The Lasentec M600 in-line particle size analyzer was installed at Oak Ridge National Laboratory (ORNL) in August 1998 to support retrieval of the Gunite and Associated Tanks (GAAT). Before installation at OWL, thesensor undement validation testing attie Pacific Northwest National Laboratory (PNNL) Instrument Validation facility. Mechanically, the instrument worked well during validation testing...

Two actinide isotopes, $^{241}$Am and $^{244}$Cm, produced chemically purified by the HFIR/REDC complex at ORNL are candidates for target materials of heavy-ion fusion reaction experiments synthesis new superheavy elements (SHEs) with $Z>118$. In framework dinuclear system model a dynamical potential energy surface (DNS-DyPES model), we systematically study $^{48}$Ca-induced reactions that have...

Two actinide isotopes, $^{241}$Am and $^{244}$Cm, produced chemically purified by the HFIR/REDC complex at ORNL are candidates for target materials of heavy-ion fusion reaction experiments synthesis new superheavy elements (SHEs) with $Z>118$. In framework dinuclear system model a dynamical potential energy surface (DNS-DyPES model), we systematically study $^{48}$Ca-induced reactions that have...

We report on the technical design and expected performance of a 592 kg heavy-water-Cherenkov detector to measure absolute neutrino flux from pion-decay-at-rest source at Spallation Neutron Source (SNS) Oak Ridge National Laboratory (ORNL). The will be located roughly 20 m SNS target with better than 5% statistical uncertainty in 2 years. This heavy-water serve as first module two-module system ...

The emergence of silicon carbide(SiC-) based power semiconductor switches, with their superior features compared with silicon(Si-) based switches, has resulted in substantial improvement in the performance of power electronics converter systems. These systems with SiC power devices have the qualities of being more compact, lighter, and more efficient; thus, they are ideal for high-voltage power...

The level structure of 25 Al has been studied at the ORNL Holifield Radioactive Ion Beam Facility (HRIBF) by measuring the angular and energy distributions of alpha particles from the 28 Si(p,α) 25 Al reaction. Proton beams (~10 nA) at laboratory energies of 40-and 42-MeV were generated by the 25 MV tandem accelerator and bombarded a natural silicon target (50 µg/cm 2). Alpha particles were det...

We present a new library for parallel distributed Fast Fourier Transforms (FFT). The importance of FFT in science and engineering and the advances in high performance computing necessitate further improvements. AccFFT extends existing FFT libraries for CUDA-enabled Graphics Processing Units (GPUs) to distributed memory clusters. We use overlapping communication method to reduce the overhead of ...

Amandeep K. Sangha, Loukas Petridis, Jeremy C. Smith, Angela Ziebell, and Jerry M. Parks a UT/ORNL Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6309; [email protected] (for correspondence) b BioEnergy Science Center, Oak Ridge, TN c Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, M407 Walters Life Sciences, 1414 Cumbe...