Title :
Recent Results from Laser Solid Interaction Experiments using 100 TW Sandia Laser
Author :
King, James A. ; Pasley, John ; Beg, Farhat ; Brambrink, Erik ; Edens, Aaron ; Geissel, Matthias ; Headley, Daniel ; Rambo, Patrick K. ; Schwarz, Jens ; Sinars, Daniel B. ; Stephens, Richard B.
Author_Institution :
California Univ., San Diego
Abstract :
Summary form only given. We present results from experiments performed on 100 TW facility at Sandia National Laboratory. The main goals of the experiment were to quantify the pointing stability, Kalpha spot size and pre-pulse effects of the Z-PW laser. The targets were 25 mum thick Cu foils. The specific diagnostics used include a Cu Kalpha spherical crystal imager which provided information on the shot to shot variations in Kalpha spot intensity and position, an optical probe used for transverse shadowgraphy of pre-pulse plasma formation and radiochromic film RCF stacks to characterize the rear surface proton energy. The Copper Kalpha images show an average spot diameter of ~71plusmn11 mum and a pointing error of les50 mum in both the vertical and horizontal directions. The stacks of RCF showed an average peak proton energy of 7.7plusmn2.4 MeV.
Keywords :
copper; laser beam effects; plasma probes; plasma production by laser; Cu; Cu Kalpha spherical crystal imager; Kalpha spot intensity; Kalpha spot size; Sandia National Laboratory; Sandia laser; Z-PW laser; electron volt energy 7.7 MeV; laser solid interaction; optical probe; pointing stability; power 100 TW; pre-pulse plasma formation; radiochromic film stacks; rear surface proton energy; transverse shadowgraphy; Atom lasers; Contracts; Copper; Laboratories; Laser stability; Optical films; Protons; Solid lasers; US Department of Energy; USA Councils;
Conference_Titel :
Plasma Science, 2007. ICOPS 2007. IEEE 34th International Conference on
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0915-0
DOI :
10.1109/PPPS.2007.4345542
