Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Neutron Environment Characterization of the Central Cavity in the Annular Core Research Reactor
Author: Radiation Characterization Summary
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 111
Book Description
This document presents the facilit y - recommended characteri zation o f the neutron, prompt gamma - ray, and delayed gamma - ray radiation fields in the Annular Core Research Reactor (ACRR) for the cen tral cavity free - field environment with the 32 - inch pedestal at the core centerline. The designation for this environmen t is ACRR - FF - CC - 32 - cl. The neutron, prompt gamma - ray, and delayed gamma - ray energy spectra, uncertainties, and covariance matrices are presented as well as radial and axial neutron and gamma - ray fluence profiles within the experiment area of the cavity . Recommended constants are given to facilitate the conversion of various dosimetry readings into radiation metrics desired by experimenters. Representative pulse operations are presented with conversion examples . Acknowledgements The authors wish to th ank the Annular Core Research Reactor staff and the Radiation Metrology Laboratory staff for their support of this work . Also thanks to David Ames for his assistance in running MCNP on the Sandia parallel machines.
Radiation Characterization Summary
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 89
Book Description
This document presents the facility-recommended characterization of the neutron, prompt gamma-ray, and delayed gamma-ray radiation fields in the Annular Core Research Reactor (ACRR) for the 44-inch-long lead-boron bucket in the central cavity on the 32-inch pedestal at the core centerline. The designation for this environment is ACRR-LB44-CC-32-cl. The neutron, prompt gamma-ray, and delayed gamma-ray energy spectra are presented as well as radial and axial neutron and gamma-ray flux profiles within the experiment area of the bucket. Recommended constants are given to facilitate the conversion of various dosimetry readings into radiation metrics desired by experimenters. Representative pulse and steady-state operations are presented with conversion examples.
Benchmark Experiments/Calculations of Neutron Environments in the Annular Core Research Reactor
Author: K. Russell DePriestPublisher:
ISBN:
Category : Neutron environments
Languages : en
Pages : 11
Book Description
Benchmark experiments using spherical test objects were performed in the central cavity of Sandia National Laboratories' Annular Core Research Reactor. The experiments were performed with 10.16 cm and 17.78 cm diameter aluminum (AI6061) and high-density polyethylene spheres that were essentially solid with cavities scrolled out along the equator to allow the insertion of activation foils and/or sulfur pellets. The neutron monitor foils were selected to cover a wide range of reaction energies. The reactor environments were modeled in detail using Monte Carlo N-Particle eXtended (mcnpx). The experimental results were compared to the Monte Carlo calculations of the reaction rates of each of the foils at various depths in the spheres produced by mcnpx. The comparison includes a complete treatment of the uncertainties.
Radiation Characterization Summary
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 115
Book Description
This document presents the facility-recommended characterization of the neutron, prompt gamma-ray, and delayed gamma-ray radiation fields in the Annular Core Research Reactor (ACRR) for the cadmium-polyethylene (CdPoly) bucket in the central cavity on the 32-inch pedestal at the core centerline. The designation for this environment is ACRR-CdPoly-CC-32-cl. The neutron, prompt gamma-ray, and delayed gamma-ray energy spectra, uncertainties, and covariance matrices are presented as well as radial and axial neutron and gamma-ray fluence profiles within the experiment area of the bucket. Recommended constants are given to facilitate the conversion of various dosimetry readings into radiation metrics desired by experimenters. Representative pulse operations are presented with conversion examples. Acknowledgements The authors wish to thank the Annular Core Research Reactor staff and the Radiation Metrology Laboratory staff for their support of this work. Also thanks to Drew Tonigan for helping field the activation experiments in ACRR, David Samuel for helping to finalize the drawings and get the parts fabricated, and Elliot Pelfrey for preparing the active dosimetry plots.
Radiation Characterization Summary
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 111
Book Description
This document presents the facility-recommended characterization of the neutron, prompt gamma-ray, and delayed gamma-ray radiation fields in the Annular Core Research Reactor (ACRR) for the polyethylene-lead-graphite (PLG) bucket in the central cavity on the 32-inch pedestal at the core centerline. The designation for this environment is ACRR-PLG-CC-32-cl. The neutron, prompt gamma-ray, and delayed gamma-ray energy spectra, uncertainties, and covariance matrices are presented as well as radial and axial neutron and gamma-ray fluence profiles within the experiment area of the bucket. Recommended constants are given to facilitate the conversion of various dosimetry readings into radiation metrics desired by experimenters. Representative pulse operations are presented with conversion examples. Acknowledgements The authors wish to thank the Annular Core Research Reactor staff and the Radiation Metrology Laboratory staff for their support of this work. Also thanks to David Ames for his assistance in running MCNP on the Sandia parallel machines.
Energy Research Abstracts
Author: Nuclear Science Abstracts
Author: Reactor Dosimetry: Proceedings Of The 9th International Symposium
Author: Hamid Ait AbderrahimPublisher: World Scientific
ISBN: 9814545317
Category :
Languages : en
Pages : 959
Book Description
This symposium provided a forum for interchange of state-of-the-art techniques and databases and for standardization of radiation metrology.The proceedings are of value to anyone involved in reactor dosimetry, including researchers, manufacturers, and representatives from industry, utilities and regulatory agencies. The major topics treated are: reactor pressure vessel surveillance and plant life management; reactor dosimetry techniques; benchmarks; nuclear data; damage correlation and exposure parameters; experimental and calculational characterization of irradiation environments; dosimetry for research reactors and irradiation experiments.
Radiological Characterization of Shut Down Nuclear Reactors for Decommissioning Purposes
Author: International Atomic Energy AgencyPublisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 204
Book Description
This report describes and assesses radiological characterization as a precursor to decommissioning. It shows the influence of the radioactive inventory on the planning and strategies of decommissioning and also presents an extensive overview of characterization results on various reactors which have been or are being decommissioned.