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A novel sector mass spectrograph design for high-order coded aperture Mass Spectrometry with stigmatic aberration correction

Publication ,  Journal Article
DiDona, S; Russell, Z; Amsden, J; Parker, C; Glass, J; Gehm, M
Published in: International Journal of Mass Spectrometry
September 1, 2020

Previous works experimentally demonstrated that the application of spatially-coded apertures to simple sector mass spectrographs can result in increased signal intensity while maintaining spectral resolution comparable to that of a conventional slit aperture.[Chen, E.X., et al.: J Am Soc Mass Spectr. 26, 1633 (2015)][Russell, Z.E., et al.: J Am Soc Mass Spectr. 26, 248 (2015)] This spatial coding technique was later applied to a double-focusing Mattauch-Herzog mass spectrograph, and shown to be generally compatible with the architecture.[Russell, Z.E., et al.: J Am Soc Mass Spectr. 27, 1 (2016)] However, the achieved signal gain was limited by the spatial size of the electric sector gap. In this work, we introduce a modified version of the Mattauch-Herzog mass spectrograph with a wide-gap electric sector that is enabled by a novel, segmented-electrode approach, and show via simulation that this modified architecture alone (without aperture coding) achieves a 1.8x improvement in mass resolving power compared to a conventional Mattauch-Herzog spectrograph of equivalent size. Further, simulation of an aperture-coded version of the instrument supports a predicted signal strength increase of 50x with minimal loss of aperture clarity on the sensor due to the increased open area of the high-order coded aperture which can be passed.

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Published In

International Journal of Mass Spectrometry

DOI

ISSN

1387-3806

Publication Date

September 1, 2020

Volume

455

Related Subject Headings

  • Analytical Chemistry
  • 5102 Atomic, molecular and optical physics
  • 3406 Physical chemistry
  • 3401 Analytical chemistry
  • 0306 Physical Chemistry (incl. Structural)
  • 0305 Organic Chemistry
  • 0301 Analytical Chemistry
 

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DiDona, S., Russell, Z., Amsden, J., Parker, C., Glass, J., & Gehm, M. (2020). A novel sector mass spectrograph design for high-order coded aperture Mass Spectrometry with stigmatic aberration correction. International Journal of Mass Spectrometry, 455. https://doi.org/10.1016/j.ijms.2020.116374
DiDona, S., Z. Russell, J. Amsden, C. Parker, J. Glass, and M. Gehm. “A novel sector mass spectrograph design for high-order coded aperture Mass Spectrometry with stigmatic aberration correction.” International Journal of Mass Spectrometry 455 (September 1, 2020). https://doi.org/10.1016/j.ijms.2020.116374.
DiDona S, Russell Z, Amsden J, Parker C, Glass J, Gehm M. A novel sector mass spectrograph design for high-order coded aperture Mass Spectrometry with stigmatic aberration correction. International Journal of Mass Spectrometry. 2020 Sep 1;455.
DiDona, S., et al. “A novel sector mass spectrograph design for high-order coded aperture Mass Spectrometry with stigmatic aberration correction.” International Journal of Mass Spectrometry, vol. 455, Sept. 2020. Scopus, doi:10.1016/j.ijms.2020.116374.
DiDona S, Russell Z, Amsden J, Parker C, Glass J, Gehm M. A novel sector mass spectrograph design for high-order coded aperture Mass Spectrometry with stigmatic aberration correction. International Journal of Mass Spectrometry. 2020 Sep 1;455.
Journal cover image

Published In

International Journal of Mass Spectrometry

DOI

ISSN

1387-3806

Publication Date

September 1, 2020

Volume

455

Related Subject Headings

  • Analytical Chemistry
  • 5102 Atomic, molecular and optical physics
  • 3406 Physical chemistry
  • 3401 Analytical chemistry
  • 0306 Physical Chemistry (incl. Structural)
  • 0305 Organic Chemistry
  • 0301 Analytical Chemistry