Orthovoltage applicator design: its effect on a transmission monitor chamber.
basic_science · Level V
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- Record sourced from PubMed, PMID 9155078.
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Abstract
In the Pantak DXT300, the applicators are mounted immediately below a transmission monitor chamber. Changing the metals used in applicator construction can cause variations of up to 22% in calibration factor (cGy MU(-1)) and apparent dose rate (MU min(-1)), but has no effect on radiation dose rate (cGy min(-1)). The results are consistent with being caused by backscatter from the applicator to the monitor chamber.
Medical subject headings
- Radiotherapy