Matches in SemOpenAlex for { <https://semopenalex.org/work/W1995048907> ?p ?o ?g. }
Showing items 1 to 74 of
74
with 100 items per page.
- W1995048907 endingPage "795" @default.
- W1995048907 startingPage "795" @default.
- W1995048907 abstract "A variable air-volume, parallel-plate, extrapolation chamber forming an integral part of a Solid–Water© phantom was built to determine the absorbed dose in Solid–Water©. The sensitive air-volume of the chamber is controlled through the movement of the chamber piston using a micrometer connecting the piston to the phantom body. A mechanical distance travel indicator monitors the relative displacement of the piston with a precision of ±0.002 mm. Irradiations were carried out with cobalt-60 gamma rays, x-ray beams ranging from 4 to 18 MV, and electron beams between 6 and 22 MeV. The absorbed dose at a given depth in Solid–Water© is proportional to the ionization gradient measured in the Bragg–Gray cavity region with a Solid–Water© embedded extrapolation chamber. Measured charge is corrected for ion recombination, ion diffusion, and charge multiplication in the chamber air volume according to a comprehensive model for charge loss in an ionization chamber. The discrepancies between doses determined with our uncalibrated phantom-embedded extrapolation chamber and doses obtained with calibrated Farmer-type cylindrical ionization chambers following the AAPM-TG21 dosimetry protocol is less than 1% for photon and electron beams at all clinical megavoltage energies. Uncalibrated extrapolation chambers thus offer a simple and practical alternative to other techniques used in output measurements of megavoltage photon and electron beams." @default.
- W1995048907 created "2016-06-24" @default.
- W1995048907 creator A5043764527 @default.
- W1995048907 date "1998-05-01" @default.
- W1995048907 modified "2023-09-23" @default.
- W1995048907 title "Calibration of megavoltage photon and electron beams with an extrapolation chamber" @default.
- W1995048907 doi "https://doi.org/10.1118/1.598398" @default.
- W1995048907 hasPublicationYear "1998" @default.
- W1995048907 type Work @default.
- W1995048907 sameAs 1995048907 @default.
- W1995048907 citedByCount "0" @default.
- W1995048907 crossrefType "journal-article" @default.
- W1995048907 hasAuthorship W1995048907A5043764527 @default.
- W1995048907 hasConcept C104293457 @default.
- W1995048907 hasConcept C120665830 @default.
- W1995048907 hasConcept C121332964 @default.
- W1995048907 hasConcept C132459708 @default.
- W1995048907 hasConcept C134306372 @default.
- W1995048907 hasConcept C145148216 @default.
- W1995048907 hasConcept C147120987 @default.
- W1995048907 hasConcept C151770136 @default.
- W1995048907 hasConcept C159317903 @default.
- W1995048907 hasConcept C165838908 @default.
- W1995048907 hasConcept C184779094 @default.
- W1995048907 hasConcept C185544564 @default.
- W1995048907 hasConcept C192562407 @default.
- W1995048907 hasConcept C198291218 @default.
- W1995048907 hasConcept C2989005 @default.
- W1995048907 hasConcept C33923547 @default.
- W1995048907 hasConcept C62520636 @default.
- W1995048907 hasConcept C63007395 @default.
- W1995048907 hasConcept C71924100 @default.
- W1995048907 hasConcept C75088862 @default.
- W1995048907 hasConceptScore W1995048907C104293457 @default.
- W1995048907 hasConceptScore W1995048907C120665830 @default.
- W1995048907 hasConceptScore W1995048907C121332964 @default.
- W1995048907 hasConceptScore W1995048907C132459708 @default.
- W1995048907 hasConceptScore W1995048907C134306372 @default.
- W1995048907 hasConceptScore W1995048907C145148216 @default.
- W1995048907 hasConceptScore W1995048907C147120987 @default.
- W1995048907 hasConceptScore W1995048907C151770136 @default.
- W1995048907 hasConceptScore W1995048907C159317903 @default.
- W1995048907 hasConceptScore W1995048907C165838908 @default.
- W1995048907 hasConceptScore W1995048907C184779094 @default.
- W1995048907 hasConceptScore W1995048907C185544564 @default.
- W1995048907 hasConceptScore W1995048907C192562407 @default.
- W1995048907 hasConceptScore W1995048907C198291218 @default.
- W1995048907 hasConceptScore W1995048907C2989005 @default.
- W1995048907 hasConceptScore W1995048907C33923547 @default.
- W1995048907 hasConceptScore W1995048907C62520636 @default.
- W1995048907 hasConceptScore W1995048907C63007395 @default.
- W1995048907 hasConceptScore W1995048907C71924100 @default.
- W1995048907 hasConceptScore W1995048907C75088862 @default.
- W1995048907 hasIssue "5" @default.
- W1995048907 hasLocation W19950489071 @default.
- W1995048907 hasOpenAccess W1995048907 @default.
- W1995048907 hasPrimaryLocation W19950489071 @default.
- W1995048907 hasRelatedWork W1967616713 @default.
- W1995048907 hasRelatedWork W1974797338 @default.
- W1995048907 hasRelatedWork W1979984189 @default.
- W1995048907 hasRelatedWork W1996312971 @default.
- W1995048907 hasRelatedWork W2007619567 @default.
- W1995048907 hasRelatedWork W2047576761 @default.
- W1995048907 hasRelatedWork W2054895082 @default.
- W1995048907 hasRelatedWork W2085206145 @default.
- W1995048907 hasRelatedWork W2093665468 @default.
- W1995048907 hasRelatedWork W2760458978 @default.
- W1995048907 hasVolume "25" @default.
- W1995048907 isParatext "false" @default.
- W1995048907 isRetracted "false" @default.
- W1995048907 magId "1995048907" @default.
- W1995048907 workType "article" @default.