2.50
Hdl Handle:
http://hdl.handle.net/10541/99803
Title:
The efficacy of lead shielding in megavoltage radiotherapy.
Authors:
Marrs, Julie E; Hounsell, Alan R; Wilkinson, James M
Abstract:
The dose received by anatomical structures which are apparently shielded by lead blocks during a course of megavoltage radiotherapy may not be negligible. The dose has three main components; there is that due to radiation transmitted through the shielding block, that due to radiation scattered within the patient and that due to radiation scattered prior to reaching the patient and so circumventing the shield. A calculation method which separates the three components has been investigated and the results have been compared with measurements in a wide range of test situations for both cobalt-60 and 6 MV photon beams. The method of calculation predicts the dose behind the shielding block with acceptable accuracy in all the conditions investigated.
Affiliation:
North Western Medical Physics Department, Christie Hospital, Manchester, UK.
Citation:
The efficacy of lead shielding in megavoltage radiotherapy. 1993, 66 (782):140-4 Br J Radiol
Journal:
British Journal of Radiology
Issue Date:
Feb-1993
URI:
http://hdl.handle.net/10541/99803
DOI:
10.1259/0007-1285-66-782-140
PubMed ID:
8457827
Type:
Article
Language:
en
ISSN:
0007-1285
Appears in Collections:
All Christie Publications

Full metadata record

DC FieldValue Language
dc.contributor.authorMarrs, Julie Een
dc.contributor.authorHounsell, Alan Ren
dc.contributor.authorWilkinson, James Men
dc.date.accessioned2010-05-25T11:50:30Z-
dc.date.available2010-05-25T11:50:30Z-
dc.date.issued1993-02-
dc.identifier.citationThe efficacy of lead shielding in megavoltage radiotherapy. 1993, 66 (782):140-4 Br J Radiolen
dc.identifier.issn0007-1285-
dc.identifier.pmid8457827-
dc.identifier.doi10.1259/0007-1285-66-782-140-
dc.identifier.urihttp://hdl.handle.net/10541/99803-
dc.description.abstractThe dose received by anatomical structures which are apparently shielded by lead blocks during a course of megavoltage radiotherapy may not be negligible. The dose has three main components; there is that due to radiation transmitted through the shielding block, that due to radiation scattered within the patient and that due to radiation scattered prior to reaching the patient and so circumventing the shield. A calculation method which separates the three components has been investigated and the results have been compared with measurements in a wide range of test situations for both cobalt-60 and 6 MV photon beams. The method of calculation predicts the dose behind the shielding block with acceptable accuracy in all the conditions investigated.en
dc.language.isoenen
dc.subject.meshCobalt Radioisotopes-
dc.subject.meshHumans-
dc.subject.meshLead-
dc.subject.meshRadiation Dosage-
dc.subject.meshRadiation Protection-
dc.subject.meshRadiotherapy, High-Energy-
dc.titleThe efficacy of lead shielding in megavoltage radiotherapy.en
dc.typeArticleen
dc.contributor.departmentNorth Western Medical Physics Department, Christie Hospital, Manchester, UK.en
dc.identifier.journalBritish Journal of Radiologyen
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