0000000000875538

AUTHOR

A Barbon

Application of Electron Spin Resonance technique in neutron dosimetry

Along with the Neutron Capture Therapy (NCT) development and with the use of thermal neutrons for radiotherapeutic purposes, many efforts have been devoted to the beam characterization in order to optimize the therapy procedures. Reliable dosimetric measurements should be able to determine the various components (neutronic and photonic) of the mixed beam usually employed for therapy [1]. We have studied the effect of the additive such as gadolinium and 10B-boric acid on the neutron sensitivity of alanine ESR dosimeters exposed to a gamma and mixed (n, gamma) field mainly composed by thermal neutrons. We have chosen both this additive nuclei because of their very high capture cross section t…

research product

Pulsed EPR investigations on radiations dosimeters.

research product

Distribuzione di radicali liberi in dosimetri EPR irradiati con radiazioni di diverso LET

In questo lavoro abbiamo analizzato la distribuzione spaziale dei radicali liberi osservati in dosimetri di tartrato di ammonio esposti a vari fasci di radiazione (protoni da 19.3 M e V , fotoni gamma del ^°Co e ioni carbonio da 62 MeV/nucleone). Lo studio è stato effettuato sia tramite Electron Spin Resonance in onda continua che tramite Electron Spin Echo ( E S E ) decay analysis che forniscono informazioni rispettivamente sulla concentrazione macroscopica e microscopica d i radicali liberi. U n a più approfondita indagine della distribuzione d i radicali liberi all'interno dei dosimetri è stata condotta attraverso l a tecnica Doublé Electron-Electron Resonance ( D E E R ) che è i n grado…

research product

Out-of-phase second harmonic detection as a tool for the determination of relaxation times

research product

Pulsed EPR analysis of tooth enamel samples exposed to UV and gamma radiations

research product