IEFC Workshop 2010

10 Feb 2010, 09:00 → 12 Feb 2010, 16:30 Europe/Zurich

30/7-018 - Kjell Johnsen Auditorium (CERN)

Paul Collier (CERN), Volker Mertens (CERN)

LHC Injectors and Experimental Facilities Committee 2010 Workshop

Wednesday, 10 February

1 Introduction and Welcome

Speaker: Paul Collier

Operation in 2009 and outlook for 2010

2 Review of operation in 2009

An overview will be given of the 2009 operation within the complete CERN accelerator complex (excluding the LHC). The year proved very successful with the majority of physics user expectations fulfilled, even surpassed, and culminating in the LHC restart at the end of November. The ion accelerator chain could also celebrate the first ion beam injected into the LHC on 23rd of October 2009. This presentation will expose the principal faults that occurred during the 2009 accelerator complex operation, mention operational statistics and will attempt to identify weak points in the chain. Possible improvements in view of the important year ahead running the LHC in parallel with the usual physics program will be highlighted.

Speaker: Bettina Mikulec

Slides IEFC_workshop_BM.pdf IEFC_workshop_BM.pptx

3 Beam requirements and operational scenarios in 2010

2010 will be another challenging year for the CERN accelerator complex. The clear priority will be the LHC with a run from late February through to November. The LHC schedule includes a four week ion run at the end of the year. The complex will also have to deliver beam to serve the rich non-LHC physics program. The year’s requirements are enumerated and the demanded beam detailed. The 2010 schedules will be presented and the provisions for machine development and technical stops outlined.

Speaker: Rende Steerenberg

Slides beams-2010-v3.pdf beams-2010-v3.pptx

10:30 coffee break

4 Beam requests vs what can be delivered (p and ions)

The demand for particles, protons and ions, from the different facilities is increasing and meeting the requirements set by our clients becomes more and more a challenge, even more now the LHC is online too. In order to comply as much as possible to the committed physics program, the user requirements are listed together with a brief analysis on how they could be met. From this analysis a set of basic super cycles are proposed for the 2010 run, which together with the accelerator schedule will lead to an overview of what the different facilities can deliver. At the same time this will identify the shortfalls in number of particles or cycles. At the end of the presentation an attempt will be made to mention some points of possible improvement that could potentially contribute to a better use of the facilities or an increase in the number of protons for certain users.

Speaker: Rende Steerenberg

Slides Beam_Requests_vs_What_Can_Be_Delivered.pdf Beam_Requests_vs_What_Can_Be_Delivered.pptx

5 Status and prospects for MTE

The results achieved during the Multi-Turn Extraction commissioning in 2009 will be presented and discussed in detail. A number of criteria still have to be fulfilled before considering this beam fully operational. The steps to take in this direction will be reviewed. Emphasis will be given on the lessons learnt, and the studies to be carried out along with a strategy for 2010 will be proposed. The roadmap to achieve the final goal of an operational MTE will be also presented.

Speaker: Simone Gilardoni

Slides MTE_comm_status_IEFC10.key MTE_comm_status_IEFC10.pdf

6 Status and plans for INCA

InCA is the renovation project of the high-level controls of the PS complex. Under development since early 2008, the system is regularly deployed in operation during dedicated MDs in order to validate the latest developments and steer the next phases. This original approach proved itself fruitful as it produced important results in the last two years. In addition to the MDs, a simplified version of the system was successfully deployed for the LEIR’09 run. The next goal is to deploy the system on the PS machine mid 2010. While we will strive to keep the deployment’s negative effects on the PS operation to the minimum, it is clear that this will not be transparent. Furthermore, the system will bring new features and performance improvements fulfilling long lasting requests such as a solution to the limited number of timing users.

Speaker: Stephane Deghaye

Slides

• IEFC'10_-_InCA_Status.pdf
• IEFC'10_-_InCA_Status.pptx
• IEFC'10_-_InCA_Status.pptx

12:30 lunch break

Accelerator hardware, controls and technical infrastructure

7 Ongoing consolidation of magnets and magnet accessories

The magnets installed in the CERN accelerator complex provide impressively high standards of reliable operation thanks to a tight program of preventive maintenance and consolidation: in total during 2009 the machine down-time due to magnet failures was below 100 hours. However the risk of approaching “end of life” situations, not signaled by observable precursors, increases with time and the maintenance plans have to be adapted to the magnet “age”. The talk, summarizes the regular maintenance strategy of the normal conducting magnets of the CERN accelerator complex, with emphasis on actions to reinforce this program considering the age of the machines. Furthermore an overview of the spare strategy is given, and directions for possible new consolidation programs are outlined.

Speaker: Davide Tommasini

Slides IEFC-Workshop.pdf IEFC-Workshop.pptx

8 Progress with POPS

POPS is the new power system for the PS main magnets. It will replace the present rotating machine and its associated auxiliaries. A contract with CONVERTEAM (FR) was placed in December 2007 and it was planned to start its commissioning in December 2009. Unfortunately, the shutdown 2009-2010 had to be suppressed to serve LHC. The reception tests with Converteam will be done in January 2010 on a dummy load, representing 1/10 of the nominal load but at full current (6kA). The final tests on the PS magnets will be done during the next shut down 2010-2011. POPS shall be operational in April 2011.

Speaker: Jean-Paul Burnet

Slides Progress-with-POPS_IEFC-workshop_feb-2010.pdf Progress-with-POPS_IEFC-workshop_feb-2010.pptx

9 Critical overview of RF equipment in the LHC injector chain

The RF equipment of the LHC injector chain (Linac2, Linac3, PSB, LEIR, PS and SPS) is considered with scrutiny in view of its reliable operation. We analyse present and past failures and weaknesses of the different RF systems and indicate planned, started or implemented remedies. We equally try to anticipate future risks that may jeopardize reliable operation and give strategies for their mitigation.

Speaker: Erk Jensen

Slides IEFC_WS_10-02-10_RF_Jensen.pdf IEFC_WS_10-02-10_RF_Jensen.pptx

15:30 coffee break

10 Status and progress of ACCOR

This talk will present the achievements made in 2009 in the context of the Accelerator Control System Renovation Project (ACCOR) for 2009, in particular concerning the integration and validation of new front-end hardware and software technologies and core control system building blocks. The second part of the talk will concentrate on the planning aspects, and on the strategy that will be used to start operational deployments in 2010, in collaboration with the equipment groups.

Speaker: Marc Vanden Eynden

Slides AccorIEFC.pdf AccorIEFC.pptx

11 Outstanding work and possible worries with electrical distribution cables

2009 was for EN/EL a new departure; group was repowered, 15 more people join the group and a consolidation budget of 40 MCHF was allocated to update the distribution network. EL is now able to deal with more than the day to day business; EL is focused on training new people and is working on the design of the 2015/2020 distribution network. In 2009, selectivity has been improved in several locations, link between BE and BE9 substations has been doubled in order to increase redundancy. 10kM of power cables has been purchased for SPS consolidation and Fiber optic network has been consolidated. In 2010, consolidation of SPS network will be continued by implementing new substations in BA4 and BA5 and by replacing power cables between BA5 and BA6. Moreover protection relays will be replaced in some key points (66kV, …) and a study to extend the safety network (Diesel) to every point of SPS and North Area will be run.

Speaker: Francois Duval

Slides IEFC_consolidation_FD_100210.pdf IEFC_consolidation_FD_100210.pptx

12 Reliability of the cooling and ventilation installations for the injectors

The presentation, after a brief summary of the 2009 run from the CV point of view, will focus on several major improvements and concerns. Such as the optimization of the water treatment that has shown good result during the last years. The present status of the control system for the PS and SPS cooling stations and the plan for the future modification will be presented. Several other improvements will also be explained: upgrade of the leak detection, the demineralized water production for all CERN cooling plants and PS ventilation system and the chilled water circuit. Since some of these issues will become critical in the short future, a possible consolidation plan will be presented.

Speaker: Serge Deleval

Slides Reliability_of_the_cooling_and_ventilation_installations_for_injectors-lt.pdf Reliability_of_the_cooling_and_ventilation_installations_for_injectors-lt.pptx

Thursday, 11 February

High intensity beams, radiation and safety issues

13 Radiological Status and Trends of Injectors & Experimental Facilities

The status of the beam loss studies on in the injectors is presented, in particular reviewing the first full year of CNGS operation. A number of issues which appeared during the run, like for example the high radiation levels observed in the Linac3 building and the expected and feared increaseof machine irradiation, will be discussed in detail. The presentation will also focus on possible solutions to alleviate the impact of the losses on the machine irradiation with a discussion about future operation modes, like in the case of the MTE extraction at the PS, and on a longer time scale, the PSB operation with the Linac4.

Speaker: Simone Gilardoni

Slides Rad_IEFC_gilardoni.key Rad_IEFC_gilardoni.pdf

14 Monitoring Systems for Radiation Protection

The levels of ionising radiation around CERN facilities are currently monitored by two systems, ARCON (conceived for the LEP) and RAMSES the state of the art system for the LHC, CNGS and CTF3. Needs of monitoring systems for radiation protection evolve with CERN activities. The talk will present the strategy chosen to replace ARCON with RAMSES and will put the accent on availability, maintainability and durability of monitoring systems for radiation protection.

Speaker: Daniel Perrin

Slides Monitoring_Systems_for_RP.pdf Monitoring_Systems_for_RP.pptx

15 Radiation Protection during design, operation and dismantling of Target Areas

At CERN, various production targets for secondary beams of particles or of atomic ions are in operation. The forced interactions of the primary beam with the target causes a higher degree of activation of the target system, of the surrounding structures and soil and of the air ventilating the area. The activation and the related ambient dose rate must be taken into account during maintenance, dismantling and for environmental protection.

Speaker: Thomas Otto

Slides ThomasOtto.pdf ThomasOtto.ppt

10:30 coffee break

16 Workplaces in Radiation Areas

An up-date on CERN’s radiation protection rules and procedures and their impact on accelerator operation and maintenance will be discussed. The radiological risks at representative workplaces in CERN’s radiation areas and examples of adequate maintenance scenarios will be presented. Examples for the ALARA approach in general as well as for optimized design and handling in particular will be given.

Speaker: Heinz Vincke (Unknown)

Slides Workplaces_in_Radiation_Areas.pdf Workplaces_in_Radiation_Areas.pptx

17 Quality Assurance applied to Accelerator Safety

The aim of Quality Assurance is to provide all stakeholders with the possibility to acquire the confidence that a given process or product meets a set of expected characteristics. Quality Assurance applied to accelerator Safety requires the identification of the expected safety characteristics, as well as the identification of Safety stakeholders with their respective roles. Quality Assurance in accelerator Safety is then explained through two examples: Some key equipment (EIS) are assigned a Safety function to stop the beam to ensure personnel Safety in case of intrusion or during a regular access. We show how a structured Safety file can contribute to providing Quality Assurance regarding these key equipment (EIS). In preparation of and during maintenance operations on radioactive equipment or in a radioactive environment, the application of the ALARA procedure is documented in a “Dossier d’Intervention en Milieu Radioactif”. The process and the document itself are presented to show how the confidence that the process respects the basic radiation protection rules at all stages can be shared between intervening parties, management and Safety responsible.

Speaker: Magali Gruwe

Slides IEFC_QualityAssurance_100211_[Compatibility_Mode].pdf IEFC_QualityAssurance_100211.ppt

12:00 lunch break

Experimental areas and facilities

18 East Area Renovation

An update of the East Area renovation project will be given, following the presentation of a conceptual design in the 2009 workshop. The new layout addresses the difficult magnet situation in the East Area in general and aims at significantly improving the radiation aspects in the hall. More precise shielding requirements and resource estimates will be provided.

Speaker: Lau Gatignon

Slides RenovationofEastAreaV2.pdf RenovationofEastAreaV2.pptx

19 AD preparation

Status report on the ongoing projects for AD: AEGIS and needs from the experiments for the 2010 run. The present ideas on the accomodation of the new ELENA ring will be shown addressing the procs and cons of each solution.

Speaker: Tommy Eriksson

Slides AD_IEFC_2010.pdf AD_IEFC_2010.pptx

20 Towards smooth operations for the SPS North Area that remains as popular as ever

The talk will make the point on the status of the rennovation programs for the SPS North Area. What has been rennovated so far and what remains to be done, including budget, resources and possible timescale.

Speaker: Alessandro Masi

Slides NorthArea_IEFC_2010.pdf NorthArea_IEFC_2010.pptx

15:30 coffee break

21 Upcoming experiments at SPS. What to expect and the impact on operations

The talk will summarize the experiments and proposals that are in the pipeline of approval. Summary with what is know today of possible impact for the sector and discuss the approval path and resources and safety accounting.

Speaker: Edda Gschwendtner

Slides IEFCworkshop_2010-02-11_Edda_Gschwendtner.pdf IEFCworkshop_2010-02-11_Edda_Gschwendtner.ppt

22 Towards reviving the PS Neutrino Beam - what it really involves

In the recent New Opportunities in the Physics Landscape at CERN, and Neutrino Strategy workshop organized at CERN in 2009, a neutrino experiment proposal followed by a letter of intent as presented where the revival of a PS originated neutrino beam to study sterile neutrinos was proposed. The idea is to reuse the neutrino beam infrastructure made in 1980's for the neutrino beam from PS to BEBC and novel detectors as that of LArgon TPC. This presentation will give an overview of the experimental facility lay-out and the challenging requirements. The PS beam production together with extraction, beam transport and secondary beam production will be addressed.

Speaker: Rende Steerenberg

Slides PS_TT7_Neutrinos.pdf PS_TT7_Neutrinos.pptx

23 The HiRadMat Project

The High Radiation to Materials (HiRadMat) facility at CERN/SPS is designed to allow testing of accelerator components, in particular those of LHC, to the impact of high-intensity pulsed beams. It will be opened to all CERN users and external groups as all other experimental areas and test beams. The facility is also part of the EUCARD FP7 program as open access, which aims at supporting and encouraging participation of EU collaborators interested in tests of materials for accelerator or detector R&D. The installation of the dedicated line and experimental area in TCC6 and in the old WANF area (TNC tunnel) is planned during the 2010-2011 shutdown. The presentation following a brief overview of the project will focus on the status and prospects for 2010 activities and next shutdown. In particular, the preparations for the WANF dismantling and the installation of the new facility will be presented. Finally, the issues concerning the operation of the facility: beam time and handling of the users will be discussed.

Speaker: Sebastien Evrard

Slides se-IEFC_11Feb10_v2.pdf se-IEFC_11Feb10_v2.pptx

Friday, 12 February

Long‐term consolidation of the LHC injector complex

Long‐term consolidation of the LHC injector complex
How to keep the proton injector chain (LINAC4, PSB PS & SPS) running for another 25 years

24 Session Introduction

This talk will introduce the session and outline the boundary conditions that have been set for the following presentations. SPL and PS2 are planned to replace the current LHC pre-injectors (LINAC4, PSB & PS). However, as SPL and PS2 will probably not be on-line and fully operational before early to mid-2020’s, the existing machines will have to run for at least another 12-15 years. This session will examine what actions should be envisaged to extend this lifetime for a further 10 years until the 2030’s, which is the expected lifetime of the LHC. Major upgrades of the Accelerator performance are not included. There will not be any written papers, but the presentations will be stored as record of the proceedings.

Speaker: Simon Baird

Slides Long-term_Consolidation_of_the_LHC_Injector_Complex.pdf Long-term_Consolidation_of_the_LHC_Injector_Complex.ppt

25 How to ensure reliable LINAC4 operation for 25 years

This talk will present the measures that have been taken to ensure reliable LINAC4 operation for 25 years. Reference will be made to the experience gained from the operation of LINAC2.

Speaker: Maurizio Vretenar

Slides Linac4_IEFC_2010.pdf Linac4_IEFC_2010.pptx

26 How to ensure reliable PSB operation for 25 years

This talk will review the potential consolidation measures that would be necessary to ensure continued reliable operation of the PSB for a further 25 years. Where possible approximate time and resource estimates will be given.

Speaker: David McFarlane

Slides Booster25.pdf Booster25.pptx

10:15 coffee break

27 How to ensure reliable PS operation for 25 years

This talk will review the potential consolidation measures that would be necessary to ensure continued reliable operation of the PS for a further 25 years. Where possible approximate time and resource estimates will be given.

Speaker: Raymond Brown

Slides

• PS+25years_R_Brown.pdf
• PS+25years_R_Brown.ppt
• PS+25years_R_Brown.ppt

28 How to ensure reliable SPS operation for 25 years

This talk will review the potential consolidation measures that would be necessary to ensure continued reliable operation of the SPS for a further 25 years. Where possible approximate time and resource estimates will be given.

Speaker: vinod chohan

Slides IEFC_WS_SPS_running_25_yrs.pdf IEFC_WS_SPS_running_25_yrs.ppt

11:50 lunch break

Closed Session

15:30 Coffee break