Matches in SemOpenAlex for { <https://semopenalex.org/work/W2899338706> ?p ?o ?g. }
- W2899338706 endingPage "1" @default.
- W2899338706 startingPage "1" @default.
- W2899338706 abstract "Photon counting detectors (PCD) have the potential to improve x-ray imaging; however, they are still hindered by high costs and performance limitations. By using amorphous selenium (a-Se), the cost of PCDs can be significantly reduced compared with modern crystalline semiconductors, and enable large-area deposition. We are developing a direct conversion field-shaping multiwell avalanche detector (SWAD) to overcome the limitation of low carrier mobility and low charge conversion gain in a-Se. SWAD's dual-grid design creates separate nonavalanche interaction (bulk) and avalanche sensing (well) regions, achieving depth-independent avalanche gain. Unipolar time differential (UTD) charge sensing, combined with tunable avalanche gain in the well region allows for fast response and high charge gain. We developed a probability-based numerical simulation to investigate the impact of UTD charge sensing and avalanche gain on the photon counting performance of different a-Se detector configurations. Pulse height spectra (PHS) for 59.5 and 30 keV photons were simulated. We observed excellent agreement between our model and previously published PHS measurements for a planar detector. The energy resolution significantly improved from 33 keV for the planar detector to ∼7 keV for SWAD. SWAD was found to have a linear response approaching 200 kcps/pixel ." @default.
- W2899338706 created "2018-11-09" @default.
- W2899338706 creator A5009322095 @default.
- W2899338706 creator A5012775628 @default.
- W2899338706 creator A5072003003 @default.
- W2899338706 date "2018-10-30" @default.
- W2899338706 modified "2023-09-23" @default.
- W2899338706 title "Photon counting performance of amorphous selenium and its dependence on detector structure" @default.
- W2899338706 cites W1964134089 @default.
- W2899338706 cites W1967200406 @default.
- W2899338706 cites W1968983912 @default.
- W2899338706 cites W1973132483 @default.
- W2899338706 cites W1978478475 @default.
- W2899338706 cites W1981504214 @default.
- W2899338706 cites W1982577055 @default.
- W2899338706 cites W1982789128 @default.
- W2899338706 cites W1990315814 @default.
- W2899338706 cites W1995080031 @default.
- W2899338706 cites W1996463443 @default.
- W2899338706 cites W1997355770 @default.
- W2899338706 cites W1999321979 @default.
- W2899338706 cites W2000822190 @default.
- W2899338706 cites W2005110985 @default.
- W2899338706 cites W2011383673 @default.
- W2899338706 cites W2011553244 @default.
- W2899338706 cites W2013825647 @default.
- W2899338706 cites W2026274796 @default.
- W2899338706 cites W2033242198 @default.
- W2899338706 cites W2045487092 @default.
- W2899338706 cites W2051635575 @default.
- W2899338706 cites W2053975478 @default.
- W2899338706 cites W2060072399 @default.
- W2899338706 cites W2061252026 @default.
- W2899338706 cites W2063443466 @default.
- W2899338706 cites W2064912811 @default.
- W2899338706 cites W2070641026 @default.
- W2899338706 cites W2071276739 @default.
- W2899338706 cites W2072647673 @default.
- W2899338706 cites W2077344098 @default.
- W2899338706 cites W2091628914 @default.
- W2899338706 cites W2116120607 @default.
- W2899338706 cites W2129248518 @default.
- W2899338706 cites W2136290755 @default.
- W2899338706 cites W2166643445 @default.
- W2899338706 cites W2167052594 @default.
- W2899338706 cites W2167384544 @default.
- W2899338706 cites W2168017606 @default.
- W2899338706 cites W2168552825 @default.
- W2899338706 cites W2172086324 @default.
- W2899338706 cites W2288860078 @default.
- W2899338706 cites W2293587253 @default.
- W2899338706 cites W2301213688 @default.
- W2899338706 cites W2314628605 @default.
- W2899338706 cites W2315984000 @default.
- W2899338706 cites W2592001069 @default.
- W2899338706 cites W2600156223 @default.
- W2899338706 cites W2606118496 @default.
- W2899338706 cites W2612199345 @default.
- W2899338706 cites W2744972253 @default.
- W2899338706 cites W2768968349 @default.
- W2899338706 cites W2790834883 @default.
- W2899338706 cites W3123424494 @default.
- W2899338706 cites W4236256952 @default.
- W2899338706 cites W4236806828 @default.
- W2899338706 cites W4240772283 @default.
- W2899338706 cites W4245861336 @default.
- W2899338706 doi "https://doi.org/10.1117/1.jmi.5.4.043502" @default.
- W2899338706 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6206442" @default.
- W2899338706 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30840737" @default.
- W2899338706 hasPublicationYear "2018" @default.
- W2899338706 type Work @default.
- W2899338706 sameAs 2899338706 @default.
- W2899338706 citedByCount "5" @default.
- W2899338706 countsByYear W28993387062019 @default.
- W2899338706 countsByYear W28993387062021 @default.
- W2899338706 countsByYear W28993387062022 @default.
- W2899338706 crossrefType "journal-article" @default.
- W2899338706 hasAuthorship W2899338706A5009322095 @default.
- W2899338706 hasAuthorship W2899338706A5012775628 @default.
- W2899338706 hasAuthorship W2899338706A5072003003 @default.
- W2899338706 hasBestOaLocation W28993387062 @default.
- W2899338706 hasConcept C109679912 @default.
- W2899338706 hasConcept C120665830 @default.
- W2899338706 hasConcept C121332964 @default.
- W2899338706 hasConcept C121684516 @default.
- W2899338706 hasConcept C134786449 @default.
- W2899338706 hasConcept C146108262 @default.
- W2899338706 hasConcept C148704626 @default.
- W2899338706 hasConcept C159317903 @default.
- W2899338706 hasConcept C2781179661 @default.
- W2899338706 hasConcept C2781402376 @default.
- W2899338706 hasConcept C41008148 @default.
- W2899338706 hasConcept C49040817 @default.
- W2899338706 hasConcept C94915269 @default.
- W2899338706 hasConceptScore W2899338706C109679912 @default.
- W2899338706 hasConceptScore W2899338706C120665830 @default.
- W2899338706 hasConceptScore W2899338706C121332964 @default.
- W2899338706 hasConceptScore W2899338706C121684516 @default.