Medical Dosimetrists

Key Responsibilities

• Calculate, or verify calculations of, prescribed radiation doses.
• Measure the amount of radioactivity in patients or equipment, using radiation monitoring devices.
• Identify and outline bodily structures, using imaging procedures, such as x-ray, magnetic resonance imaging, computed tomography, or positron emission tomography.
• Fabricate beam modifying devices, such as compensators, shields, and wedge filters.
• Advise oncology team members on use of beam modifying or immobilization devices in radiation treatment plans.
• Fabricate patient immobilization devices, such as molds or casts, for radiation delivery.
• Calculate the delivery of radiation treatment, such as the amount or extent of radiation per session, based on the prescribed course of radiation therapy.
• Educate patients regarding treatment plans, physiological reactions to treatment, or post-treatment care.
• Develop radiation treatment plans in consultation with members of the radiation oncology team.
• Create and transfer reference images and localization markers for treatment delivery, using image-guided radiation therapy.
• Develop treatment plans, and calculate doses for brachytherapy procedures.
• Plan the use of beam modifying devices, such as compensators, shields, and wedge filters, to ensure safe and effective delivery of radiation treatment.
• Record patient information, such as radiation doses administered, in patient records.
• Conduct radiation oncology-related research, such as improving computer treatment planning systems or developing new treatment devices.
• Perform quality assurance system checks, such as calibrations, on treatment planning computers.
• Teach medical dosimetry, including its application, to students, radiation therapists, or residents.
• Develop requirements for the use of patient immobilization devices and positioning aides, such as molds or casts, as part of treatment plans to ensure accurate delivery of radiation and comfort of patient.
• Supervise or perform simulations for tumor localizations, using imaging methods such as magnetic resonance imaging, computed tomography, or positron emission tomography scans.
• Design the arrangement of radiation fields to reduce exposure to critical patient structures, such as organs, using computers, manuals, and guides.