1. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 1 Realisation of the interlocking between SPS, LHC and CNGS and open issues Beam Interlock Systems (BIS) B.Puccio and R.Schmidt for the Beam Interlock Team

2. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 2 Why a Beam Interlock System? Collects status or default signals Performs a summation of all signals As one of the systems involved in the machine protection, the Interlock system has to: BIS Kicker System Transmits the result as: - Dump Request - Injection Permit - Extraction Enable

3. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 3 Specification for LHC Beam Interlock system 1. Fast 2. Safe 3. High Test Coverage 4. Maintainable 5. Monitorable 6. Cost Effective 7. Deterministic LHC ring, LHC- Injection, SPS ring, Transfer- Lines ~70μs over 28km Requesting Beam Dump = SIL 3 Low repair time Self-Diagnosing Provides first Post Mortem info On startup – ‘As Good As New’ Protects $$$ but need not be $$$ Know what it’s going to do & when 8. A CERN-wide generic Beam Interlock System

4. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 4 …up to 14 User Interfaces The LHC solution as a generic answer up to 1200 meters Beam Permit Loops Beam Permit #1 #3 Beam Permit Beam Permit #2 User Interfaces (installed in User’s rack) Test & Monitoring Module Patching Core module F.O. interface Safe Beam Par. (via Timing) Safe Beam Parameter Receiver + Beam Interlock Controller copper cable VME CRATE Control Network Application SW

5. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 5 Some Hardware pictures Front view Rear view PCB Front view CIBT card (Test & Monitoring board) BIC crate with beam-1 cards only Patching at the back of the BIC crate User Interface

6. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 6 The main features  BIC as proposed for LHC can be “easily” used for interlocking the SPS ring, SPS-LHC-CNGS Transfer lines and LHC Injection.  Designed to be Safe, Fast, and Deterministic.  Redundancy throughout: User Systems  BIS  Kicker system  Simplicity for crucial process  Effort on monitoring and maintainability  Cost effective: –Set of BIC cards  6k CHF (VME system not included) –User Interface  1k CHF each (connection cable not included)  Using a Generic solution with unique Hardware: –Simplify the Hardware production, installation and maintenance –Reduce the workload in using a common Monitoring Software –Offer the same environment to the Operators

7. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 7 Beam Interlock Systems as service and client of AB-CO The Beam Interlock Systems are at the same time service to the accelerator operation and client of AB/CO Service: Provide safe and fast link between Equipment systems & Kicker system Play key role in Post-Mortem process and Beam Abort analysis Supply remote monitoring and failure diagnostics Client: VME system and Timing connection  support from CO-HT JAVA based supervision  support from CO-AP FESA framework  supported as [ ] by CO-HC (future) Database support for asset management, controls layout, naming and configuration  support from CO-DM Logging, Post Mortem and ALARMS client for CO-DM & CO-AP Tools for automated commissioning during regular cold-checkout are expected ( similar to the Sequencer used for Hw Commissioning)

8. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 8 Extensive testing additional Analysis of Dependability Series Production Install & Commission Schedule Q4Q1Q2Q3Q1 Q2 Q3Q4 20072006 Injection test Beam commissioning CNGS test SPS start-up Q4  BIC project is quite mature now: –Basic technical choices validated during last TT40/TI8 Extraction tests. –Since then, the Hw has been upgraded and tested in the lab. –Hw board pre-series production foreseen for the end of the year.  BICs will be used for the next SPS start-up (in // with existing Interlock system) as a “real” test bench before LHC  Concerning the 2 next major milestones (CNGS tests and LHC sector test): the required BICs will be installed and commissioned on time.

9. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 9 System partition and manpower # of BICs # of User Interfaces Connected systems LHC Beam 16~120 BLM, Collimation, Vacuum, Experiments, Access, RF, BT systems, Operators/CCC, PIC, WIC, FMCM, etc… Transfer Lines 10~50 ROCS/Power Converters, BTV, BPM, TED & TBSE, CNGS target, Magnetic horn, etc… LHC Injection 2 +(6)* ~20* TDI, TCDI, FMCM, Operators/CCC, etc… SPS ring 6~30 Vacuum, Power Supplies, BPM, BLM, BCT, etc… * : if Injection Permit Loop involves distributed BICs Manpower: the BIC hardware design, fabrication, installation and commissioning is performed by… In our team: 1.0 electronic engineer (very talented PhD student) 1.0 FSU for one year Help from other teams (inside and outside CO): 0.3 technical engineer (electronics) 0.5 technical engineer (electronics)

10. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 10 Injection Interlock System X  Using same architecture as for LHC Beam Permit in using same BIC: –Do NOT consume resources in new Hw & Sw developments –Easy to implement, to extend, to maintain, and to monitor –Expensive solution (25 to 30 KCHF per BIC), since only one connection per BIC  Other solutions are possible: –Using PLC and Optical Links for example –Collaboration with BT is being considered How to implement the Injection Inhibit requested by the Experiments and BT?

11. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 11 Realisation of the interlocking between SPS, LHC and CNGS and open issues Safe Beam Parameters Transmission system

12. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 12 Summary of requirements  3 of the Parameters are built from 2 types of information: EInt. Safe Energy X BPFsX SBFsXX  To be delivered with reliability to various systems  To be distributed over Long Distance  The Parameter transmission is less time critical (except for the Beam Presence Flags) BETS BCT 1 BCT 2 BETS ? I beam2 I beam1 Energy BLM Safe Energy Beam_Presence Flags Safe_Beam Flags INJ ExtI BLM BIC BLM BIC BETS: Beam Energy Tracker System BCT: Beam Current Transformer InjK: Injection Kicker System ExtI: SPS Extraction Interlock BIC: Beam Interlock Controller INJ InjK LHC modes BLM EXP.  Expected level of reliability: SIL2

13. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 13 Proposal for distributing SLP via the timing system distribution  Energy and Beam Intensity values are transmitted to the Timing Generator (CTG) and to the SLP Generator  The SLP-G computes the Safe Beam Flags and the Beam Presence Flags  The SLP-G could be only used for critical cases: Beam Presence Flag should be guaranteed 1mS before Injection  The CTG sends regularly (every ~1sec) Parameters over the Timing network as “standard” frames  Safe Beam Parameters are received by the Users via dedicated VME board (“CTRS”) – ensuring safety  The SLP-G performs cross check in receiving Parameters via a “CTRS” I beam2 I beam1 Energy SLP GEN BIC BETS BIC BCT BIC BCT CTG CTRS Timing Distributed Network CTRS BLM INJ ExtI BLM BIC INJ ExtK BLM EXP. CTRS: Temporary name for a VME Timing Receiver card with dedicated SLP connections Beam Presence Flags CTRS Safe Beam Flags MKQA

14. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 14 Conclusions  BIC is a tangible example of the fruitful collaboration within CO. An “equipment project” done from the front end to supervision layer withing the CO group. Concerning to the 2 next major milestones (CNGS tests and LHC sector test):  We expect the required BICs will be installed, commissioned on time and be ready to participate. Concerning Injection Inhibit requested by the Experiments: under study - Use similar architecture as LHC Beam Permit Loops with distributed BIC? - Or use another (and cheaper) solution? Concerning Transmission of Safe Beam Parameters via Timing System Network - Valuable idea for completing a essential request in using existing resources - Opportunity to confirm once more how a closed collaboration within CO can be profitable for the involved teams. Software support within CO has been good, and is required to continue for some time. The electronic engineer (PhD student) is vital for the BIC projects.

15. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 15 That’s all

16. BP & RS: BIS & SLP for AB/CO Review, 23 h Sept. 2005 16 Guinea pig back Ginea pig