The isotopic analysis of boron by charged particle irradiation

An analytical isotopic method for boron analysis is discribed, based in the spectrometry of protons at 1300 C from scattering and/or reactions like 10 B(p,p)10 B and 11 B(p,p)11 B which were simultaneously measured. The basic parameters involved in such measurements, are discussed including cinematic, angular distribution, preparation of targets and its substracs. Particle spectra of targets with natural isotopic concentration and enriched in 10 B are presented. The ratio [11 B(po)/10 B(po)] at 1300 C for targets of nat B in respect of the incident proton beam energy between 14 and 24 MeV are shown. The results of our enriched 10 B are compared with results obtained in mass spectrometry. (author). 14 refs., 6 figs., 1 tab