Status of update of G4LEND Koi, Tatsumi (SLAC) Beck, Bret (LLNL) - - PowerPoint PPT Presentation

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Status of update of G4LEND Koi, Tatsumi (SLAC) Beck, Bret (LLNL) - - PowerPoint PPT Presentation

Nov 26, 2022 160 likes •311 views

Status of update of G4LEND Koi, Tatsumi (SLAC) Beck, Bret (LLNL) Hiller, Larry (LLNL) Caleb, Mattoon (LLNL) Wright, Douglas (LLNL) GND, GIDI and G4LEND GND: Generalized Nuclear Data New, modern structure to replace legacy nuclear data

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Status of update of G4LEND

Koi, Tatsumi (SLAC) Beck, Bret (LLNL) Hiller, Larry (LLNL) Caleb, Mattoon (LLNL) Wright, Douglas (LLNL)

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GND, GIDI and G4LEND GND: Generalized Nuclear Data New, modern structure to replace legacy nuclear data formats (e.g., ENDF-6) GIDI: General Interaction Data Interface G4LEND: Geant4 Low Energy Nuclear Data G4LEND is a package of low energy nuclear interaction model of Geant4. It is a data driven and uses data written in GND format thorugh GIDI interface. G4LEND has been in release of Geant4 since v9.5 (2011).

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GND becomes a widely accepted prototype of new international nuclear data standard

International collaboration (WPEC SG38) has been formed to design a new format for storing nuclear data, and to

  • versee 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.’

Goal: complete specifications by December 2015

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How to get ENDF data in GND format

http://www.nndc.bnl.gov/exfor/endf00.jsp Click GND Retrieval 1-H-1

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How to get ENDF data in GND format

Click gnd.xml ENDFBVII.1 1-H-1 data in GND format

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Update of G4LEND Migrate recent update of GND and GIDI Introduce gamma (and other particles) as projectile New data translated from ENDF/BVII.1 has been prepared Neutrons projectile 421 nuclides, from H to Es Gamma projectile 162 nuclides, from H to Pt

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An example of data file of this version

Data file for 1-H-1

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Validation of gamma incidence reaction

C12(g,3a)

0.0001 ¡ 0.001 ¡ 0.01 ¡ 0.1 ¡ 0 ¡ 5 ¡ 10 ¡ 15 ¡ 20 ¡ 25 ¡ 30 ¡ 35 ¡ 40 ¡ 45 ¡ 50 ¡ cross ¡sec'on ¡[barn] ¡ energy ¡[MeV] ¡

gamma ¡on ¡C12 ¡

gamma ¡ neutron ¡ proton ¡ alpha ¡ ENDF ¡C12(G,non) ¡ ENDF ¡C12(G,N) ¡ ENDF ¡C12(G,P) ¡

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Validation of gamma incidence reaction

0.0001 ¡ 0.001 ¡ 0.01 ¡ 0.1 ¡ 0 ¡ 5 ¡ 10 ¡ 15 ¡ 20 ¡ 25 ¡ 30 ¡ 35 ¡ 40 ¡ 45 ¡ 50 ¡ cross ¡sec'on ¡[barn] ¡ energy ¡[MeV] ¡

gamma ¡on ¡C13 ¡

gamma ¡ neutron ¡ proton ¡ alpha ¡ ENDF ¡C12(G,X) ¡

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Validation gamma on U235 (photonNuclear and photoFission)

0 ¡ 0.2 ¡ 0.4 ¡ 0.6 ¡ 0.8 ¡ 1 ¡ 1.2 ¡ 1.4 ¡ 1.6 ¡ 0 ¡ 2.5 ¡ 5 ¡ 7.5 ¡ 10 ¡ 12.5 ¡ 15 ¡ 17.5 ¡ 20 ¡ cross ¡sec'on ¡[barn] ¡ energy ¡[MeV] ¡

neutron ¡produc'on ¡cross ¡sec'on ¡

n ¡from ¡photonNuclear ¡ n ¡from ¡photonFission ¡

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Summary

  • GND is considered as a prototype of new international

nuclear data standard

  • Being designed by an international committee
  • OECD/NEA/WPEC sub-group 38
  • Many ENDF data have been translated to GND
  • You can download them from web page
  • Update of G4LEND on going
  • Migrate to update of GND and GIDI
  • Validate working proto type for neutron and gamma
  • Hope to include coming release
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Backup slides

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Example of data file in current version.

Data file for 1-H-1

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Validation Particle production cross section gamma on C12

************************************************************ ********************************************* * G4Track Information: Particle = gamma, Track ID = 1, Parent ID = 0 ************************************************************ ********************************************* Step# X Y Z KineE dEStep StepLeng TrakLeng Volume Process 0 0 fm 0 fm -1.88 m 15 MeV 0 eV 0 fm 0 fm World initStep 1 0 fm 0 fm -50 cm 15 MeV 0 eV 1.38 m 1.38 m World Transportation 2 0 fm 0 fm -12.7 cm 0 eV 0 eV 37.3 cm 1.75 m PM_Target photonNuclear :----- List of secondaries ---------------- alpha: energy = 168 keV time = 5.831 ns alpha: energy = 195.2 keV time = 5.831 ns alpha: energy = 67.68 keV time = 5.831 ns :------------------------------------------

*********************************************************************** ********************************** * G4Track Information: Particle = gamma, Track ID = 1, Parent ID = 0 *********************************************************************** ********************************** Step# X Y Z KineE dEStep StepLeng TrakLeng Volume Process 0 0 fm 0 fm -1.88 m 15 MeV 0 eV 0 fm 0 fm World initStep 1 0 fm 0 fm -50 cm 15 MeV 0 eV 1.38 m 1.38 m World Transportation 2 0 fm 0 fm -17.8 cm 0 eV 0 eV 32.2 cm 1.7 m PM_Target photonNuclear :----- List of secondaries ---------------- gamma: energy = 1.363 MeV time = 5.66 ns gamma: energy = 871 keV time = 5.66 ns gamma: energy = 511.9 keV time = 5.66 ns alpha: energy = 3.177 MeV time = 5.66 ns Be8: energy = 1.696 MeV time = 5.66 ns :------------------------------------------

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Example of reactions gamma on 92U235

********************************************************************************************************* * G4Track Information: Particle = gamma, Track ID = 1, Parent ID = 0 ********************************************************************************************************* Step# X Y Z KineE dEStep StepLeng TrakLeng Volume Process 0 0 fm 0 fm -1.88 m 15 MeV 0 eV 0 fm 0 fm World initStep 1 0 fm 0 fm -50 cm 15 MeV 0 eV 1.38 m 1.38 m World Transportation 2 0 fm 0 fm -49.5 cm 0 eV 0 eV 4.54 mm 1.38 m PM_Target photonNuclear :----- List of secondaries ---------------- gamma: energy = 10.54 MeV time = 4.602 ns gamma: energy = 2.045 MeV time = 4.602 ns gamma: energy = 1.738 MeV time = 4.602 ns gamma: energy = 598.8 keV time = 4.602 ns U235: energy = 1.493 keV time = 4.602 ns :------------------------------------------ ********************************************************************************************************* * G4Track Information: Particle = gamma, Track ID = 1, Parent ID = 0 ********************************************************************************************************* Step# X Y Z KineE dEStep StepLeng TrakLeng Volume Process 0 0 fm 0 fm -1.88 m 15 MeV 0 eV 0 fm 0 fm World initStep 1 0 fm 0 fm -50 cm 15 MeV 0 eV 1.38 m 1.38 m World Transportation 2 0 fm 0 fm -50 cm 0 eV 0 eV 424 um 1.38 m PM_Target photoFission :----- List of secondaries ---------------- neutron: energy = 1.482 MeV time = 4.588 ns neutron: energy = 6.336 MeV time = 4.588 ns neutron: energy = 2.084 MeV time = 4.588 ns neutron: energy = 1.639 MeV time = 4.588 ns :------------------------------------------

photonNucler photoFission