Jerry Clark (Committee Member), Brent Foy (Advisor), Michael Gossman (Committee Member)
Master of Science (MS)
Previous studies on dosimetry show important effects for metal vascular access ports for x-rays and electron beams and moderate to no effects for plastic ports for x-ray beams when ports are in the path of the beam. No previous studies exist regarding the effects of electron beams on vascular access ports other than for those made of metal although it has been suggested that electron beam attenuation through non-metal ports may be possible.
Measurements of relative ionization through the device and adjacent to the device anteriorly and laterally were taken. A clinical particle accelerator delivered typical clinical electron beams of 6, 9, 12, 16, and 20 MeV through the devices. Results showed a noticeable increase in attenuation in the presence of ports, especially for lower energy beams and little or no variation in scattering measurements.
Department or Program
Department of Physics
Year Degree Awarded
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