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Gamma radiation sources: Europium-152 / Eu-152

152Eu
Radionuclide characteristics
Half-life, days: 4941 ± 7
Photon energy:

Sm XKα239.5229 keV (20.8±0.3%)
Sm XKα140.1186 keV (37.7±0.5%)
Sm XKβ245.289-45.731 keV (11.78±0.19%)
Sm XKβ146.575-46.813 keV (3.04±0.08%)
γ1121.7817±0.0003 keV (28.41±0.13%)
γ2244.6974±0.0008 keV (7.55±0.04%)
γ3344.2785±0.0012 keV (26.58±0.12%)
γ4411.1165±0.0012 keV (2.237±0.010%)
γ5443.965±0.003 keV (3.125±0.014%)
γ6778.9045±0.0024 keV (12.96±0.06%)
γ7867.380±0.003 keV (4.241±0.023%)
γ8964.072±0.018 keV (14.62±0.06%)
γ91085.837±0.010 keV (10.13±0.06%)
γ101089.737±0.005 keV (1.731±0.010%)
γ111112.076±0.003 keV (13.40±0.06%)
γ121212.948±0.011 keV (1.415±0.009%)
γ131299.142±0.008 keV (1.632±0.009%)
γ141408.013±0.003 keV (20.85±0.09%)
152Eu is incorporated in ceramic matrix and sealed in a welded stainless steel capsule.


Code Nominal
activity *
DxH, mm dxh, mm
mCi MBq
GEu2.11 ** 0.0027-0.135 0.1-5 3x3 2.1x1.5
GEu2.12 0.0027-0.135 0.1-5 3x10 2.1x1.5
GEu2.13 0.0027-0.135 0.1-5 4x10 3.1x1.5
GEu2.14 0.0027-0.135 0.1-5 7x10 5x2.5
GEu2.15 0.0027-0.135 0.1-5 8x5 4x1.2

* 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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