Matches in SemOpenAlex for { <https://semopenalex.org/work/W2028651063> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W2028651063 endingPage "1117" @default.
- W2028651063 startingPage "1107" @default.
- W2028651063 abstract "Backscattered radiation (BSR) arising from field-defining collimators and entering the beam monitor chamber (BMC) may contribute to observed variations in medical linear accelerator photon beam output with collimator setting. Measuring the magnitude of such contributions for particular accelerators under specified operating conditions is therefore important when attempting to understand and model accelerator head scatter. The present work was conducted to confirm some backscatter measurements for collimating jaws reported previously and to extend these to include other accelerators and a multileaf collimator (MLC). BSR reaching the BMC from the jaws of Clinac 600C, 2100C and 2300CD accelerators and from an MLC on the 2300CD was investigated using both target-current-pulse-counting and telescope methods. Our measurements show that for the Clinac 600C BSR-dependent output variations are negligible. However, for the 2100C and 2300CD BSR-dependent relative output increased in an almost linear fashion, by up to 2.4% for 15 and 18 MV beams, and by up to 1.7% for 6 MV beams, as the field size varied from 5 x 5 cm2 to 40 x 40 cm2. The magnitude of BSR dependent upon collimator location in the head, as expected, thereby contributing to the collimator exchange effect. An earlier study at our centre using the telescope method had reported higher BSR levels. This discrepancy was resolved when corrections for telescope block and room scatter, previously assumed negligible, were made." @default.
- W2028651063 created "2016-06-24" @default.
- W2028651063 creator A5004233927 @default.
- W2028651063 creator A5055185332 @default.
- W2028651063 creator A5069784123 @default.
- W2028651063 date "1996-07-01" @default.
- W2028651063 modified "2023-10-11" @default.
- W2028651063 title "Measurement of photon beam backscatter from collimators to the beam monitor chamber using target-current-pulse-counting and telescope techniques" @default.
- W2028651063 cites W1977069667 @default.
- W2028651063 cites W1978332278 @default.
- W2028651063 cites W1991160129 @default.
- W2028651063 cites W1995648647 @default.
- W2028651063 cites W2035602673 @default.
- W2028651063 cites W2040534201 @default.
- W2028651063 cites W2046024899 @default.
- W2028651063 cites W2058368964 @default.
- W2028651063 cites W2077670581 @default.
- W2028651063 cites W2081041447 @default.
- W2028651063 cites W2091536667 @default.
- W2028651063 cites W2107438385 @default.
- W2028651063 cites W2118009306 @default.
- W2028651063 cites W2130299504 @default.
- W2028651063 cites W4242380510 @default.
- W2028651063 doi "https://doi.org/10.1088/0031-9155/41/7/003" @default.
- W2028651063 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/8822779" @default.
- W2028651063 hasPublicationYear "1996" @default.
- W2028651063 type Work @default.
- W2028651063 sameAs 2028651063 @default.
- W2028651063 citedByCount "35" @default.
- W2028651063 countsByYear W20286510632012 @default.
- W2028651063 countsByYear W20286510632013 @default.
- W2028651063 countsByYear W20286510632014 @default.
- W2028651063 countsByYear W20286510632015 @default.
- W2028651063 crossrefType "journal-article" @default.
- W2028651063 hasAuthorship W2028651063A5004233927 @default.
- W2028651063 hasAuthorship W2028651063A5055185332 @default.
- W2028651063 hasAuthorship W2028651063A5069784123 @default.
- W2028651063 hasConcept C120665830 @default.
- W2028651063 hasConcept C121332964 @default.
- W2028651063 hasConcept C159317903 @default.
- W2028651063 hasConcept C161471255 @default.
- W2028651063 hasConcept C168834538 @default.
- W2028651063 hasConcept C180048950 @default.
- W2028651063 hasConcept C2779200277 @default.
- W2028651063 hasConcept C2780848835 @default.
- W2028651063 hasConcept C2989005 @default.
- W2028651063 hasConcept C30354325 @default.
- W2028651063 hasConcept C34445779 @default.
- W2028651063 hasConcept C41008148 @default.
- W2028651063 hasConcept C520434653 @default.
- W2028651063 hasConcept C555944384 @default.
- W2028651063 hasConcept C71924100 @default.
- W2028651063 hasConcept C75088862 @default.
- W2028651063 hasConcept C76155785 @default.
- W2028651063 hasConceptScore W2028651063C120665830 @default.
- W2028651063 hasConceptScore W2028651063C121332964 @default.
- W2028651063 hasConceptScore W2028651063C159317903 @default.
- W2028651063 hasConceptScore W2028651063C161471255 @default.
- W2028651063 hasConceptScore W2028651063C168834538 @default.
- W2028651063 hasConceptScore W2028651063C180048950 @default.
- W2028651063 hasConceptScore W2028651063C2779200277 @default.
- W2028651063 hasConceptScore W2028651063C2780848835 @default.
- W2028651063 hasConceptScore W2028651063C2989005 @default.
- W2028651063 hasConceptScore W2028651063C30354325 @default.
- W2028651063 hasConceptScore W2028651063C34445779 @default.
- W2028651063 hasConceptScore W2028651063C41008148 @default.
- W2028651063 hasConceptScore W2028651063C520434653 @default.
- W2028651063 hasConceptScore W2028651063C555944384 @default.
- W2028651063 hasConceptScore W2028651063C71924100 @default.
- W2028651063 hasConceptScore W2028651063C75088862 @default.
- W2028651063 hasConceptScore W2028651063C76155785 @default.
- W2028651063 hasIssue "7" @default.
- W2028651063 hasLocation W20286510631 @default.
- W2028651063 hasLocation W20286510632 @default.
- W2028651063 hasOpenAccess W2028651063 @default.
- W2028651063 hasPrimaryLocation W20286510631 @default.
- W2028651063 hasRelatedWork W1975620399 @default.
- W2028651063 hasRelatedWork W1993442471 @default.
- W2028651063 hasRelatedWork W2028651063 @default.
- W2028651063 hasRelatedWork W2046024899 @default.
- W2028651063 hasRelatedWork W2051097180 @default.
- W2028651063 hasRelatedWork W2055256208 @default.
- W2028651063 hasRelatedWork W2083715124 @default.
- W2028651063 hasRelatedWork W2099343799 @default.
- W2028651063 hasRelatedWork W2104639508 @default.
- W2028651063 hasRelatedWork W4237601868 @default.
- W2028651063 hasVolume "41" @default.
- W2028651063 isParatext "false" @default.
- W2028651063 isRetracted "false" @default.
- W2028651063 magId "2028651063" @default.
- W2028651063 workType "article" @default.