Radiation Imaging Diagnostic for Plasma Radiation Sources
Abstract
This report describes a two-dimensional, time-resolved, x-ray imaging camera. This camera has a detector face that consists of a pixilated, 6xl2 array of 72, lxlxO.Smm discrete diamond detectors. The camera captured x-ray images of Argon z-pinches produced by the Defense Threat Reduction Agency's Double-EAGLE flash x-ray accelerator, located in San Leandro, CA. The Argon z-pinch was imaged on to this array through a pinhole with a 1:1 magnification. A portion of the pinch that was 6x 1 2rnm in area was imaged on to the camera faceplate, with spatial resolution of 1 rnm. The coverage of the pinch may easily be altered by altering the magnification of the pinhole camera. Magnifications >2:1 further improve the spatial resolution, but at the expense of field of coverage. The temporal resolution of the diamonds is <1 ns. Images of K-shell emission (3.1-4 keV) from Argon z-pinches that were resolved to 400 Ps, show bright spots of emission that wax and wane along the pinch length. This level of imaging detail in such z-pinches is unprecedented. The diamond detectors are sensitive to radiation down to 5 eV, hence by use of suitable filters, the softer, L-shell emissions from the Argon z-pinch (50-800 eV) may also be imaged.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2004
- Accession Number
- ADA423998
Entities
People
- Alexander C. Crisman
- Mahadevan Krishnan
- Niansheng Qi
- Rahul R. Parasad
- Steven Gensler