R. Garoby 1 1rst joint HIPPI/BENE meeting19/11/2003

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

R.G. 2 19/11/2003

Status of IPHI-SPL Collaboration

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

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.

R.G. 3 19/11/2003

Main ObjectivesResearch 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.

MeansCoordinated efforts of 9 laboratories [RAL, CEA(Saclay), CERN, FZJ, GSI, Frankfurt

University, INFN-Milano, IPN(Orsay), LPSC(Grenoble)] investing11.1 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

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

HIPPI (CARE) Status (1)

R.G. 4 19/11/2003

HIPPI Status (2):Organization

WP1: M&C Leader: R. Garoby

WP2: NC Leader: J.M. De Conto

WP3: SC Leader: S. Chel

WP4: CHOP Leader: A. Lombardi

WP5: BD Leader: I. Hofmann

CARE Central Management

Steering Committee

JRA4: HIPPI Coordinator : R. Garoby Deputy : M Vretenar

JRA4: HIPPI Advisory Scientific

International Committee

Drift Tube Linac

H-mode Drift Tube linac

Side coupled Linac

Cell coupled Drift tube linac

Elliptical Cavity

Spoke Cavity

CH resonator

Chopper structure A

Chopper Line

Chopper Structure B

Code development

Code benchmark.

Simulation and exp. at UNILAC

Simulation and exp. at CERN Diagnostics and collimation

Steering Committee meetings

Reviewing and Reporting

Dissemination

Task/Topic Level

Work Package Level

Comparative assessment of NC structures

Comparative assessment of SC structures

Comparative assessment of chopper designs

Comparative assessment of codes

R.G. 5 19/11/2003

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 StructuresSpoke and elliptical cavities, coupler design with test of prototypes

WP4: Beam ChoppingTwo different choppers & chopping line designs with prototypes and tests with beam

WP5: Beam DynamicsValidation of simulation codes, Experiments on beam halo & emittance growth,

Development of special beam diagnostics, Beam collimation design

R.G. 6 19/11/2003

INTERNATIONAL SCIENCE & TECHNOLOGY CENTER

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

Status of ISTC Projects (1)

R.G. 7 19/11/2003

INTERNATIONAL SCIENCE & TECHNOLOGY CENTER

• 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]

Status of ISTC Projects (2)

R.G. 8 19/11/2003

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.

Technical Progress (1):Evolution of the SPL Design

DTL352MHz CCDTL 352MHz SCL 704MHz

3MeV 40MeV 90MeV 160MeV

transfer line to PSB

R.G. 9 19/11/2003

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

R.G. 10 19/11/2003

fast chopper (inside quadrupole)

bunching cavity

Bunch Shape and Halo Monitor

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

Technical Progress (3):3 MeV chopper line

R.G. 11 19/11/2003

RF structures 3-160 MeV:

1. DTL (with CEA/IN2P3 and ITEP/VNIIEF): construction of a prototype Tank1 with dummy drift tubes + complete drift tube prototype (2006)

2. DTL-RFQ: high power prototype to be designed and built by IHEP/VNIIEF (2006)

3. CCDTL (40-90 MeV): full power one-cell prototype built at CERN (end 2003). Multi-cell prototype to be built at BINP/VNIITF (2006).

4. SCL: low power prototypes to be made at Grenoble and BINP/VNIITF.

Technical Progress (4):Normal Conducting RF structures

R.G. 12 19/11/2003

Case 1 (no improvement)

USERS 2004 - 2006 2007 - 2010 Beyond 2010

PS East Hall, nTOF, AD

OK OK OK

SPS FT (except CNGS)

OK Less cycles Less cycles

LHCOK (injectors

only)

OK

(21.6 s supercycle)

OK

(21.6 s supercycle)

CNGSOK

(only in 2006)

Flux 0.75 PS irradiation

Nominal flux

(no upgrade)

ISOLDE OKFlux 1.08

(no upgrade)Superseded by

EURISOL facility

Intermediate Report of the High Intensity Protons Working Group (1)

R.G. 13 19/11/2003

USERS 2006 - 2009 Beyond 2009

LHCOK

(22.8 s supercycle)

OK

(22.8 s supercycle)

CNGSOK

(22.8 s supercycle)

Nominal flux

(no upgrade)

ISOLDEFlux 0.92

(no upgrade)Superseded by

EURISOL facility

• 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

Case 2 (minimum improvements)

Intermediate Report of the High Intensity Protons Working Group (2)

R.G. 14 19/11/2003

0.9 s basic period

0.9 s basic period

+ Double PSB batch for CNGS

0.9 s basic period

+ Linac 4

LHCOK (23.4 s

supercycle)OK (25.2 s

supercycle)OK (17.1 s supercycle)

CNGS Flux 0.95 Flux 1.8 Flux 1.8

ISOLDE Flux 1.6 Flux 1.65 Flux 3.9 (1.952)

Comments - Shorter SPS porch - Shorter SPS porch

- Shortest SPS & LHC porches,

- Simple operation, margin

- Potential for LHC upgrade

• 0.9 s basic period• Double PSB batch for CNGS (8.61013 ppp (!) in SPS)• Linac 4 (6.41013 ppp for ISOLDE + single PSB batch for LHC & CNGS)

Case 3 (optimum improvements)

Intermediate Report of the High Intensity Protons Working Group (3)

R.G. 15 19/11/2003

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)

Task Name

LINAC4

Design ref inment

Construction

Commissioning

Start operation with PSB

SPL

Design ref inment

Construction

Linac4 displacement + commissioning

Start operation as PS Injector

12/31

12/30

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

Linac 4 approval SPL

approvalLHC

upgrade

R.G. 16 19/11/2003

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