Physics questions(1)
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The document outlines key concepts in radiation safety and physics including the three main elements of radiation safety: time, shielding and distance. It also defines several important terms related to radiation and x-rays such as sievert, absorbed dose, and thermionic emission. Additionally, it discusses sources of radiation, the linear attenuation coefficient, components of an x-ray machine, types of stress, and the ALARA principle for radiation safety.
Physics questions(1)
- 1. 1 - Radiation safety elements : time, sheilding and distance. 2 -what are the differences bw the two x-ray types (char and brem) ? 3- Definitions: * Thermionic emission. * Sievert. * Absorbed dose. * Creep. * Atomic Emission * Background Radiation * Thermal Diffusivity * Thermal Conductivity * Ductility. 4- Sources of radiation >> the diagram ( radon , internal . bla bla bla ) + their percentages. 5- I= Io e-μx What is μ? >> Total linear attinuation coef. and its unit ? >> 1/cm What is x ? >> Thickness of material 6- X-ray machine components. 7- The ankle's diagram >> forces 8- Lever classes. 9- Types of stress (tensile , compressive and shear) 10- ALARA; As Low As Reasonably Achievable 13- Refraction, Reflection stuff; the equation (n1sinQ1=n2sinQ2) 14- Properties of laser; (Single wavelength, coherent & collimated) 15- Stress-Strain Diagram (Elastic region, elastic limit, bla bla bla)