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  1. No Access

    Article

    Spin-oriented projectile fragments: The first application tog-factor measurements

    Ejectile nuclei in the fragmentation of intermediate-energy heavy-ion projectiles were found to be largely spin polarized. The observed polarization as a function of the outgoing momentum was nicely explained ...

    K. Asahi, H. Okuno, H. Ueno, H. Sato, J. Kura, T. Kubo… in Hyperfine Interactions (1992)

  2. No Access

    Chapter

    Magnetic Elements for the A1900 Fragment Separator at the NSCL

    A high rigidity, large acceptance fragment separator, the A1900, is being built at the NSCL. The device consists of twenty-four quadrupoles, four dipoles, sixteen sextupoles and sixteen octupoles. There are fi...

    A. F. Zeller, J. C. DeKamp, D. Johnson, F. Marti… in Advances in Cryogenic Engineering (1998)

  3. No Access

    Article

    Pulsed magnetic field method for measuring polarization of radioactive beams

    A new method has been developed for measuring the magnitude of nuclear spin polarization of a secondary, radioactive beam by making a pulsed magnetic field measurement that does not require advance knowledge o...

    D.W. Anthony, P.F. Mantica, D.J. Morrissey, G. Georgiev in Hyperfine Interactions (2000)

  4. No Access

    Article

    The LEBIT facility at MSU

    The low-energy beam and ion trap facility LEBIT at the NSCL at MSU has demonstrated that rare isotopes produced by fast-beam fragmentation can be slowed down and prepared such that precision experiments with l...

    S. Schwarz, C. Bachelet, M. Block, G. Bollen, D. Davies… in Hyperfine Interactions (2006)

  5. No Access

    Article

    Beam purification techniques for low energy rare isotope beams from a gas cell

    A linear gas stop** cell has been implemented at the NSCL as part of the Low Energy Beam and Ion Trap (LEBIT) facility. The gas stop** cell is used to convert relativistic ions into low energy ions suitabl...

    P. Schury, G. Bollen, M. Block, D. J. Morrissey, R. Ringle… in Hyperfine Interactions (2006)

  6. No Access

    Article

    The cyclotron gas stopper project at the NSCL

    Gas stop** is becoming the method of choice for converting beams of rare isotopes obtained via projectile fragmentation and in-flight separation into low-energy beams. These beams allow ISOL-type experiments...

    C. Guénaut, G. Bollen, S. Chouhan, F. Marti, D. J. Morrissey… in Hyperfine Interactions (2006)

  7. No Access

    Article

    Space charge effects on stopped projectile fragment drift in gas

    The results from a particle-in-cell code developed to describe the drifting of ions in an ionized buffer gas are described. The rate of ionization was found to have a dramatic effect on the collection efficien...

    M. Facina, G. Bollen, D. J. Morrissey in Hyperfine Interactions (2007)

  8. No Access

    Article

    Extraction of thermalized projectile fragments from gas

    The NSCL gas cell and quadrupole ion-guide system has been used to study the thermalization of fast nuclear reaction products in a buffer gas. The fraction of radioactive ions that can be extracted from the ga...

    D. J. Morrissey in The European Physical Journal Special Topics (2007)

  9. No Access

    Article

    Efficient and fast thermalization of Rare Isotope Beam from projectile fragmentation

    Gas stop** is the method of choice for converting rare isotope beams obtained via projectile fragmentation and in-flight separation into low-energy beams. Current gas stopper systems for high-energy beams ar...

    G. Bollen, S. Chouhan, C. Guénaut, F. Marti… in The European Physical Journal Special Topi… (2007)

  10. No Access

    Article

    Penning trap mass measurements of rare isotopes produced by projectile fragmentation with LEBIT at NSCL

    The Low-Energy Beam and Ion Trap facility LEBIT at the NSCL at MSU has demonstrated that rare isotopes produced by fast-beam fragmentation can be slowed down and prepared for precision experiments with low-ene...

    G. Bollen, C. Bachelet, M. Block… in The European Physical Journal Special Topi… (2007)

  11. No Access

    Article

    Technical developments for an upgrade of the LEBIT Penning trap mass spectrometry facility for rare isotopes

    The LEBIT (Low Energy Beam and Ion Trap) facility is the only Penning trap mass spectrometry (PTMS) facility to utilize rare isotopes produced via fast-beam fragmentation. This technique allows access to pract...

    M. Redshaw, B. R. Barquest, G. Bollen, S. E. Bustabad… in Hyperfine Interactions (2011)

  12. No Access

    Article

    High-precision Penning trap mass measurements of ‘difficult’ elements produced via projectile fragmentation with LEBIT

    Rare isotope beams of many elements can be difficult or impossible to obtain at ISOL facilities due to their high melting points or chemical reactivity, but they are easily produced by projectile fragmentation...

    R. Ringle, C. Bachelet, B. R. Barquest, M. Block, G. Bollen… in Hyperfine Interactions (2011)

  13. No Access

    Article

    Commissioning of the collinear laser spectroscopy facility BECOLA at NSCL/MSU

    The BEam COoler and LAser spectroscopy (BECOLA) facility at National Superconducting Cyclotron Laboratory at Michigan State University has been commissioned online to determine charge radii and electromagnetic...

    K. Minamisono, B. R. Barquest, G. Bollen, K. Cooper, K. Hammerton… in Hyperfine Interactions (2015)