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Diode dosimetry of 103Pd model 200 seed in water phantom
D P Fontenla1, M Ahmad, S T Chiu-Tsao
1Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York 10021.
Medical Physics
|June 1, 1994
Abstract:
The relative dose distribution around the 103Pd model 200 implant seed was measured with a computerized data acquisition system employing a p-n junction silicon diode immersed in a water phantom. Data are acquired in polar coordinates by computer control of (1) the diode distance from the seed center and (2) the rotation angle of seed about a transverse axis. Transverse axis data are compared with thermoluminescent dosimeter (TLD) measurements and a Monte Carlo calculation by others.