Record of the lowest frequency shot noise measurement below 10 Hz

B. Cho; T. Itagaki; C. Oshima

doi:10.1063/1.2767234

Record of the lowest frequency shot noise measurement below 10 Hz

B. Cho^*, T. Itagaki, C. Oshima

^*この研究の対応する著者

早稲田大学

研究成果: Article › 査読

4 被引用数 (Scopus)

抄録

The noise of field emission (FE) currents ranging from 10 pA to 100 μA was measured under ∼7× 10-10 Pa. Stepwise features were routinely observed in damping curves of the FE current, indicating remarkable sensitivity of the FE current measuring system. The lowest frequency measurement of shot noise was recorded below 10 Hz. Space-charge suppression of noise was not observed for FE currents up to 100 μA. Adsorption of residual gas increased the intensity of noise and made the noise of field emission current be dominated by the flicker noise.

本文言語	English
論文番号	051916
ジャーナル	Applied Physics Letters
巻	91
号	5
DOI	https://doi.org/10.1063/1.2767234
出版ステータス	Published - 2007

ASJC Scopus subject areas

物理学および天文学（その他）

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10.1063/1.2767234

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AB - The noise of field emission (FE) currents ranging from 10 pA to 100 μA was measured under ∼7× 10-10 Pa. Stepwise features were routinely observed in damping curves of the FE current, indicating remarkable sensitivity of the FE current measuring system. The lowest frequency measurement of shot noise was recorded below 10 Hz. Space-charge suppression of noise was not observed for FE currents up to 100 μA. Adsorption of residual gas increased the intensity of noise and made the noise of field emission current be dominated by the flicker noise.

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Record of the lowest frequency shot noise measurement below 10 Hz

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