Radiochromic film as a radiotherapy surface-dose detector
Radiochromic film is shown to be a useful surface-dose detector for radiotherapy x-ray beams. Central-axis percentage surface-dose results as measured by Gafchromic film for a 6 MVp x-ray beam produced by a Varian 2100C Linac at 100 cm SSD are 16%, 25%, 35%, 41% for 10, 20, 30 and 40 cm square field...
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| Published in: | Physics in medicine & biology Vol. 41; no. 6; p. 1073 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
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England
01-06-1996
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| Abstract | Radiochromic film is shown to be a useful surface-dose detector for radiotherapy x-ray beams. Central-axis percentage surface-dose results as measured by Gafchromic film for a 6 MVp x-ray beam produced by a Varian 2100C Linac at 100 cm SSD are 16%, 25%, 35%, 41% for 10, 20, 30 and 40 cm square field sizes, respectively. Using a simple, uniform light source and a CCD camera connected to an image analysis system, quantitative 3D surface doses are accurately attainable in real time as either numerical data, a black-and-white image or a colour-enhanced image. |
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| AbstractList | Radiochromic film is shown to be a useful surface-dose detector for radiotherapy x-ray beams. Central-axis percentage surface-dose results as measured by Gafchromic film for a 6 MVp x-ray beam produced by a Varian 2100C Linac at 100 cm SSD are 16%, 25%, 35%, 41% for 10, 20, 30 and 40 cm square field sizes, respectively. Using a simple, uniform light source and a CCD camera connected to an image analysis system, quantitative 3D surface doses are accurately attainable in real time as either numerical data, a black-and-white image or a colour-enhanced image. |
| Author | Metcalfe, P E Mathur, J N Butson, M J |
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| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/8794487$$D View this record in MEDLINE/PubMed |
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| SubjectTerms | Biophysical Phenomena Biophysics Humans Phantoms, Imaging Radiometry - instrumentation Radiotherapy Dosage Radiotherapy, High-Energy Skin - radiation effects X-Ray Film |
| Title | Radiochromic film as a radiotherapy surface-dose detector |
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