FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023040893> ?p ?o ?g. }

• W2023040893 endingPage "2549" @default.
• W2023040893 startingPage "2549" @default.
• W2023040893 abstract "Purpose: To compute and to verify experimentally Cherenkov radiation production inside the eye from direct and indirect high energy x-ray irradiation of the orbit and that it exceeds detectability of Cherenkov radiation in scotopic vision. We show that the Cherenkov yield for direct and indirect irradiation exceeds the detection threshold of 6.4×107 photons/m2s. Methods: In photon and electron beam radiotherapy of intraorbital and periorbital tissues, patients commonly report having light sensations during treatment. The explanation usually offered is that ‘nerve stimulation’ is occurring. The radiotherapy literature reports the effect to be the result of ‘phosphenes’. Although phosphenes may play a role, we propose instead that patients are predominantly seeing Cherenkov radiation resulting from electrons inside the eye having kinetic energy exceeding the Cherenkov radiation threshold of 0.26 MeV. We consider calculations for direct irradiation of the eye from a portal image and indirect irradiation from treatment of peri-orbital tissues and show that it exceeds threshold detection. Results: We calculate the Cherenkov yield using analytic methods and the measurements were in good agreement with our calculations. The Cherenkov radiation from a distilled water phantom, a square plastic phantom and an anthropomorphic plastic phantom were readily visible with a high quality CCD video camera. A digital camera captures the images from the console monitor. Threshold detection of Cherenkov radiation emanating from the water phantom through the video camera was determined and compared to a measurable source. The calculations for the water phantom match reasonably well with measurements and are roughly 1 lux and 3 lux respectively. Conclusion: We show images of Cherenkov radiation emanating from routine radiotherapy treatments and demonstrate that measurements corresponding to these images match well with calculations. We show that the Cherenkov component generated inside ocular media is sufficient to be detected by the patient." @default.
• W2023040893 created "2016-06-24" @default.
• W2023040893 creator A5008375520 @default.
• W2023040893 creator A5050407840 @default.
• W2023040893 creator A5052966036 @default.
• W2023040893 creator A5054362815 @default.
• W2023040893 creator A5067261120 @default.
• W2023040893 creator A5091101207 @default.
• W2023040893 date "2007-06-01" @default.
• W2023040893 modified "2023-09-27" @default.
• W2023040893 title "TU-C-AUD-01: Visual Sensations During Megavoltage Radiotherapy to the Orbit Attributable to Cherenkov Radiation" @default.
• W2023040893 doi "https://doi.org/10.1118/1.2761350" @default.
• W2023040893 hasPublicationYear "2007" @default.
• W2023040893 type Work @default.
• W2023040893 sameAs 2023040893 @default.
• W2023040893 citedByCount "0" @default.
• W2023040893 crossrefType "journal-article" @default.
• W2023040893 hasAuthorship W2023040893A5008375520 @default.
• W2023040893 hasAuthorship W2023040893A5050407840 @default.
• W2023040893 hasAuthorship W2023040893A5052966036 @default.
• W2023040893 hasAuthorship W2023040893A5054362815 @default.
• W2023040893 hasAuthorship W2023040893A5067261120 @default.
• W2023040893 hasAuthorship W2023040893A5091101207 @default.
• W2023040893 hasConcept C104293457 @default.
• W2023040893 hasConcept C111337013 @default.
• W2023040893 hasConcept C120665830 @default.
• W2023040893 hasConcept C121332964 @default.
• W2023040893 hasConcept C153385146 @default.
• W2023040893 hasConcept C159317903 @default.
• W2023040893 hasConcept C185544564 @default.
• W2023040893 hasConcept C72591435 @default.
• W2023040893 hasConcept C94915269 @default.
• W2023040893 hasConceptScore W2023040893C104293457 @default.
• W2023040893 hasConceptScore W2023040893C111337013 @default.
• W2023040893 hasConceptScore W2023040893C120665830 @default.
• W2023040893 hasConceptScore W2023040893C121332964 @default.
• W2023040893 hasConceptScore W2023040893C153385146 @default.
• W2023040893 hasConceptScore W2023040893C159317903 @default.
• W2023040893 hasConceptScore W2023040893C185544564 @default.
• W2023040893 hasConceptScore W2023040893C72591435 @default.
• W2023040893 hasConceptScore W2023040893C94915269 @default.
• W2023040893 hasIssue "6Part17" @default.
• W2023040893 hasLocation W20230408931 @default.
• W2023040893 hasOpenAccess W2023040893 @default.
• W2023040893 hasPrimaryLocation W20230408931 @default.
• W2023040893 hasRelatedWork W1980962572 @default.
• W2023040893 hasRelatedWork W2024924997 @default.
• W2023040893 hasRelatedWork W2070854991 @default.
• W2023040893 hasRelatedWork W2091687812 @default.
• W2023040893 hasRelatedWork W265805197 @default.
• W2023040893 hasRelatedWork W3098067718 @default.
• W2023040893 hasRelatedWork W3102289732 @default.
• W2023040893 hasRelatedWork W3104365378 @default.
• W2023040893 hasRelatedWork W3105959982 @default.
• W2023040893 hasRelatedWork W4255154494 @default.
• W2023040893 hasVolume "34" @default.
• W2023040893 isParatext "false" @default.
• W2023040893 isRetracted "false" @default.
• W2023040893 magId "2023040893" @default.
• W2023040893 workType "article" @default.