Matches in SemOpenAlex for { <https://semopenalex.org/work/W1575176265> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W1575176265 abstract "The development of scintillator detectors made of dense ionic crystals with high light output and fast response times offers to improve radiation detection systems commonly employed in medical imaging. Three such cerium doped materials, rubidium gadolinium bromide (RbGd/sub 2/Br/sub 7/:Ce), lanthanum chloride (LaCl/sub 3/:Ce), and lanthanum bromide (LaBr/sub 3/:Ce) show promise as bright, fast scintillators with good energy resolution for gamma rays. To be useful as gamma-ray detectors for positron emission tomography (PET) and single photon emission computed tomography (SPECT) applications, the signal from these scintillators should have a linear energy response. To be useful as x-ray detectors in computed tomography (CT) applications, the output of these scintillators must be linear over a wide range of flux rates. We have therefor measured the response of these scintillators to different energy gamma-rays with a detector operated in pulse counting mode. We have also measured the range of linear response to diagnostic x-rays, of these materials, with a detector operated in current mode with a sigma-delta analog to digital converter (ADC). We find a linear energy response for all three materials from 60 keV to 662 keV. We find a linear x-ray flux response to five decades of flux for RbGd/sub 2/Br/sub 7/:Ce and four decades of flux for LaCl/sub 3/:Ce and LaBr/sub 3/:Ce. The current in the photodiode is proportional to the x-ray flux in the scintillators provided that direct interactions between x-rays and the photodiode are subtracted. This is accomplished by measuring the photodiode current with and without optical opaque tape between the scintillator and photodiode. Coupling dense scintillators to radiation hard solid state detectors may allow for configurations useful for both low flux gamma-ray and high flux x-ray detection which could improve dual-modality imaging techniques such as combined CT/SPECT and CT/PET." @default.
- W1575176265 created "2016-06-24" @default.
- W1575176265 creator A5040127124 @default.
- W1575176265 creator A5049999828 @default.
- W1575176265 creator A5068602378 @default.
- W1575176265 creator A5072071553 @default.
- W1575176265 creator A5074957693 @default.
- W1575176265 creator A5083920201 @default.
- W1575176265 creator A5088596480 @default.
- W1575176265 date "2004-03-22" @default.
- W1575176265 modified "2023-09-22" @default.
- W1575176265 title "Scintillator energy and flux linearity for RbGd/sub 2/Br/sub 7/:Ce, LaCl/sub 3/:Ce, and LaBr/sub 3/:Ce" @default.
- W1575176265 cites W1618227575 @default.
- W1575176265 cites W1761582443 @default.
- W1575176265 cites W2011793621 @default.
- W1575176265 cites W2019312565 @default.
- W1575176265 cites W606466430 @default.
- W1575176265 doi "https://doi.org/10.1109/nssmic.2002.1239477" @default.
- W1575176265 hasPublicationYear "2004" @default.
- W1575176265 type Work @default.
- W1575176265 sameAs 1575176265 @default.
- W1575176265 citedByCount "0" @default.
- W1575176265 crossrefType "proceedings-article" @default.
- W1575176265 hasAuthorship W1575176265A5040127124 @default.
- W1575176265 hasAuthorship W1575176265A5049999828 @default.
- W1575176265 hasAuthorship W1575176265A5068602378 @default.
- W1575176265 hasAuthorship W1575176265A5072071553 @default.
- W1575176265 hasAuthorship W1575176265A5074957693 @default.
- W1575176265 hasAuthorship W1575176265A5083920201 @default.
- W1575176265 hasAuthorship W1575176265A5088596480 @default.
- W1575176265 hasConcept C120665830 @default.
- W1575176265 hasConcept C121332964 @default.
- W1575176265 hasConcept C146108262 @default.
- W1575176265 hasConcept C161694136 @default.
- W1575176265 hasConcept C183680338 @default.
- W1575176265 hasConcept C185544564 @default.
- W1575176265 hasConcept C192562407 @default.
- W1575176265 hasConcept C7910260 @default.
- W1575176265 hasConcept C94915269 @default.
- W1575176265 hasConceptScore W1575176265C120665830 @default.
- W1575176265 hasConceptScore W1575176265C121332964 @default.
- W1575176265 hasConceptScore W1575176265C146108262 @default.
- W1575176265 hasConceptScore W1575176265C161694136 @default.
- W1575176265 hasConceptScore W1575176265C183680338 @default.
- W1575176265 hasConceptScore W1575176265C185544564 @default.
- W1575176265 hasConceptScore W1575176265C192562407 @default.
- W1575176265 hasConceptScore W1575176265C7910260 @default.
- W1575176265 hasConceptScore W1575176265C94915269 @default.
- W1575176265 hasLocation W15751762651 @default.
- W1575176265 hasOpenAccess W1575176265 @default.
- W1575176265 hasPrimaryLocation W15751762651 @default.
- W1575176265 hasRelatedWork W1581403457 @default.
- W1575176265 hasRelatedWork W1618227575 @default.
- W1575176265 hasRelatedWork W1993948080 @default.
- W1575176265 hasRelatedWork W2010893724 @default.
- W1575176265 hasRelatedWork W2039172996 @default.
- W1575176265 hasRelatedWork W2059155654 @default.
- W1575176265 hasRelatedWork W2115304180 @default.
- W1575176265 hasRelatedWork W2120471617 @default.
- W1575176265 hasRelatedWork W2139871904 @default.
- W1575176265 hasRelatedWork W2142621895 @default.
- W1575176265 hasRelatedWork W2144376386 @default.
- W1575176265 hasRelatedWork W2153617235 @default.
- W1575176265 hasRelatedWork W2165415750 @default.
- W1575176265 hasRelatedWork W2166480537 @default.
- W1575176265 hasRelatedWork W2167031823 @default.
- W1575176265 hasRelatedWork W2171091999 @default.
- W1575176265 hasRelatedWork W2537646300 @default.
- W1575176265 hasRelatedWork W2538575535 @default.
- W1575176265 hasRelatedWork W2539885913 @default.
- W1575176265 hasRelatedWork W2546621958 @default.
- W1575176265 isParatext "false" @default.
- W1575176265 isRetracted "false" @default.
- W1575176265 magId "1575176265" @default.
- W1575176265 workType "article" @default.