DNP Seminar

11-09-2021 11:00 Online

The emission probabilities and energy distributions of particles emitted during spontaneous ternary and quad fission of 252Cf are determined. To study these processes, an experimental setup was assembled (figure), consisting of three silicon telescopes ∆E-E and a silicon detector. Thin detectors with an area of 10 × 10 mm2 and a thickness of 15 and 150 µm were used to measure ∆E, and Timepix silicon pixel detectors with an area of 14 × 14 mm2 and a thickness of 300 and 600 µm were used to measure E. We registered ternary and quaternary particles from proton to carbon (C) from a source of spontaneous fission 252Cf with an activity of 350 kBq. Particle identification was carried out using the ∆E-E particle identification method (figure). Preliminary results of the collected data were presented within 45 days after the measurements. From the measured spectra of the partial energies of the particles, it was possible to estimate the total yields of the various observed types of particles by extrapolation.

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