High sensitivity leak detection method and apparatus
Patent
·
OSTI ID:6978732
An improved leak detection method is provided that utilizes the cyclic adsorption and desorption of accumulated helium on a non-porous metallic surface. The method provides reliable leak detection at superfluid helium temperatures. The zero drift that is associated with residual gas analyzers in common leak detectors is virtually eliminated by utilizing a time integration technique. The sensitivity of the apparatus of this disclosure is capable of detecting leaks as small as 1 [times] 10[sup [minus]18] atm cc sec[sup [minus]1]. 2 figs.
- DOE Contract Number:
- AC05-84ER40150
- Assignee:
- Southeastern Universities Research Association, Newport News, VA (United States)
- Patent Number(s):
- US 5343740; A
- Application Number:
- PPN: US 8-113718
- OSTI ID:
- 6978732
- Resource Relation:
- Patent File Date: 27 Aug 1993
- Country of Publication:
- United States
- Language:
- English
Similar Records
High sensitivity leak detection method and apparatus
High sensitivity He desorption leak detection method
High sensitivity He desorption leak detection method
Patent
·
Sat Jan 01 00:00:00 EST 1994
·
OSTI ID:6978732
High sensitivity He desorption leak detection method
Journal Article
·
Thu Jul 01 00:00:00 EDT 1993
· Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States)
·
OSTI ID:6978732
High sensitivity He desorption leak detection method
Journal Article
·
Thu Jul 01 00:00:00 EDT 1993
· J. Vac. Sci. Technol. A 11, 1598 (1993)
·
OSTI ID:6978732