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Level Measurement · Glossary

What is Radiometric Level Measurement?

gamma source and detectorLevel Measurement

Radiometric level measurement uses a gamma source and a detector outside the vessel; the liquid absorbs radiation as level rises.

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Radiometric Level Measurement Explained

A shielded source, commonly Cs 137 or Co 60, sends a beam through the vessel to a detector on the other side. More liquid in the path means less radiation reaches the detector.

Nothing is installed inside the vessel, so it suits extreme temperature, pressure, toxic or abrasive processes. Sources need licensing, shielding and trained handling.

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Calculators for Radiometric Level Measurement

CalculatorTank Volume CalculatorFree online calculator with formula and worked example.

Frequently Asked Questions

What is Radiometric Level Measurement?

Radiometric level measurement uses a gamma source and a detector outside the vessel; the liquid absorbs radiation as level rises.

Is radiometric level safe?

Yes, when installed and handled under the licence and radiation safety rules; the dose outside the shielded area is low.

Does build up on the wall matter?

Yes, deposits absorb radiation and read as level; recalibrate or compensate.

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More Level Measurement Terms

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All level measurement terms · Full glossary A to Z

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