Astrophysical Nuclear Reactions Group 

facilities

• DRAGON

  TRIUMF’s unique DRAGON (Detector of Recoils And Gammas of Nuclear Reactions) facility is giving astronomers a clearer view of our stardust origins by simulating the rapid nuclear reactions that take place in exploding stars. It is the only facility in the world capable of experimentally measuring many of these astrophysical reactions. You can read more about DRAGON here, or visit the experiment’s website here.

• TUDA

  With TUDA (TRIUMF U.K. Detector Array), TRIUMF scientists and international collaborators are making critical insights into key stellar element formation pathways that can only be experimentally studied using accelerated rare isotopes. You can read more about TUDA here.

Group Members

Research Scientists

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Emeritus Scientists

Postdoctoral Research associates

Graduate Students

publications

• Select publications

  The following is not a comprehensive list of all publications. For inquiries, please contact Chris Ruiz.

   

  • A. Lennarz, M. Williams, A. M. Laird, U. Battino, A. A. Chen, D. Connolly, B. Davids, N. Esker,
    R. Garg, M. Gay, U. Greife, U. Hager, D. Hutcheon, J. Jos´e, M. Lovely, S. Lyons, A. Psaltis, J. E.
    Riley, A. Tattersall, and C. Ruiz. First inverse kinematics measurement of key resonances in the 22Ne(p,gamma)23Na reaction at stellar temperatures.
    Physics Letters B, 807:135539, August 2020.
  • J. Fallis, C. Akers, A.M. Laird, A. Simon, A. Spyrou, G. Christian, D. Connolly, U. Hager, D.A.
    Hutcheon, A. Lennarz, P. O’Malley, S.J. Quinn, J. Riley, A. Rojas, C. Ruiz, and M. Williams. First measurement in the gamow window of a reaction for the !-process in inverse kinematics: 76se(alpha,gamma)80kr.
    Physics Letters B, 807:135575, 2020.
  • M. P. Taggart, C. Akers, A. M. Laird, U. Hager, C. Ruiz, D. A. Hutcheon, M. A. Bentley, J. R. Brown,
    L. Buchmann, A. A. Chen, J. Chen, K. A. Chipps, A. Choplin, J. M. D’Auria, B. Davids, C. Davis,
    C. Aa. Diget, L. Erikson, J. Fallis, S. P. Fox, U. Frischknecht, B. R. Fulton, N. Galinski, U. Greife,
    R. Hirschi, D. Howell, L. Martin, D. Mountford, A. St. J. Murphy, D. Ottewell, M. Pignatari, S. Reeve,
    G. Ruprecht, S. Sjue, L. Veloce, and M. Williams. A direct measurement of the 17O(alpha,gamma)21Ne reaction in inverse kinematics and its impact on heavy element production.
    Physics Letters B, 798:134894, November 2019.
  • D. Connolly, P. D. O’Malley, C. Akers, A. A. Chen, G. Christian, B. Davids, L. Erikson, J. Fallis, B. R.
    Fulton, U. Greife, U. Hager, D. A. Hutcheon, S. Ilyushkin, A. M. Laird, A. Mahl, and C. Ruiz. Direct measurement of resonance strengths in 34S(alpha ,gamma )38Ar at astrophysically relevant energies using the DRAGON recoil separator.
    Physical Review C, 97:035801, March 2018.
  • G. Christian, G. Lotay, C. Ruiz, C. Akers, D. S. Burke, W. N. Catford, A. A. Chen, D. Connolly,
    B. Davids, J. Fallis, U. Hager, D. Hutcheon, A. Mahl, A. Rojas, and X. Sun. Direct measurement of astrophysically important resonances in 38K(p ,gamma )39Ca.
    Physical Review C, 97:025802, February 2018.
  • R. Wilkinson, G. Lotay, A. Lennarz, C. Ruiz, G. Christian, C. Akers, W. N. Catford, A. A. Chen,
    D. Connolly, B. Davids, D. A. Hutcheon, D. Jedrejcic, A. M. Laird, L. Martin, E. McNeice, J. Riley,
    and M. Williams. Direct Measurement of the Key Ec.m.=456 keV Resonance in the Astrophysical
    19Ne (p ,gamma )20Na Reaction and Its Relevance for Explosive Binary Systems.
    Physical Review Letters, 119:242701, December 2017.
  • J. R. Tomlinson, J. Fallis, A. M. Laird, S. P. Fox, C. Akers, M. Alcorta, M. A. Bentley, G. Christian,
    B. Davids, T. Davinson, B. R. Fulton, N. Galinski, A. Rojas, C. Ruiz, N. de S´er´eville, M. Shen, and
    A. C. Shotter. Measurement of 23Na (alpha,p )26Mg at Energies Relevant to 26Al Production in Massive
    Stars.
    Physical Review Letters, 115:052702, July 2015.
  • Chris Ruiz, Uwe Greife, and Ulrike Hager. Recoil separators for radiative capture using radioactive ion beams. Recent advances and detection techniques.
    European Physical Journal A, 50:99, June 2014.

Careers