<p>Koren Smith – Spring Clinical Meeting</p><p>SAM Questions for MPPG#8 – Linac QA</p><p>1) Which publication is NOT a reference for quality assurance tests for medical linear accelerators?</p><p>1. AAPM TG217, Radiation Dose from Airport Scanners, 2013</p><p>2. WHO, Quality Assurance in Radiotherapy, 1988</p><p>3. AAPM TG40, Comprehensive QA for Radiation Oncology, 1994</p><p>4. IAEA, Setting up a Radiotherapy Program: Clinical, Medical Physics, Radiation Protection and Safety Aspects, 2008</p><p>5. AAPM TG142, Quality Assurance of medical accelerators, 2009</p><p>Answer: (1) AAPM TG217, Radiation Dose from Airport Scanners, 2013</p><p>Reference: </p><p>World Health Organization, Quality Assurance in Radiotherapy, WHO, Geneva (1998)</p><p>G. J. Kutcher et al, “Comprehensive QA for radiation oncology: Report of AAPM Radiation Therapy Committee Task Group 40,” Med. Phys. 21, 581-618 (1994)</p><p>IAEA, Setting up a radiotherapy programme: clinical, medical physics, radiation protection and safety aspects, Austria, 2008</p><p>E. E. Klein et al, “Task Group 142 report: Quality assurance of medical accelerators” Med. Phys. 36 (9), 4197– 4212 (2009)</p><p>2) The ICRU recommends that the dose delivered to the patient be within what percentage of the prescribed dose?</p><p>1. ± 1%</p><p>2. ± 2%</p><p>3. ± 3%</p><p>4. ± 4%</p><p>5. ± 5%</p><p>Answer: (5) ±5%</p><p>Reference: Determination of absorbed dose in a patient irradiated by beams of x- or gamma-rays in radiotherapy procedures,” International Commission on Radiation Units and Measurement Bethesda Report 24, 1976. 3) Which technology is NOT covered under the recommended quality assurance tests in TG 142?</p><p>1. Multileaf Collimation (MLC)</p><p>2. IMRT with Simultaneous Gantry Movement (VMAT/RapidArc)</p><p>3. Asymmetric Jaws</p><p>4. Virtual Wedges</p><p>5. Conebeam CT (CBCT)</p><p>Answer: (2) IMRT with Simultaneous Gantry Movement (VMAT/RapidArc)</p><p>Reference: E. E. Klein et al, “Task Group 142 report: Quality assurance of medical accelerators” Med. Phys. 36 (9), 4197– 4212 (2009)</p><p>4) Who is ultimately responsible for a linear accelerator quality assurance program?</p><p>1. Medical Director</p><p>2. Practice Administrator</p><p>3. Qualified Medical Physicist</p><p>4. Chief Therapist</p><p>5. Service Engineer</p><p>Answer: (3) Qualified Medical Physicist</p><p>Reference: E. E. Klein et al, “Task Group 142 report: Quality assurance of medical accelerators” Med. Phys. 36 (9), 4197– 4212 (2009)</p><p>5) Which of the following is NOT a TG142 recommended Daily QA Test?</p><p>1. Collimator Size Indicator</p><p>2. Photon Beam Profile Constancy</p><p>3. X-Ray Output</p><p>4. Distance Indicator (ODI) </p><p>5. Door Interlock (Beam Off)</p><p>Answer: (2) Photon Beam Profile Constancy</p><p>Reference: E. E. Klein et al, “Task Group 142 report: Quality assurance of medical accelerators” Med. Phys. 36 (9), 4197– 4212 (2009) </p>