At the KN3000 Van de Graaff accelerator in Florence, PIXE analysis of aerosol samples is routinely performed to measure the concentration of elements with Z > 10. In order to allow a complete reconstruction of the aerosol mass, recently we implemented the light element detection by means of in-vacuum Particle Elastic Scattering Analysis (PESA) with 3 MeV protons on particulate matter collected on Teflon filters. PESA with a surface barrier detector (SBD) at a forward angle of 30° was used to estimate the H content; another SBD was placed at 150° backward-angle to determine C, N and O concentrations. Results concerning PM10, PM2.5 and PM1 aerosol fractions, collected on a daily basis over some weeks in a small industrial town near Florence, will be shown.
Atmospheric aerosol characterisation by Ion Beam Analysis Techniques: recent improvements at the Van de Graaff laboratory in Florence / M. CHIARI, P. DEL CARMINE, F. LUCARELLI, G. MARCAZZAN, S. NAVA, L. PAPERETTI, P.PRATI, G. VALLI, R. VECCHI, A. ZUCCHIATTI. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION B, BEAM INTERACTIONS WITH MATERIALS AND ATOMS. - ISSN 0168-583X. - 219-220:1-4(2004), pp. 166-170.
Atmospheric aerosol characterisation by Ion Beam Analysis Techniques: recent improvements at the Van de Graaff laboratory in Florence
G. MARCAZZAN;G. VALLI;R. VECCHIPenultimo
;
2004
Abstract
At the KN3000 Van de Graaff accelerator in Florence, PIXE analysis of aerosol samples is routinely performed to measure the concentration of elements with Z > 10. In order to allow a complete reconstruction of the aerosol mass, recently we implemented the light element detection by means of in-vacuum Particle Elastic Scattering Analysis (PESA) with 3 MeV protons on particulate matter collected on Teflon filters. PESA with a surface barrier detector (SBD) at a forward angle of 30° was used to estimate the H content; another SBD was placed at 150° backward-angle to determine C, N and O concentrations. Results concerning PM10, PM2.5 and PM1 aerosol fractions, collected on a daily basis over some weeks in a small industrial town near Florence, will be shown.Pubblicazioni consigliate
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