Measuring dose distributions for enhanced dynamic wedges using a multichamber detector array.
This paper investigates measuring dose distributions for enhanced dynamic wedges (EDWs) using a commercial multichamber detector array. The technical aspects of using the chamber array, including chamber calibration, selection of measurement parameters, and use of the reference chamber, have been fully investigated. The measurement results from the chamber array were also confirmed by those from the single chamber and radiographic film measurements. The results reported here showed that proper operation of the chamber array is essential to measure dose accurately for the EDW fields; the chamber detector array can be used more efficiently than a single chamber without compromising the dose measurement accuracy.
Liu
H H
HH
Division of Radiation Oncology, Mayo Clinic and Foundation, Rochester, Minnesota 55905, USA. liu.helen@mayo.edu
Lief
E P
EP
McCullough
E C
EC
D055592:Biophysical Phenomena; D001703:Biophysics; D005069:Evaluation Studies as Topic; D006801:Humans; D009369:Neoplasms / Q000532:radiotherapy; D011874:Radiometry / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D011880:Radiotherapy Planning, Computer-Assisted / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D011882:Radiotherapy, High-Energy / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D013679:Technology, Radiologic / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data