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A ccurate N uclear D ata for nuclear E nergy S ustainability A ccurate N uclear D ata for nuclear E nergy S ustainability ANDES - WP4 High energy model validation in the 150-600 MeV domain 1 Sylvie LERAY (CEA/Saclay) Paris, November 19,

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

1

ANDES - WP4

High energy model validation in the 150-600 MeV domain

Accurate Nuclear Data for

nuclear Energy Sustainability

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

2

WP4 - High energy model validation in the 150-600 MeV domain

ADS as an option to reduce minor actinides amounts in dedicated systems

 ADS demonstrator: MYRRHA : 600 MeV - 2.5 mA or 350 MeV - 5 mA proton beam onto a liquid Pb-Bi spallation target  Necessity of reliable and validated simulation tools

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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WP4 - High-energy model validation in the 150-600 MeV domain

General objectives:

  • To identify remaining deficiencies and not understood

features of the nuclear models used in high-energy transport codes between 150 and 600 MeV

  • to use/do a few specific experiments to solve the

identified problems

  • to further improve the models
  • to do a few specific integral validation experiments
  • to assess the uncertainty with which quantities related

to high-energy reactions can be predicted

Accurate Nuclear Data for

nuclear Energy Sustainability

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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WP4 - High-energy model validation in the 150-600 MeV domain

  • Task 4.1: State-of-the-art of high-energy model predicting capability

in the 150-600 MeV domain (CEA/DSM, ULG, GSI, USC)

  • Task 4.2: SPALADIN p+Pb at 500 MeV : measurement of the fission

fragments and light evaporation residues in coincidence with light ions (USC, CEA/DSM, GSI)

  • Task 4.3: Measurement of neutron-induced light ion cross-sections

at 175 MeV on Fe, Bi and U (UU, CNRS/Caen)

  • Task 4.4: Improving of the predicting capabilities of the simulation

tools in the 150-600 MeV in order to reduce the uncertainties on key parameters of the demonstration facility spallation target (ULG, CEA/DSM, GSI, CEA/DAM, NRG)

  • Task 4.5: Validation on the results from the post irradiation analysis
  • f MEGAPIE samples (PSI, CEA/DSM)
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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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Task 4.1: State-of-the-art of high-energy model predicting capability in the 150-600 MeV domain (CEA/DSM, ULG, GSI, USC)

  • use of conclusions of the Benchmark of Spallation models

presently organized by IAEA + specific comparisons of the models to the available elementary data (from HINDAS and NUDATRA) in the 150-600 MeV energy domain

  • Assessment of uncertainties on key parameters resulting

from the uncertainties in the models

 key parameters : spallation neutron yield, total and major contributors to activity of the target and structure materials, production rate of helium and radioactive gases…  Discussion with end-users (MYRRHA), in order to define on which points the effort on model improvement should be focused

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

 Data used in the IAEA benchmark of spallation models  Proton production : p 300 and 392 MeV on different targets, Kin et al., PRC 72, 014606 (2005), Iwamoto et al., PRC 82, 034604 (2010)  LCPs and IMFs : p + Al, Co, and Au 200 MeV, Machner et al., PRC 73, 044606 (2006), p + Al, Ag, Au 200 MeV, Ginger et al., PRC 78, 034601 (2008)

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Task 4.1: State-of-the-art of high-energy model predicting capability in the 150-600 MeV domain (CEA/DSM, ULG, GSI, USC)

  • Experimental data available in the 150-600 MeV range
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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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  • Importance of predicting gases from the liquid target: He, t,

volatile elements from fission, Hg

  • Discrepancies between different sets of data, difficulty for

models to predict data at different energies  Experiment at GSI on Pb+p at 500 MeV

  • Total fission cross-sections
  • charge distribution
  • helium and IMF (Be) production XS

 Foreseen May 2012 Task 4.2: p+Pb at 500 MeV: measurement of the fission fragments and evaporation residues in coincidence with light ions (USC, GSI, CEA/DAM, CEA/DSM)

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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Task 4.3: Measurement of neutron-induced light ion cross- sections at 175 MeV on Fe, Bi and U (UU, CNRS/Caen)

  • Importance of predicting light ion cross-sections

(helium, tritium)

  • Data around 150-200 MeV scarce, region between data

library and nuclear models  experiment at TSL (Uppsala) with the MEDLEY set-ups

  • n n+Fe, Bi, U at 175 MeV (Done Autumn 2009)
  • Transparencies from R. Bevilacqua
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Light Charged Particles production from Fe and Bi induced by intermediate energy neutrons Medley Setup at the The Svedberg Laboratory, Uppsala Medley: Spectrometer system for detection of Light Charged Particles (LCP); ΔE-E for particle identification and kinetic energy measurement. The Svedberg Laboratory: quasi-monoenergetic neutron beam; neutron energy peak at 175 MeV Before TOF After TOF

TOF cut to reduce contribution of low energy tail : 50% peak @ 175 MeV 50% tail down to 85 MeV

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Light Charged Particles production from Fe and Bi induced by intermediate energy neutrons

Status

February 2009: Experimental run – LCP production from Fe and Bi Preliminary double differential cross sections: October 2009, CNR*09: oral presentation (proton, deuteron, triton production) April 2010, ND2010 Conference: oral presentation (all LCPs, i.e. p,d,t,3He, 4He) June 2010, INPC2010 Conference: poster presentation (complex particles production) November 2010, Atomic Energy Society of Japan, Symposium on Nuclear Data: invited talk Papers: Bevilacqua R. et al., Radiation Measurements (2010) doi:10.1016/j.radmeas.2010.06.034 (preliminary hydrogen isotopes production)

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DDX for light-ion production from Fe and Bi at 175 MeV (20 deg) DDX were produced for 8 emission angles (20, 40, 60, 80, 100, 120, 140, 160 deg)

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Exciton Model with Kalbach fails to reproduce new data at 175 MeV for complex particles production (d,t,3He,4He) (calculations with TALYS-1.2) EXCITON

and EXCITON and EXCITON

proton production at 175 MeV (not reported) is well reproduced

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Outlook A paper to be submitted to NIM A on Medley is under preparation (in writing) Analysis of cross section data for Fe and Bi at 175 MeV is in its final stage. Current focus of research:

  • study of pre-equilibrium emission of complex particles with a phase space

statistical approach: Exciton model and Kalbach systematics (with TALYS code)

  • microscopic simulation approach: Quantum Molecular Dynamics (QMD) with

Surface Coalescence Method (SCM) – in collaboration with Kyushu University

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

Task 4.4: Improving of the predicting capabilities of the models in the 150-600 MeV in order to reduce the uncertainties on key parameters of the demonstration facility spallation target (ULG, CEA/DSM, GSI, CEA/DAM, NRG)

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  • Objective: reduction of the model deficiencies identified in

Task 4.1

 Sub-task 4.4.1: Improving the high-energy models  Sub-task 4.4.2: High-Energy Evaluated Nuclear Data Files generated from the TALYS+BRIC reaction code as an alternative to models

  • Implementation of the improved models or evaluated data

files into standard high-energy transport codes and calculations of a real spallation target

  • Assessment of the resulting improvement on the key

parameters with the participation of end-users (MYRRHA)

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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Task 4.4: Improving of the predicting capabilities of the models in the 150-600 MeV in order to reduce the uncertainties on key parameters of the demonstration facility spallation target (ULG, CEA/DSM, GSI, CEA/DAM, NRG)

  • Sub-task 4.4.1: Improving the high-energy models (ULG,

CEA/DSM, GSI)

 Talk by Davide Mancusi with contribution from Valentina Ricciardi (GSI)

  • Sub-task 4.4.2: Investigation of the possibility to use High-

Energy Evaluated Nuclear Data Files generated from the TALYS+BRIC reaction codes (CEA/DAM, NRG)

 Validation against experimental data set used in Task 4.1

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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Task 4.5: Validation on the results from the post irradiation analysis of MEGAPIE samples (PSI, CEA/DSM)

  • Analysis of samples from the MEGAPIE liquid Pb-Bi target

irradiated during 4 months at SINQ and from ISOLDE

 Target already cut into disks. Samples should be available mid- 2010

  • List of isotopes that could be analysed:

208/209Po , 194Hg , 108mAg , 60Fe, 53Mn, 59Ni , 26Al, 36Cl, 10Be, 129I, 10Be, 55Fe

 characterization of the radionuclide inventory of the ISOLDE target as model for MEGAPIE  determination of the vertical and radial distributions of relevant radionuclides in MEGAPIE  quality of the new models concerning the production of key isotopes in the MEGAPIE samples will be assessed and discussed with end- users

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Task 4.5 Validation on the results from the post irradiation analysis of MEGAPIE samples

(Task Leader: PSI, Participants: CEA/DSM) from Dorothea Schumann

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Achievements

 A master student is working from May 2010 on the development of chemical separation studies of radionuclides from irradiated LBE using the ISOLDE target.  Matrix elements Pb and Bi are separated  -spectra are measured.  129I, 36Cl and 108mAg fractions are separated.  High variations in the activity distribution for several radionuclides within the target are found (at least factor 10)  Master thesis are going to be finished at end of December 2010)

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Work in progress and future plans

  • PhD student (former master student) from March 2011
  • Completion of the separation scheme for the Lanthanide

fraction using the ISOLDE target

  • Development of separation schemes for other long-lived

isotopes (e.g. 53Mn, 60Fe and others)

  • MEGAPIE LBE samples are planned to be taken in

May/June 2011

  • extended -measurement of all 50 samples is planned till

end of 2011(data on 207Bi as well as Hf and Lu-isotopes expected).

  • First separations of long-lived isotopes from MEGAPIE

samples maybe also possible already in 2011

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Possible delays

  • No delay expected in the sample taking of MEGAPIE
  • No delay expected in the -measurements
  • PhD thesis expected to be ready in March 2014 as the

earliest date, but results have to be provided earlier

– Necessary: selection of relevant radionuclides which have to be determined first (for all 50 samples)

  • Samples from the expansion tank can be expected only

after the complete sample taking in the frame of MEGAPIE-PIE (end of 2011)

– Information on the total amount of volatiles will be difficult to get, but measurements of the dose rates indicate that the total activity of the expansion tank is very low (maybe can be neglegted); addional checks for that are necessary.

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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WP4 - Deliverables

  • D4.1:Report on the predicting capabilities of the standard simulation

tools in the 150-600 MeV energy range (month 12) (CEA/DSM)

  • D4.2:New versions of the INCL4 and ABLA models improved in the

150-600 MeV domain (report and codes) (month 30) (ULG)

  • D4.3:Final high-energy evaluated data files and benchmarks

comparison (month 30) (CEA/DAM, NRG)

  • D4.4:Experimental results from the experiment on p+Pb at 500 MeV

(report and EXFOR library)(month 36) (USC)

  • D4.5:Light-ion production cross-sections from n+Fe, Bi and U at 175

MeV (report and EXFOR library) (month 36) (UU)

  • D4.6: Report on the validation of the simulation tools developed in

Task 4.4 and assessment of the expected reduction of uncertainty on key parameters of the ADS (month 36) (CEA/DSM)

  • D4.7: Experimental results from the MEGAPIE sample analysis

(Report and file) (M36) (PSI)

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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WP4 - Milestones

  • M4.1: Identification of the main deficiencies of the models to be

corrected (month 12)

  • M4.2: Realization of the Uppsala experiment (month 12) DONE
  • M4.3: Realization of the GSI p+Pb experiment (month 18)
  • M4.4: Obtaining of the MEGAPIE samples (month 18)
  • M4.5: Presentation of preliminary data from the Uppsala experiment

at a conference/workshop (month 24)

  • M4.6: Preliminary high-energy evaluated data files and benchmark

comparison (month 18)

  • M4.7: Analysis of the MEGAPIE samples (month 30)
  • M4.8: Experimental results from the MEGAPIE sample analysis

(Report and file) (month 36)

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Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010 Sylvie LERAY (CEA/Saclay) Paris, November 19, 2010

Accurate Nuclear Data for

nuclear Energy Sustainability

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WP4 – Final expected achievements

High-energy simulation tools

  • specifically improved in the 150-600 MeV

domain for the design of an ADS demonstration facility (MYRRHA)

  • validated on appropriate elementary and

integral data

  • whose remaining deficiencies are sufficiently

small to only affect marginally the calculations

  • f the key parameters of MYRRHA