Simulations of new uranium set-up Kvinta used on

Nuclotron accelerator at Dubna

Martin Suchopár

Nuclear Physics Institute, Academy of Sciences of the Czech Republic

Department of Nuclear Reactors, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague

13th session of the AER Working Group F - "Spent Fuel Transmutations" &4st meeting of INPRO Project RMI - "Meeting energy needs in the period of raw materials insufficiency during the 21st century"Liblice, Czech Republic, April 26 – 30, 2011

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Energy + Transmutation & Kvinta setup

Method used in MCNPX simulations

Results

Conclusion

Outline

Setup

Method

Results

Conclusion

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Setup

• E+T setup

• Kvinta setup Method

Results

Conclusion

Energy + Transmutation Setup

Kvinta 2010 and 2011 Setup

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Setup

• E+T setup

• Kvinta setup Method

Results

Conclusion

d

Kvinta 2010 setup Kvinta 2011 setup

• 3 sections

• 4 detector plates

• Pb shielding

• 5 sections

• 6 detector plates

• no Pb shielding

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Setup

• E+T setup

• Kvinta setup Method

Results

Conclusion

Kvinta-M 2011 Setup

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Setup

• E+T setup

• Kvinta setup Method

Results

Conclusion

Kvinta-M 2011 Setup

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Setup Method • Setup model

• MCNPX simulation

Results

Conclusion

Comparison of E+T and Kvinta SetupE + T setup model Kvinta 2011 setup model

30 U rods 54 U rods 61 U rods

MCNPX simulations

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• Used version MCNPX 2.7a

• Used la150n and la150h libraries

• All available physics models tested

• Most preferred combination of models – Bertini-Dresner (default) and INCL-ABLA (gives the best results)

Setup Method • Setup model

• MCNPX simulation

Results

Conclusion

Kvinta neutron distribution

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Setup Method

Results• neutron distribution

• neutron spectra

• MCNPX models

• Multiplicity in various models

Conclusion

Kvinta 5 & 4 sections setup longitudinal neutron distribution

Kvinta neutron distribution

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Setup Method

Results• neutron distribution

• neutron spectra

• MCNPX models

• Multiplicity in various models

Conclusion

Kvinta 5 & 4 sections setup radial neutron distribution

Kvinta neutron spectra

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Setup Method

Results• neutron distribution

• neutron spectra

• MCNPX models

• Multiplicity in various models

Conclusion

Kvinta 5 & 4 sections setup neutron spectra

Simulated multiplicity – various models

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Setup Method

Results• neutron distribution

• neutron spectra

• MCNPX models

• Multiplicity in various models

Conclusion

Kvinta 5 sections setup neutron multiplicity

Simulated multiplicity – various models

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Setup Method

Results• neutron distribution

• neutron spectra

• MCNPX models

• Multiplicity in various models

Conclusion

Kvinta 5 sections setup neutron multiplicity per GeV

Neutron multiplicity from various models

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 Kvinta 5 sections 4 sections3 sections +

Pb

Model 1 GeV 2 GeV 1 GeV 2 GeV 1 GeV 2 GeV

Bertini-ABLA 56.4 115.7 54.6 112.5 57.4 116.2

Bertini-Dresner 53.4 108.9 51.8 106.1 54.4 109.7

CEM03 58.5 118.3 56.7 115.2 57.4 114.7

INCL-ABLA 54.0 112.6 52.2 108.4 54.9 113.8

INCL-Dresner 54.0 112.6 52.2 108.4 54.9 113.8

ISABEL-ABLA 56.8 113.6 54.8 110.3 57.6 114.5

ISABEL-Dresner 52.8 105.8 51.3 102.7 54.1 106.7

Setup Method

Results• neutron distribution

• neutron spectra

• MCNPX models

• Multiplicity in various models

Conclusion

Conclusion

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made detailed model of the new Kvinta setup consisting of uranium target and blanket

calculated neutron multiplicity of several modifications of the new Kvinta setup

simulated neutron spectra in diverse positions in the new Kvinta setup

studied dependency on various physics models included in MCNPX

Setup

Method

Results

Conclusion

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Thank you for your attention