LXXIV International conference Nucleus-2024: Fundamental problems and applications

Detection system of the DGFRS-2 setup: first applications in long term irradiations with intense heavy ion beams at DC-280 cyclotron

5 Jul 2024, 14:40

20m

Conference Hall (BLTP)

Oral Experimental and theoretical studies of nuclear reactions

Speaker

Mr Yury Tsyganov (JINR)

Description

Double Side Silicon Detector (DSSD) based spectrometer of the DGFRS-2 setup has been applied in a different heavy ion induced complete fusion nuclear reactions leading to formation of superheavy nuclei. Nuclear reactions with 48Ca, 40Ar, 54Cr projectiles were used [1,2]. Materials of206Pb, natYb, 232Th, 238U, 242Pu, 243Am were used as targets. We report about different stability tests during these long term experiment. Radiation damage induced of achange in leakage current values of DSSD detectors are under consideration.Formation of the evaporation residue (ER) registered energy spectrum measured with DSSD focal plane detector is presented. Comparison with the PC-based simulation code for these spectra generation is made for different cases. A specific of application of “active correlation” real-time method is reported in brief too [3]. Review of the design of the DGFRS-2 spectrometer is preceding the main results [4-6].
References
[1] Yu. Ts. Oganessian et. al., Investigation of 48Ca-induced reactions with 242Pu and 238U targets at the JINR Superheavy Element Factory, Phys. Rev. C 106, (2022) 024612.
[2] Yu. Ts. Oganessianet. al., First experiment at the Super Heavy Element Factory: High cross section of 288Mc in the 243Am +48Ca reaction and identification of the new isotope 264Lr, Phys. Rev. C 106, (2022) L031301.
[3] Yu. S. Tsyganov et al., Detection system for heavy element research: present status, Nucl. InstrumentsMethods Phys. Res. Sect. A Accel. Spectrometers, Detect. Assoc. Equip. 525, (2004) 213-216.
[4] D. Ibadullayev, Y.S. Tsyganov, A.N. Polyakov, A.A. Voinov and M.V. Shumeiko, Specific moments in detection of superheavy nuclei: DGFRS-2 spectrometer, JINST, 18 P05010, 2023
[5] Yu. S. Tsyganov, D. Ibadullayev et. al., New analog spectrometer of the DGFRS2setup for real-time searching of ER-α and α–α correlated sequences in heavy-ion induced complete fusionnuclear reactions, Acta Physica Polonica B Proceedings Supplement. 14, (2021) 767-774.
[6] D. Ibadullayevet. al., Flexible algorithms for background suppression in heavy ion induced nuclearreactions, Eurasian Journal of Physics and Functional Materials 6, (2022) 18-31.