In my previous role at XYZ Hospital, I was responsible for developing and optimizing radiation therapy plans for cancer patients. I utilized advanced software to calculate dose distributions and ensure accurate targeting of tumors while minimizing exposure to healthy tissues. My experience includes collaborating with oncologists and radiation therapists to tailor treatment plans to individual patient needs, ensuring both safety and efficacy.

I adhere to strict protocols and regularly review the latest guidelines from regulatory bodies such as the NRC and ACR. I conduct regular audits of radiation safety procedures and equipment, and provide training to staff to ensure they understand and follow best practices. By maintaining meticulous records and staying abreast of updates, I ensure our facility remains in compliance with all relevant regulations.

I employ a variety of dosimetry techniques, including ion chamber measurements, thermoluminescent dosimeters (TLDs), and radiochromic film. These methods allow for precise measurement and verification of radiation doses delivered during treatments. I also use Monte Carlo simulations to model complex dose distributions and validate treatment plans, ensuring accuracy and safety.

In such critical situations, my immediate priority is to assess the impact and ensure the patient's safety. I would review the treatment plan, equipment logs, and dosimetry data to determine the cause. Collaborating with the medical team, we would develop a corrective action plan and follow up with the patient to monitor any potential effects. Additionally, I would conduct a root cause analysis to prevent future occurrences.

My experience includes developing and implementing comprehensive QA programs for medical imaging and radiation therapy. I conduct regular performance checks on equipment, validate treatment plans, and ensure all staff are trained in QA procedures. I also lead multidisciplinary meetings to review outcomes and refine protocols, aiming to continuously improve patient care and safety.