. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. CMSIUM-OXYGEN-SILVER PHOTOELECTRIC CELL 337 1. Formation of a Silver Oxide Film on Surface of Cathode The cells are sealed to a high vacuum exhaust system and baked out at 400° C. The next step is the oxidation of the surface. It was found that oxidation by a glow discharge in oxygen was the most suitable method. This oxidation could not be done quantitatively and uniformly over the front surface of the cathode because of surface irregularities in the silver and becaus
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. CMSIUM-OXYGEN-SILVER PHOTOELECTRIC CELL 337 1. Formation of a Silver Oxide Film on Surface of Cathode The cells are sealed to a high vacuum exhaust system and baked out at 400° C. The next step is the oxidation of the surface. It was found that oxidation by a glow discharge in oxygen was the most suitable method. This oxidation could not be done quantitatively and uniformly over the front surface of the cathode because of surface irregularities in the silver and because of variations in the physical conditions of the surface. Means were therefore sought to obtain a. Fig. 1—Western Electric 3A photoelectric cell. uniform surface and one that would be the same in all cells, independent of irregularities that could not be avoided, which were due to past history. To accomplish this, electrolytic oxygen is admitted to the exhaust system and the cathode is oxidized by a glow discharge until com- pletely black. Then the circuit is held closed while the cathode is heated by ion bombardment until the silver oxide is decomposed, leaving a bright matte surface. After cooling, this process is Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Telephone and Telegraph Company. [Short Hills, N. J. , etc. , American Telephone and Telegraph Co. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
