ELS liquid sources for measuring instrument calibration

Select a radioactive liquid source whose specific activity and packaging meet the requirements of your measurement system.

Benefit from liquid sources characterized using ionization chambers or liquid scintillation analyzers
Rely on calibration values established under Cofrac accreditation
Choose from several available specific activity levels
Select a standard container according to the required useful volume
Adapt the source to your installation with additional geometries available from the catalog or with a container supplied by you
Control the period of use of the calibration values through LEA’s metrological recommendations

Cofrac-accredited calibration values

Tailored activity and geometry

ELS liquid sources are characterized by specific activity, with measurement uncertainty ranging from 1% to 8%, depending on the radionuclide and geometry
Calibration values are established under Cofrac accreditation, scope No. 2-6386
The available specific activity levels are 0.04, 0.4, 40, 800 and 8,000 kBq/g
Type A and B ampoules have useful volumes of 1 and 5 cm³, respectively
Type U, V and W V-Vial containers have useful volumes of 1, 5 and 10 cm³, respectively
Type D, L and J penicillin vials have useful volumes of 1, 5 and 20 cm³, respectively
Type E and F standardized containers each have a useful volume of 50 cm³
The sources can also be supplied in other geometries available from the catalog or in containers provided by the customer
Calibration values are recommended and guaranteed for two radioactive half-lives, up to a maximum of two years
For V-Vial and penicillin vial geometries, this period is limited to three months

Challenges