Kate Holt (Section 1385)

CIS 50.11C - Cascading Style Sheets

Lesson 5 — Font & Text Properties

(due Wed 9/23)

 

<h1> Radiation Basics

<h2> Ionizing Radiation

<h3> What is Radiation?

<p> Radiation, in general, is energy that travels in the form of electromagnetic waves or high speed particles. Electromagnetic radiation forms a broad, continuous spectrum of energy that includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, x-rays, gamma rays, and cosmic rays. Particle radiation includes alpha and beta particles, neutrons, protons, and heavy ions. Radiation is said to be ionizing if it has sufficient energy to break chemical bonds in molecules or to displace one or more of the electrons that are part of an atom. Common examples of ionizing radiation are x-rays (which are generated by specialized machines or high-voltage devices), alpha, beta, and gamma radiation (which are emitted spontaneously from radioactive materials during radioactive decay), and neutrons (which are emitted during the splitting of atoms in a nuclear reactor).