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Summary report of the SLAC neutronHP workshop

Summary report of the SLAC neutronHP workshop. KOI, Tatsumi. New and Future Development (Tue. 09:30-12:00). ParticleHP and Interpolation Scheme Adding break up reaction to HP Status and feature development of GND, GIDI and G4LEND Development of Fission Fragment Generator .

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Summary report of the SLAC neutronHP workshop

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  1. Summary report of the SLAC neutronHP workshop • KOI, Tatsumi

  2. New and Future Development (Tue. 09:30-12:00) ParticleHPand Interpolation Scheme Adding break up reaction to HP Status and feature development of GND, GIDI and G4LEND Development of Fission Fragment Generator

  3. What is particle_hp? • neutron_hp package uses evaluated nuclear data bases for neutron interactions: • Total cross sections • Inelastic channel cross sections • Double differential spectra of outgoing particles • Gamma emission because of nuclear level transitions • particle_hp: do the same for (inelastic) interactions of other particles (p, d, t, He3, ) Inelastic interactions of p/d/t/He3/ particles E < 200 MeV

  4. neutron_hp/particle_hp: interpolation of doubledifferentialcrosssections

  5. Outline • GND • New “nuclear” data structure to replace ENDF-6 format • ENDF atomic data also • GIDI • Transport code API for reading and sampling GND data • FUDGE • Infrastructure for reading, viewing, modifying, checking, processing and writing GND data

  6. GIDI code languages • Written in C • will probably convert to C++ in the next few years • GEANT4 wrappers written in C++ • Interface called G4LEND • Low Energy Nuclear Data (LEND) • Needs several LLNL libraries • PoPs (Property of Particles) • statusMessageReporter • numericalFunctions

  7. Fission Event Generation • Goal: single event perspective • Accurately reproduce single fission event • Maintain overall fission statistics • Conservation • Mass • Momentum • Energy Fission Sampling

  8. Performance Improvement (Tue. 13:30-15:00) Performance improvement of neutronHP by simplified Doppler broadening Advanced applications of neutron simulation and data formats

  9. Geant4 Tutorial Cource

  10. Conservation (Tue. 15:00-17:00) Introduction of conservation problem on data driven models

  11. Validation of gammas emission from neutron captured by Nitrogen nucleus Data: G. E. THOMAS et al., NIM 56, pp325-337 (1967)

  12. Biasing (Wed. 08:30-10:00) Review of Geant4 biasing

  13. Geant4 Tutorial Cource

  14. Nuclear Devices (Wed. 10:30-11:30) G4-STORK: Stochastic Calculations of Reactor Kinetics Accuracy and speed of the HP models

  15. Geant4 Tutorial Cource

  16. Geant4 Tutorial Cource

  17. Geant4 Tutorial Cource

  18. Data preparation and documentation (Wed. 11:30-12:00,Lunch Break, 13:30-15:00) CIEMAT data preparation for IAEA See later slide LLNL data preparation and international GND project See later slide Documentation of data format Prepare documentation of cross section part Full documentation needs huge efforts Possibility to use conversion tools for providing information UI commands for setting environment variables of HP

  19. International collaboration (WPEC SG38) has been formed to design a new format for storing nuclear data, and to oversee the transition from ENDF-6 to the new format. • LLNL proposed this collaboration in order to promote GND (or something based on it) as the new standard • Entitled ‘Beyond the ENDF format: a modern nuclear database structure.’ • Resources: • https://www.oecd-nea.org/science/wpec/sg38/ • https://ndclx4.bnl.gov/gf/project/sg38/

  20. ReadyTalk Audio Use phone connection rather than PC Toll free numbers are available for most countries Web Application Chat to specified person sometime useful Every video from web-cam has same display size Slide Share Only chair person controls slides Converting slides takes a long time Only one set of slides can handle per session Recording Sound quality is surprisingly good and slides are also showing Available from https://indico.cern.ch/event/319884/material/0/

  21. Thank you very much for all physical and remote participants!! I wish to have next round meeting soon!

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