Dosimetrist

Phoenix Cyberknife & Arizona Radiation Therapy Specialist is seeking for a Certified Medical Dosimetrist

The Certified Medical Dosimetrist is responsible for designing, calculating, and optimizing individualized radiation treatment plans in collaboration with Radiation Oncologists and Medical Physicists. This position plays a critical role in delivering safe, accurate, and high-quality radiation therapy using advanced treatment technologies, including Varian Ethos, TrueBeam, Cyberknife and TomoTherapy.

The ideal candidate will have strong clinical expertise in treatment planning, image-guided and adaptive radiation therapy, and complex treatment techniques. The Dosimetrist must be able to work independently while collaborating effectively with physicians, physicists, radiation therapists, and the broader multidisciplinary oncology team.

Essential Duties and Responsibilities

Treatment Planning

• Design and generate individualized radiation therapy treatment plans based on physician prescriptions, target volumes, normal tissue constraints, and established clinical protocols.
• Perform treatment planning for a wide range of disease sites using 3D conformal radiation therapy, IMRT, VMAT, SBRT, SRS, and adaptive radiation therapy techniques.
• Utilize advanced planning systems and technology to create safe, efficient, and clinically optimal treatment plans.
• Review and evaluate treatment plans to ensure appropriate target coverage, dose conformity, homogeneity, and adherence to normal tissue constraints.
• Perform dose calculations and plan optimization in accordance with physician directives and departmental standards.
• Participate in physician plan review and make appropriate modifications based on clinical feedback.
• Prepare treatment documentation and communicate plan requirements clearly to the treatment delivery team.

Ethos Adaptive Radiation Therapy

• Develop and optimize treatment plans for patients treated on the Varian Ethos platform.
• Participate in adaptive radiation therapy workflows, including plan preparation, contour review support, plan evaluation, and adaptive treatment planning.
• Collaborate with Radiation Oncologists, Medical Physicists, and Radiation Therapists to support daily adaptive treatment workflows.
• Evaluate adapted treatment plans to ensure clinical objectives, target coverage, and organ-at-risk constraints are met.
• Assist with the development and implementation of standardized workflows, templates, and planning protocols for Ethos adaptive treatments.
• Maintain knowledge of emerging adaptive radiation therapy technologies and best practices.