Giovanni Ciavola, JRA-07 ISIBHI JRA-07 Ion Sources for Intense Beams of Heavy Ions (ISIBHI) EURONS...

EURONS PCC Meeting, Groningen, Holland, 11-12 December 2006 1Giovanni Ciavola, JRA-07 ISIBHI

JRA-07 Ion Sources for Intense Beams of Heavy Ions (ISIBHI)

G. Ciavola

For the ISIBHI collaboration

INFN - GSI - GANIL - JYFL - KVI - TSL - CERN –

LPSC - NIPNE

Scientific highlights of ISIBHI



Improve the knowledge of intense beams production and transport

Fulfil all the needs of the major EU accelerator facilities

Maintain the EU leadership in the field of ECR ion sources

Aims to:



To design, build and test prototypes of ECRIS with a magnetic

field still never reached and frequency ≥ 28 GHz

A Multi-purpose totally Superconducting ECRIS (MS-ECRIS, inspired from the

GyroSerse project), with an adjustable magnetic configuration : Bmax = 4 T; Brad = 2.7

T; large ECR zone, f = 28 GHz according to our scaling laws

A more compact source, with a lower magnetic field and an higher power density

(A-PHOENIX source) with a technology based on HTS coils and permanent magnets

Bmax=3 T; Brad~ 1.7 T to 2.2 T

GOALS



CAD Design achieved (05/2006)

Mechanical parts ordered to industry & to LPSC workshop (10/06)

A-PHOENIX



HTS Coils

2005 HTS Coils builded at

SpaceCryomagnetics LTD

3 T axial field

2006 Coils quench protection

electronics designed and builded at LPSC, delivered

to SpaceCryomagnetics LTD

2004 HTS Coils Specifications

At LPSC

Final Reception Tests at Culham (UK) in December 18th-20th 2006

Delivery at LPSC : January 2007

20°K LHe free



Highlight : Large Permanent magnet hexapole

2005 Hexapole final design

LPSC

6 mm-2.05 T

5 mm-2.1 T

3 mm-2.3 T

The strongest permanent hexapole in the world so far (2T on the magnets) 1.6 T in the plasma chamber (without iron plates)

1.8 to 2.3 T in the plasma chamber using different iron plates geometries

Iron plates width influence on Br

Iron plates in the plasma chamber

wall



A-PHOENIX hexapole assembly status

Last permanent magnets FeNdB received end of July 2006

Lateral hexapoles builded successfully

Main hexapole assembly to start in late december 2006

Up to now, global planning has drifted of ~3 to 4 months

Full program completion by the end of 2008



SERSE MS-ECRIS

f 18 GHz 28-37 GHz

Bradial 1.55 T 2.7 T

Binj 2.7 T 4.5 T

Bext 1.6 T 3.2 T

chamber 130 mm 180 mm

L chamber 550 mm 650 mm

cryostat 1000 mm 1200 mm

L cryostat 1310 mm 1347 mm

Vextr 20-25 kV 40 to 60 kV

LHe consumption

~4 l/h 0

O8+ ~7 pA ~ 20 to 50 pAAr12+ 15 pµA 100 pA

~1 pnA ~0.1 pA

Xe20+ ---- ~50 pA

Pb27+ ---- 40 pA

Au4

5+

MultipurposeFully Superconducting Magnets

adapted to all accelerators

MS- ECRIS



Cryostat &

Magnetic System



Maximum field on conductor

~ 7 T

Coils cos 3 windings

One of the 6 Hexapolar coils



Sextupole winding

4 months delay



MS-ECRIS assembly



Plasma chamber



Injection flange

estimated plasma flux

gas inlets

oven feedthrough

waveguides 28 GHz and

14-18 GHz)

biased disk

plasma diagnostics



MS-MS-ECRISECRIS

60 kVDC

Break

Microwave transmission setup

The refurbishment of the Gyrotron has drifted of 9 months, but will be ready still on time.

MSMS ECRISECRIS

60 kVDC

Break



Movable cooled electrodes UHV vacuum chamber

Extraction system



Inductively heated

2000˙C has been reached

High performances ovens

Resistively heated foil: 2000°C

Space for high size ovens



Test bench layout at GSI



Planning

• Magnetic system and cryostat are expected for the spring 2007

• Mechanics will be available at GSI at beginning of 2007

• Microwave generator and ancillary equipment at same time

• First beam July 2007

• Test with gaseous beams in DC mode: 2nd half 2007

• Test with metallic beams in DC mode: 1st half 2008

• Test in pulsed mode: 2nd half 2008

Giovanni Ciavola, JRA-07 ISIBHI JRA-07 Ion Sources for Intense Beams of Heavy Ions (ISIBHI) EURONS...

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