2.50
Hdl Handle:
http://hdl.handle.net/10541/97240
Title:
Technical note: the measurement of mammographic room protection.
Authors:
Johnson, C H; Walker, Anne
Abstract:
Owing to the inherent design of mammographic X-ray tubes, transmission measurements through the surrounding protective barriers are difficult to obtain using the primary beam. An alternative method has been developed which employs an iodine-125 source. Transmission measurements were obtained through common building materials using both the iodine-125 source and a mammographic X-ray beam generated at 35 kVp. Measurements were converted into an aluminium equivalence, from which correction factors were calculated to convert the aluminium equivalence determined using iodine-125 to the true aluminium equivalence. Average correction factors for samples of glass, chipboard and plasterboard were 1.10, 0.75, and 0.85, respectively.
Affiliation:
North Western Medical Physics Department, Christie Hospital NHS Trust, Manchester, UK.
Citation:
Technical note: the measurement of mammographic room protection. 1994, 67 (797):494-6 Br J Radiol
Journal:
The British Journal of Radiology
Issue Date:
May-1994
URI:
http://hdl.handle.net/10541/97240
DOI:
10.1259/0007-1285-67-797-494
PubMed ID:
8193898
Type:
Article
Language:
en
ISSN:
0007-1285
Appears in Collections:
All Christie Publications

Full metadata record

DC FieldValue Language
dc.contributor.authorJohnson, C Hen
dc.contributor.authorWalker, Anneen
dc.date.accessioned2010-04-23T10:22:08Z-
dc.date.available2010-04-23T10:22:08Z-
dc.date.issued1994-05-
dc.identifier.citationTechnical note: the measurement of mammographic room protection. 1994, 67 (797):494-6 Br J Radiolen
dc.identifier.issn0007-1285-
dc.identifier.pmid8193898-
dc.identifier.doi10.1259/0007-1285-67-797-494-
dc.identifier.urihttp://hdl.handle.net/10541/97240-
dc.description.abstractOwing to the inherent design of mammographic X-ray tubes, transmission measurements through the surrounding protective barriers are difficult to obtain using the primary beam. An alternative method has been developed which employs an iodine-125 source. Transmission measurements were obtained through common building materials using both the iodine-125 source and a mammographic X-ray beam generated at 35 kVp. Measurements were converted into an aluminium equivalence, from which correction factors were calculated to convert the aluminium equivalence determined using iodine-125 to the true aluminium equivalence. Average correction factors for samples of glass, chipboard and plasterboard were 1.10, 0.75, and 0.85, respectively.en
dc.language.isoenen
dc.subject.meshConstruction Materials-
dc.subject.meshFacility Design and Construction-
dc.subject.meshHumans-
dc.subject.meshIodine Radioisotopes-
dc.subject.meshMammography-
dc.subject.meshRadiation Protection-
dc.subject.meshRadiometry-
dc.titleTechnical note: the measurement of mammographic room protection.en
dc.typeArticleen
dc.contributor.departmentNorth Western Medical Physics Department, Christie Hospital NHS Trust, Manchester, UK.en
dc.identifier.journalThe British Journal of Radiologyen
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