Particle accelerators have evolved over the last decades from simple devices to powerful machines, and are having an increasingly important impact on research, technology and daily life. Today they cover a wide range of applications including material science and medical applications. In recent years, requirements from new technological and research applications have emerged while the number of accelerator facilities in operation, being commissioned, designed or planned has significantly grown. Their parameters (such as the beam energy, beam currents and intensities, and target composition) vary widely, giving rise to new radiation shielding aspects and problems. Particle accelerators must be operated in safe ways to protect operators, the public and the environment. As the design and use of these facilities evolve, so must the analytical methods used in the safety analyses. These workshop proceedings review the state of the art in radiation shielding of accelerator facilities and irradiation targets. They also evaluate progress on the development of modelling methods used to assess the effectiveness of such shielding as part of safety analyses
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