Simulation of beta radiator handling procedures in nuclear medicine by means of a movable hand phantom.
In nuclear medicine therapies, people working with beta radiators such as (90)Y may be exposed to non-negligible partial body doses. For radiation protection, it is important to know the characteristics of the radiation field and possible dose exposures at relevant positions in the working area. Besides extensive measurements, simulations can provide these data. For this purpose, a movable hand phantom for Monte Carlo simulations was developed. Specific beta radiator handling scenarios can be modelled interactively with forward kinematics or automatically with an inverse kinematics procedure. As a first investigation, the dose distribution on a medical doctor's hand injecting a (90)Y solution was measured and simulated with the phantom. Modelling was done with the interactive method based on five consecutive frames from a video recorded during the injection. Owing to the use of only one camera, not each detail of the radiation scenario is visible in the video. In spite of systematic uncertainties, the measured and simulated dose values are in good agreement.
Institute of Radiation Research, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany. christoph.blunck@kit.edu
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Blunck
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Becker
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Urban
D001610:Beta Particles; D001696:Biomechanical Phenomena; D002138:Calibration; D003198:Computer Simulation; D006225:Hand / Q000528:radiation effects; D006801:Humans; D009683:Nuclear Medicine / Q000379:methods; D016273:Occupational Exposure / Q000517:prevention & control*; D019047:Phantoms, Imaging; D017785:Photons; D011834:Radiation Monitoring / Q000295:instrumentation*; D011835:Radiation Protection / Q000295:instrumentation / Q000379:methods; D015203:Reproducibility of Results; D014741:Video Recording; D000078329:Workforce; D015019:Yttrium / Q000032:analysis
D015019:Yttrium