Production of ~16O(~3He,p)~18F and ~20Ne(d,a)~18F Short-Lived Radioisotopes with a Plasma Focus

摘要

Mather type plasma focus with the bank energy, 150 kJ (30 kV, 333 uF), was studied for the induced activity of ~18F, a short-lived radioisotopes which is a β~+ emitter with 511 keV of gamma rays and has a half-life t_1/2 =110 min, through ~16O(~3He,p)~18F and ~20Ne(d,a)~18F nuclear reactions. The results of simulated numerical computations show that activities of 3.786×10~10Bq and 6.632×10~10Bqwere found for ~16O(~3He,p)~18F and ~20Ne(d,a)~18F reactions, respectively. The calculations were carried out for the same initial and final energies conditions, when Plasma focus works with 150 kJ at the repetition rate of 1 Hz and for 120 min of running time. According to the simulated results, the activity of ~20Ne(d,a)~18F had an increase because the projectile ion mass "deuteron" was lighter than the ~3He which resulted in the higher induced voltage and the number of projectile ions.