GRUCON Code Package: Status and Projects V.V.Sinitsa NRC “Kurchatov Institute” Moscow, Russia

GRUCON Code Package: Status and Projects

V.V.SinitsaNRC “Kurchatov Institute”

Moscow, Russia

Recent presentations

1. Potentials of GRUCON package and GND Structures

/WPEC SG38, May 21-22, 2013, Paris, France/

2. The GRUCON Command Language for Nuclear Data Handling /WPEC SG38, December 9-11, 2013, Tokai-Mura, Japan/

3. Probabilistic Representation of Resonance Structure in Nuclear Safety Applications /WPEC SG38 May13-14, 2014, Paris, France/

4. GRUCON – a Package of Computer Programs for Cross Section Data Processing /NDS IAEA Meeting, October 20-26, 2014, Vienna, Austria/

IAEA NDS Meeting, Vienna, Austria October 5-9, 2015

Background Package architecture Current status Implementation in the NDS IAEA Verification results Future plans and project


Topics

GRUCON: Original destination

In beginning of 60s, in the IPPE(Obninsk), the Nuclear Data Centre has been created. Since the Geneva Summit in 1955, the free exchange of data was agreed. The data libraries from different countries, with specific data representation formats (KEDAK, UKNDL, ENDL, ENDF), become available.

GRUCON was conceived as a code system for preparation of the group microscopic constants from all variety of data.

Over time, the variety of formats has been reduced to ENDF, problem changed, but GRUCON architecture, developed under the original task, has been kept.


GRUCON Architecture

The GRUCON code is so called “application code package with standardized functional content“, because it includes: command language for describing of some computation scenarios; set of functional modules to fulfil some variety of calculations; system support - set of subroutines and functions for command interpretation, command execution, data preparation to calculations and exchange between different types of memory.


Input modules:

IN, READ, ENDF, PENDF, GENDF,

GND

Processing modules:

R/T-S, U/D-F, S/-I-S, S/E-S, S/C-S, S/T-S, S/G-F, F/E-P, P/D-F,

AE/-D, S/D-M, M/C-M, AE/-AE,

… … ...

Output modules:

OUT, WRITE, ENDF,PENDF,GENDF, ACE,

TABLE, PLOT, BNAB,TEMBR

Script(commands)

Command Interpreter and Executer

Input Data Files

Tables

Data Access Functions & Subroutines

Mathematical Functions & Subroutines

Plots

Standardized Representations Library

OutputData Files

Registers

LibraryCatalogue

ControlParameters


GRUCONFlow Chart


INPUT/OUTPUT

*IN *OUT *READ *WRITE *TAB *PLOT *ZVD

*ENDF *PENDF *GENDF *GND *BNAB *TEMBR *ACE

PROCESSING

*R/T-S *U/D-F *U/D-S *S/A-S *S/C-S *S/E-S *S/I-S *S/P-S

*S/T-S *S/Y-S *S/NU-S *S/P-P *S/G-F *S/T-EA *S/D-M *S/G-MF

*S/-S *S/-A *S/-P *S/-E *S/O-S *F/C-F *F/E-F *F/G-F

*F/S-S *F/I-S *F/C-S *F/E-P *F/O-F *F/-F *F/-P *F/-S

*A/-A *A/-S *AE/-D *AE/-AE *EA/-D *EA/-EA *E/-S *E/G-E

*M/C-M *M/D-S *P/D-F *P/C-S *P/-P *TH/-EAS

SERVICE

*COPY *CONT *EXTR *ORDER *SELECT *CATLG *ARITH

Functional modules of GRUCON-D

IAEA NDS Meeting, Vienna, Austria, October 20-26, 2014

Example: Shielded Cross Section Preparation ,,,init ! Create SDL segment,in ! Enter local parameters ,in,1,endf ! Enter module control parameters: ,in,2,s/i-s ! endf,s/i-s,r/t-s,s/c-s,s/t-s, ,in,3,r/t-s ! u/d-f,f/g-f,s/g-f,f/c-f,gendf ,in,4,s/c-s ! ,in,5,s/t-s ! ,in,6,u/d-f ! ,in,7,s/g-f ! ,in,8,f/g-f !,in,9,f/c-f !,in,10,gendf !,1,20,sru ! Read data from endf tape 20,2,21,s ! Linearize cross sections 20,3,21 ! Restore *s* from *r* in RRR21,4,22,s ! Unite cross sections 22,5,23,s ! Doppler broadening 20,6,24,f ! Restore *f* from *u* in URR 23,7,25,f ! Integrate *s* for RRR24,8,25 ! Integrate *f* for URR25,9,26,f ! Unite *f* moments 26,10 ! Write data to gendf file ,,,end!-------------------------------------------! Local Parameters:*de:1e-5,150.e6,*nt:3,*tem:300.,900.,2100.*eps:0.001!--------------------------------------------*endf:ntape=20,nmat=0,nmf=0,nmt=0*s/i-s:nint=2,*de,*eps*r/t-s:nfor=0,nt=1,*de,*eps,tem=0.*s/c-s:nmat=0,ns=0,*de,*eps . . . . . . . . . .

GRUCON-D Certificate

Certificate of state registration of the computer code “GRUCON-D Computer Program Package (Demo version)”. The right holder is the Federal State Institution “National Research Center Kurchatov Institute”.

GRUCON-D is available on request


Installation Procedure


Folders:

Data / evaluated data files /

Documents / manual /

Procedures / procedures for preparing of executable modules and running tests /

Programs / sources and update files /

Tests / test inputs and results /

Batch files:

Windows: Linux: Parameters:install.bat install compiler = (intel/gfortran), bits = (32/64)

run_tests.bat run_tests run = (old/new)


My_ENDF Web page (V.Zerkin, NDS IAEA)


My_ENDF Web page (V.Zerkin, NDS IAEA)


Documentation


Test 1. Reconstruction Cross Sections for Spin Group


Test 2. Reconstruction and Doppler broadening


Test 3. Self-shielding factors


Test 4. Subgroup Parameters in the URR


Test 5. ACE Files

ACE Files with Subgroup parameters for unresolved resonances (UR) and Probability Tables for upper part of resolved resonances (RR)

RR UR RR UR

Case A: probability tables for URCase B: Probability tables for RR and subgroup parameters for UR


U235 U238

AC

E f

ile s

ize

(re

l.un

its

)

UR RR+UR

SCHERZO-556 - imaged critical infinity composition of 5.56% 235U and 94.44% 238U.

k-inf estimation is based on measurements of reactivity coefficients and spectral indexes in critical assemblies SNEAK, ERMINE and HARMONIE

Experiment A: UR (CA/E-1)% B: RR+UR (CB/CA-1)%

Kinf 1.000 ± 0.2% 1.0008±(1) 0.08% 1.0009±(1) 0.01%

F238/F235 0.0227 ± 1.3% 0.02234±(1) -1.60% 0.02233±(1) -0.04%

C238/F235 0.1154 ± 1.5% 0.11552±(3) 0.10% 0.11552±(3) 0.00%


Test 6. Probability tables in the RRR


Test 7. Subgroup Correlation Matrices


Test 8. Angle distribution representations


Test 9. Scattering on Resonances

FGFG MCRS MC

FGFG MCRS MC


Test 10. Photo-Atomic Interactions


Test 11. Thermal scattering


Test 12. Nuclide production

GRUCON-D vs. PREPRO-2015 comparison(D.L.Aldama, V.Sinitsa, A.Trkov)


Library: ENDF/B-VII.1 Materials: H-1, O-16, Fe-56, U235, U-238, Pu239 Temperatures: 0K, 293.6K Representations: point wise cross sections (PENDF), group averaged in the 640 SAND-II group structure (MENDF)

Weight function: constant

Tolerance parameter: EPS=1.e-4 (PREPRO), EPS=1.e-3 (GRUCON) PREPRO-2015 modules: LINEAR, RECENT, FIXUP, GROUPIEGRUCON-D modules: ENDF, EXTRA, F/-S, NU/-S, R/T-S, S/A-S, S/C-S, S/E-S, S/I-S, S/T-S, S/G-F, U/D-S, PENDF Tools: COMPLOT and COMHARD modules of PREPRO have been used for visualization of calculation results and analysis of disagreements.

Problem, explanation, solution


Problem 1. Averaged cross section in the last group


Problem 2. Components of potential elastic scattering cross section for missed spin groups.

In case of Fe-56 (ENDF/B-VII.1):one resonance for L=2, J=5/2;no resonances with L=2, J=7/2.GRUCON adds, PREPRO neglects corresponding components.

For agreement with PREPRO, temporary correction has been made in GRUCON (for comparison purposes only).


Problem 3. Interpolation scheme in the unresolved resonance region. According to ENDFB6 recommendation, interpolation law, pointed in ENDF file, should be used for cross sections.In PREPRO it is used for parameters. For agreement withPREPRO, the GRUCON input data was changed ( for comparison purposes only).

Plans and Projects


Updating and development of the GRUCON-D package will be continued in following directions:

1. Expansion of the R/T-S module processing capability by including multi-canal multi-level resonance formulae LMF=7 ( the Reich-Moore-Limited formalism)

2. Expansion of the ACE module processing capability by including not yet implemented energy-angular distribution laws of MF=6.

3. Updating of the KERMA module for energy release calculations.

4. Updating of the A/E-D module for group transition matrices calculations.

Works under GRUCON-B (basic) version will be started in the next year. It will include all functional modules (updated and extended)

of original GRUCON, used for the ENDF/B-V processing.

The work will be done in cooperation with Karlsruhe Technology Institute (Germany) in frame of Memorandum of Understanding (2016-2020), now is preparing for signing at the end of 2015 year.


SUPPLEMENTARY AGREEMENT No. 1 to the Memorandum of Understanding

betweenKARLSRUHE INSTITUTE OF TECHNOLOGY (KIT)

Large- Scale Research SectorKaiserstr. 12, 76131 KarlsruheFederal Republic of Germany

andNATIONAL RESEARCH CENTER "KURCHATOV INSTITUTE"

Kurchatov Square 1 123182 Moscow

Russian Federation

The Parties shall cooperate in the common field of nuclear reactor safety research, in particular on:- Methodology for safety assessment of nuclear reactors;- Computer codes and techniques for nuclear data processing, including the objective to deliver these codes to IAEA nuclear data section and OECD/NEA nuclear data bank;

Acknowledgments

I am very grateful V.Zerkin, D. Lopez Aldama for the assistance and cooperation in GRUCON-D installation and verification, S.Simakov, A.Trkov and R.Capote Noy for fruitful discussions.

Thank you for attention