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Commissioning of th...
Commissioning of the DESIREE storage rings - a new facility for cold ion-ion collisions
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- Gatchell, Michael (author)
- Stockholms universitet,Fysikum
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- Schmidt, Henning T. (author)
- Stockholms universitet,Fysikum
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- Thomas, Richard D. (author)
- Stockholms universitet,Fysikum
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- Rosén, Stefan (author)
- Stockholms universitet,Fysikum
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- Reinhed, Peter (author)
- Stockholms universitet,Fysikum
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- Löfgren, Patrik (author)
- Stockholms universitet,Fysikum
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- Brännholm, Lars (author)
- Stockholms universitet,Fysikum
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- Blom, Mikael (author)
- Stockholms universitet,Fysikum
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- Björkhage, Mikael (author)
- Stockholms universitet,Fysikum
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- Bäckström, Erik (author)
- Stockholms universitet,Fysikum
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- Alexander, John D. (author)
- Stockholms universitet,Fysikum
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- Leontein, Sven (author)
- Stockholms universitet,Fysikum
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- Hanstorp, Dag, 1960 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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- Zettergren, Henning (author)
- Stockholms universitet,Fysikum
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- Liljeby, Leif (author)
- Stockholms universitet,Fysikum
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- Källberg, Anders (author)
- Stockholms universitet,Fysikum
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- Simonsson, Ansgar (author)
- Stockholms universitet,Fysikum
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- Hellberg, Fredrik (author)
- Stockholms universitet,Fysikum
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- Mannervik, Sven (author)
- Stockholms universitet,Fysikum
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- Larsson, Mats (author)
- Stockholms universitet,Fysikum
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- Geppert, Wolf D. (author)
- Stockholms universitet,Fysikum
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- Rensfelt, Karl-Gunnar (author)
- Stockholms universitet,Fysikum
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- Danared, Håkan (author)
- Stockholms universitet,Fysikum,European Spallation Source, Sweden
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- Paál, Andras (author)
- Stockholms universitet,Fysikum
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- Masuda, Masaharu (author)
- Stockholms universitet,Fysikum
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- Halldén, Per (author)
- Stockholms universitet,Fysikum
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- Andler, Guillermo (author)
- Stockholms universitet,Fysikum
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- Stockett, Mark H. (author)
- Malmö högskola,Stockholms universitet,Fysikum,Teknik och samhälle (TS)
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- Chen, Tao (author)
- Stockholms universitet,Fysikum
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- Källersjö, Gunnar (author)
- Stockholms universitet,Fysikum
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- Weimer, Jan (author)
- Stockholms universitet,Fysikum
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- Hansen, Klavs, 1958 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Hartman, H. (author)
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- Cederquist, Henrik (author)
- Stockholms universitet,Fysikum
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(creator_code:org_t)
- 2014-04-10
- 2014
- English.
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In: XXVIII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2013). - : Institute of Physics (IOP). ; 488:1
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https://mau.diva-por... (primary) (Raw object)
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Abstract
Subject headings
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- 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
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- fysik
- Physics
- electrostatic storage ring
Publication and Content Type
- ref (subject category)
- kon (subject category)
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- By the author/editor
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Gatchell, Michae ...
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Schmidt, Henning ...
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Thomas, Richard ...
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Rosén, Stefan
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Reinhed, Peter
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Löfgren, Patrik
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Brännholm, Lars
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Blom, Mikael
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Björkhage, Mikae ...
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Bäckström, Erik
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Alexander, John ...
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Leontein, Sven
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Hanstorp, Dag, 1 ...
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Zettergren, Henn ...
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Liljeby, Leif
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Källberg, Anders
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Simonsson, Ansga ...
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Hellberg, Fredri ...
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Mannervik, Sven
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Larsson, Mats
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Geppert, Wolf D.
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Rensfelt, Karl-G ...
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Danared, Håkan
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Paál, Andras
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Masuda, Masaharu
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Halldén, Per
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Andler, Guillerm ...
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Stockett, Mark H ...
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Chen, Tao
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Källersjö, Gunna ...
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Weimer, Jan
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Hansen, Klavs, 1 ...
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Hartman, H.
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Cederquist, Henr ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Accelerator Phys ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
- Articles in the publication
- XXVIII Internati ...
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Journal of Physi ...
- By the university
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Stockholm University
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Malmö University
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University of Gothenburg