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NSR database version of May 24, 2024.

Search: Author = P.Campbell

Found 56 matches.

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2024DE01      Phys.Lett. B 848, 138352 (2024)

R.P.de Groote, D.A.Nesterenko, A.Kankainen, M.L.Bissell, O.Beliuskina, J.Bonnard, P.Campbell, L.Canete, B.Cheal, C.Delafosse, A.de Roubin, C.S.Devlin, J.Dobaczewski, T.Eronen, R.F.Garcia Ruiz, S.Geldhof, W.Gins, M.Hukkanen, P.Imgram, R.Mathieson, A.Koszorus, I.D.Moore, I.Pohjalainen, M.Reponen, B.van den Borne, M.Vilen, S.Zadvornaya

Measurements of binding energies and electromagnetic moments of silver isotopes – A complementary benchmark of density functional theory

NUCLEAR MOMENTS 113,113m,115,115m,117,117m,119,119m,121,121m,123,123mAg; measured frequencies. 107,109Ag, 133Cs; deduced nuclear binding and excitation energies, J, magnetic dipole and electric quadrupole moments, the crucial role of the spin-orbit strength and time-odd mean fields play in the simultaneous description of electromagnetic moments and nuclear binding. Comparison with calculations performed with density functional theory (DFT). The JYFLTRAP mass spectrometer and the collinear laser spectroscopy beamline at the Ion Guide Isotope Separator On-Line (IGISOL) facility.

doi: 10.1016/j.physletb.2023.138352
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2024KO01      Eur.Phys.J. A 60, 20 (2024)

A.Koszorus, R.P.de Groote, B.Cheal, P.Campbell, I.D.Moore

Nuclear structure studies by collinear laser spectroscopy

doi: 10.1140/epja/s10050-024-01230-9
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2023KO31      Sci. Rep. 13, 4783 (2023)

A.Koszorus, M.Block, P.Campbell, B.Cheal, R.P.de Groote, W.Gins, I.D.Moore, A.Ortiz-Cortes, A.Raggio, J.Warbinek

High-precision measurements of the hyperfine structure of cobalt ions in the deep ultraviolet range

ATOMIC PHYSICS 59Co; measured frequencies; deduced hyperfine parameters, a 100-fold improvement on the precision of the hyperfine A parameters, and furthermore present newly measured hyperfine B parameters. Collinear laser spectroscopy, the Ion Guide Separator On-Line (IGISOL) IV facility in Jyvaskyla, Finland.

doi: 10.1038/s41598-023-31378-1
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2023PL01      Phys.Rev.Lett. 131, 222502 (2023)

P.Plattner, E.Wood, L.Al Ayoubi, O.Beliuskina, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, R.P.de Groote, C.S.Devlin, T.Eronen, L.Filippin, R.F.Garcia Ruiz, Z.Ge, S.Geldhof, W.Gins, M.Godefroid, H.Heylen, M.Hukkanen, P.Imgram, A.Jaries, A.Jokinen, A.Kanellakopoulos, A.Kankainen, S.Kaufmann, K.Konig, A.Koszorus, S.Kujanpaa, S.Lechner, S.Malbrunot-Ettenauer, P.Muller, R.Mathieson, I.Moore, W.Nortershauser, D.Nesterenko, R.Neugart, G.Neyens, A.Ortiz-Cortes, H.Penttila, I.Pohjalainen, A.Raggio, M.Reponen, S.Rinta-Antila, L.V.Rodriguez, J.Romero, R.Sanchez, F.Sommer, M.Stryjczyk, V.Virtanen, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov

Nuclear Charge Radius of 26mAl and Its Implication for Vud in the Quark Mixing Matrix

NUCLEAR MOMENTS 26,26m,27Al [from 27Al(p, d), E=25 MeV]; measured frequencies; deduced resonance spectrum, isotope shifts, mean square charge radii, log ft values. Collinear laser spectroscopy. The COLLAPS beamline at ISOLDE-CERN and the IGISOL CLS beamline.

doi: 10.1103/PhysRevLett.131.222502
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2022BA15      Phys.Lett. B 829, 137064 (2022)

S.W.Bai, A.Koszorus, B.S.Hu, X.F.Yang, J.Billowes, C.L.Binnersley, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, T.E.Cocolios, R.P.de Groote, C.S.Devlin, K.T.Flanagan, R.F.Garcia Ruiz, H.Heylen, J.D.Holt, A.Kanellakopoulos, J.Kramer, V.Lagaki, B.Maass, S.Malbrunot-Ettenauer, T.Miyagi, R.Neugart, G.Neyens, W.Nortershauser, L.V.Rodriguez, F.Sommer, A.R.Vernon, S.J.Wang, X.B.Wang, S.G.Wilkins, Z.Y.Xu, C.X.Yuan

Electromagnetic moments of scandium isotopes and N=28 isotones in the distinctive 0f7/2 orbit

NUCLEAR MOMENTS 41,43,45,46,47,49Sc; measured frequencies; deduced hfs constants, electromagnetic dipole and quadrupole moments. Comparison with theoretical calculations. Two collinear laser spectroscopy (CLS) setups, COLLAPS and CRIS at ISOLDE-CERN.

doi: 10.1016/j.physletb.2022.137064
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2022GE04      Phys.Rev.Lett. 128, 152501 (2022)

S.Geldhof, M.Kortelainen, O.Beliuskina, P.Campbell, L.Caceres, L.Canete, B.Cheal, K.Chrysalidis, C.S.Devlin, R.P.de Groote, A.de Roubin, T.Eronen, Z.Ge, W.Gins, A.Koszorus, S.Kujanpaa, D.Nesterenko, A.Ortiz-Cortes, I.Pohjalainen, I.D.Moore, A.Raggio, M.Reponen, J.Romero, F.Sommer

Impact of Nuclear Deformation and Pairing on the Charge Radii of Palladium Isotopes

NUCLEAR MOMENTS 98,99,100,101,102Pd, 104,105,106Pd, 108,110,112,114,116,118Pd; measured frequencies; deduced isotope shifts and resulting changes in mean-square charge radii, precise relationship between nuclear quadrupole deformation and the nuclear size. Comparison with quadrupole deformation energy calculations.

doi: 10.1103/PhysRevLett.128.152501
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2021KO26      Phys.Lett. B 819, 136439 (2021)

A.Koszorus, L.J.Vormawah, R.Beerwerth, M.L.Bissell, P.Campbell, B.Cheal, C.S.Devlin, T.Eronen, S.Fritzsche, S.Geldhof, H.Heylen, J.D.Holt, A.Jokinen, S.Kelly, I.D.Moore, T.Miyagi, S.Rinta-Antila, A.Voss, C.Wraith

Proton-neutron pairing correlations in the self-conjugate nucleus 42Sc

NUCLEAR MOMENTS 42,43,44,45,46Sc; measured frequencies; deduced hyperfine spectrum, magnetic dipole, electric quadrupole parameters, rms radii. Comparison with the shell-model and IMSRG calculations.

doi: 10.1016/j.physletb.2021.136439
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2016BA44      Phys.Lett. B 760, 387 (2016)

C.Babcock, H.Heylen, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, D.Fedorov, R.F.Garcia Ruiz, W.Geithner, W.Gins, T.Day Goodacre, L.K.Grob, M.Kowalska, S.M.Lenzi, B.Maass, S.Malbrunot-Ettenauer, B.Marsh, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, R.Rossel, S.Rothe, R.Sanchez, Y.Tsunoda, C.Wraith, L.Xie, X.F.Yang

Quadrupole moments of odd-A 53-63Mn: Onset of collectivity towards N = 40

NUCLEAR MOMENTS 53,55,57,59,61,63Mn; measured hyperfine spectra; deduced spectroscopic quadrupole moments. Comparison with large-scale shell model predictions using three effective interactions, GXPF1A, LNPS, modified A3DA.

doi: 10.1016/j.physletb.2016.07.016
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2016CA02      Prog.Part.Nucl.Phys. 86, 127 (2016)

P.Campbell, I.D.Moore, M.R.Pearson

Laser spectroscopy for nuclear structure physics

doi: 10.1016/j.ppnp.2015.09.003
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2016HE14      Phys.Rev. C 94, 054321 (2016)

H.Heylen, C.Babcock, R.Beerwerth, J.Billowes, M.L.Bissell, K.Blaum, J.Bonnard, P.Campbell, B.Cheal, T.Day Goodacre, D.Fedorov, S.Fritzsche, R.F.Garcia Ruiz, W.Geithner, Ch.Geppert, W.Gins, L.K.Grob, M.Kowalska, K.Kreim, S.M.Lenzi, I.D.Moore, B.Maass, S.Malbrunot-Ettenauer, B.Marsh, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, J.Papuga, R.Rossel, S.Rothe, R.Sanchez, Y.Tsunoda, C.Wraith, L.Xie, X.F.Yang, D.T.Yordanov

Changes in nuclear structure along the Mn isotopic chain studied via charge radii

ATOMIC PHYSICS 51,53,54,55,56,57,58,59,60,61,62,63,64Mn; measured hyperfine spectra using collinear laser spectroscopy at ISOLDE-CERN; deduced charge radii. Isotopes produced in bombardment of uranium carbide target with 1.4-GeV proton beam. Mass and field shift factors calculated in multiconfiguration Dirac-Fock framework and combined with King plot analysis. Comparison with Duflo-Zuker formula.

NUCLEAR STRUCTURE 53,55,57,59,61,63,65Mn; calculated potential energy surfaces using Monte Carlo shell-model. Systematics of S(2n) values for Z=20-28, N=24-46 nuclei.

doi: 10.1103/PhysRevC.94.054321
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2015BA49      Phys.Lett. B 750, 176 (2015)

C.Babcock, H.Heylen, J.Billowes, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, R.F.Garcia Ruiz, C.Geppert, W.Gins, M.Kowalska, K.Kreim, S.M.Lenzi, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, D.T.Yordanov

Evidence for Increased neutron and proton excitations between 51-63Mn

NUCLEAR MOMENTS 51,52,53,54,55,56,57,58,59,60,61,62,63Mn; measured hyperfine structures; deduced J, magnetic dipole moments. Comparison with large-scale shell-model calculations using different model spaces and effective interactions.

doi: 10.1016/j.physletb.2015.09.012
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2015HE10      Acta Phys.Pol. B46, 699 (2015)

H.Heylen, C.Babcock, J.Billowes, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, R.F.Garcia Ruiz, Ch.Geppert, W.Gins, K.Kreim, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, D.T.Yordanov

Collinear Laser Spectroscopy on Neutron-rich Mn Isotopes Approaching N = 40

NUCLEAR REACTIONS U(p, X)51Mn/53Mn/54Mn/55Mn/56Mn/57Mn/58Mn/59Mn/60Mn/61Mn/62Mn/63Mn/64Mn, E=1.4 GeV; measured hyperfine spectra; deduced J, g-factors, quadrupole moments.

doi: 10.5506/APhysPolB.46.699
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2015HE28      Phys.Rev. C 92, 044311 (2015)

H.Heylen, C.Babcock, J.Billowes, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, R.F.Garcia Ruiz, Ch.Geppert, W.Gins, M.Kowalska, K.Kreim, S.M.Lenzi, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, D.T.Yordanov

Spins and magnetic moments of 58, 60, 62, 64Mn ground states and isomers

NUCLEAR MOMENTS 54,56,58,60,62,64Mn; measured hyperfine spectra using laser ion source (RILIS), high-resolution separator (HRS), cooler-buncher (ISCOOL), and collinear laser spectroscopy beam line (COLLAPS) at ISOLDE-CERN; deduced levels, J, hyperfine structure parameters, magnetic dipole, moments and electric quadrupole moments for ground states and isomers. Mn beams produced in U(p, X), E=1.4 GeV reaction. Comparison with large-scale shell-model calculations using GXPF1A and LNPS effective interactions.

doi: 10.1103/PhysRevC.92.044311
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2012FL05      J.Phys.(London) G39, 125101 (2012)

K.T.Flanagan, J.Billowes, P.Campbell, B.Cheal, G.D.Dracoulis, D.H.Forest, M.D.Gardner, J.Huikari, A.Jokinen, B.A.Marsh, R.Moore, A.Nieminen, H.Penttila, H.L.Thayer, G.Tungate, J.Aysto

Nuclear moments, charge radii and spins of the ground and isomeric states in 175Yb and 177Yb

NUCLEAR MOMENTS 175,177Yb; measured hyperfine structures; deduced static moments and changes in mean-square charge radii. Collinear laser spectroscopy at the IGISOL facility, comparison with Nilsson model.

doi: 10.1088/0954-3899/39/12/125101
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2011AV01      J.Phys.(London) G38, 025104 (2011)

M.Avgoulea, Yu.P.Gangrsky, K.P.Marinova, S.G.Zemlyanoi, S.Fritzsche, D.Iablonskyi, C.Barbieri, E.C.Simpson, P.D.Stevenson, J.Billowes, P.Campbell, B.Cheal, B.Tordoff, M.L.Bissell, D.H.Forest, M.D.Gardner, G.Tungate, J.Huikari, A.Nieminen, H.Penttila, J.Aysto

Nuclear charge radii and electromagnetic moments of radioactive scandium isotopes and isomers

NUCLEAR MOMENTS 42,43,44,45,46Sc; measured hyperfine structure; deduced nuclear magnetic dipole moments and electric quadrupole moments, isotope shifts, charge radii, deformation. Shell model calculation, laser spectroscopy.

NUCLEAR STRUCTURE 42,43,44,45,46Sc, 40,41,42,43,44,45,46,47,48Ca; calculated nuclear isomer shifts, radii, magnetic moment, spectroscopic quadrupole moments. Comparison with other data.

doi: 10.1088/0954-3899/38/2/025104
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2010BA31      J.Phys.(London) G37, 105103 (2010)

K.Baczynska, J.Billowes, P.Campbell, F.C.Charlwood, B.Cheal, T.Eronen, D.H.Forest, A.Jokinen, T.Kessler, I.D.Moore, M.Ruffer, G.Tungate, J.Aysto

Nuclear spin determination of 100mY by collinear laser spectroscopy of optically pumped ions

NUCLEAR REACTIONS U(p, F)89Y/96Y/98Y/99Y/100Y, E=30 MeV; measured hyperfine resonance fluorescence spectra; deduced isotope shifts, hyperfine parameters, nuclear spin and prolate shape.

doi: 10.1088/0954-3899/37/10/105103
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2010CH15      Phys.Lett. B 690, 346 (2010)

F.C.Charlwood, J.Billowes, P.Campbell, B.Cheal, T.Eronen, D.H.Forest, S.Fritzsche, M.Honma, A.Jokinen, I.D.Moore, H.Penttila, R.Powis, A.Saastamoinen, G.Tungate, J.Aysto

Ground state properties of manganese isotopes across the N=28 shell closure

NUCLEAR REACTIONS 50,52Cr(p, n), E=14 MeV; 50Cr(d, n), E=13 MeV;55Mn(p, xnp)53Mn/54Mn, E=33 MeV; 56Fe(d, 2p), E=25 MeV; measured hyperfine spectra; deduced magnetic dipole moments, quadrupole moments, mean-square charge radii, shell closure. Comparison with shell model calculation using GXPF1A interaction.

doi: 10.1016/j.physletb.2010.05.060
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2009CH09      Phys.Lett. B 674, 23 (2009)

F.C.Charlwood, K.Baczynska, J.Billowes, P.Campbell, B.Cheal, T.Eronen, D.H.Forest, A.Jokinen, T.Kessler, I.D.Moore, H.Penttila, R.Powis, M.Ruffer, A.Saastamoinen, G.Tungate, J.Aysto

Nuclear charge radii of molybdenum fission fragments

NUCLEAR MOMENTS 90,91,92,94,95,96,97,98,100,102,103,104,105,106,108Mo; measured hfs; deduced hyperfine structure coefficients, charge radius, magnetic moment. Collinear laser spectroscopy.

doi: 10.1016/j.physletb.2009.02.050
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2009CH25      Phys.Rev.Lett. 102, 222501 (2009)

B.Cheal, K.Baczynska, J.Billowes, P.Campbell, F.C.Charlwood, T.Eronen, D.H.Forest, A.Jokinen, T.Kessler, I.D.Moore, M.Reponen, S.Rothe, M.Ruffer, A.Saastamoinen, G.Tungate, J.Aysto

Laser Spectroscopy of Niobium Fission Fragments: First Use of Optical Pumping in an Ion Beam Cooler Buncher

NUCLEAR MOMENTS 90,91,92,93,99,101,103Nb; measured collinear fluorescence spectra, hfs coefficients; deduced magnetic dipole, electric quadrupole moments, mean-square charge radii.

doi: 10.1103/PhysRevLett.102.222501
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2009MA75      Eur.Phys.J. A 42, 503 (2009)

E.Mane, J.Billowes, K.Blaum, P.Campbell, B.Cheal, P.Delahaye, K.T.Flanagan, D.H.Forest, H.Franberg, C.Geppert, T.Giles, A.Jokinen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, I.Podadera, G.Tungate, P.Vingerhoets, D.T.Yordanov

An ion cooler-buncher for high-sensitivity collinear laser spectroscopy at ISOLDE

NUCLEAR MOMENTS 46K; measured hfs. Testing of new laser spectroscopy technique.

doi: 10.1140/epja/i2009-10828-0
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2007BI14      Phys.Lett. B 645, 330 (2007)

M.L.Bissell, K.T.Flanagan, M.D.Gardner, M.Avgoulea, J.Billowes, P.Campbell, B.Cheal, T.Eronen, D.H.Forest, J.Huikari, A.Jokinen, I.D.Moore, A.Nieminen, H.Penttila, S.Rinta-Antila, B.Tordoff, G.Tungate, J.Aysto

On the decrease in charge radii of multi-quasi particle isomers

NUCLEAR MOMENTS 97mY, 176,176mYb, 178,178mHf; measured isomer shifts, μ, quadrupole moments, radii; deduced hyperfine structure coefficients. Laser spectroscopy.

doi: 10.1016/j.physletb.2006.12.054
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2007CH07      Phys.Lett. B 645, 133 (2007)

B.Cheal, M.D.Gardner, M.Avgoulea, J.Billowes, M.L.Bissell, P.Campbell, T.Eronen, K.T.Flanagan, D.H.Forest, J.Huikari, A.Jokinen, B.A.Marsh, I.D.Moore, A.Nieminen, H.Penttila, S.Rinta-Antila, B.Tordoff, G.Tungate, J.Aysto

The shape transition in the neutron-rich yttrium isotopes and isomers

NUCLEAR MOMENTS 86,87,87m,88,88m,89,89m,90,90m,92,93,93m,94,95,96,96m,97,97m,98,98m,99,100,101,102Y; measured isotope and isomer shifts, μ, quadrupole moments, radii, deformation. Laser spectroscopy.

doi: 10.1016/j.physletb.2006.12.053
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2006AV09      Hyperfine Interactions 171, 217 (2006)

M.Avgoulea, M.Mahgoub, J.Billowes, P.Campbell, A.Ezwam, D.H.Forest, M.Gardner, J.Huikari, A.Jokinen, A.Nieminen, G.Tungate, J.Aysto

Laser spectroscopy of stable Os isotopes

NUCLEAR MOMENTS 184,186,187,188,189,190,192Os; measured hfs, isotope shifts. Laser spectroscopy.

doi: 10.1007/s10751-006-9485-0
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2006BI14      Phys.Rev. C 74, 047301 (2006)

M.L.Bissell, K.Baczynska, J.Billowes, P.Campbell, B.Cheal, T.Eronen, D.H.Forest, M.D.Gardner, I.D.Moore, B.Tordoff, G.Tungate, J.Aysto

Model independent determination of the spin of the 180Ta naturally occurring isomer

NUCLEAR MOMENTS 180,181Ta; measured hfs; deduced hyperfine structure coefficients. 180mTa deduced isomeric state J. Collinear laser spectroscopy.

doi: 10.1103/PhysRevC.74.047301
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2006CA38      Hyperfine Interactions 171, 143 (2006)

P.Campbell

Optical pumping in an RF cooler buncher

NUCLEAR MOMENTS 86,87,87m,88,88m,89,89m,90,90m,92,93,93m,94,95,96,96m,97,97m,98,98m,99,100,101,102Y; measured resonance fluorescence spectra. Collinear laser spectroscopy.

doi: 10.1007/s10751-006-9491-2
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2006GA47      Hyperfine Interactions 171, 209 (2006)

Y.Gangrsky, K.Marinova, S.Zemlyanoi, M.Avgoulea, J.Billowes, P.Campbell, B.Cheal, B.Tordoff, M.Bissell, D.H.Forest, M.Gardner, G.Tungate, J.Huikari, H.Penttila, J.Aysto

Nuclear charge radii and electromagnetic moments of scandium isotopes and isomers in the f7/2 shell

NUCLEAR MOMENTS 42,43,44,44m,45,45m,46Sc; measured hfs, isotope shifts; deduced μ, quadrupole moments. Collinear laser spectroscopy.

doi: 10.1007/s10751-006-9488-x
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2006MO42      Hyperfine Interactions 171, 135 (2006)

I.D.Moore, T.Kessler, J.Aysto, J.Billowes, P.Campbell, B.Cheal, B.Tordoff, M.L.Bissel, G.Tungate

Resonance ionization spectroscopy of bismuth at the IGISOL facility

NUCLEAR MOMENTS 209Bi; measured hfs. Resonance ionization spectroscopy.

doi: 10.1007/s10751-006-9494-z
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2006NO13      Hyperfine Interactions 171, 149 (2006)

W.Nortershauser, P.Campbell, and the LaSpec Collaboration

LaSpec at FAIR'S low energy beamline: A new perspective for laser spectroscopy of radioactive nuclei

doi: 10.1007/s10751-006-9492-1
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2006TO17      Hyperfine Interactions 171, 197 (2006)

B.Tordoff, J.Billowes, P.Campbell, B.Cheal, D.H.Forest, T.Kessler, J.Lee, I.D.Moore, A.Popov, G.Tungate, J.Aysto

Investigation of the low-lying isomer in 229Th by collinear laser spectroscopy

doi: 10.1007/s10751-006-9487-y
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2005MO35      J.Phys.(London) G31, S1499 (2005)

I.D.Moore, A.Nieminen, J.Billowes, P.Campbell, Ch.Geppert, A.Jokinen, T.Kessler, B.Marsh, H.Penttila, S.Rinta-Antila, B.Tordoff, K.D.A.Wendt, J.Aysto

Development of a laser ion source at IGISOL

doi: 10.1088/0954-3899/31/10/020
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2005PE22      Eur.Phys.J. A 25, Supplement 1, 745 (2005)

H.Penttila, J.Billowes, P.Campbell, P.Dendooven, V.-V.Elomaa, T.Eronen, U.Hager, J.Hakala, J.Huikari, A.Jokinen, A.Kankainen, P.Karvonen, S.Kopecky, B.Marsh, I.Moore, A.Nieminen, A.Popov, S.Rinta-Antila, Y.Wang, J.Aysto

Performance of IGISOL 3

doi: 10.1140/epjad/i2005-06-141-x
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2004GA34      J.Phys.(London) G30, 1089 (2004)

Yu.P.Gangrsky, K.P.Marinova, S.G.Zemlyanoi, I.D.Moore, J.Billowes, P.Campbell, K.T.Flanagan, D.H.Forest, J.A.R.Griffith, J.Huikari, R.Moore, A.Nieminen, H.Thayer, G.Tungate, J.Aysto

Nuclear charge radii of neutron deficient titanium isotopes 44Ti and 45Ti

NUCLEAR MOMENTS 44,45,46,47,48,49,50Ti; measured hfs, isotope shifts; deduced charge radii. Collinear laser spectroscopy.

doi: 10.1088/0954-3899/30/9/009
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2003CH60      J.Phys.(London) G29, 2479 (2003)

B.Cheal, M.Avgoulea, J.Billowes, P.Campbell, K.T.Flanagan, D.H.Forest, M.D.Gardner, J.Huikari, B.A.Marsh, A.Nieminen, H.L.Thayer, G.Tungate, J.Aysto

Collinear laser spectroscopy of neutron-rich cerium isotopes near the N = 88 shape transition

NUCLEAR MOMENTS 144,146,148Ce; measured isotope shifts; deduced relative charge radii. Collinear laser spectroscopy.

doi: 10.1088/0954-3899/29/11/003
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2003TH03      J.Phys.(London) G29, 2247 (2003)

H.L.Thayer, J.Billowes, P.Campbell, P.Dendooven, K.T.Flanagan, D.H.Forest, J.A.R.Griffith, J.Huikari, A.Jokinen, R.Moore, A.Nieminen, G.Tungate, S.Zemlyanoi, J.Aysto

Collinear laser spectroscopy of radioisotopes of zirconium

NUCLEAR MOMENTS 87,87m,88,89,89m,91,92,94,96,97,98,99,100,101,102Zr; measured hfs, isotope shifts; deduced μ, quadrupole moments, radii. Collinear laser spectroscopy.

doi: 10.1088/0954-3899/29/9/318
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2002CA37      Phys.Rev.Lett. 89, 082501 (2002)

P.Campbell, H.L.Thayer, J.Billowes, P.Dendooven, K.T.Flanagan, D.H.Forest, J.A.R.Griffith, J.Huikari, A.Jokinen, R.Moore, A.Nieminen, G.Tungate, S.Zemlyanoi, J.Aysto

Laser Spectroscopy of Cooled Zirconium Fission Fragments

NUCLEAR MOMENTS 97,99,101Zr; measured hfs, μ, quadrupole moments. 96,97,98,99,100,101,102Zr; measured isotope shifts, radii. On-line laser spectroscopy.

doi: 10.1103/PhysRevLett.89.082501
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2002CA47      Eur.Phys.J. A 15, 45 (2002)

P.Campbell, A.Nieminen, J.Billowes, P.Dendooven, K.T.Flanagan, D.H.Forest, Yu.P.Gangrsky, J.A.R.Griffith, J.Huikari, A.Jokinen, I.D.Moore, R.Moore, H.L.Thayer, G.Tungate, S.G.Zemlyanoi, J.Aysto

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

NUCLEAR MOMENTS 44,45,46,48,49,50Ti, 87,88,89Zr, 170,171,172,173,174,175,176,177,178,179,180Hf; measured hfs, charge radii. Ion-beam cooler, laser spectroscopy.

doi: 10.1140/epja/i2001-10223-y
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2002FO12      J.Phys.(London) G28, L63 (2002)

D.H.Forest, J.Billowes, P.Campbell, P.Dendooven, K.T.Flanagan, J.A.R.Griffith, J.Huikari, A.Jokinen, R.Moore, A.Nieminen, H.L.Thayer, G.Tungate, S.Zemlyanoi, J.Aysto

Laser spectroscopy of neutron deficient zirconium isotopes

NUCLEAR MOMENTS 87,87m,88,89,89mZr; measured hfs; deduced radii, μ, quadrupole moments, ground-state J. Collinear laser spectroscopy, cooled and bunched ion beams.

doi: 10.1088/0954-3899/28/12/101
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2002MO31      Phys.Lett. 547B, 200 (2002)

R.Moore, A.M.Bruce, P.Dendooven, J.Billowes, P.Campbell, A.Ezwam, K.T.Flanagan, D.H.Forest, J.Huikari, A.Jokinen, A.Nieminen, H.L.Thayer, G.Tungate, S.Zemlyanoi, J.Aysto

Character of an 8- isomer of 130Ba

RADIOACTIVITY 130mBa(IT) [from 133Cs(d, 5n)]; measured Eγ, Iγ, T1/2.

NUCLEAR MOMENTS 130mBa; measured μ, static quadrupole moment, isomer shift. 130Ba levels deduced configurations, deformation. Collinear laser spectroscopy.

doi: 10.1016/S0370-2693(02)02784-3
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2002NI12      Phys.Rev.Lett. 88, 094801 (2002)

A.Nieminen, P.Campbell, J.Billowes, D.H.Forest, J.A.R.Griffith, J.Huikari, A.Jokinen, I.D.Moore, R.Moore, G.Tungate, J.Aysto

On-Line Cooling and Bunching for Collinear Laser Spectroscopy

NUCLEAR MOMENTS 175Hf; measured hfs; deduced μ, quadrupole moment, charge radius. Collinear laser spectroscopy.

doi: 10.1103/PhysRevLett.88.094801
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2000BI23      Hyperfine Interactions 129, 289 (2000)

J.Billowes, P.Campbell

Laser spectroscopy of the bismuth isotopes

NUCLEAR MOMENTS 202,203,204,205,206,207,208,209,210,210m,212,213Bi; measured isotope shifts, hfs using atomic beam spectroscopy; deduced quadrupole moments, μ.

doi: 10.1023/A:1012674119442
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2000CA54      Hyperfine Interactions 127, 83 (2000)

P.Campbell, J.Billowes, E.C.A.Cochrane, P.Dendooven, D.E.Evans, J.A.R.Griffith, J.Huikari, A.Jokinen, I.D.Moore, A.Nieminen, K.Perajarvi, G.Tungate, G.Yeandle, J.Aysto

Progress of laser spectroscopy at the IGISOL

doi: 10.1023/A:1012654509080
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2000PE30      J.Phys.(London) G26, 1829 (2000)

M.R.Pearson, P.Campbell, K.Leerungnavarat, J.Billowes, I.S.Grant, M.Keim, J.Kilgallon, I.D.Moore, R.Neugart, M.Neuroth, S.Wilbert, and the ISOLDE Collaboration

Nuclear Moments and Charge Radii of Bismuth Isotopes

NUCLEAR MOMENTS 205,206,207,208,209,210,212,213Bi; measure hfs, isotope shifts; deduced μ, quadrupole moment. Comparison with Hg, Tl, Pb and Po isotopes and with Shell model calculations.

doi: 10.1088/0954-3899/26/12/307
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2000YE02      J.Phys.(London) G26, 839 (2000); Corrigendum J.Phys.(London) G26, 1299 (2000)

G.Yeandle, J.Billowes, P.Campbell, E.C.A.Cochrane, P.Dendooven, D.E.Evans, D.H.Forest, J.A.R.Griffith, J.Huikari, A.Jokinen, I.D.Moore, A.Nieminen, K.Perajarvi, G.Tungate, J.Aysto

Nuclear Moments and Charge Radii of the 171Hf Ground State and Isomer

NUCLEAR MOMENTS 171Hf; measured isotope shift, μ, electric quadrupole moment, charge radii for ground state and isomer. On-line laser spectroscopy.

doi: 10.1088/0954-3899/26/6/307
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2000YE03      Hyperfine Interactions 127, 91 (2000)

G.Yeandle, J.Billowes, P.Campbell, P.Dendooven, K.Perajarvi, M.D.Seliverstov, G.Tungate, J.Aysto

Resonance ionization spectroscopy of radioisotopes at the IGISOL facility, JYFL

doi: 10.1023/A:1012606625918
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1999LE11      Phys.Rev.Lett. 82, 2476 (1999)

J.M.G.Levins, D.M.Benton, J.Billowes, P.Campbell, T.G.Cooper, P.Dendooven, D.E.Evans, D.H.Forest, I.S.Grant, J.A.R.Griffith, J.Huikari, A.Jokinen, K.Perajarvi, G.Tungate, G.Yeandle, J.Aysto

First On-Line Laser Spectroscopy of Radioisotopes of a Refractory Element

NUCLEAR MOMENTS 170,172,173,174,176,177,179,180Hf; measured isotope shifts, mean-square charge radii; deduced deformation. On-line laser spectroscopy.

doi: 10.1103/PhysRevLett.82.2476
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1997CA39      J.Phys.(London) G23, 1141 (1997)

P.Campbell, J.Billowes, E.C.A.Cochrane, J.L.Cooke, T.G.Cooper, P.Dendooven, D.E.Evans, I.S.Grant, J.A.R.Griffith, A.Honkanen, M.Huhta, M.Oinonen, M.R.Pearson, H.Penttila, J.R.Persson, D.S.Richardson, G.Tungate, P.D.Wheeler, L.Zybert, J.Aysto

A Thirty Second Isomer in 171Hf

NUCLEAR REACTIONS 170Yb(α, 3n), E=50 MeV; measured Iγ(t). 171mHf deduced T1/2. Ion guide online isotope seperator.

RADIOACTIVITY 171mHf(IT) [from 170Yb(α, 3n), E=50 MeV]; measured Iγ(t); deduced T1/2. Ion guide online isotope seperator.

doi: 10.1088/0954-3899/23/9/014
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1997CA53      J.Phys.(London) B30, 2351 (1997)

P.Campbell, J.Billowes, I.S.Grant

The Specific Mass Shift of the Zinc Atomic Ground State

NUCLEAR MOMENTS Zn; measured resonance lines isotope shifts; deduced core-valence correlations.

ATOMIC PHYSICS Zn; measured resonance lines isotope shifts; deduced core-valence correlations.

doi: 10.1088/0953-4075/30/10/010
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1997CO26      J.Phys.(London) G23, L97 (1997)

J.L.Cooke, J.Billowes, P.Campbell, E.C.A.Cochrane, T.G.Cooper, P.Dendooven, D.E.Evans, J.A.R.Griffith, I.S.Grant, A.Honkanen, M.Huhta, J.M.G.Levins, M.Oinonen, M.R.Pearson, H.Penttila, J.A.Persson, D.S.Richardson, G.Tungate, P.D.Wheeler, L.Zybert, J.Aysto

First Measurement of Radioisotopes by Collinear Laser Spectroscopy at an Ion-Guide Separator

NUCLEAR REACTIONS 238U(p, F), E=25 MeV; measured 112Rh yield vs electrode voltage, beam current. Molecular beam, ion-guide isotope separator, ion-photon coincidence.

RADIOACTIVITY 140,142,144Ba [from 238U(p, F), E=25 MeV]; measured optical isotope shifts. Ion-guide isotope separator, collinear laser spectroscopy, ion-photon coincidence.

doi: 10.1088/0954-3899/23/11/002
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1997LE19      J.Phys.(London) G23, 1145 (1997)

J.M.G.Levins, J.Billowes, P.Campbell, M.R.Pearson

The Quadrupole Moment of 26Al

NUCLEAR MOMENTS 26Al; measured isotope shifts, hfs; deduced quadrupole moment. Atomic beam laser spectroscopy. Shell model comparison.

doi: 10.1088/0954-3899/23/9/015
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1997LH01      Z.Phys. A358, 317 (1997)

G.Lhersonneau, B.Pfeiffer, J.R.Persson, J.Suhonen, J.Toivanen, P.Campbell, P.Dendooven, A.Honkanen, M.Huhta, P.M.Jones, R.Julin, S.Juutinen, M.Oinonen, H.Penttila, K.Perajarvi, A.Savelius, W.Jicheng, J.C.Wang, J.Aysto

Detailed Investigation of the β-Decay of the (9/2)+ Ground State of 99Nb to Levels in 99Mo

RADIOACTIVITY 99Nb(β-) [from U(p, F), E=25 MeV]; measured Eγ, Iγ, γγ-, βγ-, γ(X-ray)-coin. 99Zr(β-) [from U(pp, F), E=25 MeV]; measured βγ-coin. 99Mo deduced levels, J, π. Quasiparticle RPA calculations, N=57 isotones level systematics.

doi: 10.1007/s002180050335
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1996CA02      Nucl.Phys. A598, 61 (1996)

P.Campbell, J.A.Behr, J.Billowes, G.Gwinner, G.D.Sprouse, F.Xu

Magnetic Dipole and Electric Quadrupole Moments of the Neutron-Deficient Bismuth Isotopes

RADIOACTIVITY 202,203,204Bi(EC); measured hfs; deduced hyperfine coupling constants, μ, quadrupole moments, trends around 208Pb. Gas cell spectroscopy, Bi-Ar system.

doi: 10.1016/0375-9474(95)00462-9
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1996CO04      J.Phys.(London) G22, 99 (1996)

T.G.Cooper, J.Billowes, P.Campbell, M.R.Pearson

The Nuclear Magnetic Moment of 26Al by Atomic Beam Laser Spectroscopy

RADIOACTIVITY 26Al(β+), (EC); measured hfs; deduced μ. Atomic beam laser spectroscopy. Model comparison.

doi: 10.1088/0954-3899/22/1/008
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1995BI10      J.Phys.(London) G21, 707 (1995)

J.Billowes, P.Campbell

High-Resolution Laser Spectroscopy for the Study of Nuclear Sizes and Shapes

doi: 10.1088/0954-3899/21/6/003
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1995CA11      Phys.Lett. 346B, 21 (1995)

P.Campbell, J.Billowes, J.A.Behr, G.Gwinner, G.D.Sprouse, F.Xu

Isotope Shifts of the Neutron-Deficient Bismuth Isotopes: Charge radii systematics across the Z = 82 shell closure

RADIOACTIVITY 202,203Bi(EC), (β+); 204Bi(EC) [from 197Au(11B, xn), E=86 MeV]; measured isotope shifts; deduced hyperfine coupling constants, King plots. 202,203,204,205,206,208Bi deduced mean square charge radii. King plots for Tl, Po isotopes included, other data input. Laser spectroscopy, sensitive gas cell technique.

doi: 10.1016/0370-2693(95)00014-C
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1992JO01      Phys.Lett. 278B, 419 (1992)

M.K.Jones, B.G.Ritchie, C.L.Morris, R.D.Ransome, J.A.McGill, D.L.Watson, C.F.Moore, D.Clayton, K.Pujara, I.Brown, P.Campbell

Energy Dependence of the Total 12C(π+, 2p) Cross Section

NUCLEAR REACTIONS 12C(π+, 2p), E=19-140 MeV; measured absorption σ(E); deduced energy dependence. Large solid angle bismuth germanate multi-element detection system.

doi: 10.1016/0370-2693(92)90578-R
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1992RA11      Phys.Rev. C46, 273 (1992)

R.D.Ransome, C.L.Morris, M.K.Jones, B.G.Ritchie, D.L.Watson, J.A.McGill, K.Pujara, D.B.Clayton, I.Brown, P.Campbell, C.F.Moore

Pion Absorption in Light Nuclei

NUCLEAR REACTIONS 6,7Li, 9Be, 10,11B, 12,13C(π+, 2p), (π+, 3p), E=50-180 MeV; measured missing mass spectra; deduced σ(E), pion absorption mechanism.

doi: 10.1103/PhysRevC.46.273
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