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A High-Efficiency Electron Momentum Spectrometer for Direct Imaging of Orbital Electron Density |
| REN Xue-Guang;NING Chuan-Gang;DENG Jing-Kang;ZHANG Shu-Feng;SU Guo-Lin;LI Bin;CHEN Xue-Jun |
| Department of Physics, Tsinghua University, Beijing 100084
Key Laboratory of Atomic and Molecular Nanosciences of MOE, Tsinghua University, Beijing 100084 |
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| Cite this article: |
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REN Xue-Guang, NING Chuan-Gang, DENG Jing-Kang et al 2005 Chin. Phys. Lett. 22 1382-1385 |
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Abstract Direct three-dimensional images for orbital electron density are obtained by using our newly developed electron momentum spectrometer with simultaneous detection in energy and momentum, and the instruments resolutions of Δθ = ±0.7°, ΔФ= ±1.9°, ΔE = 1.2eV, and ΔT = 2.0ns. The detection efficiency is about 100 times higher than conventional spectrometers. The design and performance of the apparatus are reported together with the experimental results on argon to show the extensive improvements in experimental resolutions, detection efficiency and versatility.
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| Keywords:
31.25.Eb
34.80.Dp
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Published: 01 June 2005
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