EURISOL DS : Status and Future

Yorick Blumenfeld

CERN-ISOLDE*

We acknowledge the financial support of the European Community under the FP6 “Research Infrastructure Action - Structuring the European Research Area” EURISOL DS Project Contract no. 515768 RIDS . The EC is not liable for any use that can be made of the information contained herein.

* On leave from IPN Orsay

EURISOL DS

• LatestTechnical Achievements

• Managerial achievements

• Proposals for the Future

= 0.3 = 0.78

Ionsources

RFQ176 MHz

HWRs176MHz

Elliptical ISCL704 MHz

1 GeV/qH-, H+,

3He++

1.5 MeV/u

100 keV

60 MeV/q 140 MeV/q

>200 MeV/qD+, A/q=2

Chargebreeder

Low-resolutionmass-selector

UCx

target

1+ ionsource

n-generator

= 0.065= 0.14= 0.27= 0.385

QWRISCL

88 MHz

3 QWRs ISCL

88 MHz

8 HWRsISCL

176 MHz

SpokeISCL

264 MHz

20-150 MeV/u (for 132Sn)

To low-energy areas

Secondaryfragmentation

target

A possible schematic layout

for a EURISOL facility

4-MWtargetstation= 0.47

3-spoke ISCL 325 MHz

High-resolutionmass-selector

Bunching RFQ

To medium-energy experimental areas

= 0.65

Elliptical ISCL704 MHz

= 0.09, = 0.15

H-

H+, D+,3He++

9.3- 62.5 MeV/u 2.1-19.9 MeV/u

To high-energyexperimental areas

RFQs

Chargeselector

One of several100-kW directtarget

stations

Spoke cavities development @ IPN Orsay

•2 prototypes at =0.15 and =0.35 fabricated and successfully tested at 4.2 K.•This technology is the basis for the 3-Spoke required by the Driver linac

Spoke cavity tuner

EURISOL Task 8: Sébastien Bousson – IPN Orsay

Liquid Hg converters

Coaxial Guided StreamWindowless Transverse Mercury Film

Off-line test in Hg loop at IPUL

Mats Lindroos

Liquid mercury converter

Mats Lindroos

The CGS designThe WTMF

design

New Target Concept

17th September 2007

100kW Targets

T. Stora

CaO344 online Apr 2007Experimental data

1.0E+01

1.0E+02

1.0E+03

1.0E+04

1.0E+05

1.0E+06

0.01 0.1 1 10tdelay+1/2tcollec (s)

β c

ou

nt

pe

r tc

oll

ec

(s

-1)

FO

OF

OO

FF

O: OpenF: Closed

35Ar

E. Bouquerel, L. Penescu, E. Barbero, D. Carminati, R. Catherall, B. Crepieux, J. Lettry, S. Marzari, E. Noah, T. Stora, R. Wilfinger

Closed valveleak rate : 0.3%

Ratio 34Ar : 95% (OO)/(OF+FO) 35Ar : 83%

Symmetry : 34Ar : 94%(FO)/(OF) 35Ar : 92%

Ion source efficiency :(FO or OF) Ar : 5.1%(OO) Ar : 4.9%

17th September 2007

ISOL targets and ion sources

44 Targets 44 Ion-sources 11 Front-end

Target materials (30):

• Refractory oxides and carbides (Al2O3, SiC)

• Solid metals (Ta, Nb, Mo)

• Molten metals (Pb, La, Sn).

ISOLDE UCxpressed pellets

HfO2 felts

m

m

nm/sub-m SiC

m

High density UCx

L. Tecchio fo

r Task 4

Ion sources (>5):

• Surface

• FEBIAD, ECR

• RILIS

Ta foils

17th September 2007

100kW oxide target design

• Prototype test preparation at TRIUMF

• Proton E=0.5 GeV, Pmax= 50 kWwobbling envisaged

Liquid metal loop

Mats Lindroos

Diffusion chamber

Irradiation cell

Heat exchangerEM pump

To be tested at IPUL

MUST2 + TIARA

Testing Instrumentation Concepts for EURISOL

Task 10 : Physics and InstrumentationRobert Page

• EURISOL has a stable Design, validated by worldwide experts

• During the final year, the work is concentrated on prototype building and testing

Management Achievements• EURISOL User Group: Angela Bonaccorso, chair. First

workshop Jan. 2008; Charter established; election of executive committee: 27candidates for 8 seats, 354 voters.

• Site Investigation Panel : A. Shotter, G. Cuttone, D. Geesaman, A. Mueller, S. Myers. 3 meetings. Will report to steering committee in November

• Third annual report accepted for scientific part. Comments on financial part received last week.

• Review panels organized for MMW converter and post accelerator.

• Production of brochure for General Public• Next Town Meeting March 30-April 1 2009 in Pisa.• Defining strategy for the future of EURISOL

Proposal for the Future of EURISOL

• EURISOL has made use of EC instruments: 5th framework RTD and 6th framework DS.

• Major advances have been achieved and a large community with varied technical expertise has developed and must continue to be nurtured

• Full engineering report necessary before Pre-construction phase: No (evident) EC instrument for funding.

• We (the EURISOL DS MB) propose to form a EURISOL collaboration consisting of laboratories interested in participating in the continuing effort.

Role of the EURISOL Collaboration

• Follow the scientific and policy recommendations of NuPECC

• Promote and Coordinate the R&D to further EURISOL, including work at intermediate generation facilities

• Solicit support of the funding agencies, in particular through the NuPNET Eranet, and explore other funding opportunities (EC, intercontinental…)

• Interact with the EC >> entry on the ESFRI list.• Goal : Produce an engineering report for the facility• Support the EURISOL User Group; organize Town

Meetings• Has been endorsed by NuPECC, thank you!

Multi-Community Design Study on High Power Targets : Neutrinos, Neutrons and Ions

• Establish limits for Liquid metal and solid target technology• Study common infrastructure and collect data for licensing

work• Computer studies of cavitation and bubble development,

determination of shock fronts and studies of the beam/pressure pulse

• Off-line studies at liquid metal target laboratories such as IPUL in Latvia, SNS in Oak Ridge and J-Parc in Tokai

• Beam tests to study cavitation and mitigation at high instantaneous beam intensity facilities such as ISOLDE and AGS

• In-beam tests at a high power facility of new concepts

Under Discussion

Organization of the EURISOL Collaboration

• Collaboration board representing participants >> Elects collaboration chairperson and appoints project leader.

• Project office supported by a modest collaboration fee (~5000 E/year/lab).

• Engineering work coordinated by project leader and funded by funding agencies (+ other), preferably coordinated by NuPNET.

• Work divided into work packages

EURISOL Work Packages (3-5 years)

• Management (Project Office)• RIB production: Specific prototyping and tests

– Neutron converter in beam– Fission target in n flux– New target materials; liquid metal direct target– Novel beam splitter system…

• Prototyping at “intermediate” facilities; linked to EUR-ISOL Net in ENSAR

• Documentation and licensing• Infrastructure• Updating the science case : coordinated by EURISOL

User group

Requests

• Very approximate price tag: 2M€/year for 4 years.

• We would like the support of NuPECC to implement this plan (and welcome your suggestions).

• Collaboration launched by the EURISOL Steering Committee in Nov. 2008

• Startup should be in fall 2009