Nuclear reaction and structure data services of the National Nuclear Data Center

Beam characterization at the Neutron Radiography Reactor

“…Exposure is a valid measure only for photon radiation, such as X-rays and gamma rays (Hendee and Ritenour, 2002). The metals most commonly used for the transfer method, indium and dysprosium, decay by beta emission, and radiate primarily beta particles (Pritychenko, et al, 2006). The absorbed dose from the beta radiation cannot be directly related to the units of exposure used to generate the characteristic curves (Hendee and Ritenour, 2002).…”

“…Figure 3.10 presents the source particle rates calculated for the bare foils in the 2011 irradiation. The square data points represent source particle rates calculated using fluxes, based on mono-energetic cross sections from literature (Pritychenko, et al, 2006). The top line is the average of the source particle rates calculated using the flux data.…”

Nuclear Reaction and Structure Databases of the National Nuclear Data Center

“…Recently, nuclear data services were substantially improved to provide better access to reaction data evaluations and compilations [2]. New Web interfaces for the Evaluated Nuclear Data File (ENDF) and the nuclear reaction experimental data (CSISRS/EXFOR) provide a wide range of options for data retrievals and analysis using standard and interpreted text formats as well as graphic tools.…”

“…The mission of the National Nuclear Data Center (NNDC) includes collection, evaluation, and dissemination of nuclear physics data for basic nuclear research and applied nuclear technologies [1,2]. The NNDC maintains and contributes to the nuclear reaction (ENDF, CSISRS alias EXFOR), nuclear structure (ENSDF) and bibliography (NSR) databases along with several other databases (NuDat, CapGam).…”

Development of IAEA nuclear reaction databases and services

“…Extensive work began in 1999 on the migration of the major nuclear data databases and services from VMS to a modern computer environment [2,3]. This initiative has been successfully completed through the co-operative efforts of the IAEA Nuclear Data Section (IAEA-NDS) and the National Nuclear Data Center (NNDC), Brookhaven National Laboratory -the new system was released by both centres in mid-2004 [4]. Subsequent to this initiative, mirror-sites of the IAEA-NDS Web system were installed and are successfully functioning in two regional Nuclear Data Centers: BARC (India) and IPEN (Brazil).…”