Filament Sources of Positive Ions

by: JP Blewett, Ernest J Jones

Physical Review, Vol. 50, No. 5. (1936), 464.

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摘要

Efficient filament sources of ions of the alkali metals have been produced by heating synthetic alkali aluminum silicates. Studies of emission of the lithium sources as a function of composition reveal that the silicate 1 Li 2 O: 1 Al 2 O 3 : 2 SiO 2 is the most satisfactory ion emitter. Similar sources of the other alkalies prove stable and copious. Ions of Mg; Ca; Sr; Ba; Al; Ga; In; Ti; V; Mn; Y; and Ce; are emitted when the oxide of the metal in question is heated to a white heat on a tungsten filament. The O 2 - peak observed by Barton has been checked. In the case of aluminum; negative ions of mass 27—presumably Al - —were observed.

@article{citeulike:1286335, abstract = {Efficient filament sources of ions of the alkali metals have been produced by heating synthetic alkali aluminum silicates. Studies of emission of the lithium sources as a function of composition reveal that the silicate 1 Li 2 O: 1 Al 2 O 3 : 2 SiO 2 is the most satisfactory ion emitter. Similar sources of the other alkalies prove stable and copious. Ions of Mg; Ca; Sr; Ba; Al; Ga; In; Ti; V; Mn; Y; and Ce; are emitted when the oxide of the metal in question is heated to a white heat on a tungsten filament. The O 2 - peak observed by Barton has been checked. In the case of aluminum; negative ions of mass 27—presumably Al - —were observed.}, author = {Blewett, J. P. and Jones, Ernest J. }, citeulike-article-id = {1286335}, doi = {http://dx.doi.org/10.1103/PhysRev.50.464}, journal = {Physical Review}, keywords = {emission, ion, thermionic}, number = {5}, pages = {464+}, posted-at = {2007-05-09 21:13:11}, priority = {4}, publisher = {American Physical Society}, title = {Filament Sources of Positive Ions}, url = {http://dx.doi.org/10.1103/PhysRev.50.464}, volume = {50}, year = {1936} }

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TY - JOUR ID - citeulike:1286335 L3 - citeulike-article-id:1286335 N2 - Efficient filament sources of ions of the alkali metals have been produced by heating synthetic alkali aluminum silicates. Studies of emission of the lithium sources as a function of composition reveal that the silicate 1 Li 2 O: 1 Al 2 O 3 : 2 SiO 2 is the most satisfactory ion emitter. Similar sources of the other alkalies prove stable and copious. Ions of Mg; Ca; Sr; Ba; Al; Ga; In; Ti; V; Mn; Y; and Ce; are emitted when the oxide of the metal in question is heated to a white heat on a tungsten filament. The O 2 - peak observed by Barton has been checked. In the case of aluminum; negative ions of mass 27—presumably Al - —were observed. IS - 5 JF - Physical Review TI - Filament Sources of Positive Ions PB - American Physical Society VL - 50 SP - 464 KW - emission KW - ion KW - thermionic AU - Blewett, JP AU - Jones, Ernest PY - 1936//01/ UR - http://dx.doi.org/10.1103/PhysRev.50.464 ER -

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