skip to main content

Title: Metal vapor target for precise studies of ion-atom collisions

Although different ion-atom collisions have been studied in various contexts, precise values of cross-sections for many atomic processes were seldom obtained. One of the main uncertainties originates from the value of target densities. In this paper, we describe a unique method to measure a target density precisely with a combination of physical vapor deposition and inductively coupled plasma optical emission spectrometry. This method is preliminarily applied to a charge transfer cross-section measurement in collisions between highly charged ions and magnesium vapor. The final relative uncertainty of the target density is less than 2.5%. This enables the precise studies of atomic processes in ion-atom collisions, even though in the trial test the deduction of precise capture cross-sections was limited by other systematic errors.
Authors:
; ; ; ;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [1] ;  [5]
  1. GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt (Germany)
  2. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000 Gansu (China)
  3. Helmholtz-Institut Jena Fröbelstieg 3, 07743 Jena (Germany)
  4. ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt (Germany)
  5. (Germany)
Publication Date:
OSTI Identifier:
22308861
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CROSS SECTIONS; DENSITY; ELECTRON BEAM TARGETS; EMISSION SPECTROSCOPY; ICP MASS SPECTROSCOPY; ION-ATOM COLLISIONS; MAGNESIUM; MULTICHARGED IONS; PHYSICAL VAPOR DEPOSITION; PLASMA