| 摘要 |
1284862 Te base alloy PERKINELMER CORP 13 Jan 1970 [16 Jan 1969] 1621/70 Heading C7A [Also in Division H1] A hollow cathode for a spectral lamp comprises a cup-shaped holder 22, e.g. of copper, the interior surface of which supports an alloy body 28 consisting substantially of 48% tin and 52% tellurium by weight. The insert or slug 28 may weigh 5 grams and be formed by heating 48. 2% tin and 51. 8% tellurium by weight in argon in an induction heater. The insert has a central bore 29. Dimensions of an example are given. The cathode may be incorporated into the lamp described in Specification 1183114 in which preferably there is a filling of neon. |
