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Point X sources

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Radionuclides are placed between 2 hot-sealed polyester foils approximatly 75 μm thick each, then mounted in a plexiglass ring.

The radiological characteristics of the sources are measured with calibrated Nal scintillators or HPGe semi-conductors.


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EXSB
EXSB © LEA - Cyril Crespeau
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Catalog references

On request

Active Diameter

3 mm  0.12 in

From 3 to 50 mm

From 0.12 to 2 in

Diamètre extérieur

38 mm  1.5 in

From 25 to 75 mm

From 1 to 3 in

Flux 4π sr

16 000 X.s-1

From 1 000 X.s-1 to 400 000 X.s-1

Radionucléide 

55Fe, 109Cd

85Sr, 65Zn

Radionuclide

Flux X 4π sr

K=2 measurement uncertainty

Equivalent activity

Reference

 

Under COFRAC* accreditation

  

109Cd

16 000

X.s-1

≤ 5%

15.7 kBq  0.42 µCi

CD109 EXS B 10

55Fe

16 000

X.s-1

≤ 5%

56.3 kBq  1.5 µCi

FE55 EXS B 10

Standard manufacturing tolerance: ± 30%

IAEA Category : 5 • ISO2919 Classification : C11111

* Scope N°2-6386 available on www.cofrac.fr or upon request.

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