Browsing by Author "Tornow, W"

Now showing items 1-6 of 6

    • A segmented, enriched N-type germanium detector for neutrinoless double beta-decay experiments 

      Leviner, LE; Aalseth, CE; Ahmed, MW; Avignone, FT; Back, HO; Barabash, AS; Boswell, M; ... (30 authors) (Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2014-01-01)
      We present data characterizing the performance of the first segmented, N-type Ge detector, isotopically enriched to 85% 76Ge. This detector, based on the Ortec PT6×2 design and referred to as SEGA (Segmented, Enriched Germanium ...

    • Differential cross section for neutron scattering from Bi209 at 37 MeV and the weak particle-core coupling 

      Zhou, Z; Ruan, X; Du, Y; Qi, B; Tang, H; Xia, H; Walter, RL; ... (16 authors) (Physical Review C - Nuclear Physics, 2010-08-03)
      Differential scattering cross-section data have been measured at 43 angles from 11° to 160° for 37-MeV neutrons incident on Bi209. The primary motivation for the measurements is to address the scarcity of neutron scattering ...

    • Neutron-deuteron analyzing power data at 19.0 MeV 

      Weisel, GJ; Tornow, W; Crowe, BJ; Crowell, AS; Esterline, JH; Howell, CR; Kelley, JH; ... (11 authors) (Physical Review C - Nuclear Physics, 2010-02-23)
      Measurements of neutron-deuteron (n-d) analyzing power Ay(θ) at En=19.0 MeV are reported at 16 angles from θc.m.=46.7 to 152.0°. The objective of the experiment is to better characterize the discrepancies between n-d data ...

    • Parity assignments in 172,174Yb using polarized photons and the K quantum number in rare earth nuclei 

      Savran, D; Müller, S; Zilges, A; Babilon, M; Ahmed, MW; Kelley, JH; Tonchev, A; ... (13 authors) (Physical Review C - Nuclear Physics, 2005-03-01)
      The 100% polarized photon beam at the high intensity γ ray source (HIγS) at Duke University has been used to determine the parity of six dipole excitations between 2.9 and 3.6 MeV in the deformed nuclei 172,174Yb in photon ...

    • Spectral structure of the pygmy dipole resonance. 

      Tonchev, AP; Hammond, SL; Kelley, JH; Kwan, E; Lenske, H; Rusev, G; Tornow, W; ... (8 authors) (Phys Rev Lett, 2010-02-19)
      High-sensitivity studies of E1 and M1 transitions observed in the reaction 138Ba(gamma,gamma{'}) at energies below the one-neutron separation energy have been performed using the nearly monoenergetic and 100% linearly polarized ...

    • Substantial increase in acceleration potential of pyroelectric crystals 

      Tornow, W; Lynam, SM; Shafroth, SM (Journal of Applied Physics, 2010-04-14)
      We report on a substantial increase in the acceleration potential achieved with a LiTaO3 pyroelectric crystal. With a single 2.5 cm diameter and 2.5 cm long z-cut crystal without electric field-enhancing nanotip we produced ...