Sökning: L773:1361 6560 OR L773:0031 9155
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Solution of an inte...
Solution of an integral equation encountered in rotation therapy
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- Brahme, Anders (författare)
- Stockholms universitet,Medicinsk strålningsfysik (tills m KI)
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- Roos, Jan-Erik (författare)
- Stockholms universitet,Matematiska institutionen,matematik
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- Lax, Ingemar (författare)
- Stockholms universitet,Medicinsk strålningsfysik (tills m KI)
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(creator_code:org_t)
- 2000-12-06
- 1982
- Engelska.
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Ingår i: Physics in Medicine and Biology. - : IOP Publishing. - 0031-9155 .- 1361-6560. ; 27:10, s. 1221-1229
- Relaterad länk:
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http://www.iop.org/E...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- An integral equation relating the lateral absorbed dose profile of a photon beam to the resultant absorbed dose distribution during single-turn rotating-beam therapy has been set up and solved for the case of a cylindrical phantom with the axis of rotation coinciding with the axis of symmetry of the cylinder. In the first approximation the results obtained are also valid when the axis of rotation is somewhat off-centred, even in a phantom that deviates from circular symmetry, provided the rotation is performed in both clockwise and counter clockwise directions. The calculated dose profiles indicate that improved dose uniformity can be achieved using a new type of non-linear wedge-shaped filter, which can easily be designed using the derived general analytic solution to the integral equation.
Ämnesord
- NATURVETENSKAP -- Matematik -- Matematisk analys (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Mathematical Analysis (hsv//eng)
Nyckelord
- Mathematical analysis
- Analys
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- art (ämneskategori)
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