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  • Gatchell, MichaelStockholms universitet,Fysikum (author)

Commissioning of the DESIREE storage rings - a new facility for cold ion-ion collisions

  • Article/chapterEnglish2014

Publisher, publication year, extent ...

  • 2014-04-10
  • Institute of Physics (IOP),2014
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-106615
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-106615URI
  • https://doi.org/10.1088/1742-6596/488/1/012040DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-2414URI
  • https://gup.ub.gu.se/publication/207195URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:kon swepub-publicationtype

Notes

  • AuthorCount:34;
  • We report on the ongoing commissioning of the Double ElectroStatic Ion Ring ExpEriment, DESIREE, at Stockholm University. Beams of atomic carbon anions (C-) and smaller carbon anion molecules (C-2(-), C-3(-), C-4(-) etc.) have been produced in a sputter ion source, accelerated to 10 keV or 20 keV, and stored successfully in the two electrostatic rings. The rings are enclosed in a common vacuum chamber cooled to below 13 Kelvin. The DESIREE facility allows for studies of internally relaxed single isolated atomic, molecular and cluster ions and for collision experiments between cat-and anions down to very low center-of-mass collision energies (meV scale). The total thermal load of the vacuum chamber at this temperature is measured to be 32 W. The decay rates of stored ion beams have two components: a non-exponential component caused by the space charge of the beam itself which dominates at early times and an exponential term from the neutralization of the beam in collisions with residual gas at later times. The residual gas limited storage lifetime of carbon anions in the symmetric ring is over seven minutes while the 1/e lifetime in the asymmetric ring is measured to be about 30 seconds. Although we aim to improve the storage in the second ring, the number of stored ions are now sufficient for many merged beams experiments with positive and negative ions requiring milliseconds to seconds ion storage.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Schmidt, Henning T.Stockholms universitet,Fysikum(Swepub:su)schmidt (author)
  • Thomas, Richard D.Stockholms universitet,Fysikum(Swepub:su)rdt (author)
  • Rosén, StefanStockholms universitet,Fysikum(Swepub:su)sros (author)
  • Reinhed, PeterStockholms universitet,Fysikum(Swepub:su)reinhed (author)
  • Löfgren, PatrikStockholms universitet,Fysikum(Swepub:su)lofgren (author)
  • Brännholm, LarsStockholms universitet,Fysikum (author)
  • Blom, MikaelStockholms universitet,Fysikum(Swepub:su)mblom (author)
  • Björkhage, MikaelStockholms universitet,Fysikum(Swepub:su)bjorkhage (author)
  • Bäckström, ErikStockholms universitet,Fysikum(Swepub:su)erba (author)
  • Alexander, John D.Stockholms universitet,Fysikum(Swepub:su)jalex (author)
  • Leontein, SvenStockholms universitet,Fysikum(Swepub:su)leontein (author)
  • Hanstorp, Dag,1960Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)(Swepub:gu)xhanda (author)
  • Zettergren, HenningStockholms universitet,Fysikum(Swepub:su)henning (author)
  • Liljeby, LeifStockholms universitet,Fysikum(Swepub:su)liljeby (author)
  • Källberg, AndersStockholms universitet,Fysikum(Swepub:su)kallberg (author)
  • Simonsson, AnsgarStockholms universitet,Fysikum(Swepub:su)simonsson (author)
  • Hellberg, FredrikStockholms universitet,Fysikum(Swepub:su)hellb (author)
  • Mannervik, SvenStockholms universitet,Fysikum(Swepub:su)mannervi (author)
  • Larsson, MatsStockholms universitet,Fysikum(Swepub:su)ml (author)
  • Geppert, Wolf D.Stockholms universitet,Fysikum(Swepub:su)wgeppert (author)
  • Rensfelt, Karl-GunnarStockholms universitet,Fysikum(Swepub:su)rensfelt (author)
  • Danared, HåkanStockholms universitet,Fysikum,European Spallation Source, Sweden (author)
  • Paál, AndrasStockholms universitet,Fysikum (author)
  • Masuda, MasaharuStockholms universitet,Fysikum(Swepub:su)masuda (author)
  • Halldén, PerStockholms universitet,Fysikum(Swepub:su)pehal (author)
  • Andler, GuillermoStockholms universitet,Fysikum(Swepub:su)andler (author)
  • Stockett, Mark H.Malmö högskola,Stockholms universitet,Fysikum,Teknik och samhälle (TS)(Swepub:mau)tsheha (author)
  • Chen, TaoStockholms universitet,Fysikum(Swepub:su)tache (author)
  • Källersjö, GunnarStockholms universitet,Fysikum(Swepub:su)kaller (author)
  • Weimer, JanStockholms universitet,Fysikum(Swepub:su)weimer (author)
  • Hansen, Klavs,1958Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)(Swepub:gu)xhankl (author)
  • Hartman, H. (author)
  • Cederquist, HenrikStockholms universitet,Fysikum(Swepub:su)cederq (author)
  • Stockholms universitetFysikum (creator_code:org_t)

Related titles

  • In:XXVIII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2013): Institute of Physics (IOP)488:1
  • In:Journal of Physics, Conference Series: Institute of Physics (IOP)488:11742-65881742-6596

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