PPT-Radiation

Protection of Foods Radiation may be defined as the emission and propagation of energy through space or through a material medium Because they destroy microorganisms without appreciably raising the temperature the process is termed . The US Environmental Protection Agency EPA is responsible for advising the government on radiation hazards and regulating certain sources of radioactivity in the environment This booklet provides basic facts about radiation science as well as inform Directed Readings . In the Classroom. May/June 2013 issue . of . Radiologic . Technology. Instructions:. This presentation provides a framework for educators and students to use Directed Reading content published in . Alexandra Atkins. Radiation Therapist. Palmerston North Radiation Therapy Department. Introduction. Massey University Veterinary Teaching Hospital (MUVTH). Palmerston North Regional Cancer Treatment Service. 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. http://www.pi.hitachi.co.jp/rd-eng/product/industrial-sys/accelerator-sys/proton-therapy-sys/proton-beam-therapy/index.html. http://. www.uos.harvard.edu/ehs/radiation/how_dosimeter.shtml. http://www.upmccancercenters.com/cancer/prostate/radbratherapy.html. 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.. . Suzette Turner . Nurse Practitioner. Sunnybrook Health Sciences Centre. Amin . Zagzoog. C. ardiology Resident. University of Toronto. FACULTY/PRESENTER DISCLOSURE. Faculty. : Amin . Zagzoog. From Astronomy To Biomedicine. Light and Matter .  Spectroscopy. . Generalized interactions  Radiation. . Atomic physics. . Astrophysics. . Plasma physics. . Molecular physics. . Biophysics. Radiation Therapy (R/T) For Cancer. About 99% of patients treated with Radiation Therapy (R/T) have malignancies. Approximately 60% of patients with cancer require Radiation Therapy. About 60% get R/T with the aim to cure. Lab 9. Radiation Measurement. We use different terms depending on whether:. The radiation is coming from a radioactive source. The radiation dose absorbed by a person . The risk that a person will suffer health effects from exposure to radiation. 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 is radiation?. Radiation is the giving off of high amounts of energy in the form of particles and/or waves.. The Electroscope. The Geiger Counter. Disposal of Radioactive Wastes. Radiation in Household Products. Radiation refers to the process that is concerned with the passage of energy between places through space. . It is the radiation generated by sun that . regulates the temperature of earth. . . CLASSIFICATION OF RADIATION: ionizing or non-ionizing types. . . 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. .