Over the last 50 years particle accelerators have evolved from simple devices to powerful machines, and will continue to have an important impact on research, technology and lifestyle. Today, they cover a wide range of applications, from television and computer displays in households to investigating the origin and structure of matter. It has become common practice to use particle accelerators for material science and medical applications.
In recent years, requirements from new technological and research applications have emerged, giving rise to new radiation shielding aspects and problems. These workshop proceedings review recent progress in radiation shielding of accelerator facilities, evaluating advancements and discussing further developments needed with respect to international co-operation in this field.

Executive Summary
Session I: Source Term and Related Data - Electron Accelerator
-Dose Measurements of Bremsstrahlung-Produced Neutrons from Thic Targets at the Advanced Photon Source by P. K. Job, M. Pisharody and E. Semones
-Further Measurements of Bremsstrahlung from the Insertion Device Beam Lines of the Advanced Photon Source by P. K. Job, M. Pisharody, and E. Semones
Session II: Source Term and Related Data - Proton and Ion Accelerator
-A Systematic Experimental Study of Thick-Target Neutron Yield for High Energy Heavy Ions by T. Nakamura, T. Kurosawa, N. Nakao, T. Shibata, Y. Uwamino, and A. Fukumura
-Thin and Thick Target Benchmark Investigations to Validate Spallation Physics Models by D. Filges, R.-D. Neef, NESSI Collaboration
-Radiation Shielding at the Heavy Ion Research Facility in Lanzhou (HIRFL) by H. Zheng, Y. Su
Session III: Shielding Design Problem on High Intensity Medium Energy Accelerators and Target Facilities
-Methods to Calculate Spallation Source Shields, Comparison with Experiments and Application to ESS by H. Schaal, D. Filges, and G. Sterzenbach
-Shielding Design of the Spallation Neutron Source (SNS) by J. O. Johnson
-Shielding Design of the Spallation Neutron Source in Japan by M. Kawai
-Shielding Design of RIKEN RI Beam Factory by Y. Uwamino and N. Fukunishi
Session IV: Shielding Benchmark Calculations and Results
-BEEP: The Benchmark Exercise for Electrons and Photons by A. Bielajew, W. P. Ballard, D. E. Cullen, A. Fasso, D. Filges, H. Hirayama, H. G. Hughes III, I. Kawrakow, R. P. Kensek, B. L. Kirk, F. Salvat, S. M. Seltzer, and P. Vaz
-Intercomparison of Medium-Energy Neutron Attenuation in Iron and Concrete by H. Hirayama, Attenuation Length Sub-Working Group
Session V: Miscellaneous Topics
-Radioactive Ion Beam Facilities: New Thick Targets, Highlights and Challenges by F. Clapier, N. Pauwels and J. Proust
-Radiation Weighting Factors and Conversion Coefficients for High-Energy Radiation by M. Pelliccioni
-Overview of Fluence to Dose Equivalent Convesion Cooefficents for High-Energy Radiation: Calculational Methods and Results of Two Kinds of Effective Doses per Unit Particle Influence by S. Iwai, T. Uehara, O. Sato, N. Yoshizawa, S. Furihata, S. Takagi, S. Tanaka, and Y. Sakamoto
-Preliminary Study on Narrow Beam Dosimetry by S. Iwai, T. Uehara, O. Sato, N. Yoshizawa, S. Takagi, S. Tanaka, and Y. Sakamoto
-Comparison of Computer Code Calculations for the ICRU Slab Phantom by N. Yoshizawa, N. Nakao, Y. Sakamoto, and S. Iwai
Session VI: Present Status of Computer Code and Cross-Section and Shielding Data Libraries
-Progress Report on the Collection of Computer Codes and Data Sets for Accelerator Shielding Analysis by J. B. Manneschmidt, H. T. Hunter, B. L. Kirk, E. Sartori, P. Vaz
-PENELOPE: Taking Advantage of Class II Simulation by F. Slavat, J. M. Fernandez-Varea, N. Leinfellner, J. Sempau, and A. Sanchez-Reyes
-Recent Developments, Benchmarking and Status of the MARS Coding System by N. V. Mokhov
-Atlas of Approximations of Excitation Functions of Proton-Nucleus Reactions by V. G. Semenov, N. M. Sobolevsky