Results 21 to 30 of about 6,969,361 (336)

Recent developments in the general atomic and molecular electronic structure system.

Journal of Chemical Physics, 2020
A discussion of many of the recently implemented features of GAMESS (General Atomic and Molecular Electronic Structure System) and LibCChem (the C++ CPU/GPU library associated with GAMESS) is presented.
G. Barca, C. Bertoni, L. Carrington, D. Datta, N. D. De Silva, J. E. Deustua, D. Fedorov, J. R. Gour, A. Gunina, Emilie B. Guidez, Taylor Harville, S. Irle, J. Ivanic, K. Kowalski, Sarom S. Leang, Hui Li, Wei Li, J. Lutz, I. Magoulas, J. Mato, V. Mironov, H. Nakata, Buu Q. Pham, P. Piecuch, David L. Poole, Spencer R Pruitt, Alistair P. Rendell, Luke B Roskop, K. Ruedenberg, Tosaporn Sattasathuchana, Michael W. Schmidt, Jun Shen, L. Slipchenko, M. Sosonkina, Vaibhav Sundriyal, Ananta Tiwari, Jorge L. Galvez Vallejo, Bryce M. Westheimer, M. Włoch, Peng Xu, F. Zahariev, Mark S. Gordon   +41 more
semanticscholar   +1 more source

Treatment planning with a 2.5 MV photon beam for radiation therapy

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi, Chris Hayes, Louise Belshaw, Mark Grattan, Rao Khan, James L. Gräfe   +5 more
wiley   +1 more source

Recent Developments in Nuclear Data Measurement capabilities at the Gaerttner LINAC Center at RPI

EPJ Web of Conferences, 2016
The Gaerttner LINAC Center at RPI uses a 60 MeV electron linear accelerator to produce short pulses of neutrons with duration of 5-5000 ns. The main research thrust at the Center is nuclear data for nuclear reactors and criticality safety applications ...
Danon Y., Daskalakis A., McDermott B., Thompson N., Youmans A., Block R., Barry D., Epping B., Leinweber G., Rapp M., Donovan T.   +10 more
doaj   +1 more source

Absorption of hybrid fibre modes by Cs atoms in quadrupole transitions [PDF]

Journal of Physics B: Atomic, Molecular and Optical Physics, Volume 56, Number 21, 2023, 2021
We evaluate the rate of the absorption of an optical nanofiber mode by a Cs atom in an electric quadrupole transition. With the Cs atom localized near the outer surface of the optical nano-fiber, an interaction occurs between the atomic quadrupole tensor components and the gradients of the vector components of the electric field of a hybrid fiber mode.
arxiv   +1 more source

Evaluation of an EPID in vivo monitoring system using local and external independent audit measurements

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The aim of this work was to evaluate the SunCHECK PerFRACTION, the software for in vivo monitoring using EPID images. Materials/Methods First, the PerFRACTION ability to detect errors was investigated simulating two situations: (1) variation of LINAC output and (2) variation of the phantom thickness.
Samuel Ramalho Avelino, Juliana Rosada Dias, Taís Marques Peron, Gabriel Souza Vidal   +3 more
wiley   +1 more source

Assessment of beryllium and molybdenum nuclear data files with the RPI neutron scattering system in the energy region from 0.5 to 20 MeV

EPJ Web of Conferences, 2017
A series of neutron scattering benchmark measurements were performed on beryllium and molybdenum with the Rensselaer Polytechnic Institute's Neutron Scattering System.
Daskalakis Adam, Blain Ezekiel, Leinweber Gregory, Rapp Michael, Barry Devin, Block Robert, Danon Yaron   +6 more
doaj   +1 more source

A conceptual design study of pool-type sodium-cooled fast reactor with enhanced anti-seismic capability

Mechanical Engineering Journal, 2020
The authors are developing the design concept of the pool-type sodium-cooled fast reactor (SFR) that addresses Japan’s specific siting conditions such as earthquakes and meets safety design criteria (SDC) and safety design guidelines (SDG) for Generation
Shigenobu KUBO, Yoshitaka CHIKAZAWA, Hiroyuki OHSHIMA, Masato UCHITA, Takayuki MIYAGAWA, Masao ETO, Tetsuji SUZUNO, Ichiyo MATOBA, Junji ENDO, Osamu WATANABE, Koichi HIGURASHI   +10 more
doaj   +1 more source

Digital radiography image quality evaluation using various phantoms and software

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas, Shady AlKhazzam, Virginia Tsapaki, Huda AlNaemi, Mohammed Hassan Kharita   +4 more
wiley   +1 more source

56Fe capture cross section experiments at the RPI LINAC Center

EPJ Web of Conferences, 2017
A new array of C6D6 detectors installed at the RPI LINAC Center has enabled the capability to measure neutron capture cross sections above the 847 keV inelastic scattering threshold of 56Fe through the use of digital post-processing filters and pulse ...
McDermott Brian, Blain Ezekiel, Thompson Nicholas, Weltz Adam, Youmans Amanda, Danon Yaron, Barry Devin, Block Robert, Daskalakis Adam, Epping Brian, Leinweber Gregory, Rapp Michael   +11 more
doaj   +1 more source

Resonance region measurements of dysprosium and rhenium

EPJ Web of Conferences, 2017
Neutron capture and transmission measurements have been performed, and resonance parameter analysis has been completed for dysprosium, Dy, and rhenium, Re. The 60 MeV electron accelerator at RPI Gaerttner LINAC Center produced neutrons in the thermal and
Leinweber Gregory, Block Robert C., Epping Brian E., Barry Devin P., Rapp Michael J., Danon Yaron, Donovan Timothy J., Landsberger Sheldon, Burke John A., Bishop Mary C., Youmans Amanda, Kim Guinyun N., Kang yeong-rok, Lee Man Woo, Drindak Noel J.   +14 more
doaj   +1 more source