Comparison of TG-43 dose calculations to pinpoint ion chamber and diamond detector measurements.
Brachytherapy is an area of radiation therapy where the availability of high-resolution detectors with a low energy-dependence is of great importance. The suitability of two detectors is investigated in this study. Measurements in the proximity of an Ir-192 source were performed with a diamond detector type 60003 and a pinpoint chamber type 31006 (both PTW-Freiburg). For comparison, dose values were calculated with the dose calculation formalism recommended by the task group 43 (Nath et al 1995 Med. Phys. 22 209-34).
Laub
Wolfram U
WU
Department of Medical Physics, University of Tübingen, 72076 Tübingen, Germany.
D001918:Brachytherapy / Q000379:methods / Q000592:standards*; D018130:Diamond; D019544:Equipment Failure Analysis / Q000379:methods / Q000592:standards; D005858:Germany; D007496:Iridium Radioisotopes; D011786:Quality Control; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D012680:Sensitivity and Specificity; D014481:United States
D007496:Iridium Radioisotopes; D018130:Diamond