Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Mikael Björkhage"'
Autor:
Moa K. Kristiansson, Kiattichart Chartkunchand, Gustav Eklund, Odd M. Hole, Emma K. Anderson, Nathalie de Ruette, Magdalena Kamińska, Najeeb Punnakayathil, José E. Navarro-Navarrete, Stefan Sigurdsson, Jon Grumer, Ansgar Simonsson, Mikael Björkhage, Stefan Rosén, Peter Reinhed, Mikael Blom, Anders Källberg, John D. Alexander, Henrik Cederquist, Henning Zettergren, Henning T. Schmidt, Dag Hanstorp
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
High-precision measurements are useful to find isotopic shifts and electron correlation. Here the authors measure electron affinity and hyperfine splitting of atomic oxygen with higher precision than previous studies.
Externí odkaz:
https://doaj.org/article/1148f9adc2aa4be4b1a0871f4639fa17
Autor:
Mikael Björkhage, Henning T. Schmidt, Mark H. Stockett, Henrik Cederquist, Zettergren Henning
Publikováno v:
Proceedings of the International Astronomical Union. 15:127-131
The multi-photon photodissociation (MPD) action spectrum of the coronene cation $$({{\rm{C}}_{24}}{\rm{H}}_{12}^ + )$$ has been measured as a function of storage time up to 60 s in the cryogenic electrostatic storage ring DESIREE. These measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9a43b7af90730252c96280650249200
https://doi.org/10.1017/s1743921319007130
https://doi.org/10.1017/s1743921319007130
Autor:
Stefan Rosén, Mikael Blom, Najeeb Punnakayathil, Peter Reinhed, Richard D. Thomas, Mark H. Stockett, MingChao Ji, Henning Zettergren, Mikael Björkhage, Henning T. Schmidt, P. Löfgren, Anders Källberg, Ansgar Simonsson, Jon Grumer, Paul S. Barklem, Gustav Eklund, Henrik Cederquist
We have developed an experimental technique to study charge-and energy-flow processes in sub-eV collisions between oppositely charged, internally cold, ions of atoms, molecules, and clusters. Two ion beams are stored in separate rings of the cryogeni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36a375ed52efa9364e3d307b3865b499
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-420768
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-420768
Autor:
Mark H. Stockett, Michael Gatchell, Anders Källberg, P. K. Najeeb, Jon Grumer, Åsa Larson, Wolf D. Geppert, Klavs Hansen, Henning Zettergren, Paul S. Barklem, Mikael Björkhage, Stefan Rosén, O M Hole, Gustav Eklund, MingChao Ji, P. Löfgren, Peter Reinhed, Henning T. Schmidt, Henrik Hartman, Richard D. Thomas, M. K. Kristiansson, John D. Alexander, Henrik Cederquist, N Kono, Dag Hanstorp, Mikael Blom, E. K. Anderson, Ansgar Simonsson
An overview of recent experimental results of studies of negative atomic and molecular ions in the Double ElectroStatic Ion-Ring ExpEriment, DESIREE is given. Metastable level lifetimes in atomic negative ions have been measured by time-dependent las
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce476549fe5bac2af99ac1662120f66b
http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-36645
http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-36645
Autor:
Peter Reinhed, Anders Källberg, Henning Zettergren, N. de Ruette, P. Löfgren, Mark H. Stockett, Stefan Rosén, Henrik Cederquist, M. K. Kristiansson, Mikael Björkhage, Ansgar Simonsson, K. C. Chartkunchand, Gustav Eklund, E. K. Anderson, Mikael Blom, Henning T. Schmidt, Magdalena Kaminska
A sputter ion source with a solid graphite target has been used to produce dianions with a focus on carbon cluster dianions, $\text{C}_{n}^{2-}$, with $n=7-24$. Singly and doubly charged anions from the source were accelerated together to kinetic ene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44bdc6221aae842de316fb274a270a59
Autor:
Johann Zehetner, Ming-Tao Lee, Heshmat Noei, Mikael Björkhage, Peter Amann, Henrik Wentzel, Filippo Cavalca, Mikhail Shipilin, Katrin Ederer, John Åhlund, John D. Alexander, P. Löfgren, Wolfgang Drube, Patrick Loemker, Matthew Weston, David Degerman, Hsin-Yi Wang, Anders Nilsson, Jörgen Gladh, Mikael Blom, Christoph Schlueter
Publikováno v:
Review of scientific instruments 90(10), 103102 (1-12) (2019). doi:10.1063/1.5109321
Review of scientific instruments 90(10), 103102 - (2019). doi:10.1063/1.5109321
We present a new high-pressure x-ray photoelectron spectroscopy system dedicated to probing catalytic reactions under realistic conditions at pressures of multiple b
We present a new high-pressure x-ray photoelectron spectroscopy system dedicated to probing catalytic reactions under realistic conditions at pressures of multiple b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af7dcdf61b79676b4cf6bf325f9b46b5
https://doi.org/10.1063/1.5109321
https://doi.org/10.1063/1.5109321
Autor:
Anders Källberg, Henning Zettergren, V. T. Davis, K. C. Chartkunchand, Gustav Eklund, Ansgar Simonsson, Mikael Blom, Richard D. Thomas, O M Hole, Peter Reinhed, Stefan Rosén, Henning T. Schmidt, M. K. Kristiansson, Mikael Björkhage, R. F. Nascimento, Henrik Cederquist, Paul Neill, P. Löfgren, Magdalena Kaminska, Sven Mannervik, Jeff Thompson, Dag Hanstorp, E. K. Anderson
Publikováno v:
Physical Review A. 94
The intrinsic radiative lifetimes of the $5{d}^{10}6{s}^{}^{2}S_{1/2}$ and $5{d}^{9}6{s}^{2} ^{2}D_{3/2}$ bound excited states in the platinum anion ${\text{Pt}}^{\ensuremath{-}}$ have been studied at cryogenic temperatures at the Double ElectroStati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae1a5a06b202e97b2e29b544b2e0530f
https://doi.org/10.1103/physreva.94.032501
https://doi.org/10.1103/physreva.94.032501
Autor:
Jeff Thompson, Mikael Björkhage, Ansgar Simonsson, P. Löfgren, R. F. Nascimento, K. C. Chartkunchand, Henning T. Schmidt, Paul Neill, Magdalena Kaminska, Henrik Cederquist, Dag Hanstorp, Stefan Rosén, Peter Reinhed, V. T. Davis, O M Hole, Sven Mannervik, Richard D. Thomas, Mikael Blom, Anders Källberg
Publikováno v:
Physical Review A. 93
The intrinsic lifetime of the upper level in the bound-bound $3{d}^{9}\phantom{\rule{0.16em}{0ex}}4{s}^{2}$ ${}^{2}{D}_{3/2} \ensuremath{\rightarrow} 3{d}^{9}\phantom{\rule{0.16em}{0ex}}4{s}^{2}$ ${}^{2}{D}_{5/2}$ radiative transition in ${\text{Ni}}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58a63e68839f029d321b0cc79ae417ec
https://doi.org/10.1103/physreva.93.012512
https://doi.org/10.1103/physreva.93.012512
Autor:
Lars Brännholm, A. Fardi, Iryna Kashperka, Mikael Björkhage, Henning T. Schmidt, A. Orbán, Richard D. Thomas, Henrik Cederquist, Henrik J. Johansson, Peter Reinhed, Stefan Rosén, Deepankar Misra
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 621:83-90
We have tested the ion-storage capabilities of the compact triple-electrode electrostatic ion-beam trap, ConeTrap, down to cryogenic temperatures. The low-temperature operation of this electrostati ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f091f67e9272a127df60b1c075085fd
https://doi.org/10.1016/j.nima.2010.06.008
https://doi.org/10.1016/j.nima.2010.06.008
Autor:
Henning Zettergren, Stefan Rosén, Henning T. Schmidt, Mats Larsson, H. A. B. Johansson, Henrik Cederquist, Mikael Björkhage, Richard D. Thomas, Håkan Danared, Peter Reinhed, A. Paál, L. Bagge, N Haag, Ansgar Simonsson, Leif Liljeby, Anders Källberg, K.-G. Rensfelt, P. Löfgren, Mikael Blom, Wolf D. Geppert
Publikováno v:
International Journal of Astrobiology. 7:205-208
A novel cryogenic electrostatic storage device consisting of two ion-beam storage rings with a common straight section for studies of interactions between oppositely charged ions at low and well-defined relative velocities is under construction at St
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42e04c5f0e7be98fbc2cdd72cfe728df
https://doi.org/10.1017/s1473550408004229
https://doi.org/10.1017/s1473550408004229