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

Journal Article · Sat Aug 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4928586· OSTI ID:22490107

Liu, Y. L. ^[1]; Zhang, P. ^[2]; Chen, S. H. ^[1]

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1. Department of Physics, National Central University, Jhongli 32001, Taiwan (China)
2. Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109-2104 (United States)

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.

• OSTI ID: 22490107
• Journal Information: Physics of Plasmas, Vol. 22, Issue 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

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