The Australian Commonwealth standard of measurement for absorbed radiation dose, Part 1: control, monitoring and performance of the Urquhart graphite microcalorimeter

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dc.contributor.authorSherlock, SLen_AU
dc.date.accessioned2007-11-22T04:24:05Zen_AU
dc.date.accessioned2010-04-30T04:35:52Zen_AU
dc.date.available2007-11-22T04:24:05Zen_AU
dc.date.available2010-04-30T04:35:52Zen_AU
dc.date.issued1989-08en_AU
dc.description.abstractAs an agent for the Commonwealth Scientific and Industrial Research Organisation, the Australian Nuclear Science and Technology Organisation is responsible for maintenance of the Australian Commonwealth standard of absorbed dose. This standard of measurement has application in radiation therapy dosimetry which is required for the treatment of cancer patients. This report is the first in a series of reports documenting the absorbed dose standard for photon beams in the range from 1 to 25 MeV. The Urquhart graphite micro-calorimeters which is used for the determination of absorbed dose under high energy photon beams has been now placed under computer control. Accordingly a complete upgrade of the calorimeter systems was performed to allow operation in the hospital. In this report control and monitoring techniques have been described with an assessment of the performance achieved being given for 6 and 18 MeV bremsstrahlung beams. Random errors have been reduced to near negligible proportions while systematic errors have been minimized by achieving true quasi-adiabatic operation.en_AU
dc.identifier.citationSherlock, S. L. (1989). The Australian Commonwealth standard of measurement for absorbed radiation dose, Part 1: control, monitoring and performance of the Urquhart graphite microcalorimete (ANSTO/E684). Lucas Heights, NSW: Australian Nuclear Science and Technology Organisation.en_AU
dc.identifier.govdoc534en_AU
dc.identifier.isbn0642598983en_AU
dc.identifier.issn10307745en_AU
dc.identifier.otherANSTO-E-684en_AU
dc.identifier.placeofpublicationLucas Heights, New South Walesen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/524en_AU
dc.language.isoen_auen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.subjectRadioisotopesen_AU
dc.subjectCalorimetersen_AU
dc.subjectCalibrationen_AU
dc.subjectRadiation dosesen_AU
dc.titleThe Australian Commonwealth standard of measurement for absorbed radiation dose, Part 1: control, monitoring and performance of the Urquhart graphite microcalorimeteren_AU
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