation of fast ions and hot electrons by means of space resolved spectroscopy in plasma areas, where the interaction with the laser beam takes place.

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