Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100220545> ?p ?o ?g. }
Showing items 1 to 100 of
100
with 100 items per page.
- W3100220545 endingPage "250" @default.
- W3100220545 startingPage "243" @default.
- W3100220545 abstract "PurposeTo evaluate the flat-panel detector quenching effect and clinical usability of a flat-panel based compact QA device for PBS daily constancy measurements.Materials & MethodThe QA device, named Sphinx Compact, is composed of a 20x20 cm2 flat-panel imager mounted on a portable frame with removable plastic modules for constancy checks of proton energy (100 MeV, 150 MeV, 200 MeV), Spread-Out-Bragg-Peak (SOBP) profile, and machine output. The potential quenching effect of the flat-panel detector was evaluated. Daily PBS QA tests of X-ray/proton isocenter coincidence, the constancy of proton spot position and sigma as well as the energy of pristine proton beam, and the flatness of SOBP proton beam through the 'transformed' profile were performed and analyzed. Furthermore, the sensitivity of detecting energy changes of pristine proton beam was also evaluated.ResultsThe quenching effect was observed at depths near the pristine peak regions. The flat-panel measured range of the distal 80% is within 0.9 mm to the defined ranges of the delivered proton beams. X-ray/proton isocenter coincidence tests demonstrated maximum mismatch of 0.3 mm between the two isocenters. The device can detect 0.1 mm change of spot position and 0.1 MeV energy changes of pristine proton beams. The measured transformed SOBP beam profile through the wedge module rendered as flat.ConclusionsEven though the flat-panel detector exhibited quenching effect at the Bragg peak region, the proton range can still be accurately measured. The device can fulfill the requirements of the daily QA tests recommended by the AAPM TG224 Report." @default.
- W3100220545 created "2020-11-23" @default.
- W3100220545 creator A5003398763 @default.
- W3100220545 creator A5032607786 @default.
- W3100220545 creator A5040103581 @default.
- W3100220545 creator A5041679661 @default.
- W3100220545 date "2020-12-01" @default.
- W3100220545 modified "2023-09-26" @default.
- W3100220545 title "Evaluations of a flat-panel based compact daily quality assurance device for proton pencil beam scanning (PBS) system" @default.
- W3100220545 cites W1994952741 @default.
- W3100220545 cites W2044912129 @default.
- W3100220545 cites W2046241960 @default.
- W3100220545 cites W2060102208 @default.
- W3100220545 cites W2081388291 @default.
- W3100220545 cites W2105874637 @default.
- W3100220545 cites W2120950852 @default.
- W3100220545 cites W2163399589 @default.
- W3100220545 cites W2165359243 @default.
- W3100220545 cites W2170375571 @default.
- W3100220545 cites W2581775270 @default.
- W3100220545 cites W2586063666 @default.
- W3100220545 cites W2611995413 @default.
- W3100220545 cites W2720335810 @default.
- W3100220545 cites W2768776063 @default.
- W3100220545 cites W2786908108 @default.
- W3100220545 cites W2793342412 @default.
- W3100220545 cites W2913675716 @default.
- W3100220545 cites W2934622323 @default.
- W3100220545 cites W2946043171 @default.
- W3100220545 cites W3014125381 @default.
- W3100220545 doi "https://doi.org/10.1016/j.ejmp.2020.10.026" @default.
- W3100220545 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33202363" @default.
- W3100220545 hasPublicationYear "2020" @default.
- W3100220545 type Work @default.
- W3100220545 sameAs 3100220545 @default.
- W3100220545 citedByCount "4" @default.
- W3100220545 countsByYear W31002205452021 @default.
- W3100220545 countsByYear W31002205452023 @default.
- W3100220545 crossrefType "journal-article" @default.
- W3100220545 hasAuthorship W3100220545A5003398763 @default.
- W3100220545 hasAuthorship W3100220545A5032607786 @default.
- W3100220545 hasAuthorship W3100220545A5040103581 @default.
- W3100220545 hasAuthorship W3100220545A5041679661 @default.
- W3100220545 hasBestOaLocation W31002205451 @default.
- W3100220545 hasConcept C104293457 @default.
- W3100220545 hasConcept C120665830 @default.
- W3100220545 hasConcept C121332964 @default.
- W3100220545 hasConcept C134949993 @default.
- W3100220545 hasConcept C168834538 @default.
- W3100220545 hasConcept C181401712 @default.
- W3100220545 hasConcept C185544564 @default.
- W3100220545 hasConcept C192562407 @default.
- W3100220545 hasConcept C26405456 @default.
- W3100220545 hasConcept C2775881188 @default.
- W3100220545 hasConcept C2778530986 @default.
- W3100220545 hasConcept C2779244869 @default.
- W3100220545 hasConcept C2780944729 @default.
- W3100220545 hasConcept C2781298738 @default.
- W3100220545 hasConcept C54516573 @default.
- W3100220545 hasConcept C62520636 @default.
- W3100220545 hasConcept C94898600 @default.
- W3100220545 hasConcept C94915269 @default.
- W3100220545 hasConceptScore W3100220545C104293457 @default.
- W3100220545 hasConceptScore W3100220545C120665830 @default.
- W3100220545 hasConceptScore W3100220545C121332964 @default.
- W3100220545 hasConceptScore W3100220545C134949993 @default.
- W3100220545 hasConceptScore W3100220545C168834538 @default.
- W3100220545 hasConceptScore W3100220545C181401712 @default.
- W3100220545 hasConceptScore W3100220545C185544564 @default.
- W3100220545 hasConceptScore W3100220545C192562407 @default.
- W3100220545 hasConceptScore W3100220545C26405456 @default.
- W3100220545 hasConceptScore W3100220545C2775881188 @default.
- W3100220545 hasConceptScore W3100220545C2778530986 @default.
- W3100220545 hasConceptScore W3100220545C2779244869 @default.
- W3100220545 hasConceptScore W3100220545C2780944729 @default.
- W3100220545 hasConceptScore W3100220545C2781298738 @default.
- W3100220545 hasConceptScore W3100220545C54516573 @default.
- W3100220545 hasConceptScore W3100220545C62520636 @default.
- W3100220545 hasConceptScore W3100220545C94898600 @default.
- W3100220545 hasConceptScore W3100220545C94915269 @default.
- W3100220545 hasLocation W31002205451 @default.
- W3100220545 hasOpenAccess W3100220545 @default.
- W3100220545 hasPrimaryLocation W31002205451 @default.
- W3100220545 hasRelatedWork W1832353214 @default.
- W3100220545 hasRelatedWork W1991643475 @default.
- W3100220545 hasRelatedWork W2038769069 @default.
- W3100220545 hasRelatedWork W2040264181 @default.
- W3100220545 hasRelatedWork W2061348211 @default.
- W3100220545 hasRelatedWork W2078113378 @default.
- W3100220545 hasRelatedWork W2087245778 @default.
- W3100220545 hasRelatedWork W2583087642 @default.
- W3100220545 hasRelatedWork W3029117906 @default.
- W3100220545 hasRelatedWork W3100220545 @default.
- W3100220545 hasVolume "80" @default.
- W3100220545 isParatext "false" @default.
- W3100220545 isRetracted "false" @default.
- W3100220545 magId "3100220545" @default.
- W3100220545 workType "article" @default.