Accelerator mass spectrometry with a coupled tandem-linac system

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A coupled system provides higher energies, which allows one to extend AMS to hitherto untouched mass regions. Another important argument is that the complexity, although bothersome for the operation, increases the selectivity of detecting a particular isotope. The higher-energy argument holds for any heavy-ion accelerator which is capable of delivering higher energy than a tandem. The present use of tandem-linac combinations for AMS, rather than cyclotrons, linacs or combinations of these machines, has mainly to do with the fact that this technique was almost exclusively developed around tandem accelerators. Therefore the tandem-linac combination is a natural extension to higher energies. ... continued below

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Pages: 15

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Kutschera, W. January 1, 1984.

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Description

A coupled system provides higher energies, which allows one to extend AMS to hitherto untouched mass regions. Another important argument is that the complexity, although bothersome for the operation, increases the selectivity of detecting a particular isotope. The higher-energy argument holds for any heavy-ion accelerator which is capable of delivering higher energy than a tandem. The present use of tandem-linac combinations for AMS, rather than cyclotrons, linacs or combinations of these machines, has mainly to do with the fact that this technique was almost exclusively developed around tandem accelerators. Therefore the tandem-linac combination is a natural extension to higher energies. The use of negative ions has some particular advantages in suppressing background from unwanted elements that do not form stable negative ions (e.g., N, Mg, Ar). On the other hand, this limits the detection of isotopes to elements which do form negative ions. For particular problems it may therefore be advantageous to use a positive-ion machine. What really matters most for choosing one or the other machine is to what extent the entire accelerator system can be operated in a truly quantiative way from the ion source to the detection system. 20 references, 4 figures.

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Pages: 15

Notes

NTIS, PC A02/MF A01.

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  • Symposium of northeastern accelerator personnel, Stony Brook, NY, USA, 15 Oct 1984

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  • Other: DE85007994
  • Report No.: CONF-8410172-7
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 6120468
  • Archival Resource Key: ark:/67531/metadc1113431

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1984

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  • Feb. 22, 2018, 7:45 p.m.

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  • April 17, 2018, 4:02 p.m.

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Kutschera, W. Accelerator mass spectrometry with a coupled tandem-linac system, article, January 1, 1984; Illinois. (digital.library.unt.edu/ark:/67531/metadc1113431/: accessed August 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.