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Storing keV negativ...
Storing keV negative ions for an hour : The lifetime of the metastable 2P1/2 level in 32S−
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- Bäckström, Erik, 1983- (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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- Hole, Odd Magnar (author)
- Stockholms universitet,Fysikum
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- Kaminska, Magdalena (author)
- Stockholms universitet,Fysikum,Jan Kochanowski University, Poland
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- Nascimento, Rodrigo F. (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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- Källberg, Anders (author)
- Stockholms universitet,Fysikum
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- Löfgren, Patrik (author)
- Stockholms universitet,Fysikum
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- Reinhed, Peter (author)
- Stockholms universitet,Fysikum
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- Rosén, Stefan (author)
- Stockholms universitet,Fysikum
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- Simonsson, Ansgar (author)
- Stockholms universitet,Fysikum
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- Thomas, Richard D. (author)
- Stockholms universitet,Fysikum
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- Mannervik, Sven (author)
- Stockholms universitet,Fysikum
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- Schmidt, Henning T. (author)
- Stockholms universitet,Fysikum
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- Cederquist, Henrik (author)
- Stockholms universitet,Fysikum
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(creator_code:org_t)
- 2015
- 2015
- English.
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In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 114:14
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Abstract
Subject headings
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- We use a novel electrostatic ion storage ring to measure the radiative lifetime of the upper level in the 3p 5 P 2 o 1/2 →3p 5 P 2 o 3/2 spontaneous radiative decay in S − 32 to be 503±54 sec . This is by orders of magnitude the longest lifetime ever measured in a negatively charged ion. Cryogenic cooling of the storage ring gives a residual-gas pressure of a few times 10 −14 mbar at 13 K and storage of 10 keV sulfur anions for more than an hour. Our experimental results differ by 1.3σ from the only available theoretical prediction.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- fysik
- Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Bäckström, Erik, ...
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Hanstorp, Dag, 1 ...
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Hole, Odd Magnar
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Kaminska, Magdal ...
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Nascimento, Rodr ...
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Blom, Mikael
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Björkhage, Mikae ...
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Källberg, Anders
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Löfgren, Patrik
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Reinhed, Peter
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Rosén, Stefan
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Simonsson, Ansga ...
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Thomas, Richard ...
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Mannervik, Sven
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Schmidt, Henning ...
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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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and Atom and Molecul ...
- Articles in the publication
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Physical Review ...
- By the university
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Stockholm University
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University of Gothenburg