jean-luc biarrotte cnrs-in2p3 / ipn orsay, france euratom fp7 max project coordinator
DESCRIPTION
Overview of the MAX activities & possible H2020 prospects. Jean-Luc BIARROTTE CNRS-IN2P3 / IPN Orsay, France EURATOM FP7 MAX project coordinator. The MYRRHA linac concept Main MAX achievements Outlook & possible H2020 prospects. The MYRRHA project. MYRRHA Project - PowerPoint PPT PresentationTRANSCRIPT
1J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
Overview of the MAX activities& possible H2020 prospects
Jean-Luc BIARROTTE CNRS-IN2P3 / IPN Orsay, France
EURATOM FP7 MAX project coordinator
2J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
1.The MYRRHA linac concept
2. Main MAX achievements3. Outlook & possible H2020 prospects
3
The MYRRHA projectThe MYRRHA project
MYRRHA Project
Multi-purpose hYbrid Research Reactor for High-tech Applications At Mol (Belgium)
Development, construction & commissioning of a new large fast neutron research infrastructure
to be operational in 2023
ADS demonstrator
Fast neutron irradiation facility
Pilot plant for LFR technology
J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
4J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
MYRRHA as an ADS demonstratorMYRRHA as an ADS demonstrator
Main features of the ADS demo
50-100 MWth power
Highly-enriched MOX fuel
Pb-Bi Eutectic coolant & target
keff around 0.95 in subcritical mode
600 MeV, 2.5 - 4 mA proton beam
Demonstrate the physics and technology of an Accelerator Driven System (ADS) for transmuting long-lived radioactive waste
Demonstrate the ADS concept (coupling accelerator + spallation source + power reactor)
Demonstrate the transmutation(experimental assemblies)
5J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
Proton energy 600 MeV
Peak beam current 0.1 to 4.0 mA
Repetition rate 1 to 250 Hz
Beam duty cycle 10-4 to 1
Beam power stability < ± 2% on a time scale of 100ms
Beam footprint on reactor window Circular 85mm
Beam footprint stability < ± 10% on a time scale of 1s
# of allowed beam trips on reactor longer than 3 sec 10 maximum per 3-month operation period
# of allowed beam trips on reactor longer than 0.1 sec 100 maximum per day
# of allowed beam trips on reactor shorter than 0.1 sec unlimited
MYRRHA proton beam requirementsMYRRHA proton beam requirements
High power proton beam (up to 2.4 MW)
Extreme reliability level
6J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
The ADS reliability requirementThe ADS reliability requirement
In any case, reliability guidelines are needed for the ADS accelerator design:
Strong design i.e. robust optics, simplicity, low thermal stress, operation margins…
Redundancy (serial where possible, or parallel) to be able to tolerate failures
Repairability (on-line where possible) and efficient maintenance schemes
Beam trips longer than 3 sec must be very rare:
To limit thermal stress & fatigue on the target window, reactor structures & fuel assemblies
To ensure a 80% availability – given the foreseen reactor start-up procedures
Present MYRRHA spécifications: <10 beam trips per 3-month operation period (i.e. MTBF > 250h) – derived from the PHENIX reactor operation analysis
Far above present HPPA accelerator performance – MTBF is a few hours at PSI or SNS
Far above present ADS specifications in US or Japan – based on simulations
7
+
Operational injector 1: RF + PS + beam ON
Warm stand-by injector 2: RF+ PS ON, beam OFF (on FC)
Initial configuration
-
The failure is localized in injector
The switching magnet polarity is changed
(~1s)
+
A failure is detected anywhereBeam is stopped in injector 1 by the Machine Protection System @t0
-
Beam is resumed
Injector 2 operational (@t1 < t0 +3sec)
Failed injector 1, to be repaired on-line if possible
Need for an efficient fault diagnostic system !
Strategy for a fault in the injector = parallel redundancyStrategy for a fault in the injector = parallel redundancy
J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
8
A failure is detected anywhere
→ Beam is stopped by the MPS in injector at t0
The fault is localized in a SC cavity RF loop
→ Need for an efficient fault diagnostic system
New V/φ set-points are updated in cavities adjacent to the failed one
→ Set-points determined via virtual accelerator application and/or at the commissioning phase
The failed cavity is detuned (to avoid the beam loading effect)
→ Using the Cold Tuning System
Once steady state is reached, beam is resumed at t1 < t0 + 3sec
→ Failed RF cavity system to be repaired on-line if possible
Failed cavity Failed cavity positionposition
Failed cavity Failed cavity positionposition
Strategy for a fault in the main linac = serial redundancyStrategy for a fault in the main linac = serial redundancy
J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
Listen to F. Bouly
9J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
Layout of the MYRRHA linacLayout of the MYRRHA linac
10J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
Layout of the MYRRHA linacLayout of the MYRRHA linac
11J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
MYRRHA within EURATOM FP7MYRRHA within EURATOM FP7
FREYAGUINEVERE exp.
SCK●CEN(2011-2016)
CDTReactor design
SCK●CEN(2009-2012)
MAXAccelerator design
CNRS(2011-2014)
ARCASTransmutation economics
SCK●CEN (2010-2013)
MAXSIMASafety assesment
SCK●CEN(2012-2018)
MARISAConsortium organisation
& licensing
SCK●CEN(2013-2016)
12J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
http://ipnweb.in2p3.fr/MAX/
Goal: deliver a consolidated reference layout of the MYRRHA linac with sufficient detail and adequate level of confidence in order to initiate in 2015 its engineering design and subsequent construction phase
The MAX project (2011-2014)
11 partners~ 5 M€ total cost~ 10 people FTE
WP1: Global accelerator design
WP2: Injector developments
WP3: Main linac developments
WP4: System optimisation
13J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
1. The MYRRHA linac concept
2.Main MAX achievements
3. Outlook & possible H2020 prospects
14
Production of a reference design for the whole MYRRHA accelerator
o LEBT (presently under construction by SCK+LPSC)
o RFQ + CH booster (KONUS version)
o MEBT
o Main SRF linac (incl. fault-tolerance capabilities)
o HEBT (ISOL deviation + reactor interface)
o Definition of beam time structure & power control strategy
J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
WP1 – Global accelerator designWP1 – Global accelerator design
Listen to R. Salemme
Listen to D. Mäder
Listen to F. Bouly
MYRRHA linac international design review (Brussels, Nov. 2012)
o Very encouraging feedback, list of very valuable recommendations
15
Consolidation of the reference design
o Beam dynamics benchmarking activities Parmteqm/Toutatis → OK
Lorasr/TraceWin → OK
o Start-to-end beam simulation from ion source to target
o First sensitivity analyses and error studies
o Improved design of the injector achieved Lower emittance RFQ
More conservative CH injector design
J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
WP1 – Global accelerator designWP1 – Global accelerator design
Assessments of the MYRRHA buildings layout
Listen to D. Mäder
16
R&D on the MYRRHA 176 MHz RFQ
o 4-rod w/ technology choices optimized for reliable CW operation
o Fabrication and high-power RF test of a 1m-long prototype
o Design of the 4m-long MYRRHA RFQ
J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
WP2 – Injector developmentsWP2 – Injector developments
Listen to D. Mäder
R&D on the MYRRHA CH cavities
o NC and SC CH cavity design incl. ancillaries
o Fabrication of a NC 5-gap CH-prototype
o Fabrication and 1st tests of a SC 7-gap CH-prototype
17
R&D on the MYRRHA 352 MHz Spoke cryomodule
o Design of the MYRRHA spoke 2-gap cavity incl. call for tender for 2 prototypes
o Detailed design of the MYRRHA spoke cryomodule incl. engineering drawings
J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
WP3 – Main linac developmentsWP3 – Main linac developments
Listen to H. Saugnac
R&D on 704 MHz elliptical cavities
o Fabrication and CW conditioning of 2 power couplers
o High-power commissioning of the test cryomodule w/ =0.5 5-cell cavity, 80kW IOT, @2K
o Development of an innovative CTS control system suited for fault recovery scenarios
o First assessments on multipacting
Listen to M. El Yakoubi
Listen to Y. Gomez
Listen to I. Martin Hoyo
18
Reliability analysis
o Development of a reliability model of the SNS accelerator& benchmark w/ SNS logbook data
o Development of the MYRRHA linac reliability model (in work)
J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
WP4 – System optimisationWP4 – System optimisation
Listen to A. Pitigoï
R&D on 700 MHz solid-state amplifiers
o Design of a 32kW SSPA for MYRRHA
o Development & test of a 800W elementary module
Listen to S. Sierra
Conceptual design of the MYRRHA cryogenic plant Listen to T. Junquera
Main lessons learned from the GUINEVERE ADS operation analysis
19J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
1. The MYRRHA linac concept2. Main MAX achievements
3. Outlook & possible H2020 prospects
20J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
OutlookOutlook
Complete MAX scientific programme (project ends 31 July 2014)
o WP1: include new improved injector design in TraceWin & perform MC error studies in nominal case and (at least 1) fault cases
o WP2: perform additional RF tests of RFQ (long test run) and CH prototypes
o WP3: cryomodule operation with DLLRF and innovative CTS control system to assess the feasibility of fault-recovery scenarios
o WP4: run the MYRRHA reliability model & provide recommendations
Prepare a possible follow-up within Euratom H2020
o First H2020 Euratom FISSION call (deadline date: 17 Sept. 2014)
o Output of the preliminary discussions between MAX and SCK*CEN are: Only 1 integrated project with 3 big WPs (reactor safety, liquid LBE R&D, accelerator R&D)
Main goal of the accelerator WP: focus efforts to pursue the development of a full-scale MYRRHA injector demonstrator while trying to sustain the generic R&D developed so far during MAX
21
Possible topics for a future accelerator WP (6M€ total budget oom) - tb further discussed !!o WP.1: construction of a full RFQ demonstrator (IAP?, …?)
o WP.2: 176 MHz RF power amplifier development (SCK?, …?)
o WP.3: Digital LLRF development (IPNO?, …?)
o WP.4: Beam diagnostics (CEA?, IPNO?, …?)
o WP.5: Controls (SCK?, CosyLab?, …?)
o WP.6: Beam simulation code development (CEA?, LPSC?, IPNO?, …?)
o WP.7: LEBT space-charge experiments (LPSC?, CEA?, SCK?, …?)
o WP.8: Injector commissioning (SCK?, IAP?, IPNO?, LPSC?, …?)
o WP.9: Detailed injector reliability analysis (EA?, …?)
o WP.10: SRF spoke R&D – prototyping, multipacting (IPNO?, LPSC?, …?)
o WP.11: SRF CH demonstration with beam (IAP?, …?)
J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
Possible H2020 prospectsPossible H2020 prospects
Listen to C. Joly
Listen to D. Vandeplassche
Listen to M. Plesko
Listen to N. Chauvin & R. Salemme
Listen to D. Uriot & F. Bouly
Additional/new ideas and partners are obviously very welcome !
22J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
These are very preliminary draft ideas !! We are all here to help:
o identifying the necessary R&D topics for the ADS/MYRRHA linac development
o finding synergies (that make sense) amongst different European institutions
& contribute to the final session !!
Clearly, huge R&D investment is still needed to demonstrate the ADS feasibility & prepare for MYRRHA construction.
It would be nice to have a more clear view (before 2015) on:
o how the MYRRHA project will evolve (construction phase?, delayed?, postponed…?)
o the associated possible impact on SCK accelerator R&D roadmap
Listen to L. Medeiros
23J-L. Biarrotte, EuCARD²/MAX workshop on Accelerators for ADS, CERN, 20-21 March 2014.
Thank You for your attention!
http://ipnweb.in2p3.fr/MAX/
http://myrrha.sckcen.be/