Matches in SemOpenAlex for { <https://semopenalex.org/work/W1981036345> ?p ?o ?g. }
Showing items 1 to 84 of
84
with 100 items per page.
- W1981036345 endingPage "2150" @default.
- W1981036345 startingPage "2150" @default.
- W1981036345 abstract "Purpose: To determine an optimal source‐to‐collimator distance (SCD) for an extendible multi‐leaf collimator (exMLC) designed for energy‐ and intensity‐modulated electron radiotherapy for superficial tumors.Method and Materials: To implement an extendible Modulated Electron Radiation Therapy (exMERT) technique for optimized radiotherapy of superficial tumors, we designed a virtual exMLC and investigated the effect of SCD on the characteristics of resulting electron beams. An exMLC made of tungsten leaves of 15 mm thickness and 5 mm width and with straight leaf ends was modeled as a MLC component module in EGS4/BEAM simulations. Phase space files were scored at the back surface of the exMLC and at 100 cm SSD for 6 to 20 MeV electron beams emerging from a Varian Clinac 21EX treatment head equipped with exMLC located at SCDs of 85, 90 and 95 cm. These phase space files were then analyzed using BEAMDP and used as beam input for further dose calculations in water. Results: At shorter SCD (85 cm), the in‐air scatter and dose overlapping at depth were the worst compared to other SCDs. The 80–20 penumbra of 1 cm × 1 cm beamlet was 0.92 cm at 100 cm SSD and 1.35 cm at 2 cm depth in water for 6 MeV beam. On the other hand, the leaf scatter and leakage from the exMLC located at 95 cm SCD resulted in larger bremsstrahlung photondose (∼4% of maximum dose for 20 MeV electrons). Overall, the exMLC at 90 cm SCD yielded modest leaf scatter and leakage as well as dose overlapping at depths, acceptable to clinical applications of exMERT with good clearance for patient setups. Conclusions: Based on the consideration of beam penumbra, photon contamination, and patient clearance, the SCD of 90 cm was determined to be the best compromise for exMLC to be used in exMERT." @default.
- W1981036345 created "2016-06-24" @default.
- W1981036345 creator A5021898074 @default.
- W1981036345 creator A5048814890 @default.
- W1981036345 creator A5071461784 @default.
- W1981036345 creator A5089288351 @default.
- W1981036345 date "2006-06-01" @default.
- W1981036345 modified "2023-10-16" @default.
- W1981036345 title "SU-FF-T-456: What Is the Optimal Source-To-Collimator Distance for An Extendible MLC Designed for Energy- and Intensity-Modulated Electron Radiation Therapy of Superficial Tumors" @default.
- W1981036345 doi "https://doi.org/10.1118/1.2241374" @default.
- W1981036345 hasPublicationYear "2006" @default.
- W1981036345 type Work @default.
- W1981036345 sameAs 1981036345 @default.
- W1981036345 citedByCount "0" @default.
- W1981036345 crossrefType "journal-article" @default.
- W1981036345 hasAuthorship W1981036345A5021898074 @default.
- W1981036345 hasAuthorship W1981036345A5048814890 @default.
- W1981036345 hasAuthorship W1981036345A5071461784 @default.
- W1981036345 hasAuthorship W1981036345A5089288351 @default.
- W1981036345 hasConcept C120665830 @default.
- W1981036345 hasConcept C121332964 @default.
- W1981036345 hasConcept C126838900 @default.
- W1981036345 hasConcept C147120987 @default.
- W1981036345 hasConcept C153385146 @default.
- W1981036345 hasConcept C161471255 @default.
- W1981036345 hasConcept C168834538 @default.
- W1981036345 hasConcept C180048950 @default.
- W1981036345 hasConcept C185544564 @default.
- W1981036345 hasConcept C186370098 @default.
- W1981036345 hasConcept C19527891 @default.
- W1981036345 hasConcept C2779200277 @default.
- W1981036345 hasConcept C2989005 @default.
- W1981036345 hasConcept C31601959 @default.
- W1981036345 hasConcept C48925448 @default.
- W1981036345 hasConcept C509974204 @default.
- W1981036345 hasConcept C62520636 @default.
- W1981036345 hasConcept C71924100 @default.
- W1981036345 hasConcept C75088862 @default.
- W1981036345 hasConcept C89631360 @default.
- W1981036345 hasConcept C93038891 @default.
- W1981036345 hasConcept C96834759 @default.
- W1981036345 hasConceptScore W1981036345C120665830 @default.
- W1981036345 hasConceptScore W1981036345C121332964 @default.
- W1981036345 hasConceptScore W1981036345C126838900 @default.
- W1981036345 hasConceptScore W1981036345C147120987 @default.
- W1981036345 hasConceptScore W1981036345C153385146 @default.
- W1981036345 hasConceptScore W1981036345C161471255 @default.
- W1981036345 hasConceptScore W1981036345C168834538 @default.
- W1981036345 hasConceptScore W1981036345C180048950 @default.
- W1981036345 hasConceptScore W1981036345C185544564 @default.
- W1981036345 hasConceptScore W1981036345C186370098 @default.
- W1981036345 hasConceptScore W1981036345C19527891 @default.
- W1981036345 hasConceptScore W1981036345C2779200277 @default.
- W1981036345 hasConceptScore W1981036345C2989005 @default.
- W1981036345 hasConceptScore W1981036345C31601959 @default.
- W1981036345 hasConceptScore W1981036345C48925448 @default.
- W1981036345 hasConceptScore W1981036345C509974204 @default.
- W1981036345 hasConceptScore W1981036345C62520636 @default.
- W1981036345 hasConceptScore W1981036345C71924100 @default.
- W1981036345 hasConceptScore W1981036345C75088862 @default.
- W1981036345 hasConceptScore W1981036345C89631360 @default.
- W1981036345 hasConceptScore W1981036345C93038891 @default.
- W1981036345 hasConceptScore W1981036345C96834759 @default.
- W1981036345 hasIssue "6Part14" @default.
- W1981036345 hasLocation W19810363451 @default.
- W1981036345 hasOpenAccess W1981036345 @default.
- W1981036345 hasPrimaryLocation W19810363451 @default.
- W1981036345 hasRelatedWork W1977472174 @default.
- W1981036345 hasRelatedWork W2003071413 @default.
- W1981036345 hasRelatedWork W2101533870 @default.
- W1981036345 hasRelatedWork W2104639508 @default.
- W1981036345 hasRelatedWork W2149503133 @default.
- W1981036345 hasRelatedWork W2162558591 @default.
- W1981036345 hasRelatedWork W2427616200 @default.
- W1981036345 hasRelatedWork W2466224447 @default.
- W1981036345 hasRelatedWork W3046980763 @default.
- W1981036345 hasRelatedWork W64132664 @default.
- W1981036345 hasVolume "33" @default.
- W1981036345 isParatext "false" @default.
- W1981036345 isRetracted "false" @default.
- W1981036345 magId "1981036345" @default.
- W1981036345 workType "article" @default.