Sökning: onr:"swepub:oai:lup.lub.lu.se:b5346f30-bfee-4e0f-921a-2b4008c1f5b2" >
The effects of dive...
-
Ceberg, CristerLund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
(författare)
The effects of divergence and nonuniformity on the x-ray pencil-beam dose kernel
- Artikel/kapitelEngelska1996
Förlag, utgivningsår, omfång ...
Nummerbeteckningar
-
LIBRIS-ID:oai:lup.lub.lu.se:b5346f30-bfee-4e0f-921a-2b4008c1f5b2
-
https://lup.lub.lu.se/record/1110738URI
-
https://doi.org/10.1118/1.597884DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:art swepub-publicationtype
-
Ämneskategori:ref swepub-contenttype
Anmärkningar
-
The scattered-photon part of pencil-beam dose kernels for high-energy x-ray beams can be derived experimentally by differentiating the broad-beam scatter-to-primary dose ratio as a function of radius. Formally, this requires a uniform and parallel beam, and the procedure is complicated by the nonideal, actual beam conditions: the primary dose profile is not uniform, the beam quality is not constant, and the distance to the source is not infinite. The experimentally determined scatter-to-primary ratios can be corrected for these effects before they are differentiated to give the pencil-beam kernels. The correction factors were calculated and shown to reach as much as 5% of the true scatter-to-primary ratio. The effect on the pencil beam was evaluated and corrected pencil beams were determined.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Bjärngard, Bengt E.
(författare)
-
Medicinsk strålningsfysik, LundSektion V
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Medical Physics: Wiley23:9, s. 1531-15350094-2405
Internetlänk
Hitta via bibliotek
Till lärosätets databas