Improvement of density resolution in short-pulse hard x-ray radiographic imaging using detector stacks.
Rev Sci Instrum
; 87(9): 093104, 2016 Sep.
Article
in En
| MEDLINE
| ID: mdl-27782594
ABSTRACT
We demonstrate that stacking several imaging plates (IPs) constitutes an easy method to increase hard x-ray detection efficiency. Used to record x-ray radiographic images produced by an intense-laser driven hard x-ray backlighter source, the IP stacks resulted in a significant improvement of the radiograph density resolution. We attribute this to the higher quantum efficiency of the combined detectors, leading to a reduced photon noise. Electron-photon transport simulations of the interaction processes in the detector reproduce the observed contrast improvement. Increasing the detection efficiency to enhance radiographic imaging capabilities is equally effective as increasing the x-ray source yield, e.g., by a larger drive laser energy.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Rev Sci Instrum
Year:
2016
Document type:
Article
Affiliation country:
Germany