Second Workshop on
Utilisation and Reliability of High Power Accelerators

Aix-en-Provence, France,
from 22 to 24 November 1999

 


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.

Background  

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.

Dates and Place of the Workshop

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:

Final Program

Monday 22 November, 1999  

08:00 - 08:30 REGISTRATION
OPENING SESSION Chairpersons:
C. NORDBORG
08:30 - 08:45 - Welcome A. TOURNYOL DU 
CLOS 
08:45 - 09:00 - Meeting format, scope and objectives M. SALVATORES
09:00 - 09:30 - Key note : "Utilisation and future development of 
   high power accelerators
C. DETRAZ
SESSION 1 (Invited papers) : Recent developments 
and Ongoing Accelerator programs. 
Experience of relevance for ADS
Chairpersons:
A. MUELLER, 
Y. CHO
09:30 - 10:00 - Joint project of JAERI and KEK for high power 
   proton accelerator
T. MUKAIYAMA
10:00 - 10:30 - Reliability Considerations in Design of High 
  Power Linacs
G. LAWRENCE
10:30 - 11:00 Break
11:00 - 11:30 - Scientific issues and status of Franco-Italian 
   collaboration in ADS
C. PAGANI 
11:30 - 12:00 - Status of the proposal for a Superconducting 
   Proton Linac at CERN
R. GAROBY
12:00 - 12:45 - Design and Status of the SNS project, and
- Availability consideration of the Spallation Neutron 
   Source
Y. CHO
12:45 - 14:15 Lunch
SESSION 1 (continued) Chairpersons:
D. WADE,
M. NAPOLITANO
14:15 - 14:45 - Initial testing of the LEDA RFQ and related 
   equipment
D. SCHNEIDER
14:45 - 15:15 - Reliability: A challenge for super-conducting 
   cavity technology
H. 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. OLIVIER
16:15 - 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-JAERI
K. SAITO 
17:10 - 17:35 - Utilisation and Application Plan of the KOMAC 
   proton accelerator
B-H. CHOI
19:30 - Cocktail-Buffet Dinner to be held at Aix-en-Provence 
   City Hall
22:00 - 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 
issue
Chairpersons:
R. GAROBY,
M. PROME
09:30 - 09:50 - Cyclotron, and  Fixed Field Alternative Gradient 
   Synchrotron for Accelerator Driven System
H. TAKAHASHI
09:50 - 10:10 - Cyclotrons Based Facility to Drive a Demonstrative 
   Sub-critical Reactor
L. 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 applications
Y. JONGEN
10:50 - 11:20 Break
SESSION 3 : (continued) Chairpersons:
P. PAGANI,
J.M. LAGNIEL
11:20 - 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 beam
P. AUSSET
12:40 - 13:00 - Design Problems of High Power CW Proton Linac: 
  RFQ and RF System
I. SHUMAKOV
13:00 - 15:00 Lunch
SESSION 4 : Impact of beam trips and fluctuations 
on target/system
Chairpersons:
G. BAUER,
T. MUKAIYAMA
15:00 - 15:20 - Thermal and mechanical impacts on sub-critical 
   reactor and coolant system components coming 
   from beam trips and fluctuations
D. WADE
15:20 - 15:40 - Preliminary engineering requirements on 
   accelerators for ADS
B. GIRAUD
15:40 - 16:00 - Fatigue Analysis of the Spallation Module of a High 
   Power Accelerator Driven Demonstrator System
Y. POITEVIN
16:00 - 16:30 Break
SESSION 4 : (continued) Chairpersons:
H. AIT-
ABDERRAHIM,
W. GUDOWSKI
16:30 - 16:50 - Preliminary Analysis of Beam-trip and Beam-jump 
   Events in an ADS Prototype
A. D'ANGELO
16:50 - 17:10 - Structural response of beam window of the Energy 
   Amplifier Demonstration Facility to beam 
   interruptions: transient thermo-mechanical 
   computations
G. FOTIA
17:10 - 17:30 - Thermal and Structural Responses of ADS to 
   Accelerator Beam Transients
T. TAKIZUKA

Wednesday 24 November, 1999

08:30 - 09:00 REGISTRATION
SESSION 5 : Interface technology and 
requirements
Chairpersons:
G. HEUSENER,
S. JOLY
09:00 - 09:25 - Neutron Kinetics Developments of the SIMMER-III 
   Safety Code for ADS Application
W. MASCHEK
09:25 - 09:50 - Dimensioning parameters of operation for an under-
   critical core. Constraints related to the accelerator
B. BERNARDIN
09:50 - 10:15 - ADS performance in the safety and reliability 
   perspective
A. GANDINI 
10:15 - 10:40 - Impact of the LANSCE accelerator beam trips on 
   pilot molten lead-bismuth target design
E. YEFIMOV
10:40 - 11:00 Break
SESSION 5 : (continued) Chairpersons:
B. CARLUEC,
V. TEPLIAKOV
11:00 - 11:25 - Availability and reliability of the TRISPAL project 
   accelerator and their incidence on target operation
S. JOLY
11:25 - 11:50 - Structural activation, energy deposition and 
   shielding calculations due to proton beam loss in a 
   high proton power linear accelerator
J.Ch. KLEIN
11:50 - 12:15 - Radiological burden associated with accelerator-
   driven core
M. SAITO
12:15 - 14:00 Lunch
SESSION 6 : Benchmarks Chairpersons:
J.Ch. KLEIN,
S. MONTI
14:00 - 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. WYDLER
CLOSING SESSION Chairperson:
M. SALVATORES
17:00 - 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.

Workshop Organisation
Chairperson: M. Salvatores, CEA Cadarache

International Scientific Advisors

H. Ait-Abderrahim, SCK/CEN, Mol, Belgium
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, USA
Local Organising Committee
B. 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