Search Results - "JOKINEN, A"
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Phase-Imaging Ion-Cyclotron-Resonance technique at the JYFLTRAP double Penning trap mass spectrometer
Published in The European physical journal. A, Hadrons and nuclei (01-09-2018)“… The Phase-Imaging Ion-Cyclotron-Resonance (PI-ICR) technique has been commissioned at the JYFLTRAP double Penning trap mass spectrometer. This technique is…”
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A 1500-year multiproxy record of coastal hypoxia from the northern Baltic Sea indicates unprecedented deoxygenation over the 20th century
Published in Biogeosciences (05-07-2018)“…The anthropogenically forced expansion of coastal hypoxia is a major environmental problem affecting coastal ecosystems and biogeochemical cycles throughout…”
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Revisiting the applicability and constraints of molybdenum- and uranium-based paleo redox proxies: comparing two contrasting sill fjords
Published in Biogeosciences (19-12-2023)“…Sedimentary molybdenum (Mo) and uranium (U) enrichments are often used as redox proxies to reconstruct bottom water redox changes. However, these redox proxies…”
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Towards commissioning the new IGISOL-4 facility
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (15-12-2013)“…•The commissioning of the new IGISOL-4 facility.•First successful implantation of neutron-deficient Pd.•In-jet laser ionization of copper demonstrated. The Ion…”
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Precision Mass Measurements on Neutron-Rich Rare-Earth Isotopes at JYFLTRAP: Reduced Neutron Pairing and Implications for r-Process Calculations
Published in Physical review letters (29-06-2018)“…The rare-earth peak in the r-process abundance pattern depends sensitively on both the astrophysical conditions and subtle changes in nuclear structure in the…”
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High-precision measurement of a low Q value for allowed β−-decay of 131I related to neutrino mass determination
Published in Physics letters. B (10-07-2022)“…The ground-state-to-ground-state β−-decay 131I (7/2+) → 131Xe (3/2+) Q value was determined with high precision utilizing the double Penning trap mass…”
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Long-sought isomer turns out to be the ground state of 76Cu
Published in Physics letters. B (01-06-2024)“…Isomers close to the doubly magic nucleus 78Ni (Z=28, N=50) provide essential information on the shell evolution and shape coexistence far from stability. The…”
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Further Evidence for Shape Coexistence in ^{79}Zn^{m} near Doubly Magic ^{78}Ni
Published in Physical review letters (01-12-2023)“…Isomers close to doubly magic _{28}^{78}Ni_{50} provide essential information on the shell evolution and shape coexistence near the Z=28 and N=50 double shell…”
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High-precision electron-capture Q value measurement of 111In for electron-neutrino mass determination
Published in Physics letters. B (10-09-2022)“…A precise determination of the ground state 111In (9/2+) electron capture to ground state of 111Cd (1/2+) Q value has been performed utilizing the double…”
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Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae
Published in Physics letters. B (01-10-2022)“…We report the first high-precision mass measurements of the neutron-rich nuclei 74,75Ni and the clearly identified ground state of 76Cu, along with a more…”
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First investigation on the isomeric ratio in multinucleon transfer reactions: Entrance channel effects on the spin distribution
Published in Physics letters. B (01-06-2024)“…The multinucleon transfer (MNT) reaction approach was successfully employed for the first time to measure the isomeric ratios (IRs) of 211Po isomer (25/2+) and…”
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12
JYFLTRAP: a Penning trap for precision mass spectroscopy and isobaric purification
Published in The European physical journal. A, Hadrons and nuclei (01-04-2012)“…In this article a comprehensive description and performance of the double Penning-trap setup JYFLTRAP will be detailed. The setup is designed for atomic mass…”
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13
Direct high-precision measurement of the mass difference of $$^{77}$$As–$$^{77}$$Se related to neutrino mass determination
Published in The European physical journal. A, Hadrons and nuclei (08-05-2024)“…Abstract The first direct determination of the ground-state-to-ground-state $${\beta ^{-}}$$ β - -decay Q -value of $$^{77}$$ 77 As to $$^{77}$$ 77 Se was…”
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14
Proton-neutron pairing correlations in the self-conjugate nucleus 42Sc
Published in Physics letters. B (01-08-2021)“…Collinear laser spectroscopy of the N=Z=21 self-conjugate nucleus 42Sc has been performed at the JYFL IGISOL IV facility in order to determine the change in…”
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Mass measurements towards doubly magic $^{78}$Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae
Published in Physics letters. B (2022)“…We report the first high-precision mass measurements of the neutron-rich nuclei 74,75 Ni and the clearly identified ground state of 76 Cu, along with a more…”
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Beam cooler for low-energy radioactive ions
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-08-2001)“…An ion beam cooler for mass-separated radioactive ion beams has been developed and tested at the IGISOL-type mass separator facility. Technical description and…”
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Nuclear spins and moments of Ga isotopes reveal sudden structural changes between N=40 and N=50
Published in Physical review letters (25-06-2010)“…Collinear laser spectroscopy was performed on Ga (Z=31) isotopes at ISOLDE, CERN. A gas-filled linear Paul trap (ISCOOL) was used to extend measurements…”
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Three beta-decaying states in 128In and 130In resolved for the first time using Penning-trap techniques
Published in Physics letters. B (01-09-2020)“…Isomeric states in 128In and 130In have been studied with the JYFLTRAP Penning trap at the IGISOL facility. By employing state-of-the-art ion manipulation…”
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JYFLTRAP: a cylindrical Penning trap for isobaric beam purification at IGISOL
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-08-2004)“…A Penning trap has been installed for isobaric beam purification at the IGISOL-facility at the University of Jyväskylä. In this paper, the technical details of…”
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Laser spectroscopy of niobium fission fragments: first use of optical pumping in an ion beam cooler buncher
Published in Physical review letters (05-06-2009)“…A new method of optical pumping in an ion beam cooler buncher has been developed to selectively enhance ionic metastable state populations. The technique…”
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