Transcription of CT: Shielding and Radiation Protection
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CT: Shielding and Radiation Protection
AAPM 2012 Summer School on Medical Imaging using ionizing RadiationCT: Shielding andRadiation ProtectionJune 28, 2012 James Kofler, Clinic, Rochester, MNJeff Brunette, CHPR adiation SafetyMayo Clinic, Rochester, MNAAPM 2012 Summer School on Medical Imaging using ionizing RadiationNothing to discloseDisclosuresAAPM 2012 Summer School on Medical Imaging using ionizing RadiationLearning Objectives Understand approaches to specifying theshielding requirements for a CT scan room Review three acceptable methods for specs Review Radiation Protection methods for CTpersonnel Review patient Shielding practicesAAPM 2012 Summer School on Medical Imaging using ionizing RadiationAAPM 2012 Summer School on Medical Imaging using ionizing RadiationAAPM 2012 Summer School on Medical Imaging using ionizing RadiationShielding: NCRP Report 147 THE ReferenceDepending on of these could be your best friend!Woof!AAPM 2012 Summer School on Medical Imaging using ionizing Radiation Shielding : PurposeTo limit Radiation exposure to employeesand members of the general public to anacceptable level.
AAPM 2012 Summer School on Medical Imaging using Ionizing Radiation CT Shielding: EXAMPLE • Workload (Body scanner) 175 Patients/work week (35 Patients/day) 1.25 Scans/patient (pre- & post-contrast) 60 Average scan length (cm) 0.5 Gantry rotation time (s) 120 kVp 300 Average effective mAs (Implies 300 mAs at pitch of 1.0) 7.8 Average total ...
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