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From HIPPI to the SPL…

From HIPPI to the SPL…. Status of collaborations [IPHI, HIPPI (CARE) & ISTC projects] Technical progress and approved work plan HIP intermediate report Proposed roadmap [Linac 4 & SPL] Conclusion. Status of IPHI-SPL Collaboration.

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From HIPPI to the SPL…

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  1. From HIPPI to the SPL… Status of collaborations [IPHI, HIPPI (CARE) & ISTC projects] Technical progress and approved work plan HIP intermediate report Proposed roadmap [Linac 4 & SPL] Conclusion 1

  2. Status of IPHI-SPL Collaboration IPHI = Injecteur de Protons de Haute Intensite Goal of the IPHI-SPL collaboration: modify the design of the IPHI-RFQ for 3 MeV, finish construction, test in CW with 100 mA beam current at Saclay in 2006 and deliver at CERN for use in linac 4 and SPL. • Recent achievements: • Adaptation of French equipment design to the revised parameters • Strengthening of the CERN effort (3 MeV Technical Coordination Committee, integration in EDMS, analysis of control needs…) • 2 productive collaboration meetings in 2003 • 1rst module of IPHI brazed at CERN last October • “Avenant” of agreement to be signed soon (formally declaring that the IPHI RFQ is for use at CERN) • Strong support by the IN2P3 management 2

  3. HIPPI (CARE) Status (1) • Main Objectives Research and Development of the technology for high intensity pulsed proton linear accelerators up to an energy of 200 MeV. Aimed at the improvement of existing facilities (E.U. request) at GSI, RAL and CERN. • Means Coordinated efforts of 9 laboratories [RAL, CEA(Saclay), CERN, FZJ, GSI, Frankfurt University, INFN-Milano, IPN(Orsay), LPSC(Grenoble)] investing 11.1 MEuro + 3.6 MEuro (E.U.) over 5 years • History & Status • Autumn 2002: creation of ESGARD and recommendation to propose to the E.U. an Integrated Activity about R. & D. for accelerators in the frame of the F.P. 6 • Winter 2002/2003: preparation of a proposal • April 2003: HIPPI proposal submitted to the E.U., as a J.R.A. inside the CARE I.A. • August 2003: publication of E.U.’s reviewers conclusion Þ approval of HIPPI at 90 % of the financial request • November 2003: reformulation of CARE to adapt to the allocated budget and comply with detailed (and fluctuating !) E.U. requirements • 19 till 21, November 2003: public announcement & finalization of the planning and work organization (CARE kick off meeting) • January 2004: official start 3

  4. HIPPI Status (2):Organization 4

  5. HIPPI Status (3):Organization • Work Packages: • WP1: Management & Communication • WP2: Normal Conducting Accelerating Structures DTL, CCDTL, SCL and H-mode structures with realization of prototypes • WP3: Superconducting Accelerating Structures Spoke and elliptical cavities, coupler design with test of prototypes • WP4: Beam Chopping Two different choppers & chopping line designs with prototypes and tests with beam • WP5: Beam Dynamics Validation of simulation codes, Experiments on beam halo & emittance growth, Development of special beam diagnostics, Beam collimation design 5

  6. Status of ISTC Projects (1) 1. BINP + VNIITF • Subject: “Development of the technological basis for serial production of CCDTL structures in the energy range of 40-100 MeV for the SPL project. Feasibility study of effective application of normal conducting CCL structures up to the energy of 150-180 MeV. “ • Cost: k$ 550 • Status: approved (21/10/2003) & starting 2. ITEP + VNIIEF • Subject: “Development of Alvarez-type accelerating structures for the room-temperature part of the CERN SPL project.“ • Cost: k$ 498 • Status: pending approval 3. IHEP + VNIIEF • Subject: “Design and manufacture of DTL-RFQ focusing and accelerating structure prototype for a 3-40 MeV H- linac of the SPL project.“ • Cost: k$ 500 • Status: pending approval 6

  7. Status of ISTC Projects (2) • Information and coordination between contributions [November 17 & 18 (CERN)] • Participation to the HIPPI & CARE kick-off meeting [November 19 - 21 (CERN)] • ISTC decision concerning the 2 pending projects [March 2004 at the latest] 7

  8. 3MeV 40MeV 90MeV 160MeV DTL352MHz CCDTL 352MHz SCL 704MHz transfer line to PSB Technical Progress (1):Evolution of the SPL Design • Linac 4 • Energy is increased to 160 MeV • High energy section (> 90 MeV) operates at 704 MHz to fit inside the available space (higher gradients & higher power pulsed klystrons) and to prepare for a superconducting linac section at that frequency. • SPL • Considering that the LEP cavities and their technology are aging, that CERN management does not support it anymore and that the corresponding know-how is disappearing, while bulk Nb is supported by other laboratories and provides higher gradients, the choice has been made to base the future design of the SPL on 704 MHz bulk Nb resonators. No superconducting LEP cavities will be used anymore. • A new conceptual design will be prepared in 2004. The energy will be optimized as a function of the physics goals. 8

  9. Technical Progress (2):3 MeV test stand • 3 MeV Test Stand to be installed in the PS South Hall (in place for linac 4) • Purpose: test essential front-end issues (hardware & beam dynamics) • Made of IPHI RFQ + CERN chopper line + IN2P3 diagnostics line + 2 LEP klystrons (1 for the RFQ + 1 for testing other RF structures). • Initial use of a standard CERN proton source, to be replaced by an H- source. • The elements will be placed in the exact position foreseen for Linac4. • Operation with beam: 2007 9

  10. Technical Progress (3):3 MeV chopper line Bunch Shape and Halo Monitor fast chopper (inside quadrupole) bunching cavity • 3.6 m long line, doing the beam chopping (minimization of longitudinal capture loss in the synchrotron) and the matching from RFQ to DTL. • Beam dynamics studied; final prototypes of key equipments are in construction (chopper, buncher and BSHM) • Quadrupoles and power supplies are recuperated from the CERN linacs 10

  11. Technical Progress (4):Normal Conducting RF structures RF structures 3-160 MeV: DTL (with CEA/IN2P3 and ITEP/VNIIEF): construction of a prototype Tank1 with dummy drift tubes + complete drift tube prototype (2006) DTL-RFQ: high power prototype to be designed and built by IHEP/VNIIEF (2006) CCDTL (40-90 MeV): full power one-cell prototype built at CERN (end 2003). Multi-cell prototype to be built at BINP/VNIITF (2006). SCL: low power prototypes to be made at Grenoble and BINP/VNIITF. 11

  12. Intermediate Report of the High Intensity Protons Working Group (1) Case 1 (no improvement) 12

  13. Intermediate Report of the High Intensity Protons Working Group (2) Case 2 (minimum improvements) • Solid state switch for magnets in the CNGS transfer line • Flexible supercycle control in the SPS • New multi-turn ejection from the PS Recommended by HIP and endorsed by AB management 13

  14. Intermediate Report of the High Intensity Protons Working Group (3) Case 3 (optimum improvements) • 0.9 s basic period • Double PSB batch for CNGS (8.6´1013 ppp (!) in SPS) • Linac 4 (6.4´1013 ppp for ISOLDE + single PSB batch for LHC & CNGS) 14

  15. Proposed Roadmap • Consistent with the content of a talk by L. Maiani at the “Celebration of the Discovery of the W and Z bosons”. Contribution to a document to be submitted to the December Council (“CERN Future Projects and Associated R&D”). • Assumptions: • construction of Linac4 in 2007/10 (with complementary resources, before end of LHC payment) • construction of SPL in 2008/15 (after end of LHC payments) Linac 4 approval SPL approval LHC upgrade 15

  16. Conclusion • 2003 has been very positive: • Good technical progress • Improved organization for the 3 MeV pre-injector • Remarkable success with the E.U. • External support is materializing and more is considered • Strong backing by the IN2P3 management • L. Maiani’s declaration that the SPL is an “intermediate size” project which CERN should consider starting ~ 2010 • Main uncertainties in the near future: • Consequences of the financial crisis at the CEA/DAPNIA • CERN policy after January 2004 • Level of internal resources • Relations with future Design Studies 16

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