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Two‐dimensional dose distribution around a commercial 1 2 5 I seed
Author(s) -
Burns G. S.,
Raeside D. E.
Publication year - 1988
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.596151
Subject(s) - monte carlo method , distribution (mathematics) , physics , imaging phantom , dose rate , materials science , nuclear medicine , mathematics , statistics , optics , medicine , mathematical analysis , medical physics
The Monte Carlo method was used to investigate the dose distribution around a 3M Company model 6711 1 2 5 I seed immersed in a water phantom. Dose rate per unit activity data are presented as a matrix of 63 points surrounding the seed. Relative dose data are presented graphically for two mutually perpendicular directions and compared with the corresponding data for the only other 1 2 5 I seed currently available, the 3M Company model 6702 1 2 5 I seed. The 6711 relative dose distribution decreases more rapidly with distance from the seed than does the 6702 relative dose distribution. Uncertainties in the 6711 seed dose distribution produced by end‐weld thickness variations were investigated and found to be substantial at certain points.