RADIONUCLIDE
DATA SHEET
SODIUM 22
Chemical Symbol:
Na-22
Half-Life:
2.6018 years
Atomic Number:
11
Decay Constant:
0.266411 years-1
Mass Number:
22 (11 neutrons)
Decay Mode:
Beta
U.S. NRC Exempt Quantity Limit:
10 μCi (370 kBq)
IAEA Exempt Quantity Limit:
27 μCi (1000 kBq)
Gammas From Na-22
Energy (keV)
Intensity (%)
1274.53
99.944
X-rays From Na-22
Energy (keV)
Intensity (%)
Assignment
0.848
0.053
Ne Kα2
0.849
0.106
Ne Kα1
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Na-22 Decay Scheme
Reference(s):
- Health Physics and Radiological Health, 4th Edition by Thomas E. Johnson PhD, Brian K. Birky Ph.D.
- National Nuclear Data Center database - http://www.nndc.bnl.gov/
- Table of Radioactive Isotopes (ToRI) database - http:/nucleardata.nuclear.lu.se/nucleardata/toi/
Prepared by:
Spectrum Techniques, LLC.
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Oak Ridge, TN 37830
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