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Updated: May 29, 2026

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet (VUV) Synchrotron Radiation
Published on: October 30, 2012
High resolution extreme ultraviolet spectrometer for an electron beam ion trap
Hayato Ohashi1, Junji Yatsurugi, Hiroyuki A Sakaue
1Institute for Laser Science, The University of Electro-Communications, Chofu, Tokyo, Japan. h_ohashi@ils.uec.ac.jp
A new extreme ultraviolet spectrometer was developed for studying highly charged ions using an electron beam ion trap. This high-performance instrument achieves a resolving power exceeding 1000 for detailed spectroscopic analysis.
Area of Science:
- Atomic Physics
- Spectroscopy
- Plasma Physics
Background:
- Studying highly charged ions is crucial for understanding atomic processes in various environments.
- Electron beam ion traps (EBIS) are powerful tools for generating and confining these ions.
- Advanced spectroscopic instruments are needed to analyze the emitted light from these ions.
Purpose of the Study:
- To develop and demonstrate a novel extreme ultraviolet (EUV) spectrometer for high-resolution studies of highly charged ions.
- To achieve broad wavelength coverage for comprehensive spectral analysis.
- To validate the spectrometer's performance using an electron beam ion trap.
Main Methods:
- Development of a slit-less spectrometer utilizing a spherical varied-line-spacing grating.
- Implementation of grazing incidence optics for EUV light.
- Employing two interchangeable gratings to cover the 1-25 nm wavelength range.
- Integration with the Tokyo electron beam ion trap for experimental validation.
Main Results:
- The developed spectrometer provides a flat focal plane suitable for grazing incidence light.
- The instrument successfully covers the 1-25 nm wavelength range.
- Test observations confirmed a high resolving power greater than 1000.
- Demonstrated the capability for detailed spectroscopic studies of highly charged ions.
Conclusions:
- The novel EUV spectrometer is a high-performance instrument for studying highly charged ions.
- Its design and capabilities enable advanced spectroscopic investigations.
- The spectrometer's performance validates its utility in atomic physics and plasma research.
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