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Gas sources

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LEA produces 85Kr gas and other radionuclides on request (133Xe…) packaged in glass ampoules or in metal cylinders.

Gas sources are used in detection metrology, as part of the environmental monitoring of releases from nuclear facilities.

Associated measurement systems are mainly ionization chambers, Geiger Muller detectors or atmospheric monitors installed on process lines.


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Our 85Kr sources (ampoules or cylinders) are considered as unsealed sources.
Manufacturing tolerance are ± 30%. The uncertainty associated with the measurement of volume activity is ± 5% at k=2.
The default pressure in metal bottles is 100 bar. The pressure in the ampoules is lower than 0.5 bar.

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EZSE
EZSE © LEA - Cyril Crespeau

Radionuclide

Volume Activity

k=2 measurement uncertainty

Equivalent activity

Reference

 
 

Under COFRAC* accreditation

  

85Kr

0.2 kBq/cm3  0.005 µCi/cm3

5%

100 MBq  2 703 µCi

KR85 EZS E 20

 
       

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

  
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EZSA
EZSA ©LEA - Cyril Crespeau

Radionuclide

Volume Activity

k=2 measurement uncertainty

Reference

85Kr

240 kBq  6.5 µCi

5%

KR85 EZS A 40

120 000 kBq  3 243 µCi

5%

KR85 EZS A 60

LEA also offers SG500 or SG3000 gas containers, equipped with sampling probes and mounted staubli fittings. 

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