Benchmark measurements for lung dose corrections for X-ray beams.
A well defined set of clinically relevant reference measurements for photon dose calculations in the presence of the lung have been provided. These benchmark data were mainly obtained in low-density (rho = 0.31 gcm-3) lunglike material as well as in waterlike plastic for 4 and 15 MV X-ray beams. Some additional measurements were performed with materials having a density of 0.015 gcm-3 and 0.18 gcm-3. Phantom geometries included simple layered geometries, finite lung cross section geometries, simulated mediastinum geometries, and simulated tumor in lung geometries. The data are reported as central axis depth doses. A number of parameters were varied, including the field size, the lung geometry, and the distance in and behind the lung.
Rice
R K
RK
Joint Center for Radiation Therapy, Harvard Medical School, Boston, MA 02115.
Mijnheer
B J
BJ
Chin
L M
LM
D006801:Humans; D008175:Lung Neoplasms / Q000532:radiotherapy*; D008961:Models, Structural; D011879:Radiotherapy Dosage