GETTERING HYDROGEN AT ULTRA-LOW PRESSURES BY EVAPORATED METAL COATINGS
Technical Report
·
OSTI ID:4274487
Results for pumping neutral hydrogen gas in 1-sec pulses by the gettering action of an evaporated coating of molybdenum are presented. One-sec gas in-puts are observed at equivalent purnping speeds > 10/sup 4/ liters/sec at 1 x lO/sup -8/ mm Hg in a 70-liter volume system. Base pressures < 1 x 10/sup - 10/ mm Hg are achieved by gettering with the static evaporated coating and pumping with a 4-in. oil diffusion pump simultaneously. Criteria for choice of gettering metal and a brief outline of pumpin- g requirements for controlled fusion devices called pyrotrons are included. (auth)
- Research Organization:
- California. Univ., Livermore. Lawrence Radiation Lab.
- DOE Contract Number:
- W-7405-ENG-48
- NSA Number:
- NSA-13-007874
- OSTI ID:
- 4274487
- Report Number(s):
- UCRL-5258
- Country of Publication:
- United States
- Language:
- English
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