Barium-133
Characteristics of the radionuclide
Half-life, days: 3848.7 ± 1.2
Photon energy:
| Cs XK α2 | 30.625 keV (34.0±0.4%) |
| Cs XK α1 | 30.973 keV (62.8±0.7%) |
| Cs XK β2 | 34.92-35.26 keV (18.2±0.2%) |
| Cs XK β1 | 35.82-35.97 keV (4.6±0.1%) |
| γ 1 | 53.1622±0.0006 keV (2.14±0.03%) |
| γ 2 | 79.6142±0.0012 keV (2.65±0.05%) |
| γ 3 | 80.9979±0.0011 keV (32.9±0.3%) |
| γ 4 | 276.3989±0.0012 keV (7.16±0.05%) |
| γ 5 | 302.8508±0.0005 keV (18.34±0.13%) |
| γ 6 | 356.0129±0.0007 keV (62.05±0.19%) |
| γ 7 | 383.8485±0.0012 keV (8.94±0.06%) |
The radionuclide 133 Ba is distributed within a ceramic matrix placed in a stainless steel liner. The liner and matrix are placed in a stainless steel capsule with a beryllium window, welded using laser welding.
| Code | Nominal activity * |
Photon flux for Cs KX*, (photons/sec.) 10 -4 steradians |
DxH, mm | dxh, mm | |
| mKi | MBk | ||||
| XBa3.06 | 1 | 37 | 0.3x10 3 | 8x5 | 4x1,2 |
| 3 | 111 | 0.9x10 3 | |||
| 5 | 185 | 1.5x10 3 | |||
| 10 | 370 | 3.0x10 3 | |||
| 20 | 740 | 5.5x10 3 | |||
| 30 | 1110 | 8.0x10 3 | |||
* Permissible variation: ±10%
ISO Classification: C65344
Designated service life: 15 years
Sources of other activity and in other types of housings can be supplied upon special order.
