$^{222}$Rn contamination mechanisms on acrylic surfaces
Abstract
In this work, the Rn contamination mechanisms on acrylic surfaces have been investigated. Rn can represent a significant background source for low-background experiments, and acrylic is a suitable material for detector design thanks to its purity and transparency. Four acrylic samples have been exposed to a Rn rich environment for different time periods, being contaminated by Rn and its progenies. Subsequently, the time evolution of radiocontaminants activity on the samples has been evaluated with and measurements, highlighting the role of different decay modes in the contamination process. A detailed analysis of the alpha spectra allowed to quantify the implantation depth of the contaminants. Moreover, a study of both and measurements pointed out the Rn diffusion inside the samples.
Keywords
Cite
@article{arxiv.1911.04836,
title = {$^{222}$Rn contamination mechanisms on acrylic surfaces},
author = {M. Nastasi and A. Paonessa and E. Previtali and E. Quadrivi and M. Sisti and S. Aiello and G. Andronico and V. Antonelli and W. Baldini and M. Bellato and A. Bergnoli and A. Brigatti and R. Brugnera and A. Budano and M. Buscemi and A. Cammi and R. Caruso and D. Chiesa and C. Clementi and D. Corti and S. Costa and F. Dal Corso and X. F. Ding and S. Dusini and A. Fabbri and G. Fiorentini and R. Ford and A. Formozov and G. Galet and A. Garfagnini and M. Giammarchi and A. Giaz and M. Grassi and R. Isocrate and C. Landini and I. Lippi and P. Lombardi and Y. Malyshkin and F. Mantovani and S. M. Mari and F. Marini and C. Martellini and A. Martini and E. Meroni and M. Mezzetto and L. Miramonti and P. Montini and M. Montuschi and F. Ortica and A. Paoloni and S. Parmeggiano and N. Pelliccia and G. Ranucci and A. C. Re and B. Ricci and A. Romani and P. Saggese and G. Salamanna and F. H. Sawi and A. Serafini and G. Settanta and C. Sirignano and L. Stanco and V. Strati and C. Tuvè and G. Verde and L. Votano},
journal= {arXiv preprint arXiv:1911.04836},
year = {2019}
}