PCE-2016-0014

New aspects of the prompt emission in fission (PROFISS)

General information

PNCDI III- Program 4 (Fundamental and frontier research)
Projects of Exploratory Research - 2016
PCE-2016-0014, Contract 7/2017- New aspects of the prompt emission in fission

Project duration: August 1, 2017 --> January 31, 2020
Total funding: 184 444 EUR
Host institution: University of Bucharest (Faculty of Physics)
Project leader: Professor Anabella TUDORA

Objectives of the project - succint presentation click here

The project team

Professor Dr. Anabella TUDORA- Project Leader
Dr. Mihai MIREA – Senior Researcher
Dr. Nicolae CARJAN – Senior Researcher
Professor Dr. Mihaela SIN – Senior Researcher
Dr. Georgiana GIUBEGA – Junior Researcher
Drd. Viorel TOBOSARU – PhD student
Ec. Aurel POPESCU –Accountant
Luminita SUCIU – Technician

2017

Objectives

Validation of the prompt emission model “Point-by-Point” (PbP) by a detailed comparison of the model results with the existing experimental data for the fissioning systems 252Cf(SF) and 235U(nth,f)
Preliminary results concerning the PbP model calculation of the prompt neutron multiplicity distribution nu(A) in the incident energy range of multi-chance fission
Overview of local and global even-odd effect in prompt emission in fission

Scientific publications

1) “Comprehensive overview of the Point-by-Point model of prompt emission in fission“ (full text – click here)
A.Tudora, F.-J.Hambsch
European Physical Journal A, Vol.53, Issue 8 (2017), article number 159

2) “Point-by-point model calculation of the prompt neutron multiplicity distribution nu(A) in the incident neutron energy range of multi-chance fission” (full text – click here)
A.Tudora, F.-J.Hambsch, V.Tobosaru
ND-2016, Book Series: EPJ Web of Conferences, Vol 146 (2017) article number 04004

3) “Local and global even-odd effects in prompt emission in fission “(full text – click here)
G.Giubega, A.Tudora, F.-J.Hambsch
ND-2016, Book Series: EPJ Web of Conferences, Vol 146 (2017) article number 04039

4) "Fine structure of alfa decay from the variational principle (full text-click here)
M. Mirea
Physical Review C, Vol. 96, Issue: 6 (2017) article number: 064607

5) " Preliminary results of a detailed validation of the PbP model of prompt emission and of a detailed calculation taking into account the succesive emission of each prompt neutron (sequential emission)" (full text-click here)
A. Tudora
Oral presentation at the scientific workshop THEORY-4 on Nuclear fission dynamics and the emission of prompt neutrons and gama-rays, organized by European Commission- Joint Research Center in Varna, Bulgary (2017)

2018

Objectives

The charge polarization of fission fragments and the fissioning nucleus configuration at scission
PbP model predictions of the prompt neutron multiplicity distribution nu(A) at incident neutron energies where multiple fission chances are involved
Development of a deterministic treatment of sequential emission with focus on the residual temperature distribution

Scientific publications

1) “Charge polarization and the elongation of the fissioning nucleus at scission“ (full text – click here)
C. Ishizuka, C. Chiba, N. Carjan
Romanian Reports in Physics, Vol. 70, Issue 1 (2018), article number 202

2) “Revisiting the residual temperature distribution in prompt neutron emission in fission” (full text – click here)
A.Tudora, F.-J.Hambsch, V.Tobosaru
European Physical Journal A, Vol. 54, Issue 5 (2018), article number 87

3) “Prediction of the prompt neuron multiplicity distribution nu(A) for 235U(n,f) and 239Pu(n,f) in the incident energy range of mult-chance fission “(full text – click here)
A.Tudora, F.-J.Hambsch, V. Tobosaru
Nuclear Science and Engineering, Vol. 192 Issue 1 (2018) 52-89

4) "Parameterization of the residual temperature distribution based on the modeling of succesive emission of prompt neutrons" (full text-click here)
A. Tudora, F.-J. Hambsch
THEORY-4, Book Series EPJ Web of Conferences, Vol. 169 (2018) article number UNSP 00025

5) "Fine structure of 211Bi alpha-decay from Coriolis coupling" (full text-click here)
M. Mirea
A Letters Journal Exploring the Frontiers of Physics (EPL) Vol.124 (2018) article number 12001

6) "A detailed validation of two deterministic models of prompt emission: PbP and sequential emission" (full text-click here)
A. Tudora
Oral presentation at the 5-th International Workshop on Nuclear Data Evaluation for Reactor Application WONDER-2018 (organised by CEA-Cadarache, France), 8 - 12 October 2018, Aix-en-Provence, France

7) "Residual temperature distributions and systematic behaviours of residual quantities following the sequential emission of prompt neutrons" (full text-click here)
A. Tudora
Oral presentation at the 5-th International Workshop on Nuclear Data Evaluation for Reactor Application WONDER-2018 (organised by CEA-Cadarache, France), 8 - 12 October 2018, Aix-en-Provence, France

Other papers including preliminary results (unpublished):

1) "Prompt emission model calculation for 233U(nth,f)" (full text-click here)
Ana Matei-master thesis, University of Bucharest, Faculty of Physics, June 2018

2) "Comparison of the very recent experimental data of prompt neutron emission for 235U(n,f) (measured at EC-JRC Directorate G, Geel, Belgium) with the previous results of the PbP and sequential emission modelings"
A. Tudora
Preliminary results- (full text -click here)

2019

Objectives

Application of the developed model with a deterministic treatment of sequential emission to many fissioning nuclei (²⁵²Cf(SF), ^236-244Pu(SF), ²³⁵U(n_th,f), ²³³U(n_th,f), ²³⁹Pu(n_th,f) and of the neutron induced fission of ²³⁷Np, ²³⁸U and ²³⁴U at incident energies below the threshold of the second chance fission).
Validation of two deterministic modelings of prompt emission (Point-by-Point and the secvential emission treatment) on the basis of recent experimental data
Systematic behaviours of average residual quantities following the sequential emission of prompt neutrons. Applications of these systematics - inclusion of sequential emission into the most probable fragmentation approach (Los Alamos model)

Scientific publications

1) "Prompt emission calculation for ²³³U(n_th,f)" (full text-click here )
A.Tudora, A.Matei
Romanian Journal of Physics, 64, 301 (2019)

2) "Structures in the energy distribution of the scission neutrons: Finite neutron-number effect" (full text-click here)
N.Carjan, M.Rizea
Physical Review C 99, 034613 (2019)

3) "Validation of two deterministic modelings of prompt emission in fission on the basis of recent experimental data" (full text-click here)
Anabella Tudora
European Physical Journal A 55 (6) art. number 98 (2019)

4) "Detailed validation of two deterministic models of prompt emission. Systematic behaviours of residual quantities from sequential emission in fission" (full text-click here)
Anabella Tudora
EPJ Web of Conferences 211, 04007 (2019)

5) "Systematic behaviours of different quantities related to the sequential emission in fission"
Anabella Tudora
ND-2019 International Conference on Nuclear Data for Science and Technology, 19-24 May 2019, Beijing, China
    oral presentation (full text-click here)
    proceeding (full text - click here)

6) "Overview of two deterministic modelings for prompt emissionin fission"
Anabella Tudora
THEORY-5 Scientific Workshop on nuclear fission dynamics and the emission of prompt neutrons and gamma-rays, 24-26 September 2019, Castelvecchio Pascoli, Barga, Italy
     oral presentation (full text - click here)
     proceeding (full text - click here)