Browsing Conferinţa ICNBME - International Conference on Nanotechnologies and Biomedical Engineering by Subject "electron beams"

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Activation Process of GaAs NEA Photocathode and its Spectral Sensitivity

MITSUNO, K.; MASUZAWA, T.; HATANAKA, Y.; NEO, Y.; MIMURA, H. (Tehnica UTM, 2015)

Negative electron affinity (NEA) Gallium Arsenide (GaAs) photocathodes with high photo-electric conversion quantum efficiency (QE) and high response speed are expected as an electron source for THz frequency vacuum devices. ...
Multi-gated Field Emitters for a Micro-column

MIMURA, Hidenori; KOIKE, Akifumi; AOKI, Toru; NEO, Yoichiro; YOSHIDA, Tomoya; NAGAO, Masayoshi (Technical University of Moldova, 2011)

We have developed a multi-gated field emitter (FE) such as a quadruple-gated FE with a three-stacked electrode lens and a quintuple-gated FE with a four-stacked electrode lens. Both the FEs can focus the electron beam. ...

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