Journal article
A high-spatial-resolution three-dimensional detector array for 30-200 keV X-rays based on structured scintillators
Metal Structures in Four Dimensions, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
A three-dimensional X-ray detector for imaging 30-200 keV photons is described. It comprises a set of semi-transparent structured scintillators, where each scintillator is a regular array of waveguides in silicon, and with pores filled with CsI. The performance of the detector is described theoretically and explored in detail through simulations.
Based on available hardware, a spatial resolution of 1 mm is obtainable. The resolution of a single screen is shown to be determined only by the pitch, at least up to 100 keV. In comparison with conventional homogeneous screens, an improvement in efficiency by a factor of 5-15 is obtainable. The cross-talk between screens in the three-dimensional detector is shown to be negligible.
The three-dimensional concept enables ray-tracing and super-resolution algorithms to be applied.
Language: | English |
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Year: | 2008 |
Pages: | 363-370 |
ISSN: | 16005775 and 09090495 |
Types: | Journal article |
DOI: | 10.1107/S0909049508011370 |
ORCIDs: | Olsen, Ulrik Lund , Schmidt, Søren and Poulsen, Henning Friis |