PPT-Ionising Radiation

Learning Objectives I must be able to recall when ionising radiation is emitted I should be able to describe the three types of ionising radiation I might be able to explain the dangers of ionising radiation. internal emitter iodine radium strontium tritium cesium absorbed dose rate kg MeV MeV brPage 4br Health effects depend on how radiation interacts w th bio ogical material at the microscopic level Radiation delivers energy in small pa ckets not unifo What about ionising radiation sources that are not work- related? We are all exposed to natural background radiation from sources outside of work, such as: the earth itself; cosmic radiation from . M. anagement &. . E. ducational . . C. onsultancy. . S. ervices .  . “Radiology Update Seminar. for The Dental Team”.  .  .  . Dr. Richard DeCann & Mr. Tim Reynolds. Transfer of Energy as Heat. Energy moves as heat in three ways. Heat is always a transfer of energy from objects at a higher temperature to a lower temperature. There are 3 different ways this transfer of energy can happen. Ionising Radiation Protection and Nuclear Safety ActUnofficial translation1Prepared: 05.09.05 14:27I.GENERAL PROVISIONSArticle 1(purpose and content)(1) This Act shall regulate ionising radiation prot transmitted. absorbed. reflected. 1. transmission. Radiation passes through atmosphere unimpeded.. Shortwave and longwave “windows” . 2. absorption. Energy is transferred to absorber; absorber emits energy. What type of radiation is most harmful It depends on whether your exposure to radiation is internal or external beta particles Radioactive materials thatRadiation can affect the bodyThese adverse hea 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. The cell life cycle The cell cycle G0 = Cell is resting G1 = RNA and proteins are made S = DNA is made G2 = Apparatus for mitosis is built M = Mitosis (the cell divides into 2 cells) G0 phase (restin The facts about food irradiation Food Act 2006 The facts about food irradiation – July 2018 - 2 - Does irradiation affect the food’s nutritional value?All food preservation methods change th Exposure. Dr David J Heslop. Radiation Hazards. Non-ionising:. Electromagnetic spectrum. Ionising:. Alpha. Beta. Gamma. Neutron. X-radiation. Routes of Exposure. Direct exposure (line of sight). Secondary exposure:. . Radiation is the emission of energy in the form of waves or particles. Radiation that is so powerful that it can remove electrons from atoms is called ionizing.. Examples of types of ionizing radiation are x-rays from medical machines and gamma rays from radioactive substances. . •. Radiation biology . is the study of the action of ionizing radiation on living organisms . •The action is very complex, involving physics, chemistry, and biology . –Different types of ionizing radiation . Radiation. Modifying sequence parameters to lower Specific Absorption Rate. A patient with an active implant has been referred for an MRI scan.  . One of the MR Conditions for the implant is a WB SAR limit of 0.4 W/Kg.  Can you describe options...