Gamma radiation sources: Cobalt-57 / Co-57
57Co
|
| |
| Fe XKα2 | 6.39084 keV (33.2±0.5%) |
| Fe XKα1 | 6.40384 keV (16.8±0.3%) |
| Fe XKβ | 7.058-7.108 keV (7.1±0.2%) |
| γ1 | 14.41295±0.00031 keV (9.15±0.17%) |
| γ2 | 122.06065±0.00012 keV (85.51±0.06%) |
| γ3 | 136.47356±0.00029 keV (10.71±0.15%) |
Reference data:
Update of x ray and gamma ray decay data standards for detector calibration and other applications (IAEA), volume 1, 2007
Disk sources: 57Co is incorporated in ceramic matrix and sealed in a welded stainless steel capsule.
Penpoint marker sources: 57Co is incorporated in ceramic matrix and sealed in beryllium capsule with alluminium alloy holder. The source is supplied with brass cap to transport and storage.
| Disk sources | Penpoint marker sources |
| Code | Nominal
activity * | DxH, mm | dxh, mm | |
| mCi | MBq | |||
| GCo7.11 ** | 1-50 | 37-1850 | 3x3 | 2.1x1.5 |
| GCo7.12 | 1-50 | 37-1850 | 3x10 | 2.1x1.5 |
| GCo7.13 | 50-70 | 1850-2590 | 4x10 | 3.1x1.5 |
| GCo7.14 | 50-100 | 1850-3700 | 7x10 | 5x2.5 |
| GCo7.15 | 1-70 | 37-2590 | 8x5 | 4x1.2 |
| GCo7.16 | 10-100 | 370-3700 | 10x5 | 8.5x1 |
| GCo7.17 | 10-100 | 370-3700 | 12x3 | 8.5x1 |
* Tolerance: ±10%
** ISO classification: Ñ64344
ISO classification: Ñ64444
Recommended working life: 15 years
Other dimensions and activities are available on request
