Evaluation of Zr-V-Fe getter pump for uhv system
Conference
·
OSTI ID:6611129
The nonevaporable getter pump St707 (Zr-V-Fe) from SAES Getters, Inc. may be activated and operated at lower temperatures. However, its application to a UHV system has not been reported yet. This paper reports the characteristics of the St707 getter strip in a UHV system as a linearly distributed pump. The getter is activated at approx. 400/sup 0/C for 30 min. The pumping behavior of the getter strip for H/sub 2/ and CO is studied. The initial pumping speeds for H/sub 2/ and CO are 300 l/sm and 190 l/sm, respectively; and decrease slowly with increasing gas load to approx. 90 l/sm for H/sub 2/ at approx. 50 Tl/m. Hydrogen equilibrium pressure at higher temperature does follow the Sieverts low and is one decade higher than that stated by SAES Getter, Inc. The application of St707 getter strip to the UHV system of ISABELLE is also discussed.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6611129
- Report Number(s):
- BNL-32078; CONF-821111-15; ON: DE83003163
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420700* -- Engineering-- Vacuum Engineering-- (-1987)
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DATA
ELEMENTS
EQUIPMENT
EXPERIMENTAL DATA
GETTERING
GETTERS
HYDROGEN
INFORMATION
LABORATORY EQUIPMENT
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PRESSURE MEASUREMENT
PUMPS
ULTRAHIGH VACUUM
VACUUM PUMPS
420700* -- Engineering-- Vacuum Engineering-- (-1987)
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DATA
ELEMENTS
EQUIPMENT
EXPERIMENTAL DATA
GETTERING
GETTERS
HYDROGEN
INFORMATION
LABORATORY EQUIPMENT
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PRESSURE MEASUREMENT
PUMPS
ULTRAHIGH VACUUM
VACUUM PUMPS