A highly sensitive electron momentum spectrometer incorporating a multiparticle imaging detector

M. Yamazaki; H. Satoh; M. Ueda; D. B. Jones; Y. Asano; N. Watanabe; A. Czasch; O. Jagutzki; M. Takahashi

doi:10.1088/0957-0233/22/7/075602

A highly sensitive electron momentum spectrometer incorporating a multiparticle imaging detector

M. Yamazaki, H. Satoh, M. Ueda, D. B. Jones, Y. Asano, N. Watanabe, A. Czasch, O. Jagutzki, M. Takahashi

IMRAM - Materials-Measurement Hybrid Research Center

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

A multichannel electron momentum spectrometer is reported, which combines the features of both a spherical analyzer and a large-area multiparticle imaging detector. The major advantage of the apparatus over the existing setups is its ability to cover almost completely the available azimuthal angle range for the symmetric noncoplanar (e, 2e) reaction. It produces considerable improvement in instrumental sensitivity and approximately three times extension of the coverable momentum range compared with our existing apparatus. A proof-of-performance experiment on Ne is presented and the potential of the developed spectrometer is highlighted for future studies of electron momentum spectroscopy.

Original language	English
Article number	075602
Journal	Measurement Science and Technology
Volume	22
Issue number	7
DOIs	https://doi.org/10.1088/0957-0233/22/7/075602
Publication status	Published - 2011 Jul

Keywords

(e, 2e)
electron momentum spectroscopy
multichannel coincidence technique

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10.1088/0957-0233/22/7/075602

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AU - Yamazaki, M.

AU - Satoh, H.

AU - Ueda, M.

AU - Jones, D. B.

AU - Asano, Y.

AU - Watanabe, N.

AU - Czasch, A.

AU - Jagutzki, O.

AU - Takahashi, M.

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AB - A multichannel electron momentum spectrometer is reported, which combines the features of both a spherical analyzer and a large-area multiparticle imaging detector. The major advantage of the apparatus over the existing setups is its ability to cover almost completely the available azimuthal angle range for the symmetric noncoplanar (e, 2e) reaction. It produces considerable improvement in instrumental sensitivity and approximately three times extension of the coverable momentum range compared with our existing apparatus. A proof-of-performance experiment on Ne is presented and the potential of the developed spectrometer is highlighted for future studies of electron momentum spectroscopy.

KW - (e, 2e)

KW - electron momentum spectroscopy

KW - multichannel coincidence technique

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A highly sensitive electron momentum spectrometer incorporating a multiparticle imaging detector

Abstract

Keywords

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