FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022971778> ?p ?o ?g. }

• W2022971778 endingPage "4789" @default.
• W2022971778 startingPage "4781" @default.
• W2022971778 abstract "For small photon fields, accurate values of a tissue-phantom ratio (TPR) are difficult to obtain either by direct measurement or by the conventional method of converting from measured percentage depth doses (%dd). This study aims to develop an empirical method to accurately obtain TPRs from %dd curves for small radiosurgery beams. The Monte Carlo simulation codes BEAMnrc/DOSXYZnrc were used to simulate the accelerator head and small, collimated fields including the circular cone accessory. The Monte Carlo directly calculated TPR values as a function of depth were compared with TPRs converted from %dd curves in a water phantom for field sizes ranging from 4 mm diameter to 10 × 10 cm(2) fields. Direct measurements of TPRs were performed with the detector remaining fixed at a SAD of 100 cm and increasing the detector depth by adding water. The %dd curves were measured at 100 cm SSD in a 50 × 50 × 50 cm(3) water tank. Using the Monte Carlo values, we developed an empirical formula to obtain TPRs from %dd and validated its accuracy. The conventional method of obtaining TPRs from %dd underestimate TPR by 3.4% and 0.6% at a depth 1.5 cm and overestimate TPR by 6.4% and 1.7% at a depth of 25 cm for 4 mm and 30 mm diameter circular fields, respectively. The empirical formula is derived from realistic Monte Carlo simulations using field sizes ranging from 4 to 30 mm and depth ranging from 1.5 to 25 cm. TPRs calculated using this function deviate from TPRs directly calculated from Monte Carlo by less than 0.5%. The accuracy of this empirical formula is validated against the directly measured TPRs in water. The developed empirical method has the potential to greatly simply the work in obtaining TPRs from measured %dd curves for small fields. By using this developed empirical formula the uncertainties between directly measured TPRs and converted TPRs from measured %dd curves are within 1%." @default.
• W2022971778 created "2016-06-24" @default.
• W2022971778 creator A5040051510 @default.
• W2022971778 creator A5082148745 @default.
• W2022971778 date "2013-06-20" @default.
• W2022971778 modified "2023-10-14" @default.
• W2022971778 title "An empirical formula to obtain tissue-phantom ratios from percentage depth–dose curves for small fields" @default.
• W2022971778 cites W1530231118 @default.
• W2022971778 cites W1967798147 @default.
• W2022971778 cites W1975081105 @default.
• W2022971778 cites W1977292846 @default.
• W2022971778 cites W1977886974 @default.
• W2022971778 cites W1981196781 @default.
• W2022971778 cites W1989752136 @default.
• W2022971778 cites W1993651970 @default.
• W2022971778 cites W2018840556 @default.
• W2022971778 cites W2021360898 @default.
• W2022971778 cites W2021987179 @default.
• W2022971778 cites W2024074305 @default.
• W2022971778 cites W2037185998 @default.
• W2022971778 cites W2039809338 @default.
• W2022971778 cites W2044092895 @default.
• W2022971778 cites W2044617178 @default.
• W2022971778 cites W2064419667 @default.
• W2022971778 cites W2065629047 @default.
• W2022971778 cites W2078631940 @default.
• W2022971778 cites W2084488743 @default.
• W2022971778 cites W2091361931 @default.
• W2022971778 cites W2095120618 @default.
• W2022971778 cites W2155111756 @default.
• W2022971778 cites W2165767756 @default.
• W2022971778 cites W2167822361 @default.
• W2022971778 cites W2499236741 @default.
• W2022971778 doi "https://doi.org/10.1088/0031-9155/58/14/4781" @default.
• W2022971778 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23787215" @default.
• W2022971778 hasPublicationYear "2013" @default.
• W2022971778 type Work @default.
• W2022971778 sameAs 2022971778 @default.
• W2022971778 citedByCount "5" @default.
• W2022971778 countsByYear W20229717782014 @default.
• W2022971778 countsByYear W20229717782015 @default.
• W2022971778 countsByYear W20229717782018 @default.
• W2022971778 countsByYear W20229717782020 @default.
• W2022971778 countsByYear W20229717782021 @default.
• W2022971778 crossrefType "journal-article" @default.
• W2022971778 hasAuthorship W2022971778A5040051510 @default.
• W2022971778 hasAuthorship W2022971778A5082148745 @default.
• W2022971778 hasConcept C104293457 @default.
• W2022971778 hasConcept C105795698 @default.
• W2022971778 hasConcept C115051666 @default.
• W2022971778 hasConcept C120665830 @default.
• W2022971778 hasConcept C121332964 @default.
• W2022971778 hasConcept C127313418 @default.
• W2022971778 hasConcept C13280743 @default.
• W2022971778 hasConcept C192562407 @default.
• W2022971778 hasConcept C19499675 @default.
• W2022971778 hasConcept C30475298 @default.
• W2022971778 hasConcept C33923547 @default.
• W2022971778 hasConcept C34445779 @default.
• W2022971778 hasConcept C520434653 @default.
• W2022971778 hasConceptScore W2022971778C104293457 @default.
• W2022971778 hasConceptScore W2022971778C105795698 @default.
• W2022971778 hasConceptScore W2022971778C115051666 @default.
• W2022971778 hasConceptScore W2022971778C120665830 @default.
• W2022971778 hasConceptScore W2022971778C121332964 @default.
• W2022971778 hasConceptScore W2022971778C127313418 @default.
• W2022971778 hasConceptScore W2022971778C13280743 @default.
• W2022971778 hasConceptScore W2022971778C192562407 @default.
• W2022971778 hasConceptScore W2022971778C19499675 @default.
• W2022971778 hasConceptScore W2022971778C30475298 @default.
• W2022971778 hasConceptScore W2022971778C33923547 @default.
• W2022971778 hasConceptScore W2022971778C34445779 @default.
• W2022971778 hasConceptScore W2022971778C520434653 @default.
• W2022971778 hasIssue "14" @default.
• W2022971778 hasLocation W20229717781 @default.
• W2022971778 hasLocation W20229717782 @default.
• W2022971778 hasOpenAccess W2022971778 @default.
• W2022971778 hasPrimaryLocation W20229717781 @default.
• W2022971778 hasRelatedWork W2062511498 @default.
• W2022971778 hasRelatedWork W2064398826 @default.
• W2022971778 hasRelatedWork W2074223366 @default.
• W2022971778 hasRelatedWork W2085008181 @default.
• W2022971778 hasRelatedWork W2131071879 @default.
• W2022971778 hasRelatedWork W2169114179 @default.
• W2022971778 hasRelatedWork W2462494903 @default.
• W2022971778 hasRelatedWork W2612527208 @default.
• W2022971778 hasRelatedWork W2940503366 @default.
• W2022971778 hasRelatedWork W2948588296 @default.
• W2022971778 hasVolume "58" @default.
• W2022971778 isParatext "false" @default.
• W2022971778 isRetracted "false" @default.
• W2022971778 magId "2022971778" @default.
• W2022971778 workType "article" @default.