05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 1

EUROBeta BeamsKick-off meeting

Elena Wildner, CERN

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 2

Outline

FP6 baseline Some important issues

FP7 Contributions from participants

Timeline Deliverables Milestones

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 3

Outline

FP6 baseline Some important issues

FP7 Contributions from participants

Timeline Deliverables Milestones

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 44

.

Neutrino Source

Decay Ring

Ion production ISOL target &

Ion source

Proton Driver

Decay ring

B = 1500 Tm B = ~6 T C = ~6900 m Lss= ~2500 m

6He: = 100 18Ne: = 100

SPS

Acceleration to medium energy

RCS, 1.5 GeV

PS

Acceleration to final energy

PS & SPS

Beam to experiment

Ion acceleration Linac

Beam preparation ECR

pulsed

Ion production Acceleration Neutrino source

Detector in the Frejus tunnel

Existing!!!

8.7 GeV

93 GeV

Beta Beam Baseline Scenario

FP6 – Accelerator Chain Beta Beam baseline parameters A. Fabich, E. Wildner / CERN RCS preliminary design – A. Lachaize, A. Tkatchenko /

CNRS/IN2P3/IPN Orsay Decay ring preliminary design - A. Chancé and J. Payet /

CEA/DSM/DAPNIA Preliminary study of the collimation and absorbers in the

Decay Ring – E. Wildner, A. Fabich, M. Stockner / CERN Assymetric bunch merging in the Decay Ring – S. Hancock,

M. Benedikt / CERN PS activation and collimation studies M. Kirk, P. Spiller, J.

Stadlmann, C. Omet / GSI Darmstadt Decay losses along the accelerator chain of the beta beam

A. Fabich, M. Benedikt / CERN

FP6 – Production Production of 6He and 18Ne for EURISOL DS - T. Stora and EURISOL

task 3 participants / CERN + CEA Saclay 6He from a BeO target surrounding a n converter – optimization N. Thiollière

and coworkers CEA Saclay 18Ne from a MgO target - Factor 5 below requirements

Direct production, alternative production methods – M. Loiselet S. Mitrofanov / UCL Laboratoire du Cyclotron 7Li (p,2p)6He 16O (3He,n) 18Ne – Interesting, large targets and intense 3He beams

Ionization and cooling ring - C. Rubbia, A. Ferrari, Y. Kadi, V. Vlachoudis et al. / CERN Novel ideas with new baseline isotopes 8Li and 8B A general concept - could be used beyond EURISOL and beta beams

Ionization and bunching - T. Lamy and T. Thuillier/ LPSC Grenoble 60 GHz ion source design – EURISOL task 9

An accumulation ring at low energy – A. Källberg M. Lindroos / MSL and CERN

EURISOL DS task 12:“Beta Beam aspect”D1 Design of low energy ring(s)

No Milestones and expected results of this task Months due achieved

D1 /M1.1 Final choice on baseline design 4 √

D1 /M2.1 Freeze in/out parameters 9 √

D1 /M2.2 First order optics design 18 √

D1 /M2.3 First design low energy ring(s) 45  

D2 Ion acceleration scenarios in PS and SPS

No Milestones and expected results of this task Months due achieved

D2 /M3.1 Freeze in/out parameters 9 √

D2 /M3.2 Identification of limitation 18 √

D2 /M3.3 Study of ion acceleration in PS and SPS and possible upgrade 45  

D3 Design of decay ring

No Milestones and expected results of this task Months due achieved

D3 /M4.1 Freeze input parameters 9 √

D3 /M4.2 First order optics design 18 √

D3 /M4.3 Decay ring design 45  

D4 Conceptual design report for a beta beam facility

M. Benedikt and M. Lindroos

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 8

Outline

FP6 baseline Some important issues

FP7 Contributions from participants

Timeline Deliverables Milestones

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 9

Ion production

6He (tungsten or liquid metal as neutron converter and BeO as target)

18Ne (spallation, direct on magnesium oxide) Short-fall of ions if classical methods used Proposal to produce other isotopes

Isotopes like 8Li and 8B better Higher Q -> higher energy neutrinos

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 10

Ion acceleration

Linac Multiple charge state acceleration?

Accumulation in the PS of 20 RCS bunches PS2?

SPS, new 40 MHz and 200 MHz systems give 10 ns long bunches into the decay ring.

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 11

Neutrino production

Decay ring 7000 m 36 % straight sections, 5T superconducting magnets (6He up to =150)

Stacking (dilated life-time) by assymetric merging Do we need it? If we can relax on the dutyfactor we can fill

the complete Decay Ring and we can use a ”barrier bucket filling scheme” (ref. FNAL anti-protons)

Collimation and absorption of decayed ions

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 12

Outline

FP6 baseline Some important issues

FP7 Contributions from participants

Timeline Deliverables Milestones

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 13

New ions: Production Ring (CERN) Gas target or liquid metal film target?

Supersonic gas target Argonne National lab. liquid metal film target?

FFAG or ”classical” ring lattice

Production Ring

“Beam Cooling with ionisation losses”C. Rubbia, A. Ferrari, Y. Kadi, V. Vlachoudis

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 14

ECR (LPSC, GHMFL)

60 GHz ECR for bunching studies 6He and 18Ne contunued for reach of high efficiencies.

Study and first tests on bunching 8Li and 8B

Ion source technology (magnetic structures)

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 15

Collection Device ( UCL, INFN) Prototype of production ring collection device

extraction efficiency of 8Li measured 8B extraction tested on-line

Release efficiencies

Production cross sections (theory & experiment)

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 16

Decay Ring ( CERN, CEA) New baseline scenario for new beta emmitters

Superconducting Dipoles

Magnet Protection

Collimation

Revise stacking process

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 17

Decay Ring, stacking ( CERN)

Stacking (dilated life-time) by assymetric merging. If we can relax on the dutyfactor we can fill the complete

Decay Ring and we can use a ”barrier bucket filling scheme” (ref. FNAL anti-protons)”

He

Ne

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 18

Other contributions Supersonic Gas injector (PPPL)

Alternative ION collection devices (ANL)

Beam tracking code ACCIM (TRIUMF)

Analysis and theoretical work on results at LPSC (The institute of Applied Physics in Nizhny Novgorod)

Princeton Plasma Physics LaboratoryLaboratoire de Physique Subatomique et de Cosmologie de Grenoble

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 19

Outline

FP6 baseline Some important issues

FP7 Contributions from participants

Timeline Deliverables Milestones

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 20

FP7

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 21

Staff effort

05/02/08EUROnu, Elena Wildner, CERN,

05/02/2008 22

Kick-off FP7 WP4 beta beams

A kick-off meeting will be organized in spring 2008

Thanks to: P.Delahaye M.Lindroos A.Fabich and M.Benedikt!