Radionuclides
Nuclide |
Half-Life |
Decay Mode |
Photon Energy |
Ba-133 |
10.66 yr |
EC |
81 keV 276 keV 303 keV 356 keV* 384 keV |
C-11 |
20.3 min |
β+ |
511 keV |
C-14 |
5730 yr |
β- |
none |
Cs-137 |
30.17 yr |
β- |
32 keV (x-ray) 662 keV* |
Cr-51 |
27.7 days |
EC |
320 keV |
Co-57 |
271.7 days |
EC |
122 keV* 136 keV |
Co-58 |
70.9 days |
EC, β+ |
811 keV |
Cu-64 |
12.7 hr |
β- |
511 keV |
F-18 |
109.8 min |
β+ |
511 keV |
Nuclide |
Half-Life |
Decay Mode |
Photon Energy |
Ga-67 |
78.26 |
EC |
93 keV* 185 keV 300 keV 394 keV |
Ga-68 |
67.7 min |
β+ |
511 keV |
Ge-68 |
271 days |
EC |
107 keV |
In-111 |
67.2 hr |
EC |
23 keV (x-ray) 26 keV (x-ray) 171 keV* 245 keV* |
I-123 |
13.22 hr |
EC |
27 keV (x-ray) 30-32 keV (x-ray) 159 keV* |
I-124 |
4.18 days |
EC, β+ |
27 keV (x-ray) 511 keV 603 keV 723 keV 1691 keV |
I-125 |
59.4 days |
EC |
27 keV (x-ray) 31-32 keV (x-ray) 35 keV |
I-131 |
8.02 days |
β- |
30 keV (x-ray) 80 keV 364.5 keV* 637 keV |
Kr-81m |
13.1 sec |
IT |
190 keV |
Lu-177 |
6.73 days |
β- |
133 keV 210 keV |
Nuclide |
Half-Life |
Decay Mode |
Photon Energy |
Mo-99 |
65.94 hr |
β- |
181 keV 740 keV* 778 keV |
N-13 |
9.97 min |
β+ |
511 keV |
O-15 |
122 sec |
β+ |
511 keV |
P-32 |
14.26 days |
β- |
none |
Ra-223 |
11.4 days |
α |
84 keV 154 keV 270 keV |
Re-186 |
3.72 days |
β- |
137 keV |
Rb-82 |
76.4 sec |
β+ |
511 keV 777 keV |
Sm-153 |
46.3 hr |
β- |
41 keV (x-ray) 47 keV (x-ray) 103 keV* |
Sr-82 |
25.6 days |
EC |
178 keV |
Sr-89 |
50.5 days |
β- |
none |
Nuclide |
Half-Life |
Decay Mode |
Photon Energy |
Tc-99m |
6.02 hr |
IT |
140.5 keV |
Tc-99 |
2.11E+5 yr |
β- |
none |
Tl-201 |
73.1 hr |
EC |
69-82 keV* (x-ray) 135 keV 167 keV |
Xe-133 |
5.24 days |
β- |
31-36 keV (x-ray) 81 keV* |
Y-90 |
64.1 hr |
β- |
none |