Energy resolution of a segmented silicon strip detector for photon-counting spectral CT
2013 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, Vol. 715, 11-17 p.Article in journal (Refereed) Published
We investigated the energy resolution of a segmented silicon strip detector for photon-counting spectral computed tomography (CT). The detector response to different monochromatic photon energies and various photon fluxes was characterized at the Elettra synchrotron. An RMS energy resolution of 1.50 keV has been demonstrated for 22 keV photons at zero flux, and it deteriorated as a function of input count rate at a rate of 5.13 eV mm2 /Mcps. The charge sharing effect has been evaluated. The results show that around 11.1% of the interacting photons experience charge sharing for 22 keV photons and 15.3% for 30 keV.
Place, publisher, year, edition, pages
2013. Vol. 715, 11-17 p.
Photon counting, silicon strip detector, spectral computed tomography, energy resolution, synchrotron
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-105613DOI: 10.1016/j.nima.2013.02.030ISI: 000319252300002ScopusID: 2-s2.0-84876258566OAI: oai:DiVA.org:kth-105613DiVA: diva2:571535
Updated from "Submitted" to "Published" QC 201307102012-11-222012-11-222015-04-30Bibliographically approved