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Methods for the determination of effective monitor chamber thickness
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.
1999 (English)In: Medical physics (Lancaster), ISSN 0094-2405, Vol. 26, no 9, 1871-1873 p.Article in journal (Refereed) Published
Abstract [en]

There are a number of models, both analytical and Monte Carlo, which are used to describe the fluence from the treatment head of accelerators. One common problem in these simulations is to find relevant information about details in the treatment head. A complex unit in the treatment head for which reliable data is seldom given is the monitor chamber. In this work two methods are described for obtaining this information by analyzing the increased scattering of an electron beam when the monitor chamber is introduced in the beam. It was found that the effective thickness of the electrodes in a monitor chamber can be determined with sufficient accuracy by using experimental results combined with Fermi-Eyges theory or Monte Carlo simulations. (C) 1999 American Association of Physicists in Medicine. [S0094-2405(99)01009-3].

Place, publisher, year, edition, pages
1999. Vol. 26, no 9, 1871-1873 p.
Identifiers
URN: urn:nbn:se:umu:diva-39946ISI: 000082632200017OAI: oai:DiVA.org:umu-39946DiVA: diva2:396907
Available from: 2011-02-11 Created: 2011-02-11 Last updated: 2017-12-11

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Karlsson, Mikael

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