Radiation
11/4/2008
“Radiation, as in physics, is energy in the form of
electromagnetic waves or moving subatomic particles emitted by an atom or other
body as it changes from a higher energy state to a lower energy state. Radiation
can be classified as ionizing or non-ionizing radiation, depending
on its effect on atomic matter. The most common use of the word "radiation"
refers to ionizing radiation. Ionizing radiation has enough energy to ionize
atoms or molecules while non-ionizing radiation does not. Radioactive
material is a physical material that emits ionizing radiation.”
Wikipedia:
http://en.wikipedia.org/wiki/Radiation (11/4/2008)
Warning: Sometimes the older links no longer work. Go to the US Patent Patent number search page, copy the Patent number into the search box and search. For the articles, use your browser to go the Journal site.
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Notes
“Electromagnetic radiation (sometimes abbreviated EMR)
takes the form of self-propagating waves in a vacuum or in matter. EM radiation
has an electric and magnetic field component which oscillate in phase
perpendicular to each other and to the direction of energy propagation.
Electromagnetic radiation is classified into types according to the frequency of
the wave, these types include (in order of increasing frequency): radio waves,
microwaves, terahertz radiation, infrared radiation, visible light, ultraviolet
radiation, X-rays and gamma rays. Of these, radio waves have the longest
wavelengths and Gamma rays have the shortest. A small window of frequencies,
called visible spectrum or light, is sensed by the eye of various organisms,
with variations of the limits of this narrow spectrum. EM radiation carries
energy and momentum, which may be imparted when it interacts with matter.”
Wikipedia:
http://en.wikipedia.org/wiki/Radiation (11/4/2008)
Frequency (Hz) Wavelength
********************************************
Gamma-Rays 0.1 A
1019______
_____ 1 A (0.1nm)
1018______
X-rays _____ 1 nm
1017______
_____ 10 nm
1016______
Ultraviolet _____ 100 nm
1015______
Visible _____ 1000 nm 1 µm
1014______
Infrared _____ 10 µm
1013______
Thermal IR _____ 100 µm
1012______
Far IR _____ 1000 µm 1 mm
1011______
Microwaves _____ 1 cm
1010______
_____ 10 cm
109______
_____ 1 m
108______ Radio, TV
_____ 10 m
107______
106______ _____ 100 m
105______ AM
_____ 1000 m
Long waves
(RDC 11/4/2008)
**********************************************
Visible Spectrum
Wavelength
Violet 400 nm
Blue
Green 500 nm
Yellow 600 nm
Red 700 nm
(RDC 11/4/2008)
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Roger D.
Corneliussen
Editor
Telephone: 610 883 0055
rcorneliussen@4spe.org
www.maropolymeronline.com
Copyright 2008 by Roger D. Corneliussen