PPT-1 Effective dose. See Radiation Terms

for explanation 2 Safe For these purposes safe is defined as an activity that is generally considered acceptable It is not intended to imply there is no risk but it is the same or lower than risks from everyday actions An effect is either nonexistent or too small to observe at this level of radiation dose . PARM AUTUMN SYMPOSIUM. October 6 & 7, 2011. Margaret “Peggy” Blackwood, MS, DABR. System Director, Radiation Physics. Radiation Safety Officer. West Penn Allegheny Health System. Radiation safety…we’ve come a long way. Biology. Rad T 290. Objectives – Radiation Biology. Radiosensitivity. Somatic Effects. Embryonic and Fetal Risks. Genetic Effects. Patient Interactions. **Photoelectric**. Classic Coherent Scatter. Centers for Disease Control and Prevention. Office of Public Health Preparedness and Response. Jeffrey B. Nemhauser, MD. Deputy Associate Director for Science. Office of Public Health Preparedness and Response. Radiation Safety/Protection. Medical diagnostic x-rays contribute more to the exposure of the population than do all other man-made sources of radiation. As an occupational radiation worker, you may be exposed to more radiation that the general public.. Fact . vs. Fiction. Disclosures. No financial disclosures for myself or family. No off label uses will be discussed. One exception: I am a radiologist. 25+ years selling . xrays. for a living. Mortgages and college tuition still to pay. . Protection. in . Laboratory. . work. Mats Isaksson, prof.. Department. . of. . radiation. . physics. , GU. mats.isaksson@radfys.gu.se. Fundamental . principles. (ICRP). Justification. Optimisation. Applicability of Radiation-Response Models to Low Dose Protection Standards. October 2, 2018. Alia Zander. Dose and Dose Rate Effectiveness (DDREF) estimates. Research Institution. DDREF Value. United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR). Beside shock blast and heat a nuclear bomb generates high intensity flux of radiation in form of -rays x-rays andneutrons as well as large abundances of short and long-lived radioactive nuclei which c 0720112-1CHAPTER 2FUNDAMENTAL RADIATION CONCEPTSPAGEI What is Radiation2-2IIThe Radioactive Atom2-2IIIRadioactive Decay Modes2-4ABeta Decay2-4BPositron Decay2-4CAlpha Decay2-5CElectron Capture2-5ENucl What are they? . exposure … contamination. Are they the same?. Radioactivity. Spontaneous emission of radiation from the nucleus of an unstable isotope. Disintegration Decay. Demonstrate Decontamination. Laboratory. . work. Mats Isaksson, prof.. Department. . of. . radiation. . physics. , GU. mats.isaksson@radfys.gu.se. Fundamental . principles. (ICRP). Justification. Optimisation. Application. of . R 7/11 3 - 1 CHAPTER 3 RADIATION PROTECTION PAGE I. External Radiation Protection ................................ ................................ .......................... ...... 3 - 3 A. Time .... Table 1 Average CT Scanner Scan type CTDIvol (mGy) DLP (mGy - cm) Effective dose (mrem) Adult head 59.7 1044.3 219 Adult abdomen 14 310.6 525 Adult pelvis 14 310.6 525 Adult chest 8.4 294.0 412 Adult D. A. Low, , W. Lu, , C. A. Perez, MDDepartment of Radiation Oncology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, 4921 Parkview Place, St. Louis, MO 63110, USAJ. A.