Second
Workshop on
Utilisation and Reliability of High Power Accelerators
Introduction
The Nuclear Science Committee (NSC) of the OECD Nuclear Energy Agency (NEA) organised a second Workshop on "Utilisation and Reliability of High Power Accelerators". The Workshop was held at Aix-en-Provence, France, from 22 to 24 November 1999, and will be hosted by CEA Cadarache.
R&D activities and construction plans related to high power proton accelerators (HPPAs) are being considered in various countries to promote basic and applied sciences, including accelerator-driven nuclear energy systems (ADS). The performance of such hybrid nuclear systems depends to a large extent on the specification and reliability of the particle accelerator.
The present meeting is a follow-up to the first workshop on "Utilisation and Reliability of High Power Accelerators" that was hosted by JAERI and was held in Mito, Japan on 13-15 October 1998. Many of the questions discussed at that workshop will be further developed at this meeting. In addition, there will be specific presentations devoted to safety, regulatory and technological requirements for the commissioning, operation and restart of hybrid nuclear systems. A list of topics is given below.
The Workshop started in the morning of 22 November and finished in the late afternoon of 24 November. The Workshop was held at Le Centre de Congres, Aix-en-Provence, France.
List of Topics
The meeting consisted of plenary sessions with invited and contributed papers, followed by a summary of the session chairmen, a general discussion and a conclusion at the end of the workshop.
The following topics was covered:
Monday 22 November, 1999
08:00 - 08:30 REGISTRATION OPENING SESSION Chairpersons:
C. NORDBORG08:30 - 08:45 - Welcome A. TOURNYOL DU
CLOS08:45 - 09:00 - Meeting format, scope and objectives M. SALVATORES 09:00 - 09:30 - Key note : "Utilisation and future development of
high power acceleratorsC. DETRAZ SESSION 1 (Invited papers) : Recent developments
and Ongoing Accelerator programs.
Experience of relevance for ADSChairpersons:
A. MUELLER,
Y. CHO09:30 - 10:00 - Joint project of JAERI and KEK for high power
proton acceleratorT. MUKAIYAMA 10:00 - 10:30 - Reliability Considerations in Design of High
Power LinacsG. LAWRENCE 10:30 - 11:00 Break 11:00 - 11:30 - Scientific issues and status of Franco-Italian
collaboration in ADSC. PAGANI 11:30 - 12:00 - Status of the proposal for a Superconducting
Proton Linac at CERNR. GAROBY 12:00 - 12:45 - Design and Status of the SNS project, and
- Availability consideration of the Spallation Neutron
SourceY. CHO 12:45 - 14:15 Lunch SESSION 1 (continued) Chairpersons:
D. WADE,
M. NAPOLITANO14:15 - 14:45 - Initial testing of the LEDA RFQ and related
equipmentD. SCHNEIDER 14:45 - 15:15 - Reliability: A challenge for super-conducting
cavity technologyH. SAFA 15:15 - 15:45 - Overview of ESS; R&D efforts and results I. GARDNER 15:45 - 16:15 Break SESSION 2 : Applications of HPPA Chairpersons:
G. LAWRENCE,
M. OLIVIER16:15 - 16:45 - Experience from SINQ to ADS Development G. BAUER 16:45 - 17:10 - Superconducting RF Cavity R&D with high power
proton accelerator the Joint Project KEK-JAERIK. SAITO 17:10 - 17:35 - Utilisation and Application Plan of the KOMAC
proton acceleratorB-H. CHOI 19:30 - Cocktail-Buffet Dinner to be held at Aix-en-Provence
City Hall22:00 - 23:00 Concert with provencal instruments to be held at the
Saint-Esprit Church
Tuesday 23 November,
1999
09:00 - 09:30 REGISTRATION SESSION 3 : New Developments on the reliability
issueChairpersons:
R. GAROBY,
M. PROME09:30 - 09:50 - Cyclotron, and Fixed Field Alternative Gradient
Synchrotron for Accelerator Driven SystemH. TAKAHASHI 09:50 - 10:10 - Cyclotrons Based Facility to Drive a Demonstrative
Sub-critical ReactorL. CALABRETTA 10:10 - 10:30 - The cyclotron as a possible driver for ADS systems T. STAMMBACH 10:30 - 10:50 - Extrapolating IBA experience of multi-milliampere
cyclotrons to ADS applicationsY. JONGEN 10:50 - 11:20 Break SESSION 3 : (continued) Chairpersons:
P. PAGANI,
J.M. LAGNIEL11:20 - 11:40 - IPHI-RFQ reliability approach R. FERDINAND 11:40 - 12:00 - Peak field studies in the IPHI RFQ P. BALLEYGUIER 12:00 - 12:20 - Reliability of the high power proton source SILHI R. GOBIN 12:20 - 12:40 - Beam diagnostics for high average intensity
accelerator beamP. AUSSET 12:40 - 13:00 - Design Problems of High Power CW Proton Linac:
RFQ and RF SystemI. SHUMAKOV 13:00 - 15:00 Lunch SESSION 4 : Impact of beam trips and fluctuations
on target/systemChairpersons:
G. BAUER,
T. MUKAIYAMA15:00 - 15:20 - Thermal and mechanical impacts on sub-critical
reactor and coolant system components coming
from beam trips and fluctuationsD. WADE 15:20 - 15:40 - Preliminary engineering requirements on
accelerators for ADSB. GIRAUD 15:40 - 16:00 - Fatigue Analysis of the Spallation Module of a High
Power Accelerator Driven Demonstrator SystemY. POITEVIN 16:00 - 16:30 Break SESSION 4 : (continued) Chairpersons:
H. AIT-
ABDERRAHIM,
W. GUDOWSKI16:30 - 16:50 - Preliminary Analysis of Beam-trip and Beam-jump
Events in an ADS PrototypeA. D'ANGELO 16:50 - 17:10 - Structural response of beam window of the Energy
Amplifier Demonstration Facility to beam
interruptions: transient thermo-mechanical
computationsG. FOTIA 17:10 - 17:30 - Thermal and Structural Responses of ADS to
Accelerator Beam TransientsT. TAKIZUKA
Wednesday 24
November, 1999
08:30 - 09:00 REGISTRATION SESSION 5 : Interface technology and
requirementsChairpersons:
G. HEUSENER,
S. JOLY09:00 - 09:25 - Neutron Kinetics Developments of the SIMMER-III
Safety Code for ADS ApplicationW. MASCHEK 09:25 - 09:50 - Dimensioning parameters of operation for an under-
critical core. Constraints related to the acceleratorB. BERNARDIN 09:50 - 10:15 - ADS performance in the safety and reliability
perspectiveA. GANDINI 10:15 - 10:40 - Impact of the LANSCE accelerator beam trips on
pilot molten lead-bismuth target designE. YEFIMOV 10:40 - 11:00 Break SESSION 5 : (continued) Chairpersons:
B. CARLUEC,
V. TEPLIAKOV11:00 - 11:25 - Availability and reliability of the TRISPAL project
accelerator and their incidence on target operationS. JOLY 11:25 - 11:50 - Structural activation, energy deposition and
shielding calculations due to proton beam loss in a
high proton power linear acceleratorJ.Ch. KLEIN 11:50 - 12:15 - Radiological burden associated with accelerator-
driven coreM. SAITO 12:15 - 14:00 Lunch SESSION 6 : Benchmarks Chairpersons:
J.Ch. KLEIN,
S. MONTI14:00 - 14:20 - Proposal/Results (ISTC-559) Y. YEFIMOV 14:20 - 14:40 - Preliminary results from the NEA-NSC benchmark B.C. NA 14:40 - 15:00 - Proposal of Beam Trip Transient Benchmark T. TAKIZUKA 15:00 - 15:30 Break 15:30 - 17:00 SESSION 7 : Summary by Chairpersons and
discussion
(60 min. (6*10') summary + 30 min. discussion)Chairpersons:
J.P. SCHAPIRA,
P. WYDLERCLOSING SESSION Chairperson:
M. SALVATORES17:00 - 17:20 Summary talk J-L LACLARE 17:20 - 17:30 Closing talk Ph. SAVELLI
Proceedings
All presented papers will be included in the proceedings, which will be published by the NEA shortly after the meeting.
Chairperson: M. Salvatores, CEA CadaracheInternational Scientific Advisors
H. Ait-Abderrahim, SCK/CEN, Mol, BelgiumLocal Organising Committee
G. S. Bauer, PSI, Switzerland
B. Carluec, FRAMATOME Lyon, France
T. Gabriel, ORNL, USA
R. Garoby, CERN, Switzerland
G. Gherardi, ENEA Bologna, Italy
H. Gruppelaar, NRG Petten, the Netherlands
E. Gonzales-Romero, CIEMAT, Madrid, Spain
W. Gudowski, RIT Stockholm, Sweden
G. Heusener, FZK/Karlsruhe, Germany
J. M. Lagniel, CEA Saclay, France
G. Lawrence, LANL, USA
H. Mouney, EDF Paris, France
A. Muller, CNRS Orsay, France
M. Napolitano, Univ. of Naples and INFN, Italy
C. Nordborg, NEA/NSC
J.P. Schapira, CNRS Orsay, France
B. Sigg, PSI, Switzerland
H. Takano, JAERI, Japan
F. Venneri, LANL, USA
N. Watanabe, JAERI, Japan
B. Weng, ANL, USAB. Bernardin, CEA Cadarache
B. Carluec, FRAMATOME Lyon
J.M. De Conto, ISN Grenoble
S. Joly, CEA Bruyeres-le-Chatel
J. M. Lagniel, CEA Saclay
R. Lenain, CEA Saclay
A. Tkatchenko, CNRS Orsay