Matches in SemOpenAlex for { <https://semopenalex.org/work/W2235963772> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W2235963772 endingPage "161" @default.
- W2235963772 startingPage "157" @default.
- W2235963772 abstract "Introduction. The most important goal in radiation therapy is treating the tumor while protecting the surrounding healthy tissue. To achieve this goal the difference between prescribed and deliveredtumor dose has to be less than±2 percent. This study evaluated the necessity of using output factors for changing output of a reference field to the output of other field sizes.Methods. Scp was measured in water and Se in a narrow cylindrical phantom built in this research for cobalt and 12 MV beams. The separation of Scp to Sc and Sp parts for blocked fields was evaluated by comparing the measured and calculated Scp values for blocked fields.Results. Results of this study indicates that if output factors are not used for a 12 MV beam the difference between delivered and prescribed tumor dose is from 13 percent (in largest field) to – 6 percent (in smallest field) ( difference was 8 percent for cobalt beam). The 'method of separating Scp to Se and Sp was verified (maximum difference from measured values was 1.3 percent).Discussion. In the method of using phantom field size for selecting Scp, tumor dose was more than prescribed dose from 2.4 percent (for a 27 percent block) to 7.8 percent (for a 90 percent block) for a 12 MV beam (the error increased by block size and proximity of block to the center)." @default.
- W2235963772 created "2016-06-24" @default.
- W2235963772 creator A5033713767 @default.
- W2235963772 creator A5089688310 @default.
- W2235963772 date "2000-01-01" @default.
- W2235963772 modified "2023-09-23" @default.
- W2235963772 title "TUMOR DOSE ERROR ANALYSIS FOR MEGAVOLTAGE OPEN AND BLOCKED FIELDS USING MEASURED SCATTER CORRECTION FACTORS" @default.
- W2235963772 hasPublicationYear "2000" @default.
- W2235963772 type Work @default.
- W2235963772 sameAs 2235963772 @default.
- W2235963772 citedByCount "0" @default.
- W2235963772 crossrefType "journal-article" @default.
- W2235963772 hasAuthorship W2235963772A5033713767 @default.
- W2235963772 hasAuthorship W2235963772A5089688310 @default.
- W2235963772 hasConcept C104293457 @default.
- W2235963772 hasConcept C111337013 @default.
- W2235963772 hasConcept C120665830 @default.
- W2235963772 hasConcept C121332964 @default.
- W2235963772 hasConcept C126322002 @default.
- W2235963772 hasConcept C136229726 @default.
- W2235963772 hasConcept C168834538 @default.
- W2235963772 hasConcept C185544564 @default.
- W2235963772 hasConcept C2524010 @default.
- W2235963772 hasConcept C2777210771 @default.
- W2235963772 hasConcept C2989005 @default.
- W2235963772 hasConcept C3018023364 @default.
- W2235963772 hasConcept C3019527723 @default.
- W2235963772 hasConcept C33923547 @default.
- W2235963772 hasConcept C71924100 @default.
- W2235963772 hasConcept C77241059 @default.
- W2235963772 hasConceptScore W2235963772C104293457 @default.
- W2235963772 hasConceptScore W2235963772C111337013 @default.
- W2235963772 hasConceptScore W2235963772C120665830 @default.
- W2235963772 hasConceptScore W2235963772C121332964 @default.
- W2235963772 hasConceptScore W2235963772C126322002 @default.
- W2235963772 hasConceptScore W2235963772C136229726 @default.
- W2235963772 hasConceptScore W2235963772C168834538 @default.
- W2235963772 hasConceptScore W2235963772C185544564 @default.
- W2235963772 hasConceptScore W2235963772C2524010 @default.
- W2235963772 hasConceptScore W2235963772C2777210771 @default.
- W2235963772 hasConceptScore W2235963772C2989005 @default.
- W2235963772 hasConceptScore W2235963772C3018023364 @default.
- W2235963772 hasConceptScore W2235963772C3019527723 @default.
- W2235963772 hasConceptScore W2235963772C33923547 @default.
- W2235963772 hasConceptScore W2235963772C71924100 @default.
- W2235963772 hasConceptScore W2235963772C77241059 @default.
- W2235963772 hasIssue "2" @default.
- W2235963772 hasLocation W22359637721 @default.
- W2235963772 hasOpenAccess W2235963772 @default.
- W2235963772 hasPrimaryLocation W22359637721 @default.
- W2235963772 hasRelatedWork W1978513389 @default.
- W2235963772 hasRelatedWork W1983970539 @default.
- W2235963772 hasRelatedWork W1995415297 @default.
- W2235963772 hasRelatedWork W1998864794 @default.
- W2235963772 hasRelatedWork W1998950255 @default.
- W2235963772 hasRelatedWork W2045854254 @default.
- W2235963772 hasRelatedWork W2046050737 @default.
- W2235963772 hasRelatedWork W2064248448 @default.
- W2235963772 hasRelatedWork W2077990941 @default.
- W2235963772 hasRelatedWork W2094603181 @default.
- W2235963772 hasRelatedWork W2158751708 @default.
- W2235963772 hasRelatedWork W2299691622 @default.
- W2235963772 hasRelatedWork W2371800361 @default.
- W2235963772 hasRelatedWork W2491203856 @default.
- W2235963772 hasRelatedWork W2509466355 @default.
- W2235963772 hasRelatedWork W2746641651 @default.
- W2235963772 hasRelatedWork W3194744543 @default.
- W2235963772 hasRelatedWork W3207144908 @default.
- W2235963772 hasRelatedWork W2088418776 @default.
- W2235963772 hasRelatedWork W3031925053 @default.
- W2235963772 hasVolume "5" @default.
- W2235963772 isParatext "false" @default.
- W2235963772 isRetracted "false" @default.
- W2235963772 magId "2235963772" @default.
- W2235963772 workType "article" @default.