Matches in SemOpenAlex for { <https://semopenalex.org/work/W85261609> ?p ?o ?g. }
Showing items 1 to 66 of
66
with 100 items per page.
- W85261609 abstract "Multigroup cross-section libraries are needed in performing neutronics calculations. These libraries are referred to as broad-group libraries. The number of energy groups and group structure are highly dependent on the application and/or user's objectives. For example, for shielding calculations, broad-group libraries such as SAILOR and BUGLE with 47-neutron and 20-gamma energy groups are used. The common procedure to obtain a broad-group library is a three-step process: (1) processing pointwise ENDF (PENDF) format cross sections; (2) generating fine-group cross sections; and (3) collapsing fine-group cross sections to broad-group. The NJOY code is used to prepare fine-group cross sections by processing pointwise ENDF data. The code has several modules, each one performing a specific task. For instance, the module RECONR performs linearization and reconstruction of the cross sections, and the module GROUPR generates multigroup self-shielded cross sections. After fine-group, i.e., groupwise ENDF (GENDF), cross sections are produced, cross sections are self-shielded, and a one-dimensional transport calculation is performed to obtain flux spectra at specific regions in the model. These fluxes are then used as weighting functions to collapse the fine-group cross sections to obtain a broad-group cross-section library. The third step described is commonly performed by the AMPX code system. SMILER convertsmore » NJOY GENDF filed to AMPX master libraries, AJAX collects the master libraries. BONAMI performs self-shielding calculations, NITAWL converts the AMPX master library to a working library, XSDRNPM performs one-dimensional transport calculations, and MALOCS collapses fine-group cross sections to broad-group. Finally, ALPO is used to generate ANISN format libraries. In this three-step procedure, generally NJOY requires the largest amount of CPU time. This time varies depending on the user's specified parameters for each module, such as reconstruction tolerances, temperatures assigned for broadening, or the number of fine energy groups. To speed up the process of multigroup cross-section generation, the NJOY code has been parallelized using the message passing interface (MPI) library.« less" @default.
- W85261609 created "2016-06-24" @default.
- W85261609 creator A5049980260 @default.
- W85261609 creator A5091446184 @default.
- W85261609 date "1999-07-01" @default.
- W85261609 modified "2023-09-26" @default.
- W85261609 title "MPI version of NJOY and its application to multigroup cross-section generation" @default.
- W85261609 hasPublicationYear "1999" @default.
- W85261609 type Work @default.
- W85261609 sameAs 85261609 @default.
- W85261609 citedByCount "0" @default.
- W85261609 crossrefType "journal-article" @default.
- W85261609 hasAuthorship W85261609A5049980260 @default.
- W85261609 hasAuthorship W85261609A5091446184 @default.
- W85261609 hasConcept C121332964 @default.
- W85261609 hasConcept C134306372 @default.
- W85261609 hasConcept C152568617 @default.
- W85261609 hasConcept C185544564 @default.
- W85261609 hasConcept C2777984123 @default.
- W85261609 hasConcept C2779281675 @default.
- W85261609 hasConcept C2781311116 @default.
- W85261609 hasConcept C33923547 @default.
- W85261609 hasConcept C41008148 @default.
- W85261609 hasConcept C52234038 @default.
- W85261609 hasConcept C62520636 @default.
- W85261609 hasConcept C66963500 @default.
- W85261609 hasConceptScore W85261609C121332964 @default.
- W85261609 hasConceptScore W85261609C134306372 @default.
- W85261609 hasConceptScore W85261609C152568617 @default.
- W85261609 hasConceptScore W85261609C185544564 @default.
- W85261609 hasConceptScore W85261609C2777984123 @default.
- W85261609 hasConceptScore W85261609C2779281675 @default.
- W85261609 hasConceptScore W85261609C2781311116 @default.
- W85261609 hasConceptScore W85261609C33923547 @default.
- W85261609 hasConceptScore W85261609C41008148 @default.
- W85261609 hasConceptScore W85261609C52234038 @default.
- W85261609 hasConceptScore W85261609C62520636 @default.
- W85261609 hasConceptScore W85261609C66963500 @default.
- W85261609 hasLocation W852616091 @default.
- W85261609 hasOpenAccess W85261609 @default.
- W85261609 hasPrimaryLocation W852616091 @default.
- W85261609 hasRelatedWork W110909491 @default.
- W85261609 hasRelatedWork W159272796 @default.
- W85261609 hasRelatedWork W1709351508 @default.
- W85261609 hasRelatedWork W188589310 @default.
- W85261609 hasRelatedWork W1973579280 @default.
- W85261609 hasRelatedWork W2212979163 @default.
- W85261609 hasRelatedWork W2225537330 @default.
- W85261609 hasRelatedWork W2264237796 @default.
- W85261609 hasRelatedWork W2276334544 @default.
- W85261609 hasRelatedWork W2349645098 @default.
- W85261609 hasRelatedWork W253879409 @default.
- W85261609 hasRelatedWork W2547184913 @default.
- W85261609 hasRelatedWork W258970007 @default.
- W85261609 hasRelatedWork W2894167669 @default.
- W85261609 hasRelatedWork W2916037074 @default.
- W85261609 hasRelatedWork W3114016890 @default.
- W85261609 hasRelatedWork W347893682 @default.
- W85261609 hasRelatedWork W53562219 @default.
- W85261609 hasRelatedWork W2115063673 @default.
- W85261609 hasRelatedWork W3090541159 @default.
- W85261609 hasVolume "81" @default.
- W85261609 isParatext "false" @default.
- W85261609 isRetracted "false" @default.
- W85261609 magId "85261609" @default.
- W85261609 workType "article" @default.