Collaborations: ENS: Ecole Normale Suprieure (F), ENEA: Ente Nazionale Energia e Ambiente (I), CERN: Centro Europeo di Ricerca Nucleare (CH), Green Consulting (I)
Duration: 1997 – 2001
In many high energy physic experiments, as well as in nuclear or space applications, the utilisation of plastics in the presence of ionising radiation environments is requested, leading to the necessity of better understand the interaction between polymers and radiation. In the case of CERN LHC experiments, for example, the integrated dose of ionising radiation may reach the level of 3MGy. Most known polymers, especially those polymerizing at room temperature, can be strongly degraded by such a level of radiation, leading to a high failure risk of the same experiments.
The Engineering Materials Center of the University of Perugia is involved from many years in a collaboration with CERN, in the aim of studying the effects of radiation on structural polymeric materials.
The most important properties to study are mechanic strength and elongation at failure. But dimensional stability, outgassing and electric properties can be very important too.
These topics are particularly difficult because many external factors like the presence of particular gas and the temperature during irradiation can have strong influence on the radiation effects on polymeric materials. The radiation rate can also have very important effects.
The results obtained in this research will be used for the realisation of the four big experiments of the LHC particle axcelerator. The plot one of these experiments, ATLAS, is represented in the next page.
F. S. Guarino, C. Hauviller, J. Kenny, High performance radiation resistant adhesive for high energy physics applications, Proceedings of the SAMPE / JEC 1998 International Conference & Exybition, pp 475-486, Paris, April 1998.
F. S. Guarino, Application of experimental techniques to the characterisation of the radiation resistance of polymeric adhesives, CERN Technical Note PPE/TA1/98-1, February 1998.
F. S. Guarino, C. Hauviller, J. Kenny, Radiation Effects on Room Temperature Epoxy Adhesive Molecular Structure, Proceedings of the EPS’98 European Conference on Macromolecular Physics, Morphology and Micromechanics of Polymers, Poster Session, pp 139-140, Merseburg, Germany, September 1998.
F. S. Guarino, C. Hauviller, J. Kenny, High performance radiation resistant adhesive for high energy physics applications. II: Epoxies, Cyanoacrylates and Sinicon Resins, Proceedings of the SAMPE / JEC 1999 International Conference & Exibition, pp 525-535, Paris, April 1999.