Sat, 16 May 2026 RO   EN        Project List »  Advanced detection system for MNT reactions at Super FRS Advanced detection system for MNT reactions at Super FRS www.nipne.ro/proiecte/pn4/23-projects.html Acronym: mu-TOSCA Contracting Authority: Institutul de Fizica Atomica (IFA) Number / Date of the contract: FAIR-RO 013 / 2024-07-09 Program: PNCDI IV / Subprogram 5.9.2 Project Manager: Mihaela-Cristina Petrone Partners: Starting date / finishing date: 2024-07-09 / 2026-12-31 Project value: 800000 RON Abstract: The production and study of the properties of new radioactive isotopes is an essential field in nuclear physics, which ensures its continuity and relevance in view of current global technological developments. In the context of the crisis of 48Ca, necessary for the synthesis of new superheavy elements, multinucleon transfer reactions (MNT) have returned in the last decade to the attention of large international facilities. Researchers involved in the development of new radioactive beam facilities, such as Super-FRS at GSI and S3 at GANIL, have turned their focus to MNT reactions as an alternative method to produce exotic ion species, but also to access the neutron-rich nuclei in the Terra Incognita region. Although, first observed in the late 1960s at JINR, the mechanism characterizing MNT reactions is not completely understood presently, considering its complexity as a many-body process. A schematic description for this type of reaction consists in the formation of a molecule like di-nuclear system (DNS), where the surfaces of two colliding nuclei have a significant overlap, forming a neck structure during the collision which rotates as a whole and evolves in time. The di-nuclear system progress towards equilibrium by exchanging nucleons and transforming its shape and, eventually, splits into two fragments. An important missing part of MNT reaction puzzle refers to the production cross section at angles close to 0o. Presently, the available experimental data is rather scarce at these angles. Such measurements of reaction products cross sections are very challenging to be performed because of the difficulties in removing the main beam charge states and the wide transverse momentum distribution of MNT products. To further advance the research studies in this field, the coupling between new and complex detection system is required. The project proposal is based on the experience of the reaserch team in conducting similar studies performed at GANIL, as well as on their contribution to high-performance detection system developments. The activities proposed within this project proposal will allow to evaluate in a comprehensive manner the possibility of studying the production of exotic ions emitted close to 0o in multinucleon transfer reactions, using a time of flight detector (TOSCA) coupled with an Nd-doped permanent magnet of IFIN-HH. A second objective of the project is a feasibility study of using a photovoltaic (solar) cell array for heavy ion identification produced in MNT or fission reactions. The response of the solar cell array will first be characterized in terms of energy and time resolution with a source of 252Cf at IFIN-HH. The heavy ion beam behavior of the assembly will be tested during the G-22-00174 experiment at GSI. These preparatory tests will give us a clear idea about the performances and the limitations of this detection system and will provide us the possibility to optimize the detection system for the actual experiment with dedicated beam time. The lower operational costs compared with a standard magnetic spectrometer, makes mu-TOSCA a very convenient device to be used for systematic studies of these reactions. Following this approach, the most productive reaction channels that will be identify with the help of mu-TOSCA device, will be used in the future at Super FRS for the production for secondary radioactive beams with high intensity. Objectives: Objective I. Experiment at 9MV Bucharest Tandem I.1. Testing the performances of the TOSCA + photovoltaic (solar) cells array using a 252Cf source. Milestone 1.1 (01.09.2024) Data analysis. Activity report. I.2. Preparing the 9MV Tandem experiment. Milestone I.2 (01.12.2024) ) Vacuum tests/Preparing the mechanics for the detectors/DAQ tests.T I.3. 9MV Tandem experiment/ Preliminary data analysis. MilestoneI.3 (31.12.2024) ) Preliminary data analysis. Activity report. Objective II. G-22-00174 GSI experiment (In-beam test of a TOF-?E-E method for complete identification via mass-(A) and charge-(Z) number of fragments produced in Multi Nucleon Transfer reactions) Milestone 2.1 (31.12.2025) Data analysis TOSCA + photovoltaic cell array in-beam test. Objective III. Preparing and writing a new experimental proposal for studying MNT reactions at 0o Milestone 3.1 (31.12.2026) Research on the new experimental case. Discussions with our collaborators. THE STAGES OF THE PROJECT AND DELIVERY DATES RESULTS [Project Activity Report] PUBLISHED ARTICLES RESEARCH TEAM Back to the Project List Versiunea proiectului in limba romana      Address: Str. Reactorului no.30, P.O.BOX MG-6, Bucharest - Magurele, ROMANIA Tel: +(4021) 404.23.00, Fax: +(4021) 457.44.40 2026 IFIN-HH. All rights reserved.