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

^*Corresponding author for this work

Waseda University

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

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.

Original language	English
Article number	051916
Journal	Applied Physics Letters
Volume	91
Issue number	5
DOIs	https://doi.org/10.1063/1.2767234
Publication status	Published - 2007

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2767234

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abstract = "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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AU - Oshima, C.

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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

Abstract

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