Quantcast The Relative Abundance of Tritium
 

Click here to make tpub.com your Home Page

Page Title: The Relative Abundance of Tritium
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Sources of Tritium cont'd - hdbk1132990104
Up
Design Considerations - index
Next
The Radioactive Decay of Tritium


DOE-HDBK-1132-99
1,000 to 1 x 10  6 Ci/yr, respectively, for each 1,000 MW of electrical power.
Commercial producers of radioluminescent and neutron generator devices also
release about 1 x 10  6 Ci/yr. Thus, tritium facilities operate within a background
of tritium from a variety of sources.
The Relative Abundance of Tritium . The isotopes of elemental hydrogen
2.10.3
have long been recognized as being special-- so special, in fact, that each has
been given its own chemical name and symbol. Protium, for example, is the
name given to the hydrogen isotope of mass-1, and the chemical symbol for
protium is H. Deuterium is the name given to the hydrogen isotope of mass-2;
the chemical symbol for deuterium is D. Tritium is the name given to the
hydrogen isotope of mass-3. Its chemical symbol is T.
Protium is by far the most abundant of the hydrogen isotopes. Deuterium
follows next with a relative abundance of about 1 atom of deuterium for every
6,600 atoms of protium; that is, the D to H ratio (D:H) is about 1:6,600. Tritium
is the least common hydrogen isotope. The relative abundance of naturally
occurring tritium (i.e., tritium produced in the upper atmosphere and tritium
injected directly by the sun) has been estimated to be on the order of 1 tritium
atom for every 1018 protium atoms. The introduction of man-made tritium into
the environment, particularly as a result of atmospheric testing, has raised this
level approximately one order of magnitude so that the ambient T to H ratio is
now approximately 1:10  17.
I-89


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.