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Version History
- Example of how to reference this online database:
- Unterweger, M.P. (2003), Radionuclide Half-Life Measurements at the National Institute of Standards and Technology (version 3.0). [Online] Available: http://physics.nist.gov/Halflife [2009, November 7]. National Institute of Standards and Technology, Gaithersburg, MD.
- Citation Form:
- Author/editor (Year), Title (edition). [Type of medium] Available: URL [Access date].
| Version 3.0 April 2003 |
Radionuclides 32P, 99mTc (acid), 103Ru, and 188W were added; and the values for 60Co, 62Cu, 85Kr, 125Sb, 133Ba, 137Cs, 144Ce, 152Eu, 154Eu, 155Eu, 166Ho, 188Re, and 207Bi and the associated references were changed. | |
| Version 2.1 August 2000 |
The value of the half-life of 3H (tritium) was improved from 4504 ± 9 d to 4500 ± 8 d, and the associated reference was changed. | |
| Version 2.0 July 1999 |
Radionuclides 3H, 44Ti, 62Cu, 117mSn, and 177Lu were added and the layout was redesigned. | |
| Version 1.0 May 1997 |
Available online. | |
| NBS SP 626 1982 |
D.D. Hoppes and F.J. Schima NBS Special Publication 626 |
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