Transit dosimetry - Open Access .click

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Lead-polystyrene transition zone dosimetry in high-energy photon beams

Radiotherapy and Oncology, 1988
In order to study the dose enhancement under sheets of lead positioned directly on the skin of patients, parallel-plate ionization chamber measurements in high-energy photon beams (4-15 MV) were performed below a lead-polystyrene interface. The dose in the transition zone can be much higher or lower than in the situation with full buildup of ...
B J, Mijnheer, R K, Rice, L M, Chin
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Transit-Dose Measurements in Cobalt-60 Rotation Therapy Dosimetry

Radiology, 1958
In recent years there has been a growing interest in all forms of rotational or moving-field therapy, and many different types of therapy machines designed for this kind of treatment have become available. To the medical radiation physicist, the dosimetry of rotation therapy has presented a number of interesting problems, and much useful work has been ...
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Application of a practical method for the isocenter pointin vivodosimetry by a transit signal

Physics in Medicine and Biology, 2007
This work reports the results of the application of a practical method to determine the in vivo dose at the isocenter point, D(iso), of brain thorax and pelvic treatments using a transit signal S(t). The use of a stable detector for the measurement of the signal S(t) (obtained by the x-ray beam transmitted through the patient) reduces many of the ...
Piermattei A. +22 more
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Commissioning and Validation Method of the Quality Control System of Radiation Therapy Plans Based on Transit Dosimetry