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# Radiation protection for laser-based accelerators

## by Dr. Adolfo Esposito (INFN · Laboratori Nazionali di Frascati LNF)

Thursday, May 16, 2019 from to (Asia/Shanghai)
at IHEP ( A623 )
 Description Abstract: Radiations and particles have many application in several fields of human activities. In addition to their confirmed application to fundamental research they are in fact widely applied in all fields of science, medicine, chemistry, material science and so on. Up to today radiations have been produced by radiation sources (conventional accelerators, X-ray tube, radioactive sources, etc.) with the well-known connected problems of costs, parameters and safety. Since few years, following the development of lasers able to focus ultra-short high intensity pulses onto targets, became possible the generation and acceleration of charged particles, opening new perspectives namely in high energy beam facilities. From than on all practices concerning the use of laser in relativistic and ultra relativistic regime have been regarded as practices with radiation risk and consequently treated. The aim of this presentation is to focus some radiological protection aspects, that a project manager should take into account in designing a facility for lasers from hundreds terawatt to hundred petawatt peak power,focusing mainly licensing requirements, prompt and residual radiation fields, shielding of radiations produced, shielding materials, radiation monitoring, determination of any environmental impact and other specific operational requirements of an “accelerator facility About the speaker: Adolfo Esposito, after his degree in physics in 1976 obtained at the “Sapienza” University in Rome with the highest grades, he joined the LNF radiation protection group, where is still work as Radiation Protection Expert. He is involved from 1981 to today in - Radiation protection around high energy particle accelerators Adone complex (decommissioned in 1993), DAFNE, SPARC and FLAME presently in operation; - Accelerators facilities design; - Technical documentation for license request. He is a member and INFN representative on the general assembly of EURADOS (European Radiation Dosimetry Group) with research activity in the working group WP11 ( High energy radiation field) He is a member of ISO/TC 85/SC2 Radiation Protection with activity for standardization in the field “ Dosimetry for exposure to cosmic radiation in civilian aircraft” He is involved in the Radiation Protection Project - of the STAR ( Southern Europe TBS for Applied Research) facility in Cosenza-South Italy - of EuPRAXIA@SPARC_LAB facility at LNF - of MariX (Multi-disciplinary Advanced Research Infrastructure for the generation and application of X-rays) facility in Milan-North Italy - of ELI NP GBS facility in Bucharest Romania He is qualified in Accelerators facility design (criteria for siting accelerator facility, source terms, other radiation sources, shielding design, interlock and warning devices, control of radioactivation and contamination, radioactive waste management, radiation damage, instruments and measurements, personal dosimetry, dismantling and decommissioning). Gamma and neutron spectrometry, Solid state dosimetry (thermoluminescence, CR 39).  Material: