Particle accelerators are used today for an increasing range of scientific and technological applications. They are very powerful tools for investigating the origin and structure of matter, and for improving understanding of the interaction of radiation with materials, including the transmutation of nuclides and the beneficial or harmful effects of radiation. Particle accelerators are used to identify properties of molecules that can be used in pharmacy, for medical diagnosis and therapy, and for biophysics studies.

Particle accelerators must be operated in safe ways that protect the operators, the population and the environment. New technological and research applications give rise to new issues in radiation shielding. These workshop proceedings review the state of the art in radiation shielding of accelerator facilities and irradiated targets. They also evaluate advancements and discuss the additional developments required to meet radiation protection needs.

Foreword
Executive Summary
SATIF-6 Programme
Session I. Source and Term Related Data - Proton and Ion Accelerators and Spallation Source
-Double-Differential Thick-Target Neutron Yields Bombarded by High-Energy Heavy Ions by T. Nakamura, T. Kurosawa, and T. Kato
-Current Status of the AGS Spallation Target Experiment by H. Nakashima et al
-Dose Rate Measurements behind Different Shielding for 250 MeV Protons on a Thick Copper Target by S. Teichmann, B. Amrien, J. Gerig, W. Hajdas, and H. Temnitzer
-The Biological Shield of a High-Intensity Spallation Source: A Monte Carlo Design Study by I. Koprivnikar and E. Schachinger
-Attenuation Curves in Concrete of Neutrons from 100-400 MeV per Nucleon He C, and Ne Ions by S. Agosteo, T. Nakamura, and M. Silari
-The Effect of a Beam Loss at the PS/nTOF Interface of the CERN PS Complex by M. Silari and H. Vincke
-Radioprotection and Shielding Aspects of the nTOF spallation Source by V. Vlachoudis et al
-Neutron Protection Measurements Relevant to Shielding for Space-Related Activities by L. Heilbronn et al
-Radiation Calculations for the NA60 Experiment by M> Brugger and G. R. Stevenson
-Experimental and Calculated Neutron Production by Deuterons Impinging on Be, C, and U thick Targets ( 17, 20, 28, 80, 160, and 200 MeV) by N. Pauwels, F. Clapier, J. Proust, and M. Mirea
Session II. Measurements and Calculations of Induced Radioactivity
-Induced Radioactivity of Materials by Stray Radiation Fields at an Electron Accelerator by S. H. Roknim, T. Gwisem, J. C. Liu, A. Fasso and S. Roesler
-Production of Radioactie Isotopes in Al, Fe and Cu samples by Stray Radiation Fields aat a Proton Accelerator by H.Vincke, I. Brunner, and M. Huhtinen
-FLUKA Calculations of Radionuclides, Star, and Neutron Fluence Induced Radioactivities of Spallation Products by Various Projectile Ions by A. Puryear, J C. Liu, and S. Rokni
-Induced Radioactivities of Spallation Products by Various Projectile Ions by H Yashima, H. Sugita, T. Nakamura, Y. Uwamino, and A. Fukumura
Session III - Benchmarking - Calculations and Results
-Intercomparison of Medium-Energy Neutron Attenuation in Iron and Concrete by H. Hirayama, Attenuation Length Sub-Working Group in Japan
-Code and Data Benchmarking with the New IAEA Photonuclear Data Library by d. Ridikas, and P. Vertes
-Event Generator Benchmarkig for Proton Radiography Applications by S. G. Mashnik, R. E. Prael, A. J. Sierk, K.K. Gudima, and N.V. Moklov
-Calculation of Neutron Time-of-Flight and Energy Spectra behind Thick Shielding of an Electron Accelerator and Comparison to Experimental Data by S. Roesler, J. C. Liu, and S. H. Rokni
-Measurement of Neutron Energy Spectra behind the Lateral Shield of a High-Energy Electron Beam Dump by T. Taniguchi et al
-Deep Penetration Calcualtion with an 800 MeV Proton Beam Compared with the Shielding Experiment at ISIS by T. Nunomiya, H Iwase, T. Nakamura, and N. Nakao
-Nuclear Photoreactions in the Context of a Nuclear Data Review for Radiation Shielding in Advanced Technology Applications by G. Maino and E. Manapace
Session IV - Dose and Related Issues
-Conversion Coefficients: An Addition to Existing Data by M. Pelliccioni
-The Effect of the Fluence-to-dose Conversion Coefficients upon the Dose Estimation to Cosmic Radiation by V. Mares and H. Schraube
-Feasibility Study on an Active Neutron Dosemeter Basedon Carbon Activation for the Linear Colllider TESLA by A. Leuschner
-Benchmark Calculations with Simple Phantom for Neutron Dosimetry by Y. Sakamoto, S. Tsuda, T. Sato, N.Yoshizawa, and H. Hirayama
-Radiation Levels Experienced by the Insertion Devices of the Third-Generation Synchotron Radiation Sources by P. K. Job and J. Alderman
Session V - Status of Computer Codes, Cross-Sections, and Shielding Data Libraries
-Progress Report on the Available Analytical Tools for Accelerator Shielding Analysis 2002 by H. T. Hunter et al
-Merging the CEM2k and LAQGSM Codes with GEM2 to Describe Fission and Light-Fragment Production by S. G. Mashnik, K. K. Gudima, and A. J. Sierk
-Interaction of Ion Beams with Tissue-Like Media: Simulations with the Shield-HIT MOnte Carlo Transport Code by N. Sobolevsky, I. Gudowska, P. Andreo, D. Belkic, and A. Brahme
-Analytical Method for Multi-Scattered Neutrons in Cavity Used in the DUCT-III Code by K. Hayashi et al
-Development of a General-Purpose Heavy-Ion Transport Code by H. Iwase, K. Niita, and T. Nakamura
-Implementation of Xenon Capture Gammas in FLUKA for TRD Background Calculations by A. Fasso, A. Ferrari, P. R. Sala, and G. Tsiledakis
-Status of MARS Code by N. V. Mokhov
Session VI - Shielding in Medical Accelerator Applications
-Principle of Radiological Shielding of Medical Cyclotrons by B. Mukherjee
-An Overview of Shielding Considerations in Constructing a Proton-Radiation Cancer-Therapy Facility by W. D. Newhauser and U. Titt
List of Participants