Cs-137 Half-life
Cs-137 Integral Table
| Days | Integral | Ln(Integral) |
| 105 | 19.24 +/- 0.0875 | 2.956 +/- 0.0045 |
| 156 | 22.45 +/- 0.0854 | 3.111 +/- 0.0038 |
| 226 | 3.242 +/- 0.0108 | 1.176 +/- 0.0033 |
| 242 | 22.124 +/- 0.1474 | 3.097 +/- 0.0067 |
Certificate Half-life: 30.0 +/- 0.2 year
