Measurement of pressures in 10-10 Pa range from the damping speed of field emission current

B. Cho; T. Itagaki; T. Ishikawa; C. Oshima

doi:10.1063/1.2753721

Measurement of pressures in 10-10 Pa range from the damping speed of field emission current

B. Cho^*, T. Itagaki, T. Ishikawa, 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

6 被引用数 (Scopus)

抄録

The damping behavior of field emission (FE) currents was monitored with W(111) tips under pressures down to 5× 10-10 Pa. Semilogarithmic damping curves of FE currents were linear for 0.3 L hydrogen exposure in the thoroughly degassed extreme high vacuum (XHV) FE system. The slope of semilogarithmic damping curves was linearly proportional to the operation pressure, suggesting a method of measuring pressure in an XHV range. Electron stimulated desorption was not observed.

本文言語	English
論文番号	012105
ジャーナル	Applied Physics Letters
巻	91
号	1
DOI	https://doi.org/10.1063/1.2753721
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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10.1063/1.2753721

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AU - Cho, B.

AU - Itagaki, T.

AU - Ishikawa, T.

AU - Oshima, C.

PY - 2007

Y1 - 2007

N2 - The damping behavior of field emission (FE) currents was monitored with W(111) tips under pressures down to 5× 10-10 Pa. Semilogarithmic damping curves of FE currents were linear for 0.3 L hydrogen exposure in the thoroughly degassed extreme high vacuum (XHV) FE system. The slope of semilogarithmic damping curves was linearly proportional to the operation pressure, suggesting a method of measuring pressure in an XHV range. Electron stimulated desorption was not observed.

AB - The damping behavior of field emission (FE) currents was monitored with W(111) tips under pressures down to 5× 10-10 Pa. Semilogarithmic damping curves of FE currents were linear for 0.3 L hydrogen exposure in the thoroughly degassed extreme high vacuum (XHV) FE system. The slope of semilogarithmic damping curves was linearly proportional to the operation pressure, suggesting a method of measuring pressure in an XHV range. Electron stimulated desorption was not observed.

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Measurement of pressures in 10-10 Pa range from the damping speed of field emission current

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