High power proton accelerators are being studied for their potential use in the transmutation of nuclear waste. The Second Workshop on Utilisation and Reliability of High Power Proton Accelerators, organised by the NEA Nuclear Science Committee, placed special emphasis on accelerator-driven system (ADS) concepts comprising a sub-critical reactor coupled with a high power accelerator.
The information provided in these proceedings will primarily be of interest to scientists working on accelerator-driven systems, but also to those involved in the construction of high power accelerators.

Foreword
Executive Summary
Session I. Recent Developments and Ongoing Accelerator Programmes: Experience for the Relevance of ADS
-Joint Project of JAERI and KEK for High Power Proton Accelerator by T. Mukaiyama
-Reliability Considerations in Design of High Power Linacs by G. Lawrence
-Scientific Issues and Status of Franco-Italian Collaboration on the SC Linear Accelerator for ADS by C. Pagani
-Status of the Proposal for a Superconducting Proton Linac at CERN by R. Gabory and M. Vretenar
-Overview and Status of the SNS Project by Y. Cho and M.M. White
-Reliability/Availability Considerations for SNS by Y. Cho
-Initial Testing of the LEDA RFQ and Related Equipment by J. D. Schneider
-Reliability of Superconducting Cavities by H. Safa
-Overview of ESS, R&D Efforts and Results by I.S.K. Gardner
Session II. Applications of HPPA
-Experience and Features of SINQ Relevant to ADS by G. S. Bauer
-Superconducting for RF Cavity R&D with High Power Proton Accelerator for the Joint Project JAERI/KEK by K. Saito
-Utilisation and Application Plan of the KOMAC Proton Accelerator by B.H. Choi, P.K. Joo, J. H. Lee, Y. S. Cho, Y.K. Kim, J.M. Han, J. H. Ha, H. E. Ahn, T. Y . Song, W. S. Park, and C. K. Park
Session III. New Developments on the Reliability Issue
-Induction of Fixed-Field Alternating Gradient (IFFAG Synchrotron for an Accelerator-Driven System by H. Takahashi
-An Accelerator Complex to Drive a Demonstrative Subcritical Reactor by L. Calabretta, D. Rifuggiato, G. Lo Friddo, and S. Schepounov
-The Cyclotron as a Possible Driver for ADS Systems by T. Stammbach, S. Adam, T. Blumer, A. Mezger, P. A. Schmelzback, and P. Sigg
-Extrapolating IBA Experience of Multi-Milliampere Cyclotrons to ADS Applications by Y. Jongen
-Accelerator as a Repairable System by C. M. Piaszczyk
-IPHI RFQ Reliability Approach b R. Ferdinand and R. Duperrier
-Reliability of the High Power Proton Source SILHI by R. Gobin, P-Y. Beauvais, P-E. Beranudin, G. Charruau, R. Ferdinand, Y. Gauthier, F. Harrault, J-M. Lagniel, and P-A. Leroy
-Beam Diagnostics for High Intensity Accelerators by P. Ausset, P. Menny, B. Monsanglant, B. Pottin, P-Y Beauvais, A. France, R. Gobin
-Design Problems of High Power CW Proton Linac: RFQ and RF System by B.P. Martin, G.I. Batskikh, V. M. Belugin, B.I. Bondarev, A.P. Durkin, YuD. Ivanov, A. P. Fedotov, I.V. Shumakov, N. I. Uksusov
Session IV. Impactof BeamTrips and Fluctuations on Target/Systems
-Estimates of Thermal Fatigue Due to Beam Interruptions for an ALMR-type ATW by F. E. Dunn, D.C. Wade
-Preliminary Engineering Requirements on Accelerators for ADS by B. Giraud, L. Cinotti, and B. Farrar
-Fatigue Analysis of the Spallation Module of a High Power Accelerator-Driven Demonstrator System by Y. Poitevin, R. Enderle
-Preliminary Analysis of Beam Trip and Beam Jump Events in an ADS Prototype by A. D'Angelo, G.Bianchini, and M. Carta
-Structural Response of the EADF Target Beam Window to Beam Interruptions: Transient Thermo-Mechanical Computations by G. Fotia, C. Aragonese, V. Bellucci, S. Buono, L. Maciocco, V. MOreau, G. Siddi, L. Sorrentino
-Responses of ADS Plant to Accelerataor Beam Transients by T. Takizaka, H., Oigawa, T.Sasa, K. Tsujimoto, K. Nishihara, H. Takano, M. Hishida, M. Umeno
Session V. Interface Technology and Requirements
-Neutron Kinetics Developments of the SIMMER-III Safety Code for ADS Application by A. Rineiski, E. Kiefhaber, B.Merk, W. Maschek, and M. Flad
-Dimensioning Parameters of Operation for an Under-Critical Core: Constraints Related to the Accelerator by B. Bernardin
-ADS Performance from the Safety and Reliability Perspective by A. Gandini
-Impact of the LANSCE Accelerator Beam Trips on Pilot Molten Lead Bismuth Target Design by E. Yefinov. M. Leonchuk, E. Pylchenkov, Z. Sivak, S. Grishhak