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Автор J E O'Connor
Автор D E Malone
Дата выпуска 1988-01-01
dc.description A method of measuring the directional components of electron dose in a material exposed to 8 MV X-rays is described. A hollow wooden spherical shell which is divisible into ten sectors is used. The detector is a conventional thin-walled ionisation chamber. The internal diameter of the shell is large compared with the dimensions of the ionisation chamber. The dose contribution from each sector is separately measured and expressed as a fraction of the full equilibrium dose. The principles of the method are discussed and some correction factors are described. The build-up of dose with thickness of material in each sector is measured and tabulated. The measured data are used to calculate the loss of electron equilibrium at a point in an air channel in an otherwise uniform body.
Формат application.pdf
Издатель Institute of Physics Publishing
Название Measurement of the directional electron contributions to dose in a phantom irradiated by 8 MV X-rays
Тип paper
DOI 10.1088/0031-9155/33/1/003
Electronic ISSN 1361-6560
Print ISSN 0031-9155
Журнал Physics in Medicine and Biology
Том 33
Первая страница 33
Последняя страница 41
Аффилиация J E O'Connor; St. Luke's Hospital, Dublin, Ireland
Аффилиация D E Malone; St. Luke's Hospital, Dublin, Ireland
Выпуск 1

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