Helium resonance lamp and a leak detection system using the lamp
OwnerRobert A. Younginventor
Life of this patent
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Abstract
A helium resonance lamp having a hollow cylindrical body including dielectric walls has a reentrant coaxial hollow element integral within said body and extending from one end thereof with an electrical conductor within said hollow element. A window partially transparent to 584A encloses the other end of said body. A hollow arm is integral with and extends from the body and contains a getter. High purity helium is maintained within the body at a pressure of 0.1 to 100 torr. The lamp is placed within a chamber connected to a vacuum system to be tested. Helium gas is sprayed near the suspected leak in the system. Helium entering the chamber from the system is detected and displayed.
Claims4
Apparatus for detecting gas leaks by the helium leak method in a system comprising
- a helium resonance lamp having an emission at 584A;
- a window in said lamp partially transparent to 584A radiation;
- a helium resonance radiation detector;
- a chamber incorporating said helium lamp and helium resonance radiation detector;
- means for supplying RF power to the He lamp;
- and
- means connected to said detector for displaying the output from said detector.
Dependencies are inferred from the claim text.