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Calibration and characterization of single photon counting cameras for short-pulse laser experimentsa)
a)Contributed paper, published as part of the Proceedings of the 17th Topical Conference on High-Temperature Plasma Diagnostics, Albuquerque, New Mexico, May 2008.
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View: Figures


Image of FIG. 1.
FIG. 1.

Standard and single pixel event histogram results from an ideal single hit exposure using . (Inset) Image crop showing the three types of photon events: (1) single pixel events, (2) split pixel events where the x-ray interacted near a pixel boundary, and (3) blobs where the x-ray interacted in a field-free region producing a fuzzy spot. A broad sloping background is seen in the standard histogram due to the split and blob x-ray events.

Image of FIG. 2.
FIG. 2.

Efficiency results at 5.899 keV (a) and 22.162 keV (b) for SI800-104 (open) and Si116 (solid) using the standard histogram method (squares) and the single pixel event method (triangles).

Image of FIG. 3.
FIG. 3.

Extrapolation of the efficiency results at 5.899 to 30 keV (solid line). Open squares show the experimental data. Dotted vertical lines show the energies of various common laser targets.

Image of FIG. 4.
FIG. 4.

Results of exposures with the custom thick CCD using two different histogram methods. Only the blob summing algorithm which sums arbitrarily shaped connected pixel regions was able to reconstruct the 59.54 keV peak, using a maximum of 50 connected pixels, on the custom SI800 camera. Similar results were obtained using the PI-LCX1300 camera with only five connected pixels.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Calibration and characterization of single photon counting cameras for short-pulse laser experimentsa)