Radiation Safety Training Basic Radiation Physics Washington State University Radiation Safety Office - * Review. The radiation dose characterizes the energy absorption or the primary, physical action of radiation, which is the first link in the complex reaction chain leading to a biological endpoint. Radiation, flow of atomic and subatomic particles and of waves, such as those that characterize heat rays, light rays, and X rays. radiation. 0000001336 00000 n The concept of radiosensitivity … Several different devices are used to detect and measure radiation, including Geiger counters, scintillation counters (scintillators), and radiation dosimeters ().Probably the best-known radiation instrument, the Geiger counter (also called the Geiger-Müller counter) detects and measures radiation. Radiation causes the ionization of the gas in a Geiger-Müller tube. The three major principles to assist with maintaining doses “As Low As Reasonably Achievable” are … Radioactivity and Radiation P.12.C.3 - Students know nuclear reactions convert a relatively small amount of material into a large amount of energy. OK... you are probably saying, the sun is a big nuclear furnace, so it makes sense that it emits all sorts of electromagnetic radiation. Radiation Therapy. EM Radiation: Photon Model. Electromagnetic radiation can be defined as a form of energy that is produced by the movement of electrically charged particles traveling through a matter or vacuum or by oscillating magnetic and electric disturbance. However, Plank's Law sta… We know that the sun emits visible light (below left), infrared waves, and ultraviolet waves (below right), but did you know that the sun also emits microwaves, radio waves, and X-rays? 0000002531 00000 n Measuring Radiation Exposure. the different types of radiation on the human body. Material properties Mechanical properties quantities that characterize the behavior of a material in response to external, or applied forces quantities that characterize the behavior of a material in response to physical phenomena other than mechanical forces …(e.g. Uses Ionizing Radiation To Direct All Radiation Dose Solely 368159 PPT. File Name: File Size: File Type: index.asp: 33065: ASP File Ionizing_Radiation.ppt: 203264: PPT File MSH_TB_RadiationSafetyPt2.ppt: 1497600: PPT File 0000001773 00000 n WINNER! google_color_bg = "lightyellow"; The Greenhouse Effect (i). //-->, body {margin: 0 0 0 0;} 8-2 Physical mechanism Thermal radiation is one kinds of the electromagnetic radiation, so it is propagated at the speed of light, 310m/s. understand the concept of potential temperature and how it relates to stability, buoyancy frequency and temperature lapse rate understand the concept of radiative-convective equilibrium know the components of the Earth radiation balance understand the concepts of optical depth, radiation intensity, irradi-ance, and transmission of radiation IMi��Hi�OL�X�Z ���W������t�I.x��$r�P�X�J���Cd�9.i�^�%�C���D�GY�"��b9���zˋ}di�s xh1��X�;=�~��0Acl}�֣>�;��{P�_�MO ئ�t��l�7��:P�\2laҍ�$ȏ�Z�B6�f;v'�y���L��xs�*0Ύy��l׆RL�D�Ɠ �����arT�;x�H�W�'’9�A)����W�,�s8�6��%�ՇYk����? trailer << /Size 101 /Info 74 0 R /Root 76 0 R /Prev 331153 /ID[<099c9405723356d897761b9615fa3555><099c9405723356d897761b9615fa3555>] >> startxref 0 %%EOF 76 0 obj << /Type /Catalog /Pages 72 0 R >> endobj 99 0 obj << /S 303 /Filter /FlateDecode /Length 100 0 R >> stream 0000000923 00000 n The field, which is very near to the antenna is reactive near field or non-radiative field where the radiation is not pre-dominant. Once you have successfully completely the quiz at the end of Part I of this training, register for “ Applied Radiation Safety: Part II. Posted by Unknown at 19:13 7 comments: Email This BlogThis! Most nuclei have a deformed axial shape. Introduction to radiation, its occurrence, effect on humans and government regulations in Nigeria to ensure the safety of her citizens. All normal matter at temperatures above absolute zero emits electromagnetic radiation, which represents a conversion of a body's internal thermal energy into electromagnetic energy, and is therefore called thermal radiation.Conversely, all normal matter absorbs electromagnetic radiation to some degree.An object that absorbs ALL radiation falling on it, at all wavelengths, is called a blackbody. A.nav:visited {COLOR: #ffffff; TEXT-DECORATION: none} 1.1.9. The region next to it can be termed as radiating near field or Fresnel’s field as the radiation predominates and the angular field distribution, depends on the physical … Radiation therapy is a type of cancer treatment that uses beams of intense energy to kill cancer cells. .navigation {FONT-SIZE: 11px; COLOR: #FFFFFF; FONT-FAMILY: helvetica, arial;} This chapter introduces some of the major concepts and principles on which environmental physics depends. Polarization and physical phenomena Dichroism and anomalous dispersion I Though the etymology of the word is rather misleading, dichroism is a typical phenomenon of anisotropic media which consists in the fact that the absorption properties of the radiation … Radioactive material is any material that emits, by spontaneous nuclear disintegration, corpuscular or electromagnetic emanations. google_color_text = "000000"; The EMF is a physical field produced by electrically charged objects. 0000005202 00000 n Gamma-radiation is penetrative in a manner similar to x-rays and has similar physical properties. Each individual wave contributes an energy kT to the radiation in the box. Over time, the cells die. 0000004534 00000 n Global Patterns of Insolation Receipts (h). Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Radiation Protection In Diagnostic Radiology PPT ... Medical exposure contributes 99% of man-made radiation exposure to humans. These regulations would facilitate studies using LDR for prevention and treatment of diseases. H�lTMo�0��+戫�`�pm�H�T)��)��opِU��;c�ME+-���xޛa��TN,���D���-js�uҋ���K�۞��CZ��n���nW����l�"�V�\`���~7ߓ�S�yQM�l�%�J�V ,��. This chapter discussed the most important physical and radiological quantities and … The term chemical dose, however, describes only the existence of a chemical substance in this tissue and not the primary reaction yield of this substance. Share to Twitter Share to Facebook Share to Pinterest. IAEA Review of Radiation Oncology Physics: A Handbook for Teachers and Students - 3.2.1 Slide 6 Standard uncertainty: is the uncertainty of a result expressed as standard deviation Type A standard uncertainty is evaluated by a statistical analysis of a series of observations. 0000003969 00000 n ul.nav ul.nav {margin-top: 6px; margin-left: 1.2em; padding-left: 1.2em; line-height: 24px; COLOR: #ffffff;} That was thermal radiation being released by these accelerated particles in the air around that explosion, which we perceived as a an explosion, or fire, but then it was warming up particles on my skin. 1 kilogray 2 megarad Radiation doses should be monitored … built installations and equipment must be used. Radiation is permanently present throughout the environment - in the air, water, food, soil and in all living organisms. The idea here is to explain the physical concepts that produce radiation in terms of electrons flowing on a wire. Standing Ovation Award: "Best PowerPoint Templates" - Download your favorites today! L�40)0�+F0�7p�0L8<1%Xԋ1����c�r� `�r endstream endobj 100 0 obj 305 endobj 77 0 obj << /Type /Page /Parent 71 0 R /Resources 78 0 R /Contents [ 82 0 R 84 0 R 86 0 R 88 0 R 90 0 R 93 0 R 95 0 R 97 0 R ] /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 78 0 obj << /ProcSet [ /PDF /Text ] /Font << /F2 79 0 R /F3 80 0 R /F4 91 0 R >> /ExtGState << /GS1 98 0 R >> >> endobj 79 0 obj << /Type /Font /Subtype /Type1 /Encoding /WinAnsiEncoding /BaseFont /Times-Bold >> endobj 80 0 obj << /Type /Font /Subtype /Type1 /Encoding /WinAnsiEncoding /BaseFont /Times-Roman >> endobj 81 0 obj 554 endobj 82 0 obj << /Filter /FlateDecode /Length 81 0 R >> stream Radiation quantities and units The most important radiation quantities and their units are listed in Table 1.3. Number of personnel assisting RTTs, for example, nurses. google_ad_type = "text_image"; Global Heat Balance: Introduction to Heat Fluxes (k). The fourth type of radiation consists of the neutrons emitted during the fission process. Technological applications based on the manipulations of light include lasers, holography, and fibre-optic telecommunications systems.. In fact, a large proportion of the average annual radiation dose received by people results from natural environmental sources. Radiation Mechanism in Single Wire Antenna. google_ad_client = "pub-4572730101251088"; Atmospheric Effects on Incoming Solar Radiation (g). Antenna (whether it transmits or receives or does both) can be connected to the circuitry at the station through a transmission line. Physical principle of imaging with X-rays. (ii) Additional responsibilities (e.g. E = h c / λ. Ionizing EM Radiation. This property forms the basis of the fields of optics and optical communications and a myriad of related technologies, both mature and emerging. It is usual to select an absorbed radiation level of 25 kGy1 (2.5 Mrad)2, although other levels may be employed provided that they have been validated. Radiation Safety Basic Concepts: Part I This training is the first part of the mandatory Radiation Safety Orientation Training. The cell cycle goes through 5 phases, one of which is the actual Planck's law is a formula for the spectral radiance of an object at a given temperature as a function of frequency (L f) or wavelength (L λ).It has dimensions of power per solid angle per area per frequency or power per solid angle per area per wavelength. The concept of a RMP primarily includes classical medical specialties using ion-izing radiation in health care: diagnostic radiology, interventional radiology (image-guided procedures), radiation oncology and nuclear medicine. Ionizing EM Radiation • EM radiation with wavelengths shorter than 100 nanometers can remove electrons from the outer atomic shells. All presentations are compiled by our Tutors and Institutes. *ALARA concept: to keep exposures “As Low As Reasonably Achievable.” PPT-107-01 Decon is a critical phase since whatever material an emergency responder may have been exposed to could be tracked out of the Hot Zone to cross contaminate support personnel, equipment and apparatus, as … A.nav:hover {COLOR: #000000; TEXT-DECORATION: none; background-color: lightyellow} This Free PowerPoint Template is compatible with All Latest Microsoft PowerPoint Versions and can be also used as Google Slides Themes. Chapter 1 Basic Radiation Physics Concepts and Units of Measurement Page 1-1 1.1 Introduction In this chapter, our discussion begins by reviewing the standard terminology of radiation physics. Genes control how cells grow and divide. google_color_link = "maroon"; CrystalGraphics brings you the world's biggest & best collection of radiation PowerPoint templates. From classical thermodynamics, we know that the radiation in the box is in thermal equilibrium with the walls at temperature T.Radiation is absorbed and quickly reemitted by the walls, which creates oscillations in the frequency of the radiation.The mean thermal kinetic energy of an oscillating atom is 0.5kT. Light transmits spatial and temporal information. An important concept in radiation biology is that the most rapidly dividing cells are the least well differentiated and are the most sensitive to radiation and thus are the most vulnerable to radiation-induced death and injury. The Concept of Temperature (l). Determine process lethality internally at difficult to penetrate locations. 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