Emission properties and back-bombardment for CeB{sub 6} compared to LaB{sub 6}
Journal Article
·
· Journal of Applied Physics
- Physics Department, Faculty of Science, Assiut University, Assiut, 71516 (Egypt)
- LNS, Graduate School of Science, Tohoku University, Sendai 982-0826 (Japan)
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan)
The emission properties of CeB{sub 6} compared to LaB{sub 6} thermionic cathodes have been measured using an electrostatic DC gun. Obtaining knowledge of the emission properties is the first step in understanding the back-bombardment effect that limits wide usage of thermionic radio-frequency electron guns. The effect of back-bombardment electrons on CeB{sub 6} compared to LaB{sub 6} was studied using a numerical simulation model. The results show that for 6 μs pulse duration with input radio-frequency power of 8 MW, CeB{sub 6} should experience 14% lower temperature increase and 21% lower current density rise compared to LaB{sub 6}. We conclude that CeB{sub 6} has the potential to become the future replacement for LaB{sub 6} thermionic cathodes in radio-frequency electron guns.
- OSTI ID:
- 22413108
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 6 Vol. 117; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
Similar Records
OPTICAL CONSTANTS IN LaB$sub 6$ AND CeB$sub 6$
Electronic structure and positron annihilation in LaB/sub 6/ and CeB/sub 6/
Positron annihilation study of the electronic structure of LaB{sub 6} and CeB{sub 6}
Journal Article
·
Thu Feb 28 23:00:00 EST 1963
· Soviet Phys.-Solid State (English Transl.)
·
OSTI ID:4752408
Electronic structure and positron annihilation in LaB/sub 6/ and CeB/sub 6/
Journal Article
·
Mon May 01 00:00:00 EDT 1989
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6114668
Positron annihilation study of the electronic structure of LaB{sub 6} and CeB{sub 6}
Journal Article
·
Wed Oct 01 00:00:00 EDT 1997
· Physical Review, B: Condensed Matter
·
OSTI ID:543825