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Abstract <p>A new configuration is proposed for a magnetic Omega-filter with achromatic beam transport and the possibility of ion mass separation at an aperture slit in the middle of the filter. Dipole sector magnets with 160-deg deflection angles, together with electrostatic multipoles at the entrance and exit of the filter, are used in the Omega-filter to form the ion beam and correct angular aberrations. With ions pre-cooled in a radiofrequency quadrupole, a mass resolving power exceeding 2000 can be achieved at full transmission of the phase volume of the ion beam.</p>

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Achromatic Magnetic Omega-Filter with an Internal Mass Selection

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • M. I. Yavor

摘要

Abstract

A new configuration is proposed for a magnetic Omega-filter with achromatic beam transport and the possibility of ion mass separation at an aperture slit in the middle of the filter. Dipole sector magnets with 160-deg deflection angles, together with electrostatic multipoles at the entrance and exit of the filter, are used in the Omega-filter to form the ion beam and correct angular aberrations. With ions pre-cooled in a radiofrequency quadrupole, a mass resolving power exceeding 2000 can be achieved at full transmission of the phase volume of the ion beam.