Publications

Exotic negative molecules in AMS

Author(s)
Robin Golser, Hubert Gnaser, Walter Kutschera, Alfred Priller, Peter Steier, Anton Wallner
Abstract

"The techniques and equipment developed for AMS studies are well suited for identifying exotic negative ions". With this sentence begins a pioneering paper by Roy Middleton and Jeff Klein (M&K) on small doubly-charged negative carbon clusters [Nucl. Instr. and Meth. B 123 (1997) 532]. M&K were the first to utilize Accelerator Mass Spectrometry to prove the existence of these clusters and a number of other exotic molecules. We review M&K's efforts and show how their work is being continued at other laboratories. The latest developments are: (1) the discovery of long-lived molecular hydrogen anions H2-, D2- and (2) the unambiguous identification of the smallest doubly-charged negative molecule (LiF3)2-. In particular we show new experimental data for D3-, and for (LiF3)2-, and we try to answer the question why M&K's search for this di-anion was unsuccessful. © 2007 Elsevier B.V. All rights reserved.

Organisation(s)
Isotope Physics
External organisation(s)
Technische Universität Kaiserslautern
Journal
Nuclear Instruments & Methods in Physics Research. Section B. Beam Interactions with Materials and Atoms
Volume
259
Pages
71-75
No. of pages
5
ISSN
0168-583X
DOI
https://doi.org/10.1016/j.nimb.2007.01.174
Publication date
2007
Peer reviewed
Yes
Austrian Fields of Science 2012
103005 Atomic physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/exotic-negative-molecules-in-ams(fd21e299-bad5-45d3-8b52-e3b953dee595).html