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ARW 2017 "Accelerator Reliability Workshop"

Du 15 au 20 octobre 2017 Versailles



Workshop registrations are now open


We are pleased to announce the 6th Accelerator Reliability Workshop, ARW 2017 , which will take place in Versailles, France, from October 15 to October 20, 2017. ARW 2017 is hosted by Synchrotron SOLEIL and supported by ESRF, GANIL, Institut Curie and the French Physics Society. It follows in the tradition of successful workshops started by the ESRF (Grenoble 2002), TRIUMF (Vancouver 2009), iThemba (Cape Town 2011), the Australian Synchrotron (Melbourne 2013) and SNS (Knoxville 2015).

The ARW provides a venue for individuals from accelerator communities worldwide to meet and share their experiences on operating reliable facilities. The workshop fulfills the need to improve information exchange on technical issues and equipment reliability. It facilitates the opportunity for individuals to share their problems and solutions with their peers from other facilities, worldwide.

We look forward to welcoming you at Versailles and meeting you at the workshop.

Rossano Giachino, CERN, Chairman of the International Organizing Committee

Laurent Nadolski, SOLEIL, Chairman of the Local Organizing Committee

ARW general web site (archives of previous workshops available) 


Event Start End
Preliminary programme and session abstract 15 January 2017 March 2017
Sponsor registration January 2017 1 July 2017
Early bird registration end of March 2017  15 June 2017
Abstract submission end of March 2017 15 June 2017 
Hotel reservation with special fee end of March 2017 15 June 2017
Late bird registration 16 of June 2017   15 September 2017
Programme (Contributions Submission) Beginning of July 2017 15 June 2017
Workshop 15 October 2017 20 October 2017





    International Organizing Committee

    • Rossano Giachino, CERN (Switzerland), Chair
    • Kenneth Baggett  JLAB (USA)
    • Lowry Conradie, iThemba LABS (South Africa)
    • George Dodson, Oak Ridge National Laboratory/SNS (USA)
    • Laurent Hardy, ESRF (France)
    • Dan Johnson, FNAL (USA)
    • Don McGilvery, Australian Synchrotron (Australia)
    • Samuel Meyroneinc, Institut Curie (France)
    • Duane Newhart, FNAL (USA)
    • Douglas Preddy, TRIUMF (Canada)
    • Qing Qin, IHEP (China)
    • Paul Sampson, Brookhaven National Laboratory (USA)
    • Masami Torikoshi Heavy Ion Medical Center, Gunma University (Japan)
    • Masaru Takao, JASRI/Spring-8 (Japan)
    • Violeta Toma, TRIUMF (Canada)

    Local Organizing Committee

    • Laurent Nadolski, Synchrotron SOLEIL, Chair
    • Frederic Chautard, GANIL
    • Laurent Hardy, ESRF
    • Deborah Iorio, Synchrotron SOLEIL
    • Jean-François Lamarre, Synchrotron SOLEIL
    • Samuel Meyroneinc, Institut Curie (France)
    • Amor Nadji, Synchrotron SOLEIL
    • Sabine Podgorny, Synchrotron SOLEIL
    • Hélène Rozelot, Synchrotron SOLEIL








    Session Abstracts

    1) Welcome/Introduction to Reliability                                        

    Welcome                                                                                                                    A. Nadji / L. Nadolski

    General introduction to reliability workshop                                                                R. Giachino

    Workshop scope and goals/benefits to attendees.


    2) Availability Tracking and Metrics                                                                        G. Dodson

    Availability is the amount of time a system is working at its full functionality during the time it is required to do so. The key metrics involved in measuring availability are Mean Time Between Failure (MTBF), sometimes referred to as Mean Time to Failure (MTTF), and Mean Time to Repair (MTTR). The methods for tracking availability and setting performance metrics can be different for each laboratory or institute. They are typically measures of success that can allow for facility performance over time and comparisons between facilities. How are they developed for your facility? How do subsystem metrics influence the overall metrics? The values and methods used by different labs should be shown and explained.


    3) Reliability Before Design                                                                                     R. Giachino

    Reliability and availability requirements are taken in consideration long time before the design will actually start. This is a common practice in many industrial applications and is becoming more and more common for new projects in the accelerator domain. A systematic analysis of all machine parameters and scenarios should serve as a basis to establish prediction and calculations to correctly dimension accelerator sub-systems and components. Knowing how to calculate reliability is important, but knowing how to achieve reliability is equally, if not more, important. Reliability practices must begin early in the design process and must be well integrated into the overall product development cycle. The reliability design process is often divided in key activities: 1) Define, 2) Identify, 3) Analyze and Assess, 4) Quantify and Improve, 5) Validate and 6) Monitor and Control.

    This session will try to answer how to fold reliability considerations into the early stages of system design by reviewing best practices at different facilities and comparable industrial installations.

    Topics to be considered:

    • Tools, procedures and practices to calculate and predict system reliability during the design phase.
    • Tools, provide a roadmap that can easily be followed, as well as easily mapped into a Product Development Process (Concept, Design, Assurance, Manufacturing and Launch).
    • What are the main goals of dependability analysis at the different facilities and who is information presented/distributed?
    • How to determine the required dependability goals for a subsystem.
    • Risk assessment (FMEA, STPA...)


    4) Plenary Discussion                                                                                              D. Newhart

    Proposals: Who tracks your reliability and metrics?

    Do you have a dedicated group, or does each group track themselves?

    Application of standards in the particle accelerator community

    Current and future application


    5) Infrastructure                                                                                                       D. Johnson

    Our facilities primarily focus on the accelerators, however infrastructure such as cryogenic plants, water-cooling, water distribution, and electrical power distribution that supports the facility and accelerators affects their reliability.


    6) Accelerator Systems                                                                                            V. Toma

    Major accelerator systems such as RF, power supplies for accelerator components, vacuum systems, often need to modify to improve performance and reliability. Upgrades can be done incrementally or all at once. What are strategies for implementing improvements particularly for new technology? 


    7) Accelerator Control                                                                                             D. Newhart   

    Controls hardware, software, feedback systems, and machine protection can seriously influence reliability. How do we face compatibility issues for systems that control and protect your equipment? How do you evolve or integrate these systems to improve reliability? Possible solutions; continuous deployment, test-driven development, smooth software upgrades (planning and execution) …


    8) Failure Investigation                                                                                           K. Baggett

    Looking at failures and going through the investigation process. The investigation process may be different for various types of failures. Can the process start before a failure by utilizing predictive failure monitoring? We do not want to focus on the results but in the process of getting to those results. We encourage presenting uses case scenarios in this session.

    Root Cause Failure Analysis (RCFA) is a very useful tool for improving    the reliability of equipment or a process. It is a logical, structured, and deductive technique that can identify the causes behind the failure.


    9) Maintenance for High Reliability                                                                        P. Sampson

    Maintenance methods differ facility to facility; strategy will impact on reliability and performance. This session will hopefully highlight, which measures, criteria, strategy, contribute most to improve reliability.

    How do you track it? What are best practices?

    Compare different facilities and different accelerator cultures.


    10) Invited Speaker                         


    11) Poster Session                                                                                                    M. Takao

    Poster presentations


    12) Medical Accelerators                                                                                         S. Meyroneinc/ M. Torikoshi

    The thematic of Particle Accelerators in the Medical Applications are mainly in connection with Radiation Oncology. Solutions for photon or electron irradiation are established solutions provided by major industrial companies. The emergent field of Particle Therapy can be now described along two extreme categories: the facilities managed as those for Large Equipment for Physics and the ones completely managed by industrials. Reliability for the particularities of the medical applications is constrained by different context than research facilities. The reliability must be considered in a strong association with the safety and the medical certification requirements. The fractionation of treatment (a treatment is given in many fractions, then lasting several weeks) leads to the constraint of having a quasi-continuous process along the year. Also the governance and customers are from the "medical" world, where approach of priorities, decisions and management of information is quite different as the ones in the Research facilities.


    13) Insuring Long Term Reliability                                                                           D. Preddy

    How do you ensure long-term reliability? Accelerators and accelerator components deteriorate with age, also from environmental factors such as rust, corrosion, and even radiation. These factors can result in component fatigue, obsolescent issues, and even equipment that is just at the end of life. Dealing with these aging and environmental issues may not be top priority, but they have to be addressed.


     14) Parallel Discussions                                                                                         Not Assigned

    Not yet defined


    15) Strategies for Continuous Operations                                                              L. Hardy

    Stringent reliability requirements are driving the need for perpetual operation. How do you design or adapt systems in situations where even short interruptions to operations are unacceptable? Building facilities using active redundant systems, and automated compensation systems to ensure continuous operations and avoid system shutdown.


    16) Innovation                                                                                                           L. Conradie

    Session to introduce and discuss new ideas that you are using or may want to explore using. What new technologies or tracking methods are being considered?

    Are you using or considering using; robots in a high radiation environment, drones, real time radiation mapping, 3D radiation mapping, and personnel tracking systems for access control? Any other innovating system or future that will increase reliability.


    17) Workshop Highlights and Next ARW                                                              L. Nadolski

    Discussion summary including parallel sessions

    The main outcome of the workshop and lookout for the future.                               G. Dodson

    Closing Remarks (Local Organizing Committee)                                                     L. Nadolski

    IOC Announcing of Next Workshop                                                                          IOC


    Social Events




    Gala Diner

    Tuesday 17th of October

    Les Salons de l'Hôtel de France  

    Visit of SOLEIL

    Wednesday 18th of October (14h-15h30)


    High-technology facility, SOLEIL is both an electromagnetic radiation source covering a wide range of energies (from the infrared to the x-rays) and a research laboratory at the cutting edge of experimental techniques dedicated to matter analysis down to the atomic scale, as well as a service platform open to all scientific and industrial communitievs.

    SOLEIL accelerator complex is composed of a 100 MeV LINAC, a 2.75 GeV BOOSTER and a 3.9 nmrad storage ring. A total of 29 beamlines take their photon beam either from a dipole or an undulator source.


    Important : Not allow to people with pacemakers or defibrillator implants

    Visit of the Château de Versailles (audioguide)
    Friday 20th of October afternoon (15h00)
    Price 25€/person (as an option in the registration fees)
    Famous around the world for its castle and gardens, UNESCO-protected sites in the list of the world heritage of mankind. A new town created by the will of King Louis XIV, Versailles was the seat of the French political power for a century from 1682 to 1789, before becoming the cradle of the French Revolution. After losing its status of royal city, Versailles is also historically known for being the place of signature of numerous treaties such as the Treaty of Paris (1783) which ended the American War of Independence and the Treaty of Versailles signed at the end of the First World War.  
    Visit of the CPO (Proton Therapy Center of Orsay, close to SOLEIL)
    Saturday 21st of October morning
    (Included in the registration fees)

    The Proton Therapy Center of Orsay (CPO)  has treated over 5000 patients since its creation in 1991 and 550 patients for the year 2016 alone. 

    The center consist of a 230 MeV cyclotron and 3 treatments rooms.

    People with ophthalmological and intra-cranial tumors can be treated in seated or lying positions. Tumors located in other parts of the body can also be treated in a dedicated room equiped with an isocentric arm.

    The center carries on also reasearch activities

    The staff is composed of nearly 50 people (radiotherapist, medical physicists, laboratory technicians, engineers)


    Important : Not allow to people with pacemakers or defibrillator implants






    To register ARW 2017 please complete the following Registration Form

    You will receive a confirmation email within 24 hours.

    Event Fee Start End
    Early bird registration 600 € end of March 2017  15 of June 2017
    Late bird registration 650 € 16 of June 2017   15 of September 2017


    The early bird registration deadline is the 15th of June. The registration has to be finalized and the money received by this date, in order to be eligible for the reduced fee. 


      Workshop cancellation policy

      Registrations cancelled  before the 15th of June 2017 will be refunded 90% of the registration fees.

      Registrations cancelled  after the 15th of June 2017 will not be eligible for a refund.


      Cancellation notification must be sent to the conference email for refunds to be eligible.

      Refunds will be processed in the following way:

      A bank transfer will be made to the payee nominated account and all bank charges will be directly deducted from the refund.

      The policy as stated on this page is valid from March 2017.

      Modes of Payment

      Two possible modes of payment are available: bank transfer or Credit Card

      Payment by Credit Card:

      Please follow the instructions at the end of the register form.


      Payment by bank transfer:

       Thank you for transmitting your payment by bank transfer to the following account number with mentioning your name and the workshop reference:


      BNP Paris Bas

      International Bank Account Number (IBAN) : FR76 3000 4006 8400 0100 8245 430

      Code d'identification bancaire (BIC) : BNPAFRPPXXX

      Synchrotron SOLEIL

      Your registration will be final only after receiving your payment.

      Participants List

      A more complete version of the programme and abstract submission form are available on CERN indico: 

      CERN Indico workshop site

      All workshop proceedings will be stored on INDICO website.







      Versailles is a French city located in the department of Yvelines at 17km from Paris. Famous around the world for its castle and gardens, UNESCO-protected sites in the list of the world heritage of mankind. A new town created by the will of King Louis XIV, Versailles was the seat of the French political power for a century from 1682 to 1789, before becoming the cradle of the French Revolution. After losing its status of royal city, Versailles is also historically known for being the place of signature of numerous treaties such as the Treaty of Paris (1783) which ended the American War of Independence and the Treaty of Versailles signed at the end of the First World War.









      Hôtel Pullman Château de Versailles

      2 bis avenue de Paris

      78000 Versailles




      Tél. 01 39 07 46 46


      If you come by car


      If you come by public transport





      Public Tranport Information

      If you come by plane

      2 airports :

      Paris Charles de Gaulle Airport located at 50 Km from Versailles

      Orly Airport located at 30 km from Versailles



      The accomodation is not included in the registration fees.

      Delegates should make their own accommodation bookings directly with the selected hotel. 

      Special workshop rates have been negociated with the hotels until the 15th 2017 of June except Hôtel du jeux de Paume and Hôtel d'Angleterre the 15th of May 2017.

      All Hotels are located less than a 10 minute walk from the Workshop Hotel (Pullman Versailles).



      Pullman Versailles, 2 bis avenue de Paris 78000 Versailles

      Luxury hotel

      How to book: Please Click here

      Double room 192.50€/night

      Breakfast Included

      City Tax 2.50€/night/person

      Free Wifi


      Hôtel de France, 5 rue Colbert 78000 Versailles 

      Charming hotel

      How to book: Please contact the hotel and use ARW 2017 code 

      Double or Twin room 105€/night

      Triple 149€/night

      Breakfast 13€

      City Tax 1.5€/person/night

      Free Wifi


      Hôtel du jeux de Paume, 5 bis rue du Fontenay 78000 Versailles

      Luxury lodge

      How to book: Please contact the hotel and use ARW 2017 code

      Double room : 145€/night

      Triple 165€/night

      Breakfast Included

      Free Wifi

      The orange network does not work well


      Hôtel d'Angleterre, 2 bis rue de Fontenay 78000 Versailles

      Charming hotel

      How to book: Please contact the hotel and use ARW 2017 code

      Double room : 98€/night

      Twins room : 105€/night

      Triple room 135€/night

      Breakfast Included

      Free wifi

      The orange network does not work well



      Mercure Hôtel, 19 rue Philippe de Dangeau 78000 Versailles

      How to book: Please complete the here and send it to the hotel :

      Single room 159€/night

      Double room 166.50€/night

      Breakfast included

      City Tax  1.5€/night/person

      Free Wifi


      IBIS Versailles, 4 avenue du Générale de Gaulle - 78000 Versailles

      How to book: Please use ARW 2017 code and complete the  here and send it to the hôtel:

      Double room : 112.10€/night

      Breakfast and tax included

      Free Wifi



      Others suggestions without special workshop rate:

      Résidence du Berry

      Luxury hotel


      Single room From de 94€ to149 €/night

      Breakfast 14€

      Free Wifi


      Hôtel des Roys

      Charming hotel


      Double room from 90€ to 124 €/night

      Breakfast 12€

      Free Wifi


      Hôtel le Versailles

      Charming hotel


      Classique room from 109 € to 199 €/night

      Breakfast 17€

      Free Wifi





      As organizers of the next edition of the ARW 2017 workshop, we are willing to ask your Company whether you may be interested in sponsoring this event. Different sponsorship opportunities are offered.

      Please contact the Local Organizing Committee:







      Postal address:

      Société civile Synchrotron SOLEIL
      L'Orme des Merisiers
      Saint-Aubin - BP 48

      Geographical address:

      L’Orme des Merisiers
      roundabout of St Aubin
      91190 Saint-Aubin, FRANCE

      Location coordinates:
      Latitude: 48.711922
      Longitude: 2.146156
      intersection between RD306 and D128