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- W2020746639 abstract "A commonly accepted method for determining the activity of a barium getter film within vacuum devices requires the measurement of pressure over the film. The getter pumping speed may be calculated from this measurement when the gas inlet rate and manifold pressure are known. In this work an attempt is made to evaluate the utility of determining getter activity as a function of emission decay of an oxide cathode. Mass spectrometer and emission decay data obtained from experiments carried out using either new or operated color picture tubes indicate that decay to an arbitrary level of 80%, induced by slow oxygen-poisioning, occurs rapidly within a narrow pressure range. This indicates that determination of oxygen getter capacity based on oxide-cathode emission decay may serve as an alternate method for comparing relative getter film activities." @default.
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- W2020746639 date "1969-01-01" @default.
- W2020746639 modified "2023-09-27" @default.
- W2020746639 title "Method for Determining Getter Activity in Vacuum Devices" @default.
- W2020746639 doi "https://doi.org/10.1116/1.1492622" @default.
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