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Gamma radiation sources: Cobalt-60 / Co-60

60Co
Radionuclide characteristics
Half-life, days: 1925.23 ± 0.27
Photon energy:

Ni XKα7.46-7.48 keV (0.0098±0.0003%)
Ni XKβ7.058-7.108 keV (0.00136±0.00005%)
γ11173.228±0.003keV (99.85±0.03%)
γ21332.492±0.004 keV (99.9826±0.0006%)
137Cs is incorporated in ceramic matrix and sealed in a welded stainless steel capsule.


Code Nominal
activity *
DxH, mm dxh, mm
mCi MBq
GCo0.11 ** 0.0027-0.135 0.1-5 3x3 2.1x1.5
GCo0.12 0.0027-0.135 0.1-5 3x10 2.1x1.5
GCo0.13 0.0027-0.135 0.1-5 4x10 3.1x1.5
GCo0.14 0.0027-0.135 0.1-5 7x10 5x2.5
GCo0.15 0.0027-0.135 0.1-5 8x5 4x1.2
GCo0.18 0.0027-0.135 0.1-5 30x4.5 8.5x1

* Tolerance: ±10%

** ISO classification: 64344

ISO classification: 64444

Recommended working life: 15 years

Other dimensions and activities are available on request

 

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