Abstract
dc:description.abstract"A projection diode similar to the one developed by Gardner (]6) was constructed to measure the point-by-point thermionic emission parameters of a tungsten single crystal with {110} zone 8° to 10° off filament axis. Pecrystallization of the filament was achieved by the Robinson (27) method of heating treatment. The average <}>* and A* were found to be 4.485 ± 0.055 volts and 49 ± 16 amp per (cm deg)2 respectively. In the various crystallographic directions close to the {110} zone, <f> was 4.80V [110], 4.68V [112], 4.35V [116] and 4.62V [100]. It was evident that the average work function has strong dependence on the low work function patches as predicted by theory. There is strong evidence that a polycrystalline and a single crystal filament have equivalent high and low work function patch distributions."
Degree
thesis:*- Name thesis:degree_name
- Maîtrise ès sciences (physique)
- Level thesis:degree_level
- 2e cycle
- Discipline thesis:degree_discipline
- Faculté des sciences (1967-1977)
- Grantor dc:publisher
- Université de Moncton
- Year dc:date.issued
- 1969
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Richard, Thomas G.
- Advisor dc:contributor.advisor
-
- Girouard, Fernand E.
Subjects
dc:subject × 3Rights
dc:rights- Statement dc:rights
-
- Author
- Language dc:language.iso
- iso639-2b, eng
Identifiers
dc:identifier.*- Identifier
- oclc: 726442515
- Dc Identifier Other
- umir:942
- OAI identifier oai:identifier
- oai:umoncton.scholaris.ca:20.500.14658/7020