个人简介

B.S., 1985, Rensselaer Polytechnic Institute Ph.D., 1990, Univ. of Maryland, College Park DOE Postgraduate Research Training Program, 1990-93, Oak Ridge Associated Universities Staff Scientist, UNISOR, 1993-95, Oak Ridge Associated Universities AwardOrganizationDivisionLevel CodeType CodeStart DateEnd Date ACS FellowProfessionalFellowship2011 University Distinguished ProfessorshipProfessionalHonors2011

研究领域

Chemical Physics Nuclear Physical

(Research Description PDF - 805 kb) The low-energy properties of atomic nuclei are predicted to show dramatic changes when the ratio of neutrons-to-protons in the nucleus becomes extremely unbalanced. My research group is working to deduce the electromagnetic properties of nuclei which have extreme neutron-to-proton ratios. The desired nuclei, which exist for only fractions of a second, are produced in very small quantities using intermediate-energy reactions at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University. Two electromagnetic properties of interest are the nuclear magnetic dipole moment and nuclear electric quadrupole moment. The dipole moment is sensitive to the orbital component of the angular momentum of any unpaired protons and/or neutrons in the nucleus. The dipole moment provides information on the nuclear quantum structure and the occupied single-particle states. The quadrupole moment is a measure of the deviation of the average charge distribution of the nucleus away from spherical symmetry. The shape of the collection of protons and neutrons in the nucleus, e.g. the nuclear collectivity or “deformation”, can be inferred from the quadrupole moment. One way to deduce the electromagnetic moments of nuclei is via Collinear Laser Spectroscopy (CLS). The CLS method involves the co-propagation of a low-energy beam (~ 60 keV) of atoms/ions with laser light. Fixed-frequency laser light is Doppler tuned into resonance by varying the energy of the beam, with the subsequent fluorescence detected by a photomultiplier tube. The resulting hyperfine spectrum, a product of the interaction of atomic electrons with the nucleus, is analyzed to extract the nuclear magnetic dipole and electric quadrupole moments. We have installed and commissioned a CLS beam line in the low-energy experimental area at NSCL as part of the Beam Cooling and Laser Spectroscopy (BECOLA) facility. The BECOLA facility also includes a cooler and buncher, which accepts the rare isotope beams from the NSCL beam thermalization area and converts them into a low-emittance, pulsed beam to improve the sensitivity of the CLS measurement. Stable beams of Ca, K, Fe, and Mn have been produced from off-line ion sources, and the hyperfine spectra have been collected and analyzed. A hyperfine spectrum was measured for the short-lived radioisotope 37K (T1/2 = 1.2 s), which was delivered to BECOLA at a rate of order 103 per second. The shift in the center of gravity of the hyperfine spectra for the K isotopes presented in the accompanying figure relates directly to a systematic change in nuclear size. On-line CLS measurements on neutron-deficient K and Fe isotopes are planned for the near term. Hyperfine spectra for 37K – 41K measured via CLS at the BECOLA Facility

近期论文

查看导师新发文章 （温馨提示：请注意重名现象，建议点开原文通过作者单位确认）

"Commissioning of the collinear laser spectroscopy facility BECOLA at NSCL/MSU," K. Minamisono, B. R. Barquest, G. Bollen, K. Cooper, K. Hammerton, M. Hughes, P. F. Mantica, D. J. Morrissey, R. Ringle, J. A. Rodriguez, C. A. Ryder, D. M. Rossi, S. Schwarz, R. Strum, C. Sumithrarachchi and D. Tarazona Hyperfine Int. (2014). "Beta-delayed proton emission of Kr-69 and the Se-68 rp-process waiting point" M. Del Santo, Z. Meisel, D. Bazin A. Becerril, B.A. Brown, H. Crawford, R. Cyburt, S. George, G.F. Grinyer, G. Lorusso, P.F. Mantica, F. Montes, J. Pereira, H. Schatz, K. Smith, and M. Wiescher Phys. Lett. B 738, 453 (2014). "Beta decay of 72Co and microsecond isomers in even-mass neutron-rich nickel isotopes" M. M. Rajabali, R. Grzywacz, S.N. Liddick, C. Mazzocchi, J.C. Batchelder, T. Baumann, C.R. Bingham, I.G. Darby, T.N. Ginter, S. V. Ilyushkin, M. Karny, W. Krolas, P. F. Mantica, K. Miernik, M. Pfutzner, K. P. Rykaczewski, D. Weisshaar, and J. A. Winger J. Phys. G Nucl. Part. Phys. 41, 115014 (2014). "A field programmable gate array-based time-resolved scaler for collinear laser spectroscopy with bunched radioactive potassium beams" D. M. Rossi, K. Minamisono, B. R. Barquest, G. Bollen, K. Cooper, M. Davis, K. Hammerton, M. Hughes, P. F. Mantica, D. J. Morrissey, R. Ringle, J. A. Rodriguez, C. A. Ryder, S. Schwarz, R. Strum, C. Sumithrarachchi, D. Tarazona, and S. Zhao Rev. Sci. Instrum. 85, 093503 (2014). "New half-lives of very neutron-rich iron isotopes" C. Mazzocchi, R. Surman, R. Grzywacz, J. C. Batchelder, C. R. Bingham, D. Fong, J. H. Hamilton, J. K. Hwang, M. Karny, W. Kr髄as, S. N. Liddick, P. F. Mantica, A. C. Morton, W. F. Mueller, K. P. Rykaczewski, M. Steiner, A. Stolz, J. A. Winger, and I. N. Borzov Phys. Rev. C 88, 064320 (2013). "Collinear laser spectroscopy on the ground state and an excited state in neutral 55Mn," A. Klose, K. Minamisono, and P.F. Mantica Phys. Rev. A 88, 042701 (2013). "Commissioning of the collinear laser spectroscopy system in the BECOLA facility at NSCL," K. Minamisono, P.F. Mantica, A. Klose, S. Vinnikova, A. Schneider, B. Johnson, and B.R. Barquest Nucl. Instrum. Methods Phys. Res. A 709, 85-94 (2013). "Beta-delayed proton emission in the 100Sn region," G. Lorusso, A. Becerril, A. Amthor, T. Baumann, D. Bazin, J. S. Berryman, B.A. Brown, R.H. Cyburt, H.L. Crawford, A. Estrade, A. Gade, T. Ginter, C.J. Guess, M. Hausmann, G.W. Hitt, P.F. Mantica, M. Matos, R. Meharchand, K. Minamisono, F. Montes, G. Perdikakis, J. Pereira, M. Portillo, H. Schatz, K. Smith, J. Stoker, A. Stolz, and R.G.T. Zegers Phys. Rev. C 86, 014313 (13 pages) (2012). "Beta decay of 71,73Co: Probing single-particle states approaching doubly-magic 78Ni," M.M. Rajabali, R. Grzywacz, S.N. Liddick, C. Mazzocchi, J.C. Batchelder, T. Baumann, C.R. Bingham, I.G. Darby, T.N. Ginter, S.V. Ilyushkin, M. Karny, W. Krolas, P.F. Mantica, M. Pfutzner, K.P. Rykaczewski, D. Weisshaar, and J.A. Winger Phys. Rev. C 85, 034326 (10 pages) (2012). "Tests of atomic charge-exchange cells for collinear laser spectroscopy," A. Klose, K. Minamisono, Ch. Geppert, N. Froemmgen, M. Hammen, J. Kraemer, A. Krieger, C.D.P. Levy, P.F. Mantica, W. Noertershaeuser, and S. Vinnikova Nucl. Instrum. Methods Phys. Res. A 678, 114-121 (2012). "Beta decay of nuclei around 90Se: Search for signatures of a N=56 subshell closure relevant to the r process," M. Quinn, A. Aprahamian, J. Pereira, R. Surman, O. Arndt, T. Baumann, A. Becerril, T. Elliot, A. Estrade, D. Galaviz, T. Ginter, M. Hausmann, S. Hennrich, R. Kessler, K.-L. Kratz, G. Lorusso, P.F. Mantica, M. Matos, F. Montes, B. Pfeiffer, M. Portillo, H. Schatz, F. Schertz, L. Schnorrenberger, E. Smith, A. Stolz, W.B. Walters, and A. Woehr Phys. Rev. C 85, 035807 (8 pages) (2012). "High-spin microsecond isomeric states in 96Ag," A.D. Becerril, H. Schatz, F. Montes, A. Amthor, T. Baumann, D. Bazin, J.S. Berryman, B.A. Brown, R.H. Cyburt, H.L. Crawford, A. Estrade, A. Gade, T. Ginter, C.J. Guess, M. Hausmann, G.W. Hitt, G. Lorusso, P.F. Mantica, M. Matos, R. Meharchand, K. Minamisono, G. Perdikakis, J. Pereira, M. Portillo, K. Smith, J. Stoker, A. Stolz, and R.G.T. Zegers Phys. Rev. C 84, 041303(R) (5 pages) (2011). "Half-lives of ground and isomeric states in 97Cd and the astrophysical origin of 96Ru," G. Lorusso, A. Becerril, A. Amthor, T. Baumann, D. Bazin, J.S. Berryman, B.A. Brown, R.H. Cyburt, H.L. Crawford, A. Estrade, A. Gade, T. Ginter, C.J. Guess, M. Hausmann, G.W. Hitt, P.F. Mantica, M. Matos, R. Meharchand, K. Minamisono, F. Montes, G. Perdikakis, J. Pereira, M. Portillo, H. Schatz, K. Smith, J.B. Stoker, A. Stolz, and R.G.T. Zegers Phys. Lett. B. 699, 141-144 (2011) "Half-lives and branching for beta-delayed neutron emission for neutron-rich Co-Cu isotopes in the r-process" P. Hosmer, H. Schatz, A. Aprahamian, O. Arndt, R.R.C. Clement, A. Estrade, K. Farouqi, K.-L. Krantz, S.N. Liddick, A.F. Lisetskiy, P.F. Mantica, P. Moller, W.F. Mueller, F. Montes, A.C. Morton, M. Ouellete, E. Pellegrini, B. Pfeiffer, P. Reeder, P. Santi, M. Steiner, A. Stolz, B.E. Tomlin, W.B. Walters, and A. Wohr Phys. Rev. C 82, 025806 (13 pages) (2010). "Proton holes states in the N=30 neutron-rich 49K isotope" R. Broda, J. Wrzesinski, A. Gadea, N. Marginean, B. Fornal, L. Corradi, A. Stefanini, W. Krolas, T. Pawlat, B. Szpak, S. Lunardi, J.J. Valiente-Dobon, D. Mengoni, E. Farnea, M.P. Carpenter, G. DeAngelis, F. Della Vedova, E. Fioretto, B. Guiot, R.V.F. Janssens, P.F. Mantica, P. Mason, G. Monagnoli, D.R. Napoli, R. Orlandi, I. Pokrovskiy, G. Pollardo, E. Sahin, F. Scarlassara, R. Silvestri, S. Szilner, C.A. Ur, M. Trotta, and S. Zhu Phys. Rev. C 82, 034319 (7 pages) (2010). "Beta decay and isomeric properties of neutron-rich Ca and Sc isotopes" H.L. Crawford, R.V.F. Janssens, P.F. Mantica, J.S. Berryman, R. Broda, M.P. Carpenter, N. Cieplicka, B. Fornal, G. Grinyer, N. Hoteling, B.P. Kay, T. Lauritsen, K. Minamisono, I. Stefanescu, J.B. Stoker, W.B. Walters, and S. Zhu Phys. Rev. C. 82, 014311 (15 pages) (2010). "Doubly-magic nature of 56Ni: measurement of the ground state nuclear magnetic dipole moment of 55Ni," J.S. Berryman, K. Minamisono, W.F. Rogers, B.A. Brown, H.L. Crawford, G.F. Grinyer, P.F. Mantica, J.B. Stoker, and I.S. Towner Phys. Rev. C. 79, 064305 (6 pages) (2009). "Low-energy structure of 61Mn populated following beta decay of 61Cr," H.L. Crawford, P.F. Mantica, J.S. Berryman, R. Broda, B. Fornal, C.R. Hoffman, N. Hoteling, R.V.F. Janssens, S.M. Lenzi, J. Pereira, J.B. Stoker, S.L. Tabor, W.B. Walters, X. Wang, and S. Zhu Phys. Rev. C. 79, 054320 (7 pages) (2009). "Beta-decay half-lives and beta-delayed neutron emission probabilities of nuclei in the region A < 110, relevant for the r process," J. Pereira, S. Hennrich, A. Aprahamian, O. Arndt, A. Becerril, T. Elliot, A. Estrade, D. Galaviz, R. Kessler, K.-L. Kratz, G. Lorusso, P.F. Mantica, M. Matos, P. Moller, F. Montes, B. Pfeiffer, H. Schatz, F. Schertz, L. Schnorrenberger, E. Smith, A. Stolz, M. Quinn, W.B. Walters, and A. Woehr Phys. Rev. C 79, 035806 (18 pages) (2009). "Ground state magnetic moment of mirror nuclei studied at NSCL," P.F. Mantica and K. Minamisono Proceedings of the 2008 Zakopane Conference on Nuclear Physics Acta Physica Polonica B 40, 779 (2009) "Beta decay studies of neutron-rich nuclei near 52Ca," H.L. Crawford, R.V.F. Janssens, P.F. Mantica, J.S. Berryman, R. Broda, M.P. Carpenter, B. Fornal, G.F. Grinyer, N. Hoteling, B. Kay, T. Lauritsen, K. Minamisono, I. Stefanescu, J.B. Stoker, W.B. Walters, and S. Zhu, Proceedings of the 2008 Zakopane Conference on Nuclear Physics, Acta Physica Polonica B 40, 481 (2009).