Technique for observing magnet normalcies
The availability of a continuous fast responding linear liquid level indicator! has made possible the measurement of fluctuations of the surface of a liquid helium bath. Liquid level fluctuations can be caused by such things as mechanical vibrations, thermoacoustic oscillations, boiling effects due to constant and nonconstant heat leaks, dewar pressure changes, and normal state transitions in superconducting magnets. Observation of changes in the liquid surface is particularly important in large superconducting magnet dewars where one needs as many clues as possible to indicate the statue of the magnet and cryogenic system. This paper gives some information about the detector and level fluctuations in helium which may be useful to others.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 7342227
- Report Number(s):
- ORNL-TM--3886; CONF-720513--9
- Country of Publication:
- United States
- Language:
- English
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420201 -- Engineering-- Cryogenic Equipment & Devices
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700202* -- Fusion Power Plant Technology-- Magnet Coils & Fields
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CRYOGENIC FLUIDS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELEMENTS
EQUIPMENT
FLUIDS
HELIUM
IMP DEVICE
LEVEL INDICATORS
MAGNETIC MIRRORS
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MEASURING INSTRUMENTS
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NONMETALS
OPEN PLASMA DEVICES
RARE GASES
SUPERCONDUCTING DEVICES
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THERMONUCLEAR DEVICES
TRANSIENTS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700202* -- Fusion Power Plant Technology-- Magnet Coils & Fields
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CRYOGENIC FLUIDS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELEMENTS
EQUIPMENT
FLUIDS
HELIUM
IMP DEVICE
LEVEL INDICATORS
MAGNETIC MIRRORS
MAGNETS
MEASURING INSTRUMENTS
MONITORING
NONMETALS
OPEN PLASMA DEVICES
RARE GASES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
THERMONUCLEAR DEVICES
TRANSIENTS