Technical Physics Letters

, Volume 45, Issue 10, pp 1054–1058 | Cite as

Electron-Impact-Induced Fragmentation of a Glutamine Molecule

  • A. V. Papp
  • V. S. Vukstich
  • L. G. Romanova
  • T. A. Snegurskaya
  • I. G. Megela
  • A. V. SnegurskyEmail author


The formation of ionized products upon single and dissociative ionization of a glutamine (C5H10N2O3) molecule by electron impact at low (70 eV) and high (11.5 MeV) energies has been studied by method of mass spectrometry. The mass spectra of glutamine molecules have been obtained upon electron irradiation to various doses (0, 5, 10, and 20 kGy) and for various threshold functions of ion fragment yield. The absolute values of ion fragment appearance energies are determined. Electron beams were generated by a three-electrode gun and electron accelerator (microtron). Comparative analysis of the measured mass spectra of unirradiated and irradiated glutamine molecules showed that high-energy irradiation produced irreversible changes in the molecular structure.


glutamine mass spectrum electron beam ion fragment appearance potential appearance energy. 



The authors declare that they have no conflict of interest.


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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. V. Papp
    • 1
  • V. S. Vukstich
    • 1
  • L. G. Romanova
    • 1
  • T. A. Snegurskaya
    • 2
  • I. G. Megela
    • 1
  • A. V. Snegursky
    • 1
    Email author
  1. 1.Institute of Electron Physics, National Academy of Sciences of UkraineUzhgorodUkraine
  2. 2.Uzhgorod National UniversityUzhgorodUkraine

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