Space-Charge Limitation of a Femtosecond Photoinjector | Zendy

Hiroko Yamamoto | Zendy; Hiroaki Hamabe | Zendy; Shintaro Sone | Zendy; Soichiro Yamaguchi | Zendy; M. Asakawa | Zendy

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Space-Charge Limitation of a Femtosecond Photoinjector

Author(s) -

Hiroko Yamamoto,

Hiroaki Hamabe,

Shintaro Sone,

Soichiro Yamaguchi,

M. Asakawa

Publication year - 2011

Publication title -

international journal of optics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.263

H-Index - 17

eISSN - 1687-9392

pISSN - 1687-9384

DOI - 10.1155/2011/714265

Subject(s) - space charge , cathode , femtosecond , photoelectric effect , diode , laser , electron , electron gun , physics , current density , voltage , optics , field (mathematics) , atomic physics , materials science , optoelectronics , cathode ray , electrical engineering , nuclear physics , mathematics , quantum mechanics , pure mathematics , engineering

Experimental investigation of a compact 40-kV diode-type photoelectric DC gun driven by 100 fs laser pulses revealed that the space-charge-limited current density could exceed 30 kA/cm2 and that the density increased linearly with the accelerating voltage. We explained these important properties by the balance between the cathode surface field and the field produced by sheet-like electron bunches near the cathode surface. Our simple physical model agreed well with the experimental results

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