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Title: Research at the University of Kentucky Accelerator Laboratory

The Department of Physics and Astronomy at the University of Kentucky operates a 7-MV CN Van de Graaff accelerator that produces primary beams of protons, deuterons, and helium ions. An in-terminal pulsing and bunching system operates at 1.875 MHz and is capable of providing 1 ns beam bunches at an average current of several microamperes. Nearly all ongoing research programs involve secondary pulsed neutrons produced with gas cells containing deuterium or tritium, as well as with a variety of solid targets. Most experiments are performed at a target station positioned over a deep pit, so as to reduce the background created by backscattered neutrons. Here, recent experiments will be described; these include: measurements of n-p scattering total cross sections from E n = 90 to 1800 keV to determine the n-p effective range parameter; the response of the plastic scintillator BC-418 below 1 MeV to low-energy recoil protons; n-p radiative capture cross sections important for our understanding of nucleosynthesis approximately 2 minutes after the occurrence of the Big Bang; γ-ray spectroscopy following inelastic neutron scattering to study nuclear structure relevant to double-β decay and to understand the role of phonon-coupled excitations in weakly deformed nuclei; and measurements of neutron elasticmore » and inelastic scattering cross sections for nuclei that are important for energy production and for our global understanding of the interaction of neutrons with matter.« less
Authors:
 [1] ;  [2]
  1. Univ. of Dallas, Irving, TX (United States). Dept. of Physics
  2. Univ. of Kentucky, Lexington, KY (United States). Dept. of Physics and Astronomy
Publication Date:
Grant/Contract Number:
NA0002931; NA0003348; PHY-1606890
Type:
Accepted Manuscript
Journal Name:
Physics Procedia
Additional Journal Information:
Journal Volume: 90; Journal Issue: C; Conference: CAARI2016 Conference on Applications of Accelerators to Research and Industry, Ft Worth, TX (United States), 30 Oct-04 Nov 2016; Journal ID: ISSN 1875-3892
Publisher:
Elsevier
Research Org:
Univ. of Kentucky, Lexington, KY (United States). Research Foundation
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Neutron-proton total cross sections; p(n,dγ) radiative capture cross sections; neutron production; neutron detection; γ-ray spectroscopy; neutron elastic scattering cross sections; neutron inelastic scattering cross sections
OSTI Identifier:
1415233