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Your search keyword '"Jokinen A"' showing total 11 results
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11 results on '"Jokinen A"'

1. The beta-decay of 11 Al

Author

Achouri, N.L., de Oliveira Santos, F., Lewitowicz, M., Blank, B., Aysto, J., Canchel, G., Czajkowski, S., Dendooven, P.G., Emsallem, A., Giovinazzo, J., Guillet, N., Jokinen, A., Laird, A.M., Longour, C., Peräjärvi, K., Smirnova, N., Stanoiu, M., Thomas, J.C., and Rijksuniversiteit Groningen

Published
2006

2. New levels in 118Pd observed in the beta-decay of very neutron-rich 118Rh isotope

Author

Sami Rinta-Antila, Jussi Huikari, Ari Jokinen, A. Nieminen, Veli Kolhinen, S. Nummela, Heikki Penttilä, Wang You-Bao, J. C. Wang, J. Szerypo, Kari Perajarvi, Juha Äystö, G. Lhersonneau, Peter Dendooven, and Rijksuniversiteit Groningen

Subjects
Physics, Isotope, Fission, Nuclear Theory, General Physics and Astronomy, Natural uranium, Beta decay, Coincidence, Nuclear physics, medicine.anatomical_structure, medicine, Neutron, Nuclear Experiment, Spectroscopy, Nucleus
Abstract

We investigate the β decay of very neutron-rich 118Rh isotope using on-line mass-separated sources which are produced by applying 25 MeV proton induced symmetric fission of natural uranium at the IGISOL facility. The β–γ and γ–γ coincidence spectroscopy is employed to establish the level scheme of daughter nucleus 118Pd. Five low-lying new levels are identified for the first time with tentative spin and parity assignments based on the even-mass Pd systematics.

Published
2006
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3. Proceedings of Science (NIC-IX) 025

Author

Diget, C.A., Borge, M.J.G., Boutami, R., Dendooven, P.G., Eronen, T., Fox, S., Fulton, B.R., Fynbo, H.O.U., Jeppesen, H., Jokinen, A., Jonson, B., Kankainen, A., Moore, I., Nieminen, A., Pedersen, S.G., Penttilä, H., Pucknell, V.F.E., Riisager, K., Rinta-Antila, S., Tengblad, O., Wang, Y.B., Wilhelmsen, K., Aysto, J., and Rijksuniversiteit Groningen

Published
2006

5. Structure of doubly-even cadmium nuclei studied by beta-decay

Author

Rinta-Antila, S., Wang, Y., Dendooven, P.G., Huikari, J., Jokinen, A., Kankainen, A., Kolhinen, V., Lhersonneau, G., Nieminen, A., Nummela, S., Penttilä, H., Peräjärvi, K., Szerypo, J., Wang, J., Aysto, J., and Rijksuniversiteit Groningen

Published
2005

6. News on 12C from beta-decay studies

Author

H. Jeppesen, Thomas Nilsson, K. Wilhelmsen, Yolanda Prezado, Leonid Weissman, U. C. Bergmann, Juha Äystö, K. Riisager, Wenxue Huang, Björn Jonson, I. Storgaard Vogelius, L. M. Fraile, Mikael Meister, Gunnar Nyman, C. Aa. Diget, María José García Borge, S. Franchoo, Peter M. Jones, Sami Rinta-Antila, Joakim Cederkäll, Ulli Köster, Y. Wang, Peter Dendooven, M. Turrión, H O U Fynbo, B. R. Fulton, Olof Tengblad, Jussi Huikari, Ari Jokinen, and KVI - Center for Advanced Radiation Technology

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Context (language use), Radioactive beam
Abstract

We discuss the importance of the spectroscopic properties of the resonances of 12C just above the 3α-threshold, and review the existing experimental information of this region with emphasis on O+ and 2+ states. A new experimental approach for studying the β-decays of 12B and 12N is presented based on techniques developed in the context of Radioactive beam (rare isotope) physics. Finally preliminary results from an ongoing analysis of two recent experiments are given. © 2004 Published by Elsevier B.V.

Published
2004

8. Reinvestigation of the beta-decay of 110Mo

Author

Wang, J.C., Dendooven, P.G., Huikari, J., Jokinen, A., Lhersonneau, G., Nieminen, A., Peräjävi, K., Rinta-Antila, S., Aysto, J., and Rijksuniversiteit Groningen

Published
2004

9. Laser spectroscopy of neutron deficient zirconium isotopes

Author

Juha Äystö, Jussi Huikari, Kieran Flanagan, G. Tungate, Ari Jokinen, Paul Campbell, Peter Dendooven, H.L. Thayer, R. Moore, J. Billowes, S. G. Zemlyanoi, J. A. R. Griffith, A. Nieminen, D. H. Forest, and Rijksuniversiteit Groningen

Subjects
Physics, Nuclear and High Energy Physics, Magnetic moment, Spins, Isotope, Nuclear Theory, Quadrupole, Isotopes of zirconium, Neutron, Atomic physics, Spectroscopy, Ion
Abstract

The first optical measurements of the neutron deficient isotopes, 87-89Zr, and also the two long-lived isomers, 87m,89mZr, have been performed using the new technique of collinear laser spectroscopy of cooled, bunched ion beams. Nuclear mean-square charge radii, spins, magnetic moments and quadrupole moments spanning the N = 50 shell closure are reported. The \"kink\" in the charge radii trends at the neutron shell closure is the most pronounced obsd. for any element in the region. [on SciFinder (R)]

Published
2002

10. First results from laser spectroscopy on bunched radioactive beams from the JYFL ion-beam cooler

Author

Kieran Flanagan, J. A. R. Griffith, Y.P. Gangrsky, H.L. Thayer, Iain Moore, S. G. Zemlyanoi, Peter Dendooven, Paul Campbell, G. Tungate, R. Moore, Jussi Huikari, Ari Jokinen, Juha Äystö, D. H. Forest, J. Billowes, A. Nieminen, and Rijksuniversiteit Groningen

Subjects
Physics, Nuclear and High Energy Physics, Ion beam, law, Ionization, Magnet, Nuclear fusion, Atomic physics, Laser, Spectroscopy, Order of magnitude, law.invention, Ion
Abstract

A new RFQ ion-beam cooler and buncher, installed after the mass-separating magnet of the ion guide isotope separator, IGISOL, JYFL, has dramatically increased the scope of on-line laser spectroscopy at this facility. The device, operated in a bunching mode, has permitted new measurements on short-lived radionuclei in the Ti, Zr and Hf chains at a sensitivity two orders of magnitude greater than that previously achieved. The device has also opened new prospects for laser-based nuclear spectroscopy at the facility, particularly collinear resonance ionisation spectroscopy.

Published
2002

11. Laser spectroscopy of cooled zirconium fission fragments

Author

Paul Campbell, Jussi Huikari, Ari Jokinen, R. Moore, A. Nieminen, Peter Dendooven, D. H. Forest, Juha Äystö, S. G. Zemlyanoi, G. Tungate, J. A. R. Griffith, Kieran Flanagan, J. Billowes, H.L. Thayer, and Rijksuniversiteit Groningen

Subjects
Materials science, Fission, General Physics and Astronomy, Charge density, Ion, Dipole, Nuclear magnetic resonance, Quadrupole, Physics::Atomic Physics, Ion trap, Atomic physics, Nuclear Experiment, Spectroscopy, Hyperfine structure
Abstract

The first on-line laser spectroscopy of cooled fission fragments is reported. The $^{\mathrm{96}\mathrm{--}\mathrm{102}}\mathrm{Z}\mathrm{r}$ ions, produced in uranium fission, were extracted and separated using an ion guide isotope separator. The ions were cooled and bunched for collinear laser spectroscopy by a gas-filled linear Paul trap. New results for nuclear mean-square charge radii, dipole, and quadrupole moments are reported across the $N=60$ shape change. 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.

Published
2002

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