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| | | | | | |
| Half-Life of Selected Radioisotopes Radiation Delivery |
| Half-life | Lamda | |
| Isotope | (h) | (h-1) |
| Ag-106 | 0.3993 | 1.7358E+00 |
| Ag-111 | 178.8000 | 3.8767E-03 |
| Au-198 | 64.7040 | 1.0713E-02 |
| Ba-140 | 305.7600 | 2.2670E-03 |
| Ca-47 | 108.7200 | 6.3755E-03 |
| Ce-134 | 72.0000 | 9.6270E-03 |
| Ce-141 | 780.0240 | 8.8862E-04 |
| Co-60 | 46,205.5860 | 1.5001E-05 |
| Cs-137 | 262,980.0000 | 2.6357E-06 |
| Dy-165 | 2.3340 | 2.9698E-01 |
| Dy-166 | 81.6000 | 8.4945E-03 |
| Er-169 | 223.2000 | 3.1055E-03 |
| Ga-67 | 78.2600 | 8.8570E-03 |
| Gd-159 | 18.5600 | 3.7346E-02 |
| H-3 | 108,260.1000 | 6.4026E-06 |
| Ho-166 | 26.8000 | 2.5864E-02 |
| I-125 | 1,443.3600 | 4.8023E-04 |
| I-131 | 192.9600 | 3.5922E-03 |
| I-132 | 2.3000 | 3.0137E-01 |
| In-111 | 67.9200 | 1.0205E-02 |
| In-114 | 0.0200 | 3.4706E+01 |
| Ir-192 | 1,776.4800 | 3.9018E-04 |
| Mg-28 | 20.9100 | 3.3149E-02 |
| Nd-147 | 263.5200 | 2.6303E-03 |
| P-32 | 342.9600 | 2.0211E-03 |
| Pd-100 | 87.1200 | 7.9562E-03 |
| Pd-103 | 407.0400 | 1.7029E-03 |
| Pm-147 | 22,996.7244 | 3.0141E-05 |
| Re-186 | 90.6400 | 7.6473E-03 |
| Re-188 | 16.9800 | 4.0821E-02 |
| Se-72 | 201.6000 | 3.4382E-03 |
| Sm-153 | 46.7000 | 1.4843E-02 |
| Sr-89 | 1,212.0000 | 5.7190E-04 |
| Sr-90 | 255,265.9200 | 2.7154E-06 |
| Tc-99 | 1,867,158,000 | 3.7123E-10 |
| Tl-201 | 73.0560 | 9.4879E-03 |
| Y-90 | 64.0000 | 1.0830E-02 |
| Yb-169 | 768.2400 | 9.0225E-04 |
| School of Health Sciences Purdue University Disclaimer | Last updated: 10 June, 2011 |