Home Penning Traps Research CHIP-TRAP Useful Links Publications Contact Info Positions Nuclear Decay Game Interactive Nuclear Chart
2023 Measurements and computational analysis of the natural decay of 176Lu F. G. A. Quarati, G. Bollen, P. Dorenbos, M. Eibach, K. Gulyuz, A. Hamaker, C. Izzo, D. K. Keblbeck, X. Mougeot, D. Puentes, M. Redshaw, R. Ringle, R. Sandler, J. Surbrook, and I. Yandow Physical Review C 107, 024313 (2023) Precise Q value determinations for forbidden and low energy beta-decays using Penning trap mass spectrometry M. Redshaw European Physical Journal A 59, 18 (2023) Updated evaluation of potential ultralow Q value beta-decays D. K. Keblbeck, R. Bhandari, N. D. Gamage, M. Horana Gamage, K. G. Leach, X. Mougeot, and M. Redshaw Physical Review C 107, 015504 (2023) 2022 Design and simulations for a Penning Ion Trap Source for the CHIP-TRAP Mass Spectrometer M. Horana Gamage, R. Bhandari, N. D. Gamage, D. Keblbeck, M. Redshaw Journal of Physics: Conference Series 2244, 012087 (2022) High-precision mass measurement of Si 24 and a refind determination of the rp process at the A = 22 waiting point D. Puentes, Z. Meisel, G. Bollen, A. Hamaker, C. Langer, E. Leistenschneider, C. Nicoloff, W. J. Ong, M. Redshaw, R. Ringle, C. S. Sumithrarachchi, J. Surbrook, A. A. Valverde, I. T. Yandow Physical Review C 106, 1 (2022) Improved nuclear physics near A=61 refines urca neutrino luminosities in accreted neutron star crusts Z. Meisel, A. Hamaker, G. Bollen, B. A. Brown, M. Eibach, K. Gulyuz, C. Izzo, C. Langer, F. Montes, W. J. Ong, D. Puentes, M. Redshaw, R. Ringle, R. Sandler, H. Schatz, S. Schwarz, C. S. Sumithrarachchi, A. A. Valverde, I. T. Yandow Physical Review C 105, 2 (2022) Investigation of Ho ion production with a laser ablation ion source R. Bhandari, M. Horana Gamage, N. D. Gamage, M. Redshaw Journal of Physics: Conference Series 2244, 012076 (2022) Identification of potential ultralow-Q-value electron capture decay branch in 75Se via a precise Penning trap measurement of the mass of 75As M. Horana Gamage, R. Bhandari, G. Bollen, N. D. Gamage, A. Hamaker, D. Puentes, M. Redshaw, R. Ringle, S. Schwarz, C.S. Sumithrarachchi, and I. Yandow Physical Review C 106, 065503 (2022) Precise Q-value measurements of 112,113Ag and 115Cd with the Canadian Penning trap for evaluation of potential ultralow Q-value beta-decays N. D. Gamage, R. Sandler, F. Buchinger, J. A. Clark, D. Ray, R. Orford, W. S. Porter, M. Redshaw, G. Savard, K. S. Sharma, and A. A. Valverde Physical Review C 106, 045503 (2022) Investigating nuclear structure near N=32 and N=34: Precision mass measurements of neutron-rich Ca, Ti, and V isotopes W. S. Porter, E. Dunling, E. Leistenschneider, J. Bergmann, G. Bollen, T. Dickel, K. A. Dietrich, A. Hamaker, Z. Hockenbery, C. Izzo, A. Jacobs, A. Javaji, B. Kootte, Y. Lan, I. Miskun, I. Mukul, T. Murböck, S. F. Paul, W. R. Plaß, D. Puentes, M. Redshaw, M. P. Reiter, R. Ringle, J. Ringuette, R. Sandler, C. Scheidenberger, R. Silwal, R. Simpson, C. S. Sumithrarachchi, A. Teigelhöfer, A. A. Valverde, R. Weil, I. T. Yandow, J. Dilling, and A. A. Kwiatkowski Physical Review C 106, 024312 (2022) 2021 A technique for the study of (p,n) reactions with unstable isotopes at energies relevant to astrophysics P. Gastis, G. Perdikakis, G. P.A. Berg, A. C. Dombos, A. Estrade, A. Falduto, M. Horoi, S. N. Liddick, S. Lipschutz, S. Lyons, F. Montes, A. Palmisano, J. Pereira, J. S. Randhawa, T. Redpath, M. Redshaw, J. Schmitt, J. R. Sheehan, M. K. Smith, P. Tsintari, A. C.C. Villari, K. Wang, R. G.T. Zegers Nuclear Instruments and Methods in Physics Research Section: A 985, 164603 (2021) First Penning trap mass measurement of Ca 36 J. Surbrook, G. Bollen, M. Brodeur, A. Hamaker, D. Pérez-Loureiro, D. Puentes, C. Nicoloff, M. Redshaw, R. Ringle, S. Schwarz, C. S. Sumithrarachchi, L. J. Sun, A. A. Valverde, A. C.C. Villari, C. Wrede, I. T. Yandow Physical Review C 103, 1 (2021) Precision Mass Measurements of Neutron-Rich Scandium Isotopes Refine the Evolution of N=32 and N=34 Shell Closures E. Leistenschneider, E. Dunling, G. Bollen, B. A. Brown, J. Dilling, A. Hamaker, J. D. Holt, A. Jacobs, A. A. Kwiatkowski, T. Miyagi, W. S. Porter, D. Puentes, M. Redshaw, M. P. Reiter, R. Ringle, R. Sandler, C. S. Sumithrarachchi, A. A. Valverde, and I.T. Yandow (The LEBIT Collaboration and the TITAN Collaboration) Physical Review Letters 126, 4 (2021) 2020 High-precision mass measurements of the isomeric and ground states of 44V: Improving constraints on the isobaric multiplet mass equation parameters of the A = 44, 0+ quintet. D. Puentes, G. Bollen, M. Brodeur, M. Eibach, K. Gulyuz, A. Hamaker, C. Izzo, S. M. Lenzi, M. MacCormick, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, P. Schury, N. A. Smirnova, J. Surbrook, A. A. Valverde, A. C. C. Villari, and I. T. Yandow Physical Review C 101, 6 (2020) 2019 SIPT – An ultrasensitive mass spectrometer for rare isotopes A. Hamaker, G. Bollen, M. Eibach, C. Izzo, D. Puentes, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, and I.T. Yandow Hyperfine Interactions 240, 34 (2019). Identification and investigation of possible ultra-low Q value β decay candidates N.D. Gamage, R. Bhandari, M. Horana Gamage, R. Sandler, M. Redshaw Hyperfine Interactions 240, 43 (2019). Precision mass measurements of 44V and 44mV for nucleon-nucleon interaction studies J. Surbrook, M. MacCormick, G. Bollen, M. Eibach, K. Gulyuz, A. Hamaker, C. Izzo, S. M. Lenzi, D. Puentes, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, P. Schury, N. Smirnova, C. S. Sumithrarachchi, A. A. Valverde, A. C. C. Villari, and I. T. Yandow Hyperfine Interactions 240, 65 (2019). Design and characterization of ion sources for CHIP-TRAP M. Horana Gamage, A.L. Arnold, R. Bhandari, N.D. Gamage, Z. Purcell, R. Sandler, M. Redshaw Hyperfine Interactions 240, 93 (2019). Direct determination of the 138La β-decay Q value using Penning trap mass spectrometry R. Sandler, G. Bollen, J. Dissanayake, M. Eibach, K. Gulyuz, A. Hamaker, C. Izzo, X. Mougeot, D. Puentes, F.G.A Quarati, M. Redshaw, R. Ringle, and I.T. Yandow. Physical Review C 100, 014308 (2019). Investigation of potential ultra-low Q-value β-decay candidates 89Sr and 139Ba using Penning trap mass spectrometry R. Sandler, G. Bollen, N.D. Gamage, A. Hamaker, C. Izzo, D. Puentes, M. Redshaw, R. Ringle, and I.T. Yandow. Physical Review C 100, 024309 (2019). 2018 Precision mass measurements of neutron-rich Co isotopes beyond N = 40 C. Izzo, G. Bollen, M. Brodeur, M. Eibach, K. Gulyuz, J. D. Holt, J. M. Kelly, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, S. R. Stroberg, C. S. Sumithrarachchi, A. A. Valverde, and A. C. C. Villari Physical Review C 97, 014309 (2018). High-Precision Mass Measurement of 56Cu and the Redirection of the rp-Process Flow A.A. Valverde, M. Brodeur, G. Bollen, M. Eibach, K. Gulyuz, A. Hamaker, C. Izzo, W.-J. Ong, D. Puentes, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, C. S. Sumithrarachchi, J. Surbrook, A.C.C. Villari, and I.T. Yandow. Physical Review Letters 120, 032701 (2018). Mass Measurement of 51Fe for the determination of the 51Fe(p,γ)52Co reaction rate W.-J. Ong, A.A. Valverde, M. Brodeur, G. Bollen, M. Eibach, K. Gulyuz, A. Hamaker, C. Izzo, D. Puentes, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, C. S. Sumithrarachchi, J. Surbrook, A. C. C. Villari, and I. T. Yandow. Physical Review C 98, 065803 (2018). 2017 β-decay Q values among the A = 50 Ti-V-Cr isobaric triplet and atomic masses of 46,47,49,50Ti, 50,51V, and 50,52-54Cr R.M.E.B. Kandegedara, G. Bollen, M. Eibach, N.D. Gamage, K. Gulyuz, C. Izzo, M. Redshaw, R. Ringle, R. Sandler, and A.A. Valverde Physical Review C 96, 044321 (2017). 2016 A laser ablation source for offline ion production at LEBIT C. Izzo, G. Bollen, S. Bustabad, M. Eibach, K. Gulyuz, D.J. Morrissey, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, and A.A. Valverde Nuclear Instruments and Methods in Physics Research B 376, 60 (2016). Status and outlook of CHIP-TRAP: The Central Michigan University high precision Penning Trap M. Redshaw, R.A. Bryce, P. Hawks, N.D. Gamage, C. Hunt, R.M.E.B. Kandegedara, I.S. Ratnayake, and L. Sharp Nuclear Instruments and Methods in Physics Research B 376, 302 (2016). High Precision Determination of the β-decay QEC Value of 11C and Implications on the Tests of the Standard Model K. Gulyuz, G. Bollen, M. Brodeur, R.A. Bryce, K. Cooper, M. Eibach, C. Izzo, E. Kwan, K. Manukyan, D.J. Morrissey, O. Naviliat-Cuncic, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, C.S. Sumithrarachchi, A.A. Valverde, and A.C.C. Villari Physical Review Letters 116, 012501 (2016). Double resonant enhancement in the neutrinoless double-electron capture of 190Pt M. Eibach, G. Bollen, K. Gulyuz, C. Izzo, M. Redshaw, R. Ringle, R. Sandler, and A.A. Valverde Physical Review C 94, 015502 (2016). Electrochemical Etching and Characterization of Sharp Field Emission Points for Electron Impact Ionization T.L. Van Well, M. Redshaw, N.D. Gamage, R.M.E.B. Kandegedara Journal of Visualized Experiments 113, e54030 (2016). Precise determination of the 113Cd fourth-forbidden non-unique β-decay Q value N.D. Gamage, G. Bollen, M. Eibach, K. Gulyuz, C. Izzo, R.M.E.B. Kandegedara, M. Redshaw, R. Ringle, R. Sandler, and A.A. Valverde Physical Review C 94, 025505 (2016). 2015 Development of a high-precision Penning trap magnetometer for the LEBIT facility D.L. Lincoln, R. Baker, A.L. Benjamin, G. Bollen, M. Redshaw, R. Ringle, S. Schwarz, A. Sonea, and A.A. Valverde International Journal of Mass Spectrometry 379, 1 (2015). Isobaric beam purification for high precision Penning trap mass spectrometry of rare isotope beams with SWIFT A.A. Kwiatkowski, G. Bollen, M. Redshaw, R. Ringle, and S. Schwarz International Journal of Mass Spectrometry 379, 9 (2015). Fabrication and Characterization of Field Emission Points for Ion Production in Penning Trap Applications M. Redshaw, A.L. Benjamin, G. Bollen, R. Ferrer, D.L. Lincoln, R. Ringle, S. Schwarz, and A.A. Valverde International Journal of Mass Spectrometry 379, 187 (2015). Determination of the direct double-β-decay Q value of 96Zr and atomic masses of 90-92,94,96Zr and 92,94-98,100Mo. K. Gulyuz, J. Ariche, G. Bollen, S. Bustabad, M. Eibach, C. Izzo, S.J. Novario, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, and A.A. Valverde Physical Review C 91, 055501 (2015). First Direct Determination of the Superallowed β-Decay QEC Value for 14O A.A. Valverde, G. Bollen, M. Brodeur, R.A. Bryce, K. Cooper, M. Eibach, K. Gulyuz, C. Izzo, D.J. Morrissey, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, C.S. Sumithrarachchi, and A.C.C. Villari Physical Review Letters 114, 232502 (2015). Determination of the QEC values of the T = ½ mirror nuclei 21Na and 29P at LEBIT M. Eibach, G. Bollen, M. Brodeur, K. Cooper, K. Gulyuz, C. Izzo, D.J. Morrissey, M. Redshaw, R. Ringle, R. Sandler, S. Schwarz, C.S. Sumithrarachchi, A.A. Valverde, and A.C.C. Villari Physical Review C 92, 045502 (2015). 2014 2013 First Direct Double-Beta Decay Q-value Measurement of 82Se in Support of Understanding the Nature of the Neutrino D.L. Lincoln, J.D. Holt, G. Bollen, M. Brodeur, S. Bustabad, J. Engel, S.J. Novario, M. Redshaw, R. Ringle, and S. Schwarz Physical Review Letters 110, 012501 (2013). First Direct Determination of the 48Ca double-β-decay Q-value S. Bustabad, G. Bollen, M. Brodeur, D.L. Lincoln, S.J. Novario, M. Redshaw, R. Ringle, S. Schwarz, and A.A. Valverde Physical Review C (Rapid Communication) 88, 022501(R) (2013). Examination of the Possible Enhancement of Neutrinoless Double Electron Capture in 78Kr S. Bustabad, G. Bollen, M. Brodeur, D.L. Lincoln, S.J. Novario, M. Redshaw, R. Ringle, and S. Schwarz Physical Review C 88, 035502 (2013). LEBIT II: Upgrades and Developments for High Precision Penning Trap Mass Measurements with Rare Isotopes M. Redshaw, G. Bollen, S. Bustabad, A.A. Kwiatkowski, D.L. Lincoln, S.J. Novario, R. Ringle, S. Schwarz and A.A. Valverde Nuclear Instruments and Methods in Physics Research B 317, 510 (2013). 2012 Atomic mass and double-β-decay Q-value of 48Ca M. Redshaw, G. Bollen, M. Brodeur. S. Bustabad, D.L. Lincoln, S.J. Novario, R. Ringle, and S. Schwarz Physical Review C (Rapid Communication) 86, 041306(R) (2012).