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ARUNA- Association for Research at University Nuclear Accelerators.
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ARUNA-Association for Research at University Nuclear Accelerators • An Association of Florida State University Accelerator LabHope College Ion Beam LaboratoryOhio University Accelerator LabTexas A&M Cyclotron LabTUNL Triangle Universities Nuclear Lab (Duke, University of N.Carolina, N.Carolina State U.)Union College Ion Beam Anaysis LaboratoryUniversity of Kentucky Accelerator LabUniversity of Mass. (Lowell), Radiation LabUniversity of Notre Dame, ISNAPUniversity of Washington, CENPA • An Organization of the users at these non-user labs. today: 176 registered users • http://aruna.physics.fsu.edu
ARUNA-Association for Research at University Nuclear Accelerators FSU John D. Fox Laboratory Ohio UEdwards Lab. U. Kentucky Accelerator Lab U. Mass RadiationLab Texas A&M U.Cyclotron Lab. Notre Dame Univ.ISNAP facilities TUNLHIGS TUNLLENA University ofWashington CEPNAP Union CollegeIon Beam Lab TUNLTandem Lab Hope CollegeIon Beam Lab
FSU: Facility and Equipment 9 MV “FN” Tandem vdG, 9 MV Superconducting LinacBeams: p – Calcium 10 MeV/u up to mass 6 5 MeV/u up to mass 40 Compton-suppressed HPGe array, 3 clover + ~10 conventional RESOLUT in-flight radioative beam facilitybeams between mass 6 and 30 ANASEN active-target detector system ResoNeut low-energy neutron detectors
Edwards Accelerator Laboratory at Ohio University • 4.5-MV tandem accelerator • Pelletron upgrade • p, d, 3,4He, heavy ion beams • 30 m time-of-flight tunnel • 2 target rooms • 6 instrumented beamlines • particularly well equipped for • time-of-flight experiments • neutron detection Target chamber Beam Swinger Facility 4.5-MV T-type tandem Swinger Magnet (-4° qlab 158°) Cs Sputter Source Duoplasmatron He Source 30-meter TOF Tunnel
In Progress • T-Rex • TAMUTrap • SASSYER • Active Target Det • RTC + chemistry • Radioisotope production
UK Accelerator Laboratory (UKAL) • 7-MV single-ended Van de Graaff; rf ion source • 1H, 2H, 3He, and 4He beams • Terminal and post-acceleration bunching(<1 ns) • Gas targets: 0.5 to 10 MeV neutrons with 3H(p,n) and 2H(d,n); extended up to 25 MeV with 3H(d,n); monoenergetic (ΔEn< 100 keV) neutrons • Nuclear spectroscopy with neutron time-of-flight and γ-ray (HPGe/BGO) detection • Research program continuously supported by the NSF since accelerator installation in 1964; upgrade in 1990s • DOE-Nuclear Energy University Programs funding since 2009 • A hands-on, student-run facility Outside Inside
TwinSol 5 MV 5U Pelletron AMS gas-filled spectrometer 250 kV Implanter 1MV JN VdG (CASPAR) St. GEORGE recoil separator 11 MV FN Pelletron NSF Site Visit - February 11, 2014
CENPAP Recent work Excellent 6He production developed for searches for Tensor currents. Recent publications 22Na(p,g)23Mg and Consequences for 22Na Production in Classical Novae Sallaska, et al. Phys. Rev. Lett. 105, 152501 (2010). Phys. Rev. C 83, 034611 (2011). Explosive hydrogen burning… Wrede et al. Phys. Rev. C 82, 035805 (2010) . 33S(p,g)34g,mCl at oxygen-neon nova temperatures Freeman et al., Phys. Rev. C 83, 048801 (2011). Precision Measurement of the 6He Half-Life and the Weak Axial Current in Nuclei Knecht et al. Phys. Rev. Lett. 108, 122502 (2012). Phys. Rev. C (in press).
Summary • The ARUNA labs are an important resource to nuclear science in the US. • They deliver forefront science. • Many have upgrades and new programs coming up. • The “beam time crisis” at the national user facilities can be cushioned by adequately supporting operations and science atthese facilities.