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Title: Maximal charge injection of consecutive electron pulses with uniform temporal pulse separation

A charge sheet model is proposed for the study of the space-charge limited density of consecutive electron pulses injected to in a diode with uniform temporal pulse separation. Based on the model, an analytical formula is derived for expressing the dependency of the charge density limit on the gap spacing, gap voltage, and pulse separation. The theoretical results are verified by numerical solutions up to electron energy of a few MeV, including relativistic effects. The model can be applied to the design of multiple-pulse electron beams for time resolved electron microscopy and free electron lasers.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [4]
  1. Department of Physics, National Central University, Jhongli 32001, Taiwan (China)
  2. (Singapore)
  3. Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109-2104 (United States)
  4. Engineering Product Development, Singapore University of Technology and Design, Singapore 487372 (Singapore)
Publication Date:
OSTI Identifier:
22490107
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 8; Other Information: (c) 2015 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; CHARGE DENSITY; ELECTRIC POTENTIAL; ELECTRON BEAMS; ELECTRON MICROSCOPY; ELECTRONS; FREE ELECTRON LASERS; MEV RANGE; NUMERICAL SOLUTION; PULSES; RELATIVISTIC RANGE; SPACE CHARGE; TIME RESOLUTION