nuclear hydrogen detection meter

English

Noun

nuclear hydrogen detection meter (plural nuclear hydrogen detection meters)

1. (roofing) A device that contains a radioactive source to emit high velocity neutrons into a roof system. Reflecting neutrons are measured by a gauge that is used to detect hydrogen; the quantity of hydrogen detected may be linked to the pressure of water.

References

• "Nuclear Roof Moisture Surveys"
• "nuclear hydrogen detection meter"
• "F.A.Q.: WHY TEST A FLAT ROOF?"