M. Vilén
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View article: Enhanced sensitivity for electron affinity measurements of rare elements
Enhanced sensitivity for electron affinity measurements of rare elements Open
The electron affinity (EA), the energy released when a neutral atom binds an additional electron, is a fundamental property of atoms that is governed by electron-electron correlations and is strongly related to an element’s chemical reacti…
View article: Binding energies, charge radii, spins, and moments: Odd-odd Ag isotopes and discovery of a new isomer
Binding energies, charge radii, spins, and moments: Odd-odd Ag isotopes and discovery of a new isomer Open
We report on the masses and hyperfine structure of ground and isomeric states in 114,116,118,120 Ag isotopes, measured with the phase-imaging ion-cyclotron-resonance technique (PI-ICR) with the JYFLTRAP mass spectrometer and the collinear …
View article: $β$-delayed neutron spectroscopy of $^{85, 86}$As with MONSTER at IGISOL
$β$-delayed neutron spectroscopy of $^{85, 86}$As with MONSTER at IGISOL Open
The $β$-delayed neutron emission in the $^{85, 86}$As $β$-decays has been measured at the Ion Guide Isotope Separator On Line facility of the Accelerator Laboratory of the University of Jyväskylä. The complete $β$-decays have been studied …
View article: Binding energies, charge radii, spins and moments: odd-odd Ag isotopes and discovery of a new isomer
Binding energies, charge radii, spins and moments: odd-odd Ag isotopes and discovery of a new isomer Open
We report on the masses and hyperfine structure of ground and isomeric states in $^{114,116,118,120}$Ag isotopes, measured with the phase-imaging ion-cyclotron-resonance technique (PI-ICR) with the JYFLTRAP mass spectrometer and the collin…
View article: Isomeric states of fission fragments explored via Penning trap mass spectrometry at IGISOL
Isomeric states of fission fragments explored via Penning trap mass spectrometry at IGISOL Open
The masses of $^{84}$Br, $^{105}$Mo, $^{115,119,121}$Pd, $^{122}$Ag,\n$^{127,129}$In, $^{132}$Sb and their respective isomeric states have been\nmeasured with the JYFLTRAP Penning trap mass spectrometer using the\nphase-imaging ion-cyclotr…
View article: High-precision mass measurements of the ground and isomeric states in $^{124,125}$Ag
High-precision mass measurements of the ground and isomeric states in $^{124,125}$Ag Open
The masses of the ground and isomeric states in $^{124,125}$Ag have been measured using the phase-imaging ion-cyclotron-resonance technique at the JYFLTRAP double Penning trap mass spectrometer. The ground states of $^{124}$Ag and $^{125}$…
View article: First investigation on the isomeric ratio in multinucleon transfer reactions: Entrance channel effects on the spin distribution
First investigation on the isomeric ratio in multinucleon transfer reactions: Entrance channel effects on the spin distribution Open
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 its ground state (9/2+) at the IGISOL facility using a 945 MeV 136Xe beam impin…
View article: Long-sought isomer turns out to be the ground state of $^{76}$Cu
Long-sought isomer turns out to be the ground state of $^{76}$Cu Open
Isomers close to the doubly magic nucleus $^{78}$Ni ($Z=28$, $N=50$) provide essential information on the shell evolution and shape coexistence far from stability. The existence of a long-lived isomeric state in $^{76}$Cu has been debated …
View article: Mass measurements in the $^{132}$Sn region with the JYFLTRAP double Penning trap mass spectrometer
Mass measurements in the $^{132}$Sn region with the JYFLTRAP double Penning trap mass spectrometer Open
We report on new precision mass measurements of neutron-rich $^{137}$Sb and $^{136-142}$I isotopes from the JYFLTRAP double Penning trap mass spectrometer. We confirm the value from the previous Penning-trap measurement of $^{137}$Sb at th…
View article: High-precision mass measurements of neutron deficient silver isotopes probe the robustness of the $N$ = 50 shell closure
High-precision mass measurements of neutron deficient silver isotopes probe the robustness of the $N$ = 50 shell closure Open
High-precision mass measurements of exotic $^{95-97}$Ag isotopes close to the $N = Z$ line have been conducted with the JYFLTRAP double Penning trap mass spectrometer, with the silver ions produced using the recently commissioned inductive…
View article: First investigation on the isomeric ratio in multinucleon transfer reactions: Entrance channel effects on the spin distribution
First investigation on the isomeric ratio in multinucleon transfer reactions: Entrance channel effects on the spin distribution Open
The multinucleon transfer (MNT) reaction approach was successfully employed for the first time to measure the isomeric ratios (IRs) of $^{211}$Po (25/2$^+$) isomer and its (9/2$^+$) ground state at the IGISOL facility using a 945 MeV $^{13…
View article: Further evidence for shape coexistence in $^{79}$Zn$^{m}$ near doubly-magic $^{78}$Ni
Further evidence for shape coexistence in $^{79}$Zn$^{m}$ near doubly-magic $^{78}$Ni Open
Isomers close to doubly-magic $^{78}_{28}$Ni$_{50}$ provide essential information on the shell evolution and shape coexistence near the ${Z=28}$ and ${N=50}$ double shell closure. We report the excitation energy measurement of the $1/2^{+}…
View article: Increased beam energy as a pathway towards a highly selective and high-flux MR-ToF mass separator
Increased beam energy as a pathway towards a highly selective and high-flux MR-ToF mass separator Open
Many experiments at radioactive ion beam (RIB) facilities suffer from isobaric contamination, i.e. unwanted\nions of similar mass. During the last decade, Multi-Reflection Time-of-Flight (MR-ToF) devices have gained\nremarkable attention f…
View article: Simulation studies of a 30-keV MR-ToF device for highly sensitive collinear laser spectroscopy
Simulation studies of a 30-keV MR-ToF device for highly sensitive collinear laser spectroscopy Open
The Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS) seeks to extend the reach of high-resolution collinear laser spectroscopy (CLS) to more exotic radionuclides. In this novel technique, ion bunches of short-lived…
View article: Doppler and sympathetic cooling for the investigation of short-lived radioactive ions
Doppler and sympathetic cooling for the investigation of short-lived radioactive ions Open
At radioactive ion beam (RIB) facilities, ions of short-lived radionuclides are cooled and bunched in buffergas-filled Paul traps to improve the ion-beam quality for subsequent experiments. To deliver even colder ions, beneficial to RIB ex…
View article: Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae
Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae Open
We report the first high-precision mass measurements of the neutron-rich nuclei Ni-74,Ni-75 and the clearly identified ground state of Cu-76, along with a more precise mass-excess value of Cu-78, performed with the double Penning trap JYFL…
View article: Evidence of a sudden increase in the nuclear size of proton-rich silver-96
Evidence of a sudden increase in the nuclear size of proton-rich silver-96 Open
Understanding the evolution of the nuclear charge radius is one of the long-standing challenges for nuclear theory. Recently, density functional theory calculations utilizing Fayans functionals have successfully reproduced the charge radii…
View article: Study of radial motion phase advance during motion excitations in a\n Penning trap and accuracy of JYFLTRAP mass spectrometer
Study of radial motion phase advance during motion excitations in a\n Penning trap and accuracy of JYFLTRAP mass spectrometer Open
Phase-imaging ion-cyclotron-resonance technique has been implemented at the\nPenning-trap mass spectrometer JYFLTRAP and is routinely employed for mass\nmeasurements of stable and short-lived nuclides produced at IGISOL facility.\nSystemat…
View article: Erratum: Precision Mass Measurements on Neutron-Rich Rare-Earth Isotopes at JYFLTRAP: Reduced Neutron Pairing and Implications for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>r</mml:mi></mml:math>-Process Calculations [Phys. Rev. Lett. <b>120</b>, 262701 (2018)]
Erratum: Precision Mass Measurements on Neutron-Rich Rare-Earth Isotopes at JYFLTRAP: Reduced Neutron Pairing and Implications for -Process Calculations [Phys. Rev. Lett. <b>120</b>, 262701 (2018)] Open
This corrects the article DOI: 10.1103/PhysRevLett.120.262701.
View article: Exploring the mass surface near the rare-earth abundance peak via precision mass measurements at JYFLTRAP
Exploring the mass surface near the rare-earth abundance peak via precision mass measurements at JYFLTRAP Open
The JYFLTRAP double Penning trap at the Ion Guide Isotope Separator On-Line\n(IGISOL) facility has been used to measure the atomic masses of 13 neutron-rich\nrare-earth isotopes. Eight of the nuclides, $^{161}$Pm, $^{163}$Sm,\n$^{164,165}$…