Review of collimators for radiology board exams and nuclear medicine board exams including the ABR Core Exam.  Essential details of the physics of parallel hole, converging/diverging, and pinhole collimators are discussed. Mentioned in this episode:Board VitalsRadiology residents—get ready for the ABR CORE Exam with BoardVitals! Access over 1,300 high-yield questions, detailed explanations, and adaptive learning. Study anytime with the mobile app, customize by subject, and track progress. Plus, a 100% pass guarantee! Start your free trial at BoardVitals.com and use code RADREVIEW for 10% off Radiology question banks.