Ternary particles of Z =1 to 4 emitted in spontaneous fission of 252Cf

Abstract

This paper presents the results of ternary light charged particles from 252 Cf spontenous fission source. The method ∆E -E was applied to identify the particle by a position sensitive ∆E -E telescope.The specific energy loss ( ∆E ) was measured using the transmission type ∆E detector (thicknesses of 150 µm ) ordered from the company Micron Semiconductors, while the residual energy (E) was measured by a Timepix detector with thicknesses of 600 µm . It was possible to measure partial-energy spectra of the various ternary particle types due to the thicknesses of Al foil (31 µm ) and ∆E detector (150 µm ) placed before E detector. The energy spectrum of protons was qualitatively different from the spectra of the other particles since protons from Al(n,p) and Si (n,p) reactions could contribute to the spectra.