LIQUID HELIUM TRAP FOR HIGH PUMPING SPEED AT LOW PRESSURES
A description is given of a liquid helium thimble trap which is situated immediately in the evaporation chamber. A pumping speed of 700 to 1000 l/sec is indicated for the trap at pressures in the 10/sup -9/ mm Hg range. (C.J.G.)
- Research Organization:
- IBM Corp., Poughkeepsie, N.Y.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-14-007498
- OSTI ID:
- 4196920
- Journal Information:
- Rev. Sci. Instr., Journal Name: Rev. Sci. Instr. Vol. Vol: 30
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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