A brightness comparison of thermionic electron sources in a TEM
Conference
·
OSTI ID:10158246
In the quest for thermionic electron sources brighter than the standard tungsten filament, manufacturers have given us first LaB{sub 6} and then CeB{sub 6} single crystals. This paper compares these 3 electron sources under typical operating conditions in a Philips EM420T transmission microscope.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10158246
- Report Number(s):
- ANL/MSD/CP-82370; CONF-940753-14; ON: DE94013300
- Resource Relation:
- Conference: Microscopy Society of America and Microbeam Analysis Society joint meeting,New Orleans, LA (United States),31 Jul - 5 Aug 1994; Other Information: PBD: Mar 1994
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
ELECTRON SOURCES
BRIGHTNESS
TRANSMISSION ELECTRON MICROSCOPY
CATHODES
ELECTRON MICROSCOPES
THERMIONIC EMITTERS
TUNGSTEN
ELECTRON EMISSION
THERMIONIC EMISSION
LANTHANUM BORIDES
CERIUM BORIDES
THERMIONICS
400101
360204
360104
ACTIVATION, NUCLEAR REACTION, RADIOMETRIC, AND RADIOCHEMICAL PROCEDURES
PHYSICAL PROPERTIES
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
ELECTRON SOURCES
BRIGHTNESS
TRANSMISSION ELECTRON MICROSCOPY
CATHODES
ELECTRON MICROSCOPES
THERMIONIC EMITTERS
TUNGSTEN
ELECTRON EMISSION
THERMIONIC EMISSION
LANTHANUM BORIDES
CERIUM BORIDES
THERMIONICS
400101
360204
360104
ACTIVATION, NUCLEAR REACTION, RADIOMETRIC, AND RADIOCHEMICAL PROCEDURES
PHYSICAL PROPERTIES