Скачать презентацию DIF DPTA SPN LMED Nuclear data needs Understanding basic reaction Скачать презентацию DIF DPTA SPN LMED Nuclear data needs Understanding basic reaction

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  • Количество слайдов: 129

DIF/DPTA/SPN/LMED DIF/DPTA/SPN/LMED

Nuclear data needs Understanding basic reaction mechanism between particles and nuclei Astrophysical applications (Age Nuclear data needs Understanding basic reaction mechanism between particles and nuclei Astrophysical applications (Age of the Galaxy, element abundancies …) Existing or future nuclear reactors simulations Medical applications, oil well lodging, wastes transmutation … Finite number of experimental data (price, safety or counting rates) Complete measurements restricted to low energies ( < 1 Me. V)

Content Content

1 st PART 1 st PART

Why and for whom ? Why and for whom ?

Content of an evaluated file Content of an evaluated file

What is it used for ? What is it used for ?

Too few experimental data Too few experimental data

No experimental data No experimental data

Incoherent experimental data Incoherent experimental data

CRITICAL SPHERE SIMULATION CRITICAL SPHERE SIMULATION

Bad evaluations Bad evaluations

Partial evaluations Partial evaluations

2 nd PART 2 nd PART

How ? How ?

Experimental data interpolation Experimental data interpolation

Bayesian methods Bayesian methods

Renormalisations Renormalisations

Cut and Paste Cut and Paste

Nuclear Reaction Modeling Nuclear Reaction Modeling

3 rd PART 3 rd PART

Models sequence Models sequence

Optical model Optical model

Optical Model Optical Model

Two types of approaches Total cross sections Two types of approaches Total cross sections

Phenomenologic optical model Phenomenologic optical model

Phenomenologic optical model [ ] Phenomenologic optical model [ ]

Phenomenologic optical model Phenomenologic optical model

Semi-microscopic optical model Semi-microscopic optical model

Semi-microscopic optical model Semi-microscopic optical model

Semi-microscopic optical model Semi-microscopic optical model

Semi-microscopic optical model Semi-microscopic optical model

0 0

Impact of coupled channels Impact of coupled channels

Impact of coupled channels Impact of coupled channels

Models sequence Models sequence

Pre-equilibrium model Pre-equilibrium model

Evolution equation Emission cross section in channel c Evolution equation Emission cross section in channel c

Pre-equilibrium model Pre-equilibrium model

Pre-equilibrium model Pre-equilibrium model

Models sequence Models sequence

= =

D D

b b

E E

Energy elongation Energy elongation

Energie V V elongation Energie V V elongation

Energy elongation Energy elongation

Energy elongation Energy elongation

Energy elongation Energy elongation

Neutron energy (Me. V) Neutron multiplicities Neutron energy (Me. V) Neutron multiplicities

Model(s) Model(s)

4 th PART 4 th PART

Few concrete examples Few concrete examples

The (n, 2 n) odyssey The (n, 2 n) odyssey

The (n, 2 n) odyssey The (n, 2 n) odyssey

The (n, 2 n) odyssey The (n, 2 n) odyssey

Europiums Europiums

Europiums Europiums

Impact of level densities Impact of level densities

Impact of level densities Impact of level densities

Impact of level densities Impact of level densities

Energy V V elongation Energy V V elongation

Coupled channel impact Coupled channel impact

Microscopic pre-equilibrium ? Microscopic pre-equilibrium ?

Microscopic level densities Microscopic level densities

Fully microscopic cross section Fully microscopic cross section

Fission fragments’ yields Fission fragments’ yields

Bibliography Bibliography

Bibliography Bibliography