Imaging Detectors for 20-100 ke V X-ray Backlighters in HEDES Petawatt Experiments

Conference · Fri Apr 16 04:00:00 EDT 2004

OSTI ID:15014126

Wickersham, J E; Park, H; Bell, P M; Koch, J A; Landen, O L; Moody, J D

We are developing a petawatt laser for use as a high energy backlighter source in the 20{approx} 100 keV range. High energy x-ray backlighters will be essential for radiographing High-Energy- Density Experimental Science (HEDES) targets for NIF projects especially to probe implosions and high areal density planar samples. For these experiments we are employing two types of detectors: a columnar grown CsI scintillator coupled to a 2K x 2K CCD camera and a CdTe crystal with a special ASIC readout electronics in a 508 x 512 format array. We have characterized these sensors using radioactive sources. In addition, we utilized them to measure the Sm K{alpha} source size generated by the short pulse laser, JanUSP, at LLNL. This paper will present the results of our characterizations of these detectors.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15014126
• Report Number(s): UCRL-CONF-203625
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
CAMERAS
IMPLOSIONS
KEV RANGE
LASERS
LAWRENCE LIVERMORE NATIONAL LABORATORY
PETAWATT POWER RANGE
PLASMA DIAGNOSTICS
PROBES
TARGETS
US NATIONAL IGNITION FACILITY