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Polonium 210

Chemical Symbol: Po-210 Half-Life: 138.376 days
Atomic Number: 84 Decay Constant: 0.005009 days-1
Mass Number: 210 (126 neutrons) Decay Mode: Alpha
U.S. NRC Exempt Quantity Limit: 0.1 μCi (3.7 kBq) IAEA Exempt Quantity Limit: 0.27 μCi (10 kBq)

Gammas From Po-210

Energy (keV)

Intensity (%)
803.10

0.00121

X-rays From Po-210

Energy (keV) Intensity (%)

Assignment

9.184

8.6E-08 Pb Ll
10.450 1.72E-07

Pb Lα2

10.551

1.53E-06 Pb Lα1
11.349 2.43E-08

Pb Lh

12.142

2.39E-08 Pb Lβ6
12.307 6.4E-08

Pb Lβ4

12.611

3.80E-07 Pb Lβ2
12.614 1.06E-06

Pb Lβ1

12.794

7.6E-08 Pb Lβ3
13.015 4.9E-08

Pb Lβ5

14.765

2.21E-07 Pb Lγ1
15.097 2.2E-08

Pb Lγ2

15.178

3.8E-08 Pb Lγ6
15.216 2.7E-08

Pb Lγ3

72.144

4.19E-09 Pb Kα3
72.805 2.73E-06

Pb Kα2

74.969

4.60E-06 Pb Kα1
84.450 5.46E-07

Pb Kβ3

84.938

1.05E-06 Pb Kβ1
85.470 3.06E-08

Pb Kβ5

87.300

3.83E-07 Pb Kβ2
87.580 8.6E-08

Pb Kβ4

Alphas From Po-210

Energy (keV)

Intensity (%)

4516.58

0.00122
5304.38

100

 

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.