This MedLibrary.org supplementary page on Siegbahn notation is provided directly from the open source Wikipedia as a service to our readers. Please see the note below on authorship of this content, as well as the Wikipedia usage guidelines. To search for other content from our encyclopedia supplement, please use the form below:
Related Sponsors
The Siegbahn notation is used in X-ray spectroscopy to name the spectral lines that are characteristic to elements. It was created by Manne Siegbahn.
The characteristic lines in X-ray emission spectra correspond to electronic transitions where an electron jumps down to an unfilled level in one of the inner shells of an atom. Such a hole in en inner shell may have been produced by bombardment with electrons in an X-ray tube, by other particles as in PIXE, by other X-rays in X-ray fluorescence or by radioactive decay of the atom's nucleus.
The table below show the correspondence between the name of a few lines and the electronic levels.
| Low energy level | High energy level | Name of the line |
|---|---|---|
| K (1s) | L3 (2p3/2) | Kα1 |
| L2 (2p1/2) | Kα2 | |
| M3 (3p3/2) | Kβ1 | |
| L3 (2p3/2) | M5 (3d5/2) | Lα1 |
| L2 (2p1/2) | M4 (3d3/2) | Lβ1 |
| M5 (3d5/2) | N7 (5p3/2) | Mα1 |
This notation is widely used in spectroscopy, but the IUPAC (International union of pure and applied chemistry) recommends another notation.
| Siegbahn notation | IUPAC notation |
|---|---|
| Kα1 | K-L3 |
| Kα2 | K-L2 |
| Kβ1 | K-M3 |
| Lα1 | L3-M5 |
| Lβ1 | L2-M4 |
| Mα1 | M5-N7 |
References
See also
Wikipedia content modification information:
- This page was last modified on 23 June 2008, at 09:01.
Wikipedia Authorship and Review
Wikipedia content provided here is not reviewed directly by MedLibrary.org. Wikipedia content is authored by an open community of volunteers and is not produced by or in any way affiliated with MedLibrary.org.
Wikipedia Usage Guidelines
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article on "Siegbahn notation".
The URL for this specific entry is:
All Wikipedia text is available under the terms of the GNU Free Documentation License. (See Copyrights for details). Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc.