Abstract
We have constructed new apparatus for high resolution field emission spectroscopy. This apparatus, which we call HRFES system, consist of a new spectrometer, a computer controlled low-noise power supply, an extremely-high-vacuum chamber, and a new pressure gauge. The high resolution of better than 0.5 meV was realized by the new spectrometer. By using the HRFES system, we measured the energy distributions of field electrons emitted from tungsten (W) 〈310〉 and niobium (Nb) 〈111〉 tips at -193°C (80 K) and room temperature in the emission current region from 10-8 to 10-6 A. The high-intensity part of observed curves at emission of ∼ 10-8 A agreed with the calculated ones based on the Fowler-Nordheim theory, while there are discrepancies in two energy regions.
| Original language | English |
|---|---|
| Pages (from-to) | 353-369 |
| Number of pages | 17 |
| Journal | Advances in Colloid and Interface Science |
| Volume | 71-72 |
| Publication status | Published - 1997 Sep 1 |
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Keywords
- Coherent electron beam
- Extremely high vacuum
- Field emission spectroscopy
- High-resolution electron microscopy
- Ionization pressure gauge
ASJC Scopus subject areas
- Colloid and Surface Chemistry
- Physical and Theoretical Chemistry
- Surfaces and Interfaces
Cite this
An apparatus for high resolution field emission spectroscopy. / Oshima, Chuhei.
In: Advances in Colloid and Interface Science, Vol. 71-72, 01.09.1997, p. 353-369.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An apparatus for high resolution field emission spectroscopy
AU - Oshima, Chuhei
PY - 1997/9/1
Y1 - 1997/9/1
N2 - We have constructed new apparatus for high resolution field emission spectroscopy. This apparatus, which we call HRFES system, consist of a new spectrometer, a computer controlled low-noise power supply, an extremely-high-vacuum chamber, and a new pressure gauge. The high resolution of better than 0.5 meV was realized by the new spectrometer. By using the HRFES system, we measured the energy distributions of field electrons emitted from tungsten (W) 〈310〉 and niobium (Nb) 〈111〉 tips at -193°C (80 K) and room temperature in the emission current region from 10-8 to 10-6 A. The high-intensity part of observed curves at emission of ∼ 10-8 A agreed with the calculated ones based on the Fowler-Nordheim theory, while there are discrepancies in two energy regions.
AB - We have constructed new apparatus for high resolution field emission spectroscopy. This apparatus, which we call HRFES system, consist of a new spectrometer, a computer controlled low-noise power supply, an extremely-high-vacuum chamber, and a new pressure gauge. The high resolution of better than 0.5 meV was realized by the new spectrometer. By using the HRFES system, we measured the energy distributions of field electrons emitted from tungsten (W) 〈310〉 and niobium (Nb) 〈111〉 tips at -193°C (80 K) and room temperature in the emission current region from 10-8 to 10-6 A. The high-intensity part of observed curves at emission of ∼ 10-8 A agreed with the calculated ones based on the Fowler-Nordheim theory, while there are discrepancies in two energy regions.
KW - Coherent electron beam
KW - Extremely high vacuum
KW - Field emission spectroscopy
KW - High-resolution electron microscopy
KW - Ionization pressure gauge
UR - http://www.scopus.com/inward/record.url?scp=0031222167&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031222167&partnerID=8YFLogxK
M3 - Article
VL - 71-72
SP - 353
EP - 369
JO - Advances in Colloid and Interface Science
JF - Advances in Colloid and Interface Science
SN - 0001-8686
ER -