The Charged Particle Spectroscopy Program at TUNL

COFFEE_KLATCH · Invited

Abstract

Nuclear processing of matter provides the energy that makes stars shine and was responsible for the creation of the elements. For most of a stars life, this processing occurs at low energies, where charged particle reaction cross sections are often too small to measure using conventional methods. Studying these cross sections directly in the laboratory therefore requires high beam flux and low-background detection systems. To circumvent these limitations, novel methods can be employed, such as particle transfer measurements. At the Triangle Universities Nuclear Laboratory, we recently began a new charged particle spectroscopy program using an upgraded Enge Split-pole Spectrograph. Using this powerful equipment, we can better understand the nuclear structure underlying astrophysical reactions and thus constrain their cross sections. I will describe the Enge Spectrograph research program, detailing recent upgrades and experimental progress, and will highlight our plans for further upgrades.

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Authors

  • Richard Longland

    University of Tennessee, Knoxville, University of Alabama at Birmingham, Rutgers, The State University of New Jersey, Florida Intl Univ, Christopher Newport University, Jefferson Laboratory, University of North Georgia, Dahlonega GA 30597, Oak Ridge National Laboratory, Oak Ridge, TN 37831, Austin Peay State University department of physics and astronomy, Laboratoire des Verres et et Ceramiques, Institute des Sciences chimiques de Rennes, Austin Peay State University Department of Physics and Astronomy, Université de Rennes, Lehigh University, Austin Peay State University, University of Alabama, Oak Ridge National Laboratory, Auburn University, Auburn, AL, Purdue University, West Lafayette, IN, Queen's University Belfast, Belfast, United Kingdom, Harvard Smithsonian Center for Astrophysics, Boston, MA, Francis Marion University, Auburn University, Lawrence Berkeley National Laboratory, University of California, Davis, University of Alabama Huntsville, Oak Ridge National Lab, Univ of Tennessee, Knoxville, Oak Ridge National Lab, Univ of Tennessee, Knoxville, ITEP, Moscow, Baylor University, Saint Louis University, Louisiana State Univ - Baton Rouge, University of Chicago, Oak Ridge National Laboratory , Oak Ridge TN 37831, American Superconductor Corp., Westborough, MA 01581, USA, Tsinghua University, LBNL, Vanderbilt University, Laboratoire Aime Cotton, CNRS/Universite Paris-Sud/ENS-Cachan, Orsay France, Drake University, Des Moines, IA, University of Central Florida, University of South Alabama, North Carolina Central University