Development of a Time-resolved Soft X-ray Spectrometer for Laser Produced Plasma Experiments
A 2400 line/mm variable spaced grating spectrometer (VSG) has been used to measure soft x-ray emission (8-22 {angstrom}) from laser-produced plasma experiments at Lawrence Livermore National Laboratory's Compact Multipulse Terrawatt (COMET) Laser Facility. The spectrometer was coupled to a Kentech x-ray streak camera to study the temporal evolution of soft x-rays emitted from the back of mylar and copper foils irradiated at 10{sup 15} W/cm{sup 2}. The instrument demonstrated a resolving power of {approx} 120 at 19 {angstrom} with a time resolution of 31 ps. The time-resolved copper emission spectrum was consistent with a photodiode monitoring the laser temporal pulse shape and indicated that the soft x-ray emission follows the laser heating of the target. The time and spectral resolution of this diagnostic make it useful for studies of high temperature plasmas.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 1009648
- Report Number(s):
- LLNL-CONF-431867; TRN: US1101763
- Resource Relation:
- Journal Volume: 81; Journal Issue: 10; Conference: Presented at: High Temperature Plasma Diagnostics 2010, Wildwood, NJ, United States, May 16 - May 20, 2010
- Country of Publication:
- United States
- Language:
- English
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Time-resolved soft x-ray spectra from laser-produced Cu plasma
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