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NSR database version of April 25, 2024.

Search: Author = J.C.Bale

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2020LE06      J.Phys.(London) G47, 045113 (2020)

E.Leistenschneider, R.Klawitter, A.Lennarz, M.Alanssari, J.C.Bale, B.R.Barquest, U.Chowdhury, A.Finlay, A.T.Gallant, B.Kootte, D.Lascar, K.G.Leach, A.J.Mayer, D.Short, C.Andreoiu, G.Gwinner, M.E.Wieser, J.Dilling, A.A.Kwiatkowski

Diversifying beam species through decay and recapture ion trapping: a demonstrative experiment at TITAN-EBIT

RADIOACTIVITY ³⁰Mg, ³⁰Al(β^-) [from U(p, X), E=480 MeV]; measured decay products, Eγ, Iγ; deduced γ-ray energies, population and charge-state evolutions and in-trap decay at TITAN-EBIT, identification of daughter species. TRIUMF's ISOL facility, the isotope separator and accelerator (ISAC).

ATOMIC MASSES ³⁰Mg, ³⁰Al; measured ToF-ICR resonance frequencies; deduced atomic mass excesses. Comparison with available data.

doi: 10.1088/1361-6471/ab6ee1
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2017GA20      Phys.Rev. C 96, 024325 (2017)

A.T.Gallant, M.Alanssari, J.C.Bale, C.Andreoiu, B.R.Barquest, U.Chowdhury, J.Even, A.Finlay, D.Frekers, G.Gwinner, R.Klawitter, B.Kootte, A.A.Kwiatkowski, D.Lascar, K.G.Leach, E.Leistenschneider, A.Lennarz, A.J.Mayer, D.Short, R.Thompson, M.Wieser, D.Lunney, J.Dilling

Mass determination near N=20 for Al and Na isotopes

ATOMIC MASSES ^31,32Na, ^29,34,35Al; measured cyclotron frequencies and mass excesses by time-of-flight ion-cyclotron-resonance (TOF-ICR) technique using the TITAN Penning trap mass spectrometer at ISAC-TRIUMF; deduced S(2n). Radioactive isotopes produced via the isotope separator on-line (ISOL) technique by a 480-MeV proton beam impinging on a UC_x target, followed by the separation of sodium isotopes by surface ionization, and aluminum isotopes by the TRIUMF Resonant Ionization Laser Ion Source (TRILIS). Comparison with previous experimental values and mass evaluations. Systematics of S(2n) values for N=18-25 Na, Mg, and Al isotopic chains.

doi: 10.1103/PhysRevC.96.024325
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2015KW01      Phys.Rev. C 92, 061301 (2015)

A.A.Kwiatkowski, C.Andreoiu, J.C.Bale, A.Chaudhuri, U.Chowdhury, S.Malbrunot-Ettenauer, A.T.Gallant, A.Grossheim, G.Gwinner, A.Lennarz, T.D.Macdonald, T.J.M.Rauch, B.E.Schultz, S.Seeraji, M.C.Simon, V.V.Simon, D.Lunney, A.Poves, J.Dilling

Observation of a crossover of S_2n in the island of inversion from precision mass spectrometry

ATOMIC MASSES ^{27,29,30,31,32,33,34}Al; measured TOF-ICR resonance, mass excess using Ion Trap for Atomic and Nuclear science (TITAN) Penning-trap facility at TRIUMF. Comparison with AME-2012, and previous experimental values. Systematics of S(2n) values for ^{28,29,30,31,32,33,34,35,36,37}Mg, ^{29,30,31,32,33,34,35,36,37,38}Al, comparison of experimental and theoretical values; deduced crossover at N=21 in the island of inversion. Large-scale shell-model calculations.

doi: 10.1103/PhysRevC.92.061301
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2014KW01      Hyperfine Interactions 225, 143 (2014)

A.A.Kwiatkowski, C.Andreoiu, J.C.Bale, T.Brunner, A.Chaudhuri, U.Chowdhury, P.Delheij, S.Ettenauer, D.Frekers, A.T.Gallant, A.Grossheim, G.Gwinner, F.Jang, A.Lennarz, T.Ma, E.Mane, M.R.Pearson, B.E.Schultz, M.C.Simon, V.V.Simon, J.Dilling

TITAN: An ion trap facility for on-line mass measurement experiments

doi: 10.1007/s10751-013-0892-8
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2014MA21      Phys.Rev. C 89, 044318 (2014)

T.D.Macdonald, B.E.Schultz, J.C.Bale, A.Chaudhuri, U.Chowdhury, D.Frekers, A.T.Gallant, A.Grossheim, A.A.Kwiatkowski, A.Lennarz, M.C.Simon, V.V.Simon, J.Dilling

Precision Penning-trap measurement to investigate the role of the⁵¹Cr (e^-, ν_e) ⁵¹V Q value in the gallium anomaly

ATOMIC MASSES ⁵¹Cr, ⁵¹V; measured cyclotron-frequencies, TOF-ICR resonances using TITAN system consisting of radio frequency quadrupole (RFQ) beam cooler and buncher, an electron beam ion trap (EBIT), and a Penning trap (MPET) at ISAC-TRIUMF facility; deduced Q value for EC decay of ⁵¹Cr. Comparison with AME-2012 evaluation. Relevance to solar neutrino experiments SAGE and GALLEX.

RADIOACTIVITY ⁵¹Cr(EC); measured precise Q(EC) value using TITAN system for precise mass measurements at ISAC-TRIUMF facility.

doi: 10.1103/PhysRevC.89.044318
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2013FR13      Phys.Lett. B 722, 233 (2013)

D.Frekers, M.C.Simon, C.Andreoiu, J.C.Bale, M.Brodeur, T.Brunner, A.Chaudhuri, U.Chowdhury, J.R.C.Lopez-Urrutia, P.Delheij, H.Ejiri, S.Ettenauer, A.T.Gallant, V.Gavrin, A.Grossheim, M.N.Harakeh, F.Jang, A.A.Kwiatkowski, J.Lassen, A.Lennarz, M.Luichtl, T.Ma, T.D.Macdonald, E.Mane, D.Robertson, B.E.Schultz, V.V.Simon, A.Teigelhofer, J.Dilling

Penning-trap Q-value determination of the ⁷¹Ga(ν, e^-)⁷¹Ge reaction using threshold charge breeding of on-line produced isotopes

ATOMIC MASSES ⁷¹Ga, ⁷¹Ge; measured TOF, TOF-ICR, ion cyclotron resonance spectra; deduced Q-value and its uncertainty. TITAN Penning trap at ISAC/TRIUMF, comparison with AME data.

doi: 10.1016/j.physletb.2013.04.019
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2012GA29      Phys.Rev.Lett. 109, 032506 (2012)

A.T.Gallant, J.C.Bale, T.Brunner, U.Chowdhury, S.Ettenauer, A.Lennarz, D.Robertson, V.V.Simon, A.Chaudhuri, J.D.Holt, A.A.Kwiatkowski, E.Mane, J.Menendez, B.E.Schultz, M.C.Simon, C.Andreoiu, P.Delheij, M.R.Pearson, H.Savajols, A.Schwenk, J.Dilling

New Precision Mass Measurements of Neutron-Rich Calcium and Potassium Isotopes and Three-Nucleon Forces

ATOMIC MASSES ^51,52Ca, ⁵¹K; measured TOF-ICR resonances, average frequency ratios; deduced masses. Comparison with available data. TRIUMF TITAN trap, comparison with available data, KB3G and GXPF1A effective interactions.

doi: 10.1103/PhysRevLett.109.032506
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