Development of a retarding-field type magnetic bottle spectrometer for studying the internal-conversion process of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e329" altimg="si84.svg"><mml:msup><mml:mrow/><mml:mrow><mml:mi mathvariant="normal">235m</mml:mi></mml:mrow></mml:msup></mml:math>U

Shigekawa, Yudai; Kasamatsu, Y.; Yamakita, Yoshihiro; Yasuda, Yuki; Watanabe, Erika; Kondo, Nobuhiko; Haba, Hiromitsu; Shinohara, Atsushi

doi:10.1016/j.nima.2020.164207

Nuclear Instruments and Methods in Physics Research Section A:

2020

DOI: 10.1016/j.nima.2020.164207

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Development of a retarding-field type magnetic bottle spectrometer for studying the internal-conversion process of 235mU

Yudai Shigekawa

Y. Kasamatsu

Yoshihiro Yamakita

et al.

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Design and performance of a magnetic bottle electron spectrometer for high-energy photoelectron spectroscopy

Borne,

O’Neal,

Wang

et al. 2024

Review of Scientific Instruments

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We describe the design and performance of a magnetic bottle electron spectrometer (MBES) for high-energy electron spectroscopy. Our design features a 2 m long electron drift tube and electrostatic retardation lens, achieving sub-electronvolt (eV) electron kinetic energy resolution for high energy (several hundred eV) electrons with a close to 4π collection solid angle. A segmented anode electron detector enables the simultaneous collection of photoelectron spectra in high resolution and high collection efficiency modes. This versatile instrument is installed at the time-resolved molecular and optical sciences instrument at the Linac Coherent Light Source x-ray free-electron laser (XFEL). In this paper, we demonstrate its high resolution, collection efficiency, and spatial selectivity in measurements where it is coupled to an XFEL source. These combined characteristics are designed to enable high-resolution time-resolved measurements using x-ray photoelectron, absorption, and Auger–Meitner spectroscopy. We also describe the pervasive artifact in MBES time-of-flight spectra that arises from a periodic modulation in electron collection efficiency and present a robust analysis procedure for its removal.

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Design and performance of a magnetic bottle electron spectrometer for high-energy photoelectron spectroscopy

Borne,

O’Neal,

Wang

et al. 2024

Review of Scientific Instruments

View full text Add to dashboard Cite

show abstract

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Development of a retarding-field type magnetic bottle spectrometer for studying the internal-conversion process of 235mU

Cited by 1 publication

References 39 publications

Design and performance of a magnetic bottle electron spectrometer for high-energy photoelectron spectroscopy

Design and performance of a magnetic bottle electron spectrometer for high-energy photoelectron spectroscopy

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