Linked Life Data

6316744

Source:http://linkedlifedata.com/resource/pubmed/id/6316744

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1984-1-27
pubmed:abstractText
A method for the calculation of absorbed dose distributions of arbitrarily shaped electron beams is described. Isodose distributions and the output factor of a newly designed treatment field can be predicted with good accuracy, without the need for any dose measurement in the actual field. Two different Gaussian pencil beams are used as building elements for the treatment beams of each electron energy. The dose distributions of the pencil beams are derived from measurements of broad beam dose distributions; in this way the influence of electrons scattered by the applicator walls is taken into account. The contribution to the dose by electrons scattered from a high Z metal frame which defines the treatment field contour is calculated separately and added. This calculation is based on experimentally derived data. The method has been tested for electron beams with 6, 10, 14 and 20 MeV nominal energy. The distance between calculated and measured isodose lines with values between 90 and 10 per cent of the maximum dose did not exceed a limit of 0.3 cm. The difference between calculated and measured output factors remained within 2 per cent.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0365-5954
pubmed:author
pubmed:issnType
Print
pubmed:volume
364
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
73-9
pubmed:dateRevised
2008-4-9
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Dose calculations for arbitrarily shaped electron beams.
pubmed:publicationType
Journal Article