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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.
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:
- REQUIREMENTS
FOR ACCELERATOR RELIABILITY
- Safety, regulatory
and technological requirements for commissioning, operation and
restart-up
- Power control
in normal and accidental configurations
- Shielding
issues
- Burn-up power
swing control
- Needs for
multipurpose facilities
- R&D IN HPPA
TO IMPROVE RELIABILITY
- Key components
(e.g. RF power production)
- Reduction
of mean time between failures
- Redundancies
and costs
- Compactness,
modulability, flexibility
- Role of required
beam power
- Beam power
control
- Beam losses
minimisation
- Cyclotron
vs. LINAC
- SYSTEM ANALYSIS
AND IMPACT OF BEAM TRIPS/FLUCTUATIONS
- Target/window
systems
- Sub-critical
reactor fuel and components
- System test
facility vs. full scale reference system
- Calculational
benchmarks for a system test facility and its components
- INTERNATIONAL
COLLABORATIONS
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 |
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
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