For completeness, a summary for Tc99m is given below.
decay process
isomeric decay
Half Life
6 hours
Principal emmission
140kev gamma ray, used for imaging.
Energy
(kev)
Abundance %
Photons
140
88
18
7
Electrons
190
7
120 - 140
10
1.9
11
0.4
124
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Last modified: November 29, 2002
