202 FRIB Graduate Brochure

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Christopher Wrede Professor of Physics Keywords: Nuclear Astrophysics, Thermonuclear Reaction Rates, Fundamental Symmetries, Beta Decay Experimental Nuclear Physics About • MSc, Physics, Simon Fraser University, 2003 • MS, M. Phil., Physics, Yale University, 2006 • PhD, Physics, Yale University, 2008 • Joined the laboratory in August 2011 • wrede@frib.msu.edu Research How Students can Contribute as Part of my Research Team Students in our group have opportunities to propose, prepare, execute, analyze, and interpret nuclear-physics experiments at FRIB and other laboratories, to publish the results in leading scientific journals, and to present the results at national and international conferences. Our alumni have advanced to positions in national laboratories, academic institutions, and industry. Our research focuses on studying nuclei experimentally to probe fundamental questions about our Universe. For example, we measure nuclear reactions, decays, and masses in the laboratory to learn about the reactions that power exploding stars or affect their synthesis of chemical elements. In the near future, our program at FRIB will be focused on measuring the beta and electroncapture decays of proton-rich nuclides using the GADGET and PXCT detection systems. With these experiments, we hope to constrain the nuclear-structure details that are most influential on photodisintegration in supernovae and the explosive burning of hydrogen and helium on the surfaces of accreting compact stars such as white dwarfs and neutron stars. Similar experiments can allow us to test hypotheses that could explain the origins of dark matter in the universe or to better constrain the effects of isospin-symmetry breaking in nuclei on tests of the unitarity of the Cabibbo-Kobayashi-Maskawa matrix, a cornerstone of the Standard Model. Biography I was born in Vancouver, Canada, to Finnish parents, and began my research career in experimental nuclear astrophysics at Canada’s TRIUMF laboratory. In 2008, I obtained a PhD in Physics from Yale University based on work at the Wright Nuclear Structure Laboratory in the same research field. From there, I moved to a postdoctoral Research Associate position at the University of Washington’s Center for Experimental Nuclear Physics and Astrophysics. Since 2011, I have been leading a research group at NSCL and FRIB with a primary interest in nuclear astrophysics and secondary interests in fundamental symmetries and nuclear structure. The Gaseous Detector with Germanium Tagging (GADGET) prior to an FRIB experiment to determine the isotopic ratios expected in microscopic grains of stardust. Selected Publications Low-energy 23 Al B-delayed proton decay and 22 Na destruction in novae, M. Friedman et al., Phys. Rev. C 101, 052802(R) (2020) GADGET: a Gaseous Detector with Germanium Tagging, M. Friedman et al., Nucl. Instrum Methods Phys. Res., Sect. A 940, 93 (2019) Doppler Broadening in 20 Mg (B, p, y) 19 Ne Decay, B. E. Glassman, D. Perez-Loureiro, C. Wrede et al., Phys. Rev. C 99, 065801 (2019) 80 2022_FRIB_Graduate_Brochurev4.indd 80 10/29/2021 3:33:58 PM
Yoshishige Yamazaki Professor of Physics, FRIB Accelerator Systems Division Deputy Director Keywords: RF Technology, RF Cavity, Beam Instability, High Beam Power Accelerator Physics About • BE, Applied Physics, University of Tokyo, 1969 • ME, Applied Physics, University of Tokyo, 1971 • PhD, Physics, University of Tokyo, 1974 • Joined the laboratory in November 2011 • yamazaki@frib.msu.edu Research Particle accelerators, which were at first invented and developed mainly for studying atomic nuclei and fundamental particles, are nowadays applied to a wide variety of fields, including materials science, life science, cancer therapy, and so forth. Future possible applications may include the transmutation of nuclear waste, which arises from nuclear energy plants. In other words, the development of particle accelerator technology is required not only for studying fundamental particle physics and nuclear physics, but also for other sciences and industrial technology. In order to build a world-class particle accelerator, we have to make use of a wide variety of state-of-art technologies. Not only that, in many cases, we have to newly invent and develop some key components, which are themselves applied to other industrial use. In other words, not only accelerators themselves, but also technologies developed for accelerators contribute a lot to the progress in science and technology. Here, the key word is “world-class.” The linear accelerator in the Facility for Rare Isotope Beams (FRIB) is truly a world-class accelerator. Many species of heavy ions up to uranium are accelerated to 400-MeV/u, generating a beam power of 400 kW (the world-highest uranium beam power). With that amount of power, many rare isotopes will be discovered and studied, opening up a new era for nuclear physics, astrophysics and others. For that purpose, superconducting cavities are entirely used to accelerate the beams from a very front end. The FRIB accelerator, thus innovative, presents many chances for new inventions and developments. I developed, built, and commissioned the RF cavity systems of KEK-PF (Photon Factory, world-highest power synchrotron radiation source, when built) and TRISTAN (world-highest energy electron/positron ring collider, when built) and the RF system of KEKB (B Factory, worldhighest luminosity electron/positron ring collider). Before joining FRIB, I was an accelerator team leader for J-PARC, which generates a world-highest pulse power of neutrons, muons, Kaons and neutrinos. I measured the threshold currents of the coupled-bunch instabilities for the first time and cured the instability for KEK-PF, developed the on-axis coupled accelerating structure for rings for TRISTAN, invented the ARES cavity, for KEKB, invented π-mode stabilizing loops for J-PARC RFQ, and developed the annular-ring coupled structure (ACS) for J-PARC linac. As can be seen from above, I have covered both the beam instability study and the RF technology. The technology/engineering is nothing but applied science. In other words, deep understanding of physics is really necessary for accelerator physics. On the other hand, accelerator development is a good playground to enjoy physics. I would like to invite many graduate students to enjoy physics by developing, building and commissioning the FRIB accelerator. Here are many chances for invention and innovation, and I can guide you for those. Selected Publications Investigation of the Possibility of L-band SRF Cavities for Medium-Beta Heavy Ion Multi-Charge-State Beams. S. Shanab, K. Saito, and Y. Yamazaki, Nucl. Instr. Meth., A 956, 162883 (2020). Beam Physics and Technical Challenges of FRIB Driver Linac, Y. Yamazaki et al., Proc. IPAC2016, 2039 (2016). First High-Power Model of the Annular-Ring Coupled Structure for Use in the Japan Proton Accelerator Research Complex Linac, H. Ao and Y. Yamazaki, Phys. Rev. ST-AB 15, 011001 (2012). Annular-Ring Coupled Structure for 400 MeV upgrade of J-PARC linac developed together with Moscow Meson Factory (MMF), Institute for Nuclear Research (INR). 81 2022_FRIB_Graduate_Brochurev4.indd 81 10/29/2021 3:33:58 PM
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FACILITY FOR RARE ISOTOPE BEAMS GRA
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Contents Director’s welcome......
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Director’s welcome Why do atoms e
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A research associate and physicist
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FRIB features Unprecedented discove
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Other tools and resources • FRIB
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JINA-CEE Michigan State University
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ASET graduate student works with an
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What is cryogenic engineering? Cryo
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Accelerator physics Students in acc
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Fun and friendship The graduate stu
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Women and Minorities in the Physica
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FRIB laboratory graduates now occup
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Njema Frazier, PhD in Theoretical N
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Page 33 and 34: The Lansing area Capital city Lansi
Page 35 and 36: The campus The East Lansing campus
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Page 39 and 40: Daniel Bazin Research Senior Physic
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Page 45 and 46: Kaitlin Cook Assistant Professor of
Page 47 and 48: Pawel Danielewicz Professor of Phys
Page 49 and 50: Venkatarao Ganni Director of the MS
Page 51 and 52: Yue Hao Associate Professor of Phys
Page 53 and 54: Morten Hjorth-Jensen Professor of P
Page 55 and 56: Pete Knudsen Senior Cryogenic Proce
Page 57 and 58: Steven Lidia Senior Physicist and A
Page 59 and 60: Steven Lund Professor of Physics Ke
Page 61 and 62: Kei Minamisono Research Senior Scie
Page 63 and 64: Fernando Montes Research Staff Phys
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Page 67 and 68: Brian O’Shea Professor of Computa
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Page 73 and 74: Gregory Severin Assistant Professor
Page 75 and 76: Jaideep Taggart Singh Associate Pro
Page 77 and 78: Andreas Stolz Professor, Operations
Page 79: Jie Wei Professor of Physics, FRIB
Page 83 and 84: Vladimir Zelevinsky Professor of Ph
Page 85 and 86: How to Apply Now that you’ve read
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202 FRIB Graduate Brochure

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