Method for measurement of vacuum pressure

1,013,818. Radiation vacuum gauges. UNITED STATES ATOMIC ENERGY COMMISSION. April 16, 1963 [June 6,1962], No. 14815/63. Heading G1A [Also in Division H1] A radiation vacuum gauge comprises means for exciting residual gas atoms by electron interaction therewith to produce light quanta, and means for...

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Bibliographische Detailangaben
1. Verfasser:	MCFARLAND ROBERT H
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PHYSICS TESTING
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Zusammenfassung:	1,013,818. Radiation vacuum gauges. UNITED STATES ATOMIC ENERGY COMMISSION. April 16, 1963 [June 6,1962], No. 14815/63. Heading G1A [Also in Division H1] A radiation vacuum gauge comprises means for exciting residual gas atoms by electron interaction therewith to produce light quanta, and means for observing said light quanta as a function of the gas pressure. The vacuum system being gauged, 11 includes an electron gun 13 which projects a beam of electrons across a test region 24. Excited atoms radiate light quanta, which are detected by a photomultiplier 31 the output of which is recorded. To reduce noise effects, the electron gun is fed from a pulse generator 23 and a filter 34 is tuned to the pulse repetition frequency. Optical filters 32 may be used to select particular emission wavelengths for the investigation of partial pressures.