PMID- 18601423
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20090714
LR  - 20080708
IS  - 0034-6748 (Print)
IS  - 0034-6748 (Linking)
VI  - 79
IP  - 6
DP  - 2008 Jun
TI  - A series of tufted carbon fiber cathodes designed for different high power 
      microwave sources.
PG  - 064701
LID - 10.1063/1.2936870 [doi]
AB  - We report the fabrication technique of tufted carbon fiber cathodes for different 
      microwave sources. Three carbon fiber cathodes were constructed, including a 
      planar cathode, an annular cathode, and a cylindrical cathode for radial 
      emission. Experimental investigations on these cathodes were performed in a 
      reflex triode virtual cathode oscillator (vircator), a backward wave oscillator 
      (BWO), and a magnetically insulated transmission line oscillator (MILO), 
      respectively. The pulse duration of microwave emission from the reflex triode 
      vircator was lengthened by using the planar carbon fiber cathode. In the BWO with 
      the annular carbon fiber cathode, the uniform electron beam with a kA/cm(2) 
      current density was observed. In addition, carbon fiber has great promise as 
      field emitter for MILOs. These results show that the carbon fiber cathodes can be 
      utilized for electron emission in high power diodes with different structures.
FAU - Liu, Lie
AU  - Liu L
AD  - College of Photoelectric Science and Engineering, National University of Defense 
      Technology, Changsha, PR China.
FAU - Li, Limin
AU  - Li L
FAU - Zhang, Jun
AU  - Zhang J
FAU - Zhang, Xiaoping
AU  - Zhang X
FAU - Wen, Jianchun
AU  - Wen J
FAU - Liu, Yonggui
AU  - Liu Y
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Rev Sci Instrum
JT  - The Review of scientific instruments
JID - 0405571
EDAT- 2008/07/08 09:00
MHDA- 2008/07/08 09:01
CRDT- 2008/07/08 09:00
PHST- 2008/07/08 09:00 [pubmed]
PHST- 2008/07/08 09:01 [medline]
PHST- 2008/07/08 09:00 [entrez]
AID - 10.1063/1.2936870 [doi]
PST - ppublish
SO  - Rev Sci Instrum. 2008 Jun;79(6):064701. doi: 10.1063/1.2936870.