Indagini EPR su legni moderni e antichi

La tecnica EPR e'stata applicata allo studio di legni moderni ed antichi. I legni deteriorati mostrano un segnale EPR molto piu'intenso di quelli non deteriorati. Questo risultato puo' essere spiegato dall'aumento dei radicali liberi nei campioni deteriorati.

Integrated characterization study of building materials in the greek roman theatre of Taormina

ESR study of proton irradiation response of watch glasses.

Double pulse laser induced breakdown spectroscopy applied to natural and artificial materials from cultural heritages. A comparison with micro-X-ray fluorescence analysis

MONTE CARLO SIMULATIONS OF THE RESPONSE OF ESR DOSIMETERS TO NEUTRON BEAMS

Electron Spin Resonance (ESR) spectroscopy is extensively used in gamma photon dosimetry. It relies on the detection of the signal from free radicals (paramagnetic species) produced after sample irradiation. Organic materials, such as alanine and ammonium tartrate, are widely used for dosimeter preparation, thanks to the good photon sensitivity and tissue equivalence of such compounds. However, the low neutron cross section of their nuclei does not make them suitable for neutron dosimetry. Thanks to its very high neutron capture cross section and to the high Linear Energy Transfer of released particles, even small additions of gadolinium will yield large sensitivity enhancements of the dosi…