1. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 1/33 Preparation work for ALBA’s Closed-Orbit BPMs 3rd Libera Users Meeting – June 2009 Angel Olmos

2. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 2/33 OUTLINE ALBA OVERVIEW LIBERAS, SINCE 2nd USERS MEETING ALBA FAST ORBIT FEEDBACK  BEAM POSITION MONITORS  RF CABLES  LIBERA ELECTRONICS  FOFB NETWORK  CORRECTION CALCULATION  POWER CONVERTERS  CORRECTOR MAGNETS

3. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 3/33 ALBA OVERVIEW SLS type  Booster and SR share the same tunnel 100MeV Thales LINAC 7 out of 32 beamlines on day one 1 Bending 1 Wiggler 1 SC-Wiggler 2 IV-Undulators 2 Apple II Undulators Full energy 3GeV Booster

4. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 4/33 Schedule on August-06 Jun-08Building finished Nov-08Booster commissioning Mar-09SR commissioning during 8 months Oct-09Beamlines commissioning ALBA OVERVIEW Schedule on April-09 ?Building not yet finished  12months delay Jul-09Cooling available  13 months delay Oct-09Booster commissioning  11 months delay May-10SR commissioning during 2 months  14 months delay Sep-10Beamlines commissioning  13 months delay Beam for users, January 2011

5. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 5/33 Moving from University to ALBA site on April-09 ALBA OVERVIEW Where are we now?

6. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 6/33 ALBA OVERVIEW Where are we now? LINAC pre-commissioning done on Summer-08 Turn-key system from Thales LTB and LiDia CELLS responsability Temporally electricity and cooling Full commissioning TBD by fall-09

7. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 7/33 Service Area (electronic racks) and Experimental Hall finished ALBA OVERVIEW Where are we now? Cooling and Air conditioning pending Booster mechanical installation finished SR  8 out of 16 sectors installed Hutches and beamlines on the way Cabling campaign has started

8. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 8/33 OUTLINE ALBA OVERVIEW LIBERAS, SINCE 2nd USERS MEETING ALBA FAST ORBIT FEEDBACK  BEAM POSITION MONITORS  RF CABLES  LIBERA ELECTRONICS  FOFB NETWORK  CORRECTION CALCULATION  POWER CONVERTERS  CORRECTOR MAGNETS

9. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 9/33 LIBERAS, SINCE 2nd USERS MEETING - Not much... that’s why I’m showing you other stuff - Two units (not really used) during LINAC pre-commissioning (release 1.8) LINAC synchronization problem Peak detector on Device Server for position calculation

10. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 10/33 - Development of a generic Matlab GUI for 2.0 Used for Lab testing of new SW releases LIBERAS, SINCE 2nd USERS MEETING

11. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 11/33 OUTLINE ALBA OVERVIEW LIBERAS, SINCE 2nd USERS MEETING ALBA FAST ORBIT FEEDBACK  BEAM POSITION MONITORS  RF CABLES  LIBERA ELECTRONICS  FOFB NETWORK  CORRECTION CALCULATION  POWER CONVERTERS  CORRECTOR MAGNETS

12. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 12/33 ALBA FAST ORBIT FEEDBACK Beam Position Monitors BPM readout electronics FOFB network Correctors Power Converters (PC) Correctors magnets Correction CPUs

13. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 13/33 ALBA FAST ORBIT FEEDBACK Beam Position Monitors BPM readout electronics FOFB network Correctors Power Converters (PC) Correctors magnets Correction CPUs

14. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 14/33 BEAM POSITION MONITORS Beam Position Monitor block  On chamber welded block including 4 button- type feedthroughs Feedthroughs and BPM blocks tested during different stages at factory and at site

15. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 15/33 BEAM POSITION MONITORS TDR head for reflection measurement 1- After manufacturing + Check manufacturing process + Calculate electrical behavior + Sort the buttons before welding 2- After welding on the BPM block + Prove that buttons are OK 3- After baking of the chambers + Final OK before delivery Buttons measurements at factory (FMB) Capacitance Dispersion < 1%

16. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 16/33 BEAM POSITION MONITORS - Offset due to non perfect buttons and their placement in the block holes - Measured by external means. No wired method possible S-paremeters measurement using a 4-ports network analyzer BPMs Electrical Offset measurement at site

17. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 17/33 BEAM POSITION MONITORS Processing of Tx coefficients H/V offsets Booster case Max offset kept below 150 µm BPMs Electrical Offset measurement at site

18. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 18/33 ALBA FAST ORBIT FEEDBACK Beam Position Monitors BPM readout electronics FOFB network Correctors Power Converters (PC) Correctors magnets Correction CPUs

19. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 19/33 RF CABLES - First stage of semi-rigid PEEK dielectric cables being installed (as Soleil case) Tight space between magnets makes impossible to plug any cable without a pre-stage After chamber bakeout Chamber movement on top of half-opened magnets

20. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 20/33 - RF cables from the semi-rigids to the Liberas are on the way of production RF CABLES - 4 Andrew CNT-240 cables in a hosepipe (Copy+Paste cheap version of the commonly used Time Microwave LMR-240) - 5000m of cable ordered. Assembly of SMA connector to be done by cabling company

21. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 21/33 LIBERA ELECTRONICS - As said, not much has happened - Release 2.0 installed on 3 units but not yet tested - Last tested software release was 1.82 (the one on the installed units) - Matlab GUI for 2.0 developed but not really used - About TANGO device server... still “forking” on others job - Small pseudo-server developed for LINAC beam peaks analysis - HW installation of 120 Storage Ring units on the Service Area done - Only 12 of the 28 Booster units installed. The others kept for Lab testing - Report of failures/interventions: + Hardware patch (30). Ethernet cable length... Corrected + Wrong voltages (8)... not used on Libera + Out of specs on BCM (2) + Out of specs on TbT rms, low # ADCs (2) + Noisy channel (1) + PM buffer not triggered (1) Not corrected

22. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 22/33 ALBA FAST ORBIT FEEDBACK Beam Position Monitors BPM readout electronics FOFB network Correctors Power Converters (PC) Correctors magnets Correction CPUs

23. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 23/33 Distributed architecture using 4 racks per sector (NT, Diagnostics, Controls, PCs) FOFB NETWORK

24. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 24/33 Topology based on the use of network spare optical fibers to Sector 09 FOFB NETWORK

25. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 25/33 FOFB NETWORK Patch panel on Sector 09 will allow any combination of interconnections

26. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 26/33 ALBA FAST ORBIT FEEDBACK Beam Position Monitors BPM readout electronics FOFB network Correctors Power Converters (PC) Correctors magnets Correction CPUs

27. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 27/33 CORRECTION CALCULATION - Original plan was to use MicroResearch reading board + distributed processing CPUs - Pentium M running Linux 2.6 already installed but “under investigation” - Not possibility of DMA on MicroResearch boards turns us to look for other solutions  VMETRO?... Tell me!!!! - Distribution of data using Diamond Communication Controller internally agreed few weeks ago (discussions since who knows when) - We will pay ITech for the integration job in our design - Correction done with widely used SVD algorithm + PID controller

28. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 28/33 CORRECTION CALCULATION - Even though we have 120 BPMs and their corresponding Libera electronics, only position data from 88 BPMs will be used for orbit correction  Why? - Representation of β functions vs. phase advance shows that some BPMs give almost the same information (same info = no info) - BPMs are better distributed according the vertical plane  were more precision is needed

29. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 29/33 ALBA FAST ORBIT FEEDBACK Beam Position Monitors BPM readout electronics FOFB network Correctors Power Converters (PC) Correctors magnets Correction CPUs

30. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 30/33 POWER CONVERTERS Power converter I/V transducer ADC PSI Controller Tx Board IP modules Carrier cPCI Bus RS232 service port Electrical  Optical Optical protocol management Commercial Diamond Correction Calculation CPU Optical ALBA Controls rack Correctos PCs rack Provide ±1mrad of DC deflection and ±40µrad @ 100Hz Resolution of 18 bits OCEM-Diamond PCs Tested at factory but not yet delivered

31. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 31/33 - Eddy currents on the vacuum chamber reduce the effect of the magnetic field at high frequencies f H =235 Hz f V =1550 Hz Horizontal Steering Vertical Steering - All delivered and on installation process - Chamber thickness reduction to 2mm in the correctors CORRECTOR MAGNETS FOFB limiting factor - ALBA sextupoles have extra coils to provide H/V beam steering

32. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 32/33 - Half of the Storage Ring BPMs still pending. Measurement goes together with installation WHAT’S NEXT? - LTB, BTS and BOOSTER BPMs electrical offset measured - On site measurement of RF cables lengths (by cabling company)  connec. assembly - All RF cables will be checked after installation one by one - Test Libera release version 2.03 in the Lab (probably our production version) - Develop graphical utilities for Booster and Storage commissionings - Take decisions about “sniffer” boards and processing CPUs - Implement an small FOFB in the lab before final installation - Receive and test the correctors power converters LINAC full commissioning by Sep-Oct 09 Booster commissioning right after LINAC Storage Ring commissioning May-10

33. 3 rd Libera Users Meeting – June 2009 Preparation work for ALBA’s Closed-Orbit BPMs 33/33 Preparation work for ALBA’s Closed-Orbit BPMs 3rd Libera Users Meeting – June 2009 Angel Olmos