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Project List » Photofission studies with the ELIGANT-TN instrument - Technique Developement |
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Photofission studies with the ELIGANT-TN instrument - Technique Developement
proiecte.nipne.ro/pn3/37-projects.html
Acronym: GANT-PhotoFiss
Contracting Authority: Institutul de Fizica Atomica (IFA)
Number / Date of the contract: ELI-RO 14 / 2020-10-16
PN-III-P5/Subprogramul 5.1
Project Manager: Dr. Dan Mihai Filipescu
Partners: University of Bucharest
Starting date / finishing date: 2020-10-16 / 2023-10-15
Project value: 750000 RON
Abstract: The mission of the GANT-PhotoFiss project is to develop a new technique for simultaneous photofission and photoneutron cross section measurements with the ELI-NP Gamma Above Neutron Threshold Thermal Neutrons (ELIGANT-TN) detection setup, along with the associated LCS γ-ray beam diagnostics procedures.
The project is led by Dr. Dan Mihai Filipescu at the Nuclear Physics Department of the Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, in partnership with Prof. Dr. Anabella Tudora at the Nuclear Physics Department of the Faculty of Physics, University of Bucharest. We are requesting ~ 200 kEuro of funding to provide staff positions for three years as well as the necessary logistics and travels.
Currently, only Fission Fragment detection experiments are planned in the photofission programme at ELI-NP, providing information on photofission cross-sections and mass, charge, angular, and kinetic energy distributions. Although the foreseen scientific output is highly interesting for describing the process of nuclear fission, the current ELI-NP photofission programme includes no investigation on the Prompt Fission Neutron (PFN) emission - ritical nuclear data required by nuclear applications.
Project GANT-PhotoFiss will develop a method for measuring photofission cross sections and PFN multiplicity distribution and PFN average energy spectra by using the Flat Efficiency Detector ELIGANT-TN. The ELIGANT-TN instrument was initially developed by the ELIGANT group for photoneutron measurements and it is currently fully functional and commissioned. We will produce a ready to use algorithm for combined photofission and photoneutron Day 1 experiments at the ELI-NP Gamma Beam System. The algorithm will be applied for validation on 238U and 232Th photofission data sets measured in the Giant Dipole Resonance region at the NewSUBARU Laser Compton Scattering γ-ray beam facility.
A main outcome of the project will be the training of local man-power with know-how on the associated neutron multiplicity sorting technique, Laser Compton Scattering γ-ray beam diagnostics and necessary theoretical modelling.
The Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering and the University of Bucharest will provide all needed support such as infrastructure and know-how, except that detailed in the grant request.
Objectives: Train man power and gain local know-how for future photofission experiments at ELI-NP
Develop a neutron multiplicity sorting method for distinctly extracting the photofission (γ, f) and photoneutron (γ, xn) cross sections
Improve gamma beam diagnostics methods and develop a new energy unfolding technique for determining the energy spectrum of the incident LCS γ-ray beam.
Apply the methods on NewSUBARU photofission data for 238U and 232Th. Produce the experimental cross sections for the photofission and photoneutron cross sections in the 6 to 20 MeV excitation energy. Solve discrepancies between existing data sets of Livermore and Saclay.
Produce a new and reliable statistical model evaluation for the photon induced reactions on 238U and 232Th.
THE STAGES OF THE PROJECT AND DELIVERY DATES
RESULTS
PUBLISHED ARTICLES
RESEARCH TEAM
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