Storing keV negative ions for hours: Lifetime measurements in new time domains

29th International Conference on Photonic, Electronic, and Atomic Collisions

Kaminska, M.^1,2 ; Bäckström, E.^1 ; Hanstorpt, D.^3 ; Hole, O.M.^1 ; Nascimento, R.F.^1 ; Blom, M.^1 ; Björkhage, M.^1 ; Källberg, A.^1 ; Löfgren, P.^1 ; Reinhed, P.^1 ; Rosén, S.^1 ; Thomas, R.D.^1 ; Mannervik, S.^1 ; Schmidt, H.T.^1 ; Cederquist, H.^1

Department of Physics, Stockholm University, Alba Nova University Centre, Stockholm

SE-106 91, Sweden^1

Institute of Physics, Jan Kochanowski University, Kielce

25-369, Poland^2

Department of Physics, University of Gothenburg, Gteborg

SE-412 96, Sweden^3

关键词: Ion storage;    Lifetime measurements;    Negatively charged;    Orders of magnitude;    Time domain;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112119/pdf
DOI  :  10.1088/1742-6596/635/11/112119

来源: IOP

【 摘 要 】

We have used one of the cryogenic ion storage rings of DESIREE to measure the lifetime of the2P°1/2level in the sulfur anion to be 503 ± 43 seconds. This is orders of magnitude longer than any previously measured lifetime in a negatively charged ion.