Commissioning of HECTOR at CASPAR: <sup>27</sup>Al(p, γ)<sup>28</sup>Si resonance strength measurements 4,850 feet underground

ORAL

Abstract

The High EffiCiency TOtal absorption spectrometeR (HECTOR) is a 4π γ-summing detector designed to measure radiative-capture cross sections. Here, we present the commissioning of HECTOR at the Compact Accelerator System for Performing Astrophysical Research (CASPAR) laboratory, which is located at the Sandford Underground Research Facility 4,850 feet underground. With the underground environment drastically improving the signal-to-noise ratio of the detector, it is estimated HECTOR will be able push cross-section measurements down to the order of picobarns. Details of the experimental setup will be discussed along with the analysis of several resonance strengths measured for the 27Al(p,γ)28Si reaction between the lab energies 0.2-1 MeV. The measurements are in excellent agreement with those found in the literature.

*This work was supported by the National Science Foundation (NSF) under Grants No. PHY-1713857, PHY-2011890, PHY-1614442, and PHY-1913746, and the Sanford Underground Research Facility (SURF) under Award Number DE-SC0020216.

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Presenters

  • Orlando J Gomez

    • University of Notre Dame

Authors

  • Orlando J Gomez

    • University of Notre Dame

  • Anna Simon

    • University of Notre Dame

  • Daniel Robertson

    • University of Notre Dame

  • Alexander C Dombos

    • University of Notre Dame
    • FRIB

  • Frank Strieder

    • South Dakota School of Mines & Technology
    • South Dakota Sch Mines & Tech

  • Thomas Kadlecek

    • South Dakota School of Mines & Technology
    • South Dakota School of Mines & Technolog

  • Mark Hanhardt

    • South Dakota Science & Technology Authority (SDSTA)

  • Rebeka Kelmar

    • University of Notre Dame

  • Manoel Couder

    • University of Notre Dame

  • Joachim Goerres

    • University of Notre Dame
    • The Joint Institute for Nuclear Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA

  • Edward J Stech

    • University of Notre Dame

  • Michael C F Wiescher

    • University of Notre Dame
    • The Joint Institute for Nuclear Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA