Table 2:
Certified activity values for the TCC mixture calibrator solution (EZAG SRS#114539). The certificate reference date is 8/1/2019 12:00:00 PM. Peak energies for which cascade summing affects radionuclide analysis are in italics.
| Radionuclide | Full-Energy Peak (keV) | Branching Ratio (%) | Half-life (days) | Activity (Bq) | Gammas per second | Activity Uncertainty (%) |
|---|---|---|---|---|---|---|
| 241Am | 59.54 | 35.92 | 1.58E+05 | 481.75 | 172.95 | 2 |
| 109Cd | 88.03 | 3.66 | 4.61E+02 | 4348.43 | 160.93 | 3.5 |
| 57Co | 122.07 | 85.6 | 2.72E+02 | 112.82 | 96.57 | 1.8 |
| 139Ce | 165.86 | 79.9 | 1.38E+02 | 154.41 | 123.53 | 2.1 |
| 203Hg | 279.2 | 81.48 | 4.66E+01 | 363.38 | 296.34 | 1.8 |
| 113Sn | 391.7 | 64.97 | 1.15E+02 | 243.19 | 157.99 | 1.8 |
| 134Cs | 604.72 | 97.62 | 7.54E+02 | 540.74 | 527.85 | 1.8 |
| 134Cs | 795.86 | 85.46 | 7.54E+02 | 129.25 | 109.98 | 1.8 |
| 137Cs | 661.66 | 84.99 | 1.10E+04 | 540.74 | 462.22 | 1.8 |
| 54Mn | 834.85 | 99.97 | 3.12E+02 | 306.20 | 306.20 | 1.4 |
| 88Y | 898.04 | 93.7 | 1.07E+02 | 561.47 | 526.24 | 1.4 |
| 65Zn | 1115.54 | 50.22 | 2.44E+02 | 817.14 | 408.87 | 1.4 |
| 88Y | 1836.06 | 99.35 | 1.07E+02 | 561.47 | 557.04 | 1.8 |