Measurements and Calculations of Halfraum Radiation Drives at the Omega Laser

MacLaren, S A; Back, C A; Hammer, J H

doi:10.1016/j.jqsrt.2005.05.032

Measurements and Calculations of Halfraum Radiation Drives at the Omega Laser

Conference · Thu Jan 06 04:00:00 EST 2005

DOI:https://doi.org/10.1016/j.jqsrt.2005.05.032· OSTI ID:917897

MacLaren, S A; Back, C A; Hammer, J H

Thin walled gold halfraums are a common choice for producing x-ray drives in experiments at high-power laser facilities. At the Omega Laser, we use 10 kJ of laser energy in a two-pulse sequence to generate halfraum drive temperatures of 160-190 eV for {approx}3ns. This type of drive is well characterized and reproducible, with characterization of the drive radiation temperature typically performed using the Dante diagnostic. Additionally, calibrated Photoconductive Diamond Detectors (PCDs) are used to measure the drive when it is desirable to utilize the Dante elsewhere in the experiment. Measurements of halfraum drives from both Dante and PCDs are compared with calculations, with good agreement. This agreement lends the calculations a predictive capability in designing further experiments utilizing halfraum drives.

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 917897

Report Number(s):: UCRL-PROC-208917

Country of Publication:: United States

Language:: English

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY
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GOLD
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RADIATIONS

Measurements and Calculations of Halfraum Radiation Drives at the Omega Laser

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