PAA Ba-133
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Ba-133 source lines
Ba-133 undergoes electron capture to Cs-133. 86% of the time it ends up in the 1/2+ , 437 keV excited state of Cs-133.
| Energy(keV) | Intensity(rel) |
| 53.1625( 6) | 2.199(22) |
| 79.6139(13) | 2.62( 6) |
| 80.9971(12) | 34.06(27) |
| 160.6109(17) | 0.645( 8) |
| 223.2373(14) | 0.450( 4) |
| 276.3997(13) | 7.164(22) |
| 302.8510( 6) | 18.33( 6) |
| 356.0134( 6) | 62.05(19) |
| 383.8480(12) | 8.94( 3) |