The Time Lag and other Undesirable Phenomena observed in Vacuum Photo-tubes at Weak Illumination I

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概要

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• It has been known that in the case of accurate photoelectric photometry of weak light intensity, even the vacuum photo-tube shows the abnormal and undesirable effects such as non-linearity of photoelectric current to the flux of illumination, the variation of photoelectric current with the lapse of time, etc. But, it has not yet been clarified on what factors they depend. The present writer has experimentally studied these abnormal effects by varying the applied voltage, the wave length, and the flux of illuminating light. The results show that photoelectric materials, such as caesium, adhering to the undesired portion of the tube wall in poor contact with the photocathode are presumed to be the main cause of these abnormalities.

• 社団法人日本物理学会の論文
• 1956-02-05

著者

• Sugawara Masao

  Hitachi Central Research Lab

• Sugawara Masao

  Hitachi Central Research Lab.

関連論文

• The Time Lag and other Undesirable Phenomena observed in Vacuum Photo-tubes at Weak Illumination I
• On the Phototubes Sensitive to the Wide Spectral Region
• The Time Lag and other undesirable Phenomena observed in Vacuum Photo-tubes at Weak Illumination II

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