E.M. INTERACTION WITH MATTER 1 SCATTERING of E.M. RADIATION Type of scattering depends on the e.m. energy‚ ~! wrt the electron energy: Ionization energy EI Rest-mass energy me c2 2 CLASSICAL MODEL E.M. wave interacting with an oscillating electron Frequency of oscillation is given by Coulomb energy: !02 = kC /me e.m. field adds a driving force at e.m. frequency !‚ F = Radiated power is related to the electron acceleration‚ a 2 ✓ ◆2 !4 2 cE (!02 ! 2 )2 0 cE02 = P/I0 ‚ I0 = The cross-section
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Opportunities such as surgery‚ medicine treatments‚ and multiple therapy options. Radiation therapy has impacted many people’s lives just in the last few years. Cancer patients especially‚ have been given another chance at life through a few treatment rounds. In the past to remove cancerous tumors and small masses‚ surgery was the only option to improve those patients lives; with advances in technology and medicine‚ radiation therapy has become a very likely option for these patients. An option that
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THEORETICAL STUDY ON MICROWAVE ASSISTED BONDING OF POLYMER BASED MICROFLUIDIC DEVICES By KASI BALAMURUGAN MANI A thesis submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN MECHANICAL ENGINEERING WASHINGTON STATE UNIVERSITY School of Mechanical and Materials Engineering May 2013 To the Faculty of Washington State University: The members of the Committee appointed to examine the thesis of KASI BALAMURUGAN MANI‚ find it satisfactory and recommend that it
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other communications device as a result of coupling between transmission circuits. Waveguides - A system of material boundaries in the form of a solid dielectric rod or dielectric-filled tubular conductor capable of guiding high-frequency electromagnetic waves. FTTH – Fiber-to-the-home the fiber reaches the boundary of the living space‚ such as a box on the outside wall of a home in order to provide electronic connection. Simplex – Of or relating to a telecommunications system in which only
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2014-20180280035Electromagnetic Compatibility (EMC) is the ability of electrical equipment to perform efficiently in an electromagnetic environment without being affected or influenced by other devices in its proximity. EMC shielding is a protection provided to electrical and electronic devices to protect them from EMI. EMI refers to the phenomenon where electromagnetic radiation affects the performance of electrical and electronic equipment. EMC shielding is used across many industries because of
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Chapter 13 – States of Matter Pressure (P) – the amount of force per unit area. Pressure=F/a or P=F/a Pascal’s Principle “Any change in pressure at a point on a confined fluid is transmitted throughout the fluid”. Any change is transmitted throughout the fluid. Buoyancy & Archimedes Principle “When an object is submerged in a fluid‚ it displaces a certain volume of that fluid. The amount of force pushing upward on the object is equal to the density of the fluid (Ï) times the acceleration
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metal ions‚ based on each element’s characteristic emission spectrum” (Flame Test 1). Using this test‚ an element can be identified using its emission spectrum‚ or color. An emission spectrum is defined as the spectrum of frequencies of electromagnetic radiation emitted due to an atom’s electrons making a transition from a high energy state to a lower energy state. Since each element has different numbers of electrons‚ each element’s emission spectrum is different. This allows elements to be identified
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telescopes utilize one or more concave mirrors for the objective lens to condense the light and a small lens called an eyepiece. Pg3 Conclusion A telescope is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light). The first known practical telescopes were invented in the Netherlands at the beginning of the 17th century‚ using glass lenses. They found use in terrestrial applications and astronomy. Within a few decades‚ the reflecting
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Acute Radiation Syndrome Acute radiation syndrome which is also sometimes known as radiation sickness or radiation toxicity is an extremely serious illness that occurs when the entire body (or most of it) receives a high dose of penetrating radiation‚ a dose greater than 50 rads‚ in a very short period of time. Studies in animals and humans exposed to radiation have allowed researchers to describe acute radiation syndrome. The most replicative cells are the most sensitive to the acute effects
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How a Microwave Works By Zach Betten [pic] What is a Microwave? A microwave oven or microwave is a kitchen appliance that cooks or heats food by using electromagnetic waves. This happens by using microwave radiation to heat materials such as water and other things within the food. This leads to food being more evenly heated throughout. Basic microwave ovens heat food quickly and efficiently. One setback is that they do not brown or bake food in
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