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OLAV 1 ALBA Vacuum System Lluis Miralles Eshraq Al -Dmour 11 th April 2005

OLAV 1 ALBA Vacuum System Lluis Miralles Eshraq Al -Dmour 11 th April 2005. Talk Outline Background of ALBA. Budget and Time schedule of the project. General layout of ALBA. The vacuum system layout. First estimations of the power on the absorbers. Instrumentations and Technology.

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OLAV 1 ALBA Vacuum System Lluis Miralles Eshraq Al -Dmour 11 th April 2005

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  1. OLAV 1 ALBA Vacuum System Lluis Miralles Eshraq Al-Dmour 11th April 2005 OLAV 1, 11th -12th April 2005

  2. Talk Outline • Background of ALBA. • Budget and Time schedule of the project. • General layout of ALBA. • The vacuum system layout. • First estimations of the power on the absorbers. • Instrumentations and Technology. • The pumping speed and the Pressure profiles. OLAV 1, 11th -12th April 2005

  3. Background of ALBA 1990: 1ST attempt to fund a SR source in Spain 1994: Generalitat (through a ¨Comissió¨ Promotora) contracts personnel in 1992 for the drafting of a SR project . 1996: The Laboratori de Llum de Sincrotró (LLS) is created as a subgroup of the Institut Física Altes Energies (IFAE). This group was jointly funded between the DURSI and the OCYT and begun to elaborate a Detailed Design Study (DDS) for a Spanish SR source and prepare the case for its construction. 1998: The DDS was handed in to the relevant authorities. 2000: The LLS becomes a Consortium in its own right, between the DURSI and the UAB, with the mission to promote the use of SR, the development of SR projects and to Promote the construction of a Spanish SR source. 2002: The Spanish Government and the Catalan Autonomous Government announce their decision to jointly fund the construction of a Spanish SR source in Catalunya. 2003: The ¨Consorcio para la Construcción, Equipamiento y Explotación del Laboratorio de Luz Sincrotrón¨ (Consortium CELLS) is legally created with two governing bodies: ¨Comisión Rectora¨ and ¨Comisión Ejecutiva¨ . The Presidents of the Rectora and Executive Commissions are named. The Director of CELLS is appointed (October 2003). 2003: Staff from LLS is legally transferred to CELLS (completed by 1-1-2004) and recruitment of other personnel starts Advertisements for the positions of Division Heads (October 2003) are placed and project started. www.cells.es OLAV 1, 11th -12th April 2005

  4. Background of ALBA OLAV 1, 11th -12th April 2005

  5. Budget and Time Schedule Budget= 177.934 M€ Time Scheduale BUILDING: GEOTECHNICAL STUDY: 15-4-2004 to 1-5-2006 DETAILED DESIGN STUDY: 15-7-2004 to 1-10-2005 URBANIZATION OF SITE: 1-1-2004 to 1-1-2006 BUILDING CONSTRUCTION: 1-1-2006 to 1-7-2007 ACCELERATOR COMPLEX: SPECIFICATIONS MANUAL: 1-1-2004 to 15-10-2004 LINAC: 1-5-2005 to 1-7-2007 BOOSTER AND STORAGE RING: 1-6-2005 to 1-6-2008 COMMISSIONING: 1-10-2008 to 1-5-2010 BEAM-LINES AND EXPERIMENTAL STATIONS: CHOICE OF BEAM-LINE OBJECTIVES: 1-9-2003 to 1-10-2005 INSTALLATION OF BEAM-LINES: 1-8-2008 to 1-8-2009 COMMISSIONING WITH USERS 1-6-2009 to 1-5-2010 OLAV 1, 11th -12th April 2005

  6. Ideas Contest OLAV 1, 11th -12th April 2005

  7. Ideas Contest OLAV 1, 11th -12th April 2005

  8. Ideas Contest OLAV 1, 11th -12th April 2005

  9. General layout of ALBA Parameters E=3GeV I=400mA εx=4.3nmrad CSR=268.8m Four fold symmetry B=1.42T Bending angle=11.25˚ Bending radius=7.047m CB=249.6m top-up injector 100MeV Linac 3GeV Synchrotron 3GeV Storage Ring 4xLSS(7.8m) 12xMSS(4.2m) 8xSSS(2.6m) 33 (possible) beam lines (17 ID/ 16 BM) OLAV 1, 11th -12th April 2005

  10. LSS MSS SSS Matching Cell MSS Unit Cell SSS Unit Cell MSS Matching Cell LSS General Layout of ALBA • *16 vacuum section of two types: • the unit cell. • the matching cell. • *Structure: (M-U-U-M) • *32+8 RF shielded gate valves. OLAV 1, 11th -12th April 2005

  11. The Vacuum Layout Additional Valve Valve Valve SSS MSS MSS Unit cell Unit cell Matching cell MSS LSS SSS MSS Additional Valve Unit Cell, total length 13.7m OLAV 1, 11th -12th April 2005

  12. Unit cell Matching cell MSS LSS Valve Valve MSS or LSS LSS or MSS Matching Cell, total length 11.52m The Vacuum Layout Matching cell OLAV 1, 11th -12th April 2005

  13. A A A-A The mainabsorber Vacuum Chamber Design Dipole Vessel • The vacuum chamber of ALBA are stainless steel. • Standard vacuum vessel for all the dipoles. • Copper shield with cooling coils. • Gradient. OLAV 1, 11th -12th April 2005

  14. Vacuum Chamber Design Magnets Vessel (Post-Dipole/Pre-Dipole) OLAV 1, 11th -12th April 2005

  15. Vacuum Chamber Design Magnets Vessel (Post-Dipole) • Antechamber. • The ID beam line is out of the connection flange. • The bending magnet beam line out of the pumping port. • BPMs are welded to the vacuum chamber. OLAV 1, 11th -12th April 2005

  16. B A A B 28 72 A-A Vacuum Chamber Design Magnets Vessel (Post-Dipole) B-B Cross section at the location of the sextupole magnet. Cross section at the location of the quadrupole magnet OLAV 1, 11th -12th April 2005

  17. Vacuum Chamber Design The insertion devices vacuum vessels. A A 3 x LSS: (7.83m straight) available length 6.75m. OLAV 1, 11th -12th April 2005

  18. Vacuum Chamber Design The insertion devices vessels. MSS 12 x MSS (4m straight): available length; 3.1m without tapers (2.86m when tapers* considered) * The final design of the tapers will depend on the ID to be used. SSS 2x SSS (2.6m straight): available length 2.2m. OLAV 1, 11th -12th April 2005

  19. 1-2 2-1 1-4 1-3 1-5 1-1 2-3 2-2 3-1 4-2 4-4 3-4 3-3 3-2 4-1 4-3 The first results for Power density on the absorbers Max. Surface power density=250W/mm2 (with normal incidence). OLAV 1, 11th -12th April 2005

  20. All metal valve reserved for RGA and Roughing station SIP+TSP SIP SIP+TSP Matching cell Vacuum sections SIP SIP SIP SIP SIP SIP SIP All metal valve reserved for RGA and Roughing station SIP SIP SIP SIP SIP SIP SIP+ TSP SIP+TSP SIP SIP SIP Instrumentations Unit cell Vacuum sections Current from SIP to be measured OLAV 1, 11th -12th April 2005

  21. 150l/s 200l/s 150l/s 500l/s 300l/s 500l/s 300l/s NEG coating 150l/s 150l/s 150l/s 150l/s 300l/s 150l/s 150l/s 300l/s 300l/s 150l/s 150l/s 200l/s 500l/s 500l/s 300l/s 150l/s 300l/s 150l/s 300l/s NEG coating The Pumping Speed *Nominal pumping speed for the storage ring= 60400 l/s (NEG not considered) * Nominal pumping for a vacuum cell= 3775 l/s * Ion pumps and TSP, NEG coating for the narrow gap ID OLAV 1, 11th -12th April 2005

  22. Narrow gap ID MSS C=0.9l/sec The Pressure Profile Static pressure ηth=1.0·10-11 mbar.l/sec.cm2 Pavg,th=3.2·10-10 mbar OLAV 1, 11th -12th April 2005

  23. The Pressure Profile E=3GeV I=100mA Dose=1AH Total average pressure= 2.0·10-8 mbar OLAV 1, 11th -12th April 2005

  24. The Pressure Profile E=3GeV I=400mA Dose=1000AH~ 2 years Total average pressure= 1.5·10-9 mbar OLAV 1, 11th -12th April 2005

  25. ACKNOWLEDGMENT Lothar Schulz-SLS/PSI Dieter Einfeld-CELLS OLAV 1, 11th -12th April 2005

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