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Gamma radiation sources: Cobalt-57 / Co-57

57Co
Radionuclide characteristics
Half-life, days: 271.80 ± 0.05
Photon energy:

Fe XKα26.39084 keV (33.2±0.5%)
Fe XKα16.40384 keV (16.8±0.3%)
Fe XKβ7.058-7.108 keV (7.1±0.2%)
γ114.41295±0.00031 keV (9.15±0.17%)
γ2122.06065±0.00012 keV (85.51±0.06%)
γ3136.47356±0.00029 keV (10.71±0.15%)
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 sourcesPenpoint marker sources


Nominal
activity *
DxH, mm d, mm
mCi MBq
0.01-5 0.37-185 8x140 1

* Tolerance: ±10%

ISO classification: C54243

Recommended working life: 15 years

 

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   News
11.07.2018
How difficult is it to design and produce a Mössbauer source?

07.11.2018
The Meeting of the ICRM working group on liquid scintillation spectrometry was held in St. Petersburg from 4 to 5 June. Presentations were made by...

07.04.2018
The 2nd workshop on the use of plastic scintillation microspheres and resins held in Barcelona from 23 to 25 May. The workshop included many presentations and demonstrations of ...

06.19.2018
Mössbauer Spectroscopy in Materials Science Conference, 2018 will take place in Prague (Czech Republic) from June 25 to June 28...

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