cern, 18 th feb. 2004eurisol - beta beam design studym. benedikt 1 status of the beta-beam in the...

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 1

Status of the Beta-Beam

in the EURISOL Design Study

Michael Benedikt, AB Division, CERN

Part I: Eurisol Design Study Preparation

Part II: Planning of the Beta-Beam Task

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 2

EURISOL Design Study – Goals: “Three orders of magnitude better”“Three orders of magnitude better”

Production of an Engineering Oriented Design (EOD), of the facility, in particular in relation to its most technologically advanced aspect (i.e. excluding the detailed design of standard elements of the infrastructure).

• Technical Design Report for EURISOL.• Conceptual Design Report for Beta-Beam

(first study).Carrying out the Technical Preparatory Work (TPW) related to components, subsystems, material or techniques (dedicated software is included) that are critical for the future development of the new facility.

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 3

FP6-INFRASTRUCTURES EURISOL Design Study

Total budget for the call: 70 M€

Requested budget: About 9 M€

Deadline: 4 March 2004

Pre-notification proposal: before the end of 2003

Acronym: EURISOL DS

Consortium agreement: not required

Duration of the project: 48 months

WRITING GROUP: G. Fortuna (coordinator), P. Butler, Y. Blumenfeld, M. Lindroos (beta beam)

COORDINATING INSTITUTION: GANILTechnical Coordinator: John Cornell

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 4

Preparation of EURISOL DS Proposal

Important MilestonesNOVEMBER 14 ORSAY:

First open meeting of Task Leaders and Writing Group. Presentations of provisional work planning for all tasks and discussions.

JANUARY 8Deadline for preparation of advanced description of the tasks containing: work planning, milestones, deliverables and requested resources.

JANUARY 19-21 BRUSSELS: Meeting of the Writing Group for preliminary analysis of documentations sent by task leaders.First check of global coherence and requested resources. Feed-back with instructions to task leaders.

JANUARY 26-27 PARIS: Joint meeting of Writing Group and EURISOL Steering Committee to examine status and global coherence of the DS proposal.

FEBRUARY 16-18th CERN: Open meeting of the Writing Group and Task Leaders for the update of the draft proposal. Plenary meeting of the Writing Group.

FEBRUARY 25-27th PADOVA: Final meeting of the Writing Group befor DS proposal submission to EU.

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 5

Eurisol Design Study Tasks

TASKS LEADER E-MAIL INSTITUTE * NATURE OF WORK

1) Liquid Metal Target/Ion Source H. Ravn/U. Koester

Friedrich.Groeschel@psi.ch CERN-PH PW - PRO - E

2) Direct Target / Ion-Source J. Lettry Jacques.Lettry@cern.ch CERN-AB PW - PRO - E

3) Solid Converter Target / Ion–Source

L. Tecchio Luigi.tecchio@lnl.infn.it INFN PW - PRO – E

4) Safety & Radioprotection D. Ridikas ridikas@cea.fr CEA SACLAY PW

5) Heavy-Ion Accelerator Design

M-H. Moscatello moscatello@ganil.fr GANIL PW -PRO

6) Proton Accelerator Design A. Facco alberto.facco@lnl.infn.it INFN PW - PRO

7) SC Cavity Development S. Bousson bousson@ipno.in2p3.fr IPNO PW –PRO

8) Beam Preparation A. Jokinen ari.s.jokinen@phys.jyu.fi JYFL PW - PRO - E

9) Physics and Instrumentation R. Page rdp@ns.ph.liv.ac.uk U LIVERPOOL PW - PRO

10) Beam Intensity Calculations K.H. Schmidt k.h.schmidt@gsi.de GSI PW – E

11) Beta Beams Aspects M. Benedikt Michael.Benedikt@cern.ch CERN-AB PW

12) Global Coherence and Layout TO BE DEFINED

*PW=Paperwork PRO=Prototype E =Experiment

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 6

List of Participants

PARTICIPANTS PERSON IN CHARGE

1 GANIL (F) D. GOUTTE

2 IN2P3 (F) D. GUERREAU

3 INFN-LNL (I) G. FORTUNA

4 INFN-LNS (I) E. MIGNECO

5 INFN (I) G. RICCO

6 CERN M. LINDROOS

7 UNIV.UPPSALA (S) C. EKSTROM

8 CEA (F) N. ALAMANOS

9 UNIV. FRANKFURT (G) ?

10 NIPNE (RO) D. BUCURESCU

11 JYVASKYLA (FI) R. JULIN

12 UNIV.MUECHEN (G) AUMULLER

PARTICIPANTS PERSON IN CHARGE

13 FZ JULICH (G) D. GRZONKA

14 UNIV. MAINZ (G) C. SPATH

15 IOP (LI) ?

16 UNIV. WARSAW (PL) W.MACIEJEJEWSKI

17 IOP (SK) E. BETAK

18 UNIV. SURREY (UK) LILIARD

19 UNIV. LIVERPOOL (UK) R. D. PAGE

20

GSI (G) W. HENNING

21 USDC (E) G.R. GAYOSO

22

CCLRC RAL (UK) D. WARNER

23 PSI (CH) W. FISCHER

24 UNIVERSITY HOSPITAL OF GENEVE

?

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 7

Preliminary Writing Group Suggestion: Cost (k€)

Task Coordinator

Requested by the Task Leaders

to EU

Task 1:Liquid Metal Target/Ion Source

H. Ravn(CERN)

?

Task 2:Direct Target/Ion-Source

J. Lettry(CERN)

800

Task 3:Solid Converter Target/Ion–Source

L. B. Tecchio (INFN-LNL)

979

Task 5:Heavy-Ion Accelerator Design

M. H. Moscatello(GANIL)

784

Task 6:Proton Accelerator Design

A. Facco (INFN-LNL)

356

Task 7:SC Cavity Development

S. Bousson(IPNO)

1257

Task 4:Safety & Radioprotection

D. Ridikas(CEA-SACLAY)

696.5

Task 9:Physics and Instrumentation

R. Page(LIVERPOOL)

500

Task 10:Beam Intensity Calculations

K.H. Schmidt(GSI)

631

Task 8:Beam Preparation

A. Jokinen (JYFL)

750

Task 11:Beta Beams Aspects

M. Benedikt (CERN)

1034

Suggested by Task Leaders

―› TAR: 2400

(27%)

―› ACC: 2400

(27%)

―› ISS: 1700

(19.3%)

―› BBB: 1750

(19.9%)

BBB: Beta Beam & Beam manipulation ACC: Accelerators ISS: Intensity, Science & Safety TAR: Targets

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 8

Beta Beam Concept Design

Neutrino Source

Decay Ring

Ion production ISOL target &

Ion source

Proton Driver SPL

Decay ring

B = 1500 Tm B = 5 T C = 7000 m Lss = 2500 m

6He: = 150 18Ne: = 60

SPS

Acceleration to medium energy Bunching ring

and RCS

PS

Acceleration to final energy

PS & SPS

Experiment

Ion acceleration Linac

Beam preparation ECR pulsed

AIM: provide beams of electron (anti) neutrinos by decay of beta active ions.

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 9

Task: Beta Beam Aspects

Neutrino

Source

Decay Ring

Ion production

ISOL target & Ion source

Proton Driver SPL

Decay ring

Br = 1500 Tm B = 5 T C = 7000 m Lss = 2500 m

6He: = 150 18Ne: = 60

SPS

Acceleration to medium

energy Bunching ring

and RCS

PS

Acceleration to final energy

PS & SPS

Experiment

Ion acceleration

Linac

Beam preparation ECR pulsed

Starts at exit of heavy ion LINAC (~100 MeV/u) to Decay Ring (~100 GeV/u).

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 10

Strongly linked Tasks

1) High power proton driver TASK: Proton Accelerator.• 5 MW – 5mA CW superconducting proton linac.

2) Ion production (Ne) TASK: Direct Target & Ion Source.• 100 kW target station.

3) Ion production (He) TASK: Solid Converter-Target/Ion Source.• 100 kW target station.

4) Pulsed ECR source TASK: Beam Preparation.• 60 GHz pulsed source to give time structure.

5) Ion acceleration TASK: Heavy Ion Accelerator.• Acceleration to ~100 MeV/u

6) Radiation aspects TASK: Safety & Radioprotection.• General radioprotection aspects, does not include collimation

system(s).

7) Physics case TASK: Physics & Instrumentation.• Low energy Beta Beam physics case and potential use of (parts

of) beta beam complex for nuclear physics.• Base line and high energy Beta Beam physics cases are not

included in any task!

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 11

The Beta-Beam Task:Boundary Conditions

• Beta Beam task starts at exit of the EURISOL post accelerator.

• Comprises the design of the complete accelerator chain up to the decay ring.

Assumed starting conditions – incoming ion beam: Fully stripped beam (6He or 18Ne) with several 10 s pulse length.Beam energy of around 100 MeV/u.Repetition rate around 15 Hz during ~1 second No beam during following 8 seconds (total cycling time 8 - 10 s).

What are we aiming at in the Decay Ring: Very few, very intense bunches, as short as possible (4 bunches,<10 ns)Stacking of the “fresh” ions with the already circulating bunches.

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 12

Proposed Beta-Beam Sub-TasksThe present base line scenario features a three stage accelerator chain:- One or more low energy machines for bunching of the (long) beam and fast acceleration to higher energies to increase lifetime.-The existing PS and SPS machines for further acceleration to the required top energies.- A high energy Decay Ring to accumulate the ions and to act as neutrino source.

This suggests to define the sub-tasks in the way the accelerator chain is structured:

ST 1: Design of the low energy ring(s).

ST 2: Ion acceleration scenarios in PS/SPS and required upgrades of the existing machines including new designs to eventually replace PS and/or SPS.

ST 3: Design of the high energy Decay Ring.

One more sub task is proposed to review and clearly define of the base line scenario as starting point for the machine design sub tasks; to continuously follow up the accelerator complex development with close contacts to other EURISOL tasks and also to the neutrino physics community.ST 0: Base line design and evolution of the Beta Beam accelerator complex.

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 13

ST 0: Base line design and Evolution of Accelerator ComplexMajor Activities

• Review and confirmation of the beta beam base line design as starting point.• Close contacts to the neutrino physics community to guide the accelerator complex design according to requirements and evolution of the physics case.• Ensure the link to other related EURISOL tasks to clearly define the needs, expectations and “hand over” points.• Act as “parameter” and steering group for the other beta beam sub tasks.

Specific Aspects• General (theoretical) accelerator physics issues.• Strategic design choices.• Relations to outside.

Goal • Steering and follow up of the Beta Beam accelerator complex design.

Time aspects / manpower estimate• During the complete duration of the design study (48 months). • Members from all institutes participating in the Beta Beam task.• Manpower requirement: 4 – 5 man-years.

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ST 1: Design of low energy ring(s)Major Activities• Optics design with beam dynamic simulations for low energy ring(s).• First technical designs demonstrating the feasibility of critical hardware.

Specific Aspects• Accumulation of relatively long linac beam (multi turn injection, etc.)• Aspects related to fast acceleration (RCS?) magnets, power converters, RF, etc.• Machine protection and collimation issues.

Goal • Conceptual design of low energy ring(s) demonstrating basic feasibility. • Identification of critical hardware issues to be addressed in further studies (FP 7).• First order cost estimate.

Time aspects / manpower estimate• Starts after three months with total duration of 36 months. • Participants: CCLRC RAL, CERN, IN2P3, Univ. Uppsala, TRIUMF (Ca).• Manpower requirement: 10 man-years (theoretical design ~6 and technical ~4)

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 15

ST 2: Acceleration in PS and SPSUpgrades and new DesignsMajor Activities

• Beam dynamic simulations for ion acceleration in PS/SPS.• Estimation of effect of large beam losses (PS) and possible solutions.• First technical designs demonstrating the feasibility of critical hardware.• Optics design and beam dynamic simulations for new machines.

Specific Aspects• High intensity ion operation in PS/SPS (space charge issues, etc., cf. LHC ions)• Machine protection and collimation issues (existing machines).

Goal • Proof the feasibility of Beta Beam acceleration in PS and SPS. • First technical design of required upgrades and critical components.• Conceptual design of medium/high energy machine(s) to replace PS and/or SPS.• Identification of critical hardware issues to be addressed in further studies (FP 7).• First order cost estimate.

Time aspects / manpower estimate• Starts after three months with total duration of 36 months. • Participants: CCLRC RAL, CERN, GSI, FNAL (USA).• Manpower requirement: 12 man-years (theoretical design ~8 and technical ~4)

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 16

ST 3: Design of Decay RingMajor Activities• Optics design with beam dynamic simulations for the ion Decay Ring.• First technical designs demonstrating the feasibility of critical hardware.

Specific Aspects• Highest intensity ion operation (space charge issues, etc.)• Injection, accumulation and stacking of ions at high energy.• Machine protection and collimation issues.• Superconducting magnets in high radiation environment

Goal • Conceptual design of the ion Decay Ring.• Identification of critical hardware issues to be addressed in further studies (FP 7).• First order cost estimate.

Time aspects / manpower estimate• Starts after three months with total duration of 36 months. • Participants: CEA, CERN.• Manpower requirement: 12 man-years (theoretical design ~7 and technical ~5).

CERN, 18th Feb. 2004 EURISOL - Beta Beam Design Study M. Benedikt 17

Conclusions

• Beta-Beam Task is well integrated in the EURISOL DS.

• Strong synergies between Beta Beam and several other EURISOL tasks.

• Base line and high energy physics case not covered within EURISOL DS.

• Total integrated man-power foreseen for the Beta Beam task is 38 man-years out of which 13 are requested from the EU.

• Total cost: 3.176 k€ with 1.009 k€ requested from EU.