Flash-type Getter Pump for Evacuation of the Large Volume Apparatus

TAKAYUKI HAYAKAWA

doi:10.5702/massspec1953.11.42

TAKAYUKI HAYAKAWA

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JOURNAL FREE ACCESS

1963 Volume 11 Issue 22 Pages 42-45

DOI https://doi.org/10.5702/massspec1953.11.42

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Published: September 25, 1963 Received: August 22, 1962 Available on J-STAGE: June 28, 2010 Accepted: - Advance online publication: - Revised: -
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Date of correction: June 28, 2010 Reason for correction: - Correction: ABSTRACT Details: Wrong : Utilization of the flash-type titanium getter pump for evacation of the large volume apparatus was studied. The testing appratus consists of the getter pump chamber, an auxiliary diffusion pump and a mass-spectrometer used to analyze the residual gases. The pumping speed for air is 1000l/sec to 1200l/sec at 7×10^-7mm Hg, the end vacuum is 8×10^-7mm Hg to 2×10^-8mmHg, and these performances are maintained for about 5 hours. The peak heights of the oil fragments other than methane in the getter pump are lower than those in the oil diffusion pump and the rotary pump. The pump system of this type will be used for evacuation of the Hitachi nuclear fusion testing device.
Right : Utilization of the flash-type titanium getter pump for evacation of the large volume apparatus was studied. The testing appratus consists of the getter pump chamber, an auxiliary diffusion pump and a mass-spectrometer used to analyze the residual gases.
The pumping speed for air is 1000 l/sec to 1200 l/sec at 7×10^-7mm Hg, the end vacuum is 8×10^-7mm Hg to 2×10^-8mm Hg, and these performances are maintained for about 5 hours.
The peak heights of the oil fragments other than methane in the getter pump are lower than those in the oil diffusion pump and the rotary pump.
The pump system of this type will be used for evacuation of the Hitachi nuclear fusion testing device.

Date of correction: June 28, 2010 Reason for correction: - Correction: CITATION Details: Right : L. Holland, Vacuum, 10, 133(1960).
R. H. Daviset et al., Rev. Sci. Jnstr., 25, 1193(1954).
G. Kienel and A. Lorenz, Vakuum Tech., 9, 1(1960).

Abstract

Utilization of the flash-type titanium getter pump for evacation of the large volume apparatus was studied. The testing appratus consists of the getter pump chamber, an auxiliary diffusion pump and a mass-spectrometer used to analyze the residual gases.
The pumping speed for air is 1000 l/sec to 1200 l/sec at 7×10^-7mm Hg, the end vacuum is 8×10^-7mm Hg to 2×10^-8mm Hg, and these performances are maintained for about 5 hours.
The peak heights of the oil fragments other than methane in the getter pump are lower than those in the oil diffusion pump and the rotary pump.
The pump system of this type will be used for evacuation of the Hitachi nuclear fusion testing device.

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