New source of MeV negative ion and neutral atom beams

S. Ter-Avetisyan*, J. Braenzel, M. Schnürer, R. Prasad, M. Borghesi, S. Jequier, V. Tikhonchuk

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
338 Downloads (Pure)


The scenario of "electron-capture and -loss" was recently proposed for the formation of negative ion and neutral atom beams with MeV kinetic energies. However, it does not explain why the formation of negative ions in a liquid spray is much more efficient than with an isolated atom. The role of atomic excited states in the charge-exchange processes is considered, and it is shown that it cannot account for the observed phenomena. The processes are more complex than the single electron-capture and -loss approach. It is suggested that the shell effects in the electronic structure of the projectile ion and/or target atoms may influence the capture/loss probabilities.

Original languageEnglish
Article number02B134
Number of pages3
JournalReview of Scientific Instruments
Issue number2
Early online date16 Nov 2015
Publication statusPublished - 2016

Bibliographical note

Contributed paper, published as part of the Proceedings of the 16th International Conference on Ion Sources, New York, New York, USA, August 2015.

ASJC Scopus subject areas

  • Instrumentation


Dive into the research topics of 'New source of MeV negative ion and neutral atom beams'. Together they form a unique fingerprint.

Cite this