(e, 2e) electron momentum spectrometer with high sensitivity and high resolution

Journal Article · Wed Jun 15 00:00:00 EDT 2005 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1897668· OSTI ID:20722886

Ren, X G; Ning, C G; Deng, J K; Zhang, S F; Su, G L; Huang, F; Li, G Q ^[1]

---

1. Department of Physics, Tsinghua University, Beijing 100084 (China)

A high sensitivity and high resolution (e, 2e) electron momentum spectrometer with simultaneous detection in energy and momentum are constructed. The design and performance of the spectrometer are reported. The orbital electron density distributions are obtained accurately and rapidly by using this spectrometer equipped with a double toroidal analyzer. The experimental results on argon and helium exhibit the significant improvements in coincidence count rates, resolution, sensitivity and obtainment of a wide range of adjustable experimental impact energies, which are crucial for further electron momentum spectroscopy studying electronic structure and electron correlation in complex systems.

• OSTI ID: 20722886
• Journal Information: Review of Scientific Instruments, Vol. 76, Issue 6; Other Information: DOI: 10.1063/1.1897668; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

60 APPLIED LIFE SCIENCES
ARGON
BINDING ENERGY
CALIBRATION
COUNTING RATES
DESIGN
DETECTION
ELECTRON CORRELATION
ELECTRON DENSITY
ELECTRON SPECTROMETERS
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
ELECTRONS
HELIUM
IONIZATION
PERFORMANCE
RESOLUTION
SENSITIVITY