J
J. A. R. Griffith
Researcher at University of Birmingham
Publications - 32
Citations - 621
J. A. R. Griffith is an academic researcher from University of Birmingham. The author has contributed to research in topics: Spectroscopy & Hyperfine structure. The author has an hindex of 14, co-authored 32 publications receiving 579 citations.
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Journal ArticleDOI
On-line ion cooling and bunching for collinear laser spectroscopy
A. Nieminen,Paul Campbell,J. Billowes,D. H. Forest,J. A. R. Griffith,Jussi Huikari,Ari Jokinen,Iain Moore,R. Moore,G. Tungate,Juha Äystö +10 more
TL;DR: In collinear laser measurements the signal-to-noise ratio has been improved by a factor of 2 x 10(4), allowing spectroscopic measurements to be made with ion-beam fluxes of approximately 50 ions s(-1).
Journal ArticleDOI
Laser Spectroscopy of Cooled Zirconium Fission Fragments
Paul Campbell,H.L. Thayer,J. Billowes,Peter Dendooven,Kieran Flanagan,D. H. Forest,J. A. R. Griffith,Jussi Huikari,Ari Jokinen,R. Moore,A. Nieminen,G. Tungate,S. G. Zemlyanoi,Juha Äystö +13 more
TL;DR: The first on-line laser spectroscopy of cooled fission fragments is reported, and the mean-square charge radii are found to be almost identical to those of the Sr isotones and previously offered modeling of the radial changes is critically reviewed.
Journal ArticleDOI
First On-Line Laser Spectroscopy of Radioisotopes of a Refractory Element
J. M. G. Levins,David M. Benton,J. Billowes,Paul Campbell,T G Cooper,Peter Dendooven,D. E. Evans,D. H. Forest,I. S. Grant,J. A. R. Griffith,Jussi Huikari,Ari Jokinen,Kari Perajarvi,G. Tungate,G. Yeandle,Juha Äystö +15 more
TL;DR: In this paper, the first fully on-line isotope shift measurement of a radioactive refractory element was reported, which may be applied to all elements and isomers with lifetimes as short as 1 ms.
Journal ArticleDOI
Ultraviolet Photon Emission Observed in the Search for the Decay of the 229 Th Isomer
Journal ArticleDOI
Nuclear charge radii of neutron deficient titanium isotopes 44Ti and 45Ti
Yu. P. Gangrsky,K. P. Marinova,S. G. Zemlyanoi,Iain Moore,J. Billowes,Paul Campbell,Kieran Flanagan,D. H. Forest,J. A. R. Griffith,Jussi Huikari,R. Moore,A. Nieminen,H.L. Thayer,G. Tungate,Juha Äystö +14 more
TL;DR: In this article, the evolution of the even-N Ti nuclear radii showed a generally increasing tendency with decreasing number of neutrons, which is consistent with the predictions of the relativistic mean-field theory.