A Brief Overview
The Dosimetrist I is an entry-level dosimetry professional responsible for developing treatment plans under the
supervision and guidance of senior dosimetrists and medical physicists. This role focuses on applying
fundamental knowledge of anatomy, radiation physics, and oncology principles to create accurate, safe, and
effective treatment plans using established protocols. The Dosimetrist I assists in contouring, dose calculation,
and plan verification, while learning to operate and support the treatment planning and record-and-verify
systems. The individual works collaboratively with physicians, physicists, and therapists to support efficient
patient care. This position emphasizes developing technical proficiency, gaining exposure to complex cases, and
demonstrating sound judgment in clinical decision-making under direct oversight. The Dosimetrist I position
requires completion of a probationary training period, typically 3–6 months as determined by evaluations from
the Director of Physics & Dosimetry, prior to transitioning to a fully remote model. Continued remote work is
contingent upon demonstrated ability to perform all assigned duties effectively and independently. The individual
must commit to a fixed schedule within standard clinic hours (7 am to 6 pm) and remain readily available during
those hours via the department’s preferred communication platform. While the role is designed to function
remotely, the dosimetrist must be able to travel to a UH Seidman Cancer Center Radiation Oncology location
within a reasonable time frame in the event of a network outage, system downtime, or other urgent on-site
needs.

What You Will Do
• Design treatment plans (3D-CRT, IMRT, VMAT, SBRT) to deliver prescribed radiation doses with optimal
beam geometry.
• Contour normal tissues and dose-limiting structures using one or more imaging modalities.
• Perform secondary dose calculations to confirm treatment accuracy.
• Perform image fusion (e.g. MR Brain fusions) across multiple datasets per physician/physicist guidance.
• Create and transfer reference images and localization marks for patient setup verification.
• Transfer and process images between PACS, treatment planning systems, and other image platforms.
• Document all pertinent treatment planning information in the record-and-verify system and electronic
medical record (EMR), following departmental standards.
• Participate as part of the general dosimetry planning pool.
• Contribute to the development of departmental dosimetry policies and procedures under the guidance of
clinical operations leadership.
• Attend required dosimetry meetings, teaching sessions, and departmental seminars.

Additional Responsibilities
• Performs other duties as assigned.
• Complies with all policies and standards.
• For specific duties and responsibilities, refer to documentation provided by the department during
orientation.
• Must abide by all requirements to safely and securely maintain Protected Health Information (PHI) for
our patients. Annual training, the UH Code of Conduct and UH policies and procedures are in place to
address appropriate use of PHI in the workplace.