Heavy element analysis by low energy accelerator mass spectrometry

1989 ◽  
Vol 40-41 ◽  
pp. 745-749 ◽  
Author(s):  
L.R. Kilius ◽  
M.A. Garwan ◽  
A.E. Litherland ◽  
M-J. Nadeau ◽  
J.C. Rucklidge ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Accelerator Mass Spectrometry ◽  
Heavy Element ◽  
Low Energy ◽  
Element Analysis

Accelerator mass spectrometry of heavy elements: 36 Cl to 205 Pb

1987 ◽  
Vol 323 (1569) ◽  
pp. 87-99 ◽  
Keyword(s):  
Mass Spectrometry ◽  
Accelerator Mass Spectrometry ◽  
Heavy Ion ◽  
Ion Accelerator ◽  
Ion Energies ◽  
Neutrino Experiments ◽  
Isobar Separation ◽  
Unilac Accelerator ◽  
Accelerator System

Measurements are discussed in which the technique of accelerator mass spectrometry was applied to problems involving heavy radioisotopes. These measurements, which depend on the ion energies that can be reached with the new heavy-ion accelerator facilities, were performed at the Argonne tandem linac accelerator system (atlas) and at the unilac accelerator at GSI. The topics include a discussion of measurements of long nuclear lifetimes, of radioisotope detection of interest to solar neutrino experiments, and of a determination of the 41 Ca concentration in natural samples of terrestrial origin by m aking use of isotopic pre-enrichm ent in an isotope separator. A long-known m ethod of isobar separation, employing a gas-filled m agnetic field region, has been revived for some of these m easurem ents and its characteristics and advantages are briefly reviewed.

scholarly journals Initial Results with Low Energy Single Stage AMS

Radiocarbon ◽  
2004 ◽  
Vol 46 (1) ◽  
pp. 1-4 ◽  
Author(s):  
J B Schroeder ◽  
T M Hauser ◽  
G M Klody ◽  
G A Norton
Keyword(s):  
Mass Spectrometry ◽  
Accelerator Mass Spectrometry ◽  
Low Energy ◽  
Single Stage ◽  
Particle Detector ◽  
Spherical Analyzer ◽  
Gas Stripper ◽  
Initial Results ◽  
Better Than

The National Electrostatics Corporation has built and tested a prototype low energy, open-air, single stage carbon accelerator mass spectrometry (AMS) system (patent pending). The configuration tested has a standard 40-sample, multi-cathode SNICS source on a 300-kV deck. The beam is mass analyzed before acceleration to a gas stripper located at ground. The 14C+ ions are separated from 13C+ and 12C+ arising from the molecular breakup by a 90° analyzing magnet immediately after the gas stripper which acts as a molecular dissociator. The 14C+ beam passes through an electrostatic spherical analyzer before entering the particle detector. The observed 14C/12C precision is better than 5% with a sensitivity of better than 0.05 dpm/gmC. A first single stage AMS system has been ordered. The configuration of this system will be discussed.

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