skip to main content

Title: Efficiency enhancement of anomalous-Doppler electron cyclotron masers with tapered magnetic field

The efficiency of slow-wave electron cyclotron masers (ECM) is usually low, thus limiting the practical applications. Here, a method of tapered magnetic field is introduced for the efficiency enhancement of the slow-wave ECM. The numerical calculations show that the tapered magnetic-field method can enhance the efficiency of slow-wave ECM significantly. The effect of beam electron velocity spread on the efficiency has also been studied. Although the velocity spread reduces the efficiency, a great enhancement of efficiency can still be obtained by the tapered magnetic field method.
Authors:
;  [1] ;  [2] ;  [3] ; ;  [2] ;  [4]
  1. Beijing Key Laboratory of Harmful Chemicals Analysis and School of Science, Beijing University of Chemical Technology, Beijing 100029 (China)
  2. School of Electronics Engineering and Computer Science, Peking University, Beijing 100871 (China)
  3. (China)
  4. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081 (China)
Publication Date:
OSTI Identifier:
22252026
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BEAMS; EFFICIENCY; ELECTRONS; MAGNETIC FIELDS; MICROWAVE AMPLIFIERS; VELOCITY