Recent leak telescope development

The development of the leak telescope as a tool for detecting minute leaks inside a vacuum chamber is described. A more detailed model for the leak telescope that takes into account a variety of real-life effects has been developed. The model was experimentally verified and refined. Experimental res...

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Bibliographic Details
Published inIEEE Thirteenth Symposium on Fusion Engineering pp. 533 - 537 vol.1
Main Authors Fisher, M.V., Jensen, T.H., Puhn, F.A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1989
Subjects
Collimators
Detectors
Ionization
Leak detection
Solids
Telescopes
Testing
Tokamaks
Vacuum systems
Wheels
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Summary:The development of the leak telescope as a tool for detecting minute leaks inside a vacuum chamber is described. A more detailed model for the leak telescope that takes into account a variety of real-life effects has been developed. The model was experimentally verified and refined. Experimental results demonstrated that a fairly primitive leak telescope can detect the position of relatively small leaks (i.e. 1*10/sup -5/ torr-l/s) at large distances (i.e. 1 m) in high vacuum (i.e. 1*10/sup -7/ torr). The concept of an oscillating leak telescope holds promise for even better performance.< >
DOI:10.1109/FUSION.1989.102276