Electromagnetic Radiation
Found 10 free book(s)Chapter 2 The Properties of Electromagnetic Radiation
radiojove.gsfc.nasa.govElectromagnetic radiation transports energy from point to point. This radiation propagates (moves) through space at 299,792 km per second (about 186,000 miles per second). That is, it travels at the speed of light. Indeed light is just one form of electromagnetic radiation. Some other forms of electromagnetic radiation are X-rays, microwaves ...
Black Body Radiation
physics.ucf.eduelectromagnetic radiation. Therefore this radiation must be emitted in small packets, each containing DE. He then suggested that each energy of radiation will have its own frequency. Therefore he no longer thought of radiation from an object as continuous. He said it consisted of a series of "packets" of energy.
High Frequency Radiation and Human Exposure
www.who.intthem to electromagnetic radiation. The exposure levels are generally low, because the communication system made up from the mobile phone and base station is considered low-power system. The consensus of the scientific community is that the power from these mobile base stations antennas is far too low to produce health hazards as long as the ...
The electromagnetic spectrum
cesar.esa.intThe Electromagnetic Spectrum 8 CESAR’s Booklet Table 1: Examples of astronomical sources emitting in each range of the electromagnetic spectrum. Type of radiation Temperature Typical sources Gamma-rays >108 K Matter falling into black holes X-rays 106-108 K Gas in clusters of galaxies Supernova remnants Stellar coronae
ICNIRP GUIDELINES
www.icnirp.orgGUIDELINES FOR LIMITING EXPOSURE TO ELECTROMAGNETIC FIELDS (100 kHz to 300 GHz) International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1. Abstract—Radiofrequency electromagnetic fields (EMFs) are used to enable a number of modern devices, including mobile telecom-munications infrastructure and phones, Wi-Fi, and …
Electromagnetic Radiation (EMR) and Remote Sensing
www.edc.uri.eduElectromagnetic Radiation (EMR) • is radiated by atomic particles at the source (the Sun), • propagates through the vacuum of space at the speed of light, • interacts with the Earth's atmosphere, • interacts with the Earth's surface, • interacts with …
Electromagnetic Pulse (EMP)
www.doh.wa.govElectromagnetic Pulse (EMP) September 2003 Fact Sheet 320-090 Division of Environmental Health Office of Radiation Protection WHAT IS EMP AND HOW IS IT CREATED? The most important mechanism for Electromagnetic Pulse (EMP) production from a nuclear detonation is the ionization of air molecules by gamma rays generated from the explosion.
OET Bulletin 65
transition.fcc.govEnergy density (electromagnetic field). The electromagnetic energy contained in an infinitesimal volume divided by that volume. Exposure. Exposure occurs whenever and wherever a person is subjected to electric, magnetic or electromagnetic fields other than those originating from physiological processes in the body and other natural phenomena.
A Guide to IR/PIR Sensor Set-Up and Testing
www.egr.msu.eduinfrared radiation. The operation starts by emitting a pulsed light beam from the transmitter and sending it back out to the scanning field. When the beam strikes an object, the infrared beam is interrupted. Thus, the light beam returns to the receiver with an angle after the reflection, then the receiver sends a high output signal.
Electromagnetic Fields Fact Sheet
www.ehs.iastate.eduWith the introduction of electricity into homes and businesses, the potential for Electromagnetic Field (EMF) exposure has significantly increasedEMFs are created anywhere electricity is . generated, transmitted or used. Characteristics of Electromagnetic Fields . EMF is a combination of electrical and magnetic fields.