Status Report of the Heavy Ion Source R&D for Spiral - Spallation ...
Status Report of the Heavy Ion Source R&D for Spiral - Spallation ...
Status Report of the Heavy Ion Source R&D for Spiral - Spallation ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
<strong>Status</strong> <strong>of</strong> <strong>the</strong> <strong>Heavy</strong> <strong>Ion</strong><br />
<strong>Source</strong> R&D <strong>for</strong> <strong>Spiral</strong>2<br />
T.Thuillier 1 , T.Lamy 1 ,C.Peaucelle 2 , P.Sortais 1<br />
1) LPSC, 2) IPNL<br />
T.Thuillier<br />
1
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
T.Thuillier<br />
2
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
<strong>Status</strong> <strong>of</strong> <strong>the</strong> <strong>Spiral</strong>2 Construction<br />
Main building including <strong>the</strong> CW LINAC schedule on time<br />
Building ready mid 2011<br />
First beam accelerated in 2012<br />
Accelerator under ground<br />
-9.6 m<br />
LINAC<br />
NFS<br />
Injector S 3<br />
T.Thuillier<br />
3
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
A new ECRIS <strong>for</strong> A/Q=3 heavy ion production<br />
Priority <strong>for</strong> experiments with stable beams in 2012 and<br />
2013<br />
beams <strong>for</strong> S 3<br />
A new 28 GHz ECRIS is now budgeted<br />
A/Q=6 LEBT is an optional upgrade<br />
GANIL<br />
Today<br />
18 GHz ECRIS A/Q=3<br />
28 GHz ECRIS A/Q=6<br />
28 GHz ECRIS A/Q=3<br />
Energy = 2-14.5 A.MeV<br />
6.10 14 pps<br />
6.10 13 pps<br />
6.10 12 pps<br />
T.Thuillier<br />
4
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
New LEBT<br />
<strong>Spiral</strong>2 tasks at LPSC 2008-2013<br />
Continue R&D on A-PHOENIX on one hand<br />
Build <strong>the</strong> LEBT with PHOENIX and commission it<br />
on <strong>the</strong> o<strong>the</strong>r hand<br />
Manage <strong>the</strong> future new 28 GHz ion source<br />
construction<br />
SSI Hall<br />
A-PHOENIX<br />
<strong>Spiral</strong>2 beam line under construction : october 2008<br />
PHOENIX V2<br />
T.Thuillier<br />
5
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
A-Ph.<br />
18 GHz<br />
Planning <strong>for</strong> ECRIS and LEBT installation @ <strong>Spiral</strong>2<br />
Construction<br />
At LPSC<br />
Choose new 28 GHz<br />
ECRIS<br />
1st beam @<br />
LPSC<br />
Tests A-PHOENIX<br />
18,28 GHz<br />
Commissioning<br />
At LPSC<br />
Construction<br />
New ECRIS<br />
Moving to<br />
<strong>Spiral</strong>2<br />
1st year<br />
beams<br />
1st beam @<br />
SPIRAL2<br />
2008 2009 2010 2011 2012 2013<br />
LEBT A-PHOENIX New ECRIS<br />
?<br />
Installation<br />
@<strong>Spiral</strong>2<br />
commissioning<br />
@ LPSC<br />
T.Thuillier<br />
6
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
PHOENIXV2<br />
The <strong>Heavy</strong> <strong>Ion</strong> Low Energy Beam line <strong>of</strong> <strong>Spiral</strong>2<br />
Designed by CEA, GANIL, IPNO<br />
High current transport, high efficiency<br />
Ø 150 mm pipe<br />
UHV Seals<br />
Ok <strong>for</strong> 0.4 π.mm.mrad<br />
(1σ norm RMS)<br />
Quadrupole Triplet<br />
Faraday Cup<br />
Solenoide<br />
Slits<br />
Sextupole<br />
X&Y Allison<br />
Emittancemeter<br />
Pr<strong>of</strong>ilers<br />
Bending Magnet<br />
11O mm gap<br />
Ligh <strong>Ion</strong> LEBT<br />
Deuterons<br />
<strong>Source</strong><br />
CEA IRFU<br />
T.Thuillier<br />
7
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
Low Energy Beam line construction at LPSC<br />
Priority task <strong>for</strong> 1 year<br />
Milestones on time! First part <strong>of</strong> <strong>the</strong> <strong>Spiral</strong>2 accelerator<br />
builded so far<br />
Assembly at LPSC :<br />
june 2008 -> july 2009<br />
First beam analyzed:<br />
May 2009<br />
Very promising beam line<br />
<strong>Heavy</strong> ions<br />
LEB @ LPSC<br />
1st dummy ion spectrum<br />
25 kV<br />
50W HF<br />
Low charge states<br />
Low resolution (EPICS & Co.<br />
to be optimized)<br />
T.Thuillier<br />
8
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
<strong>Ion</strong>s<br />
Extraction<br />
1st year ECRIS on <strong>Spiral</strong>2 LEBT : PHOENIX V2<br />
2 layer Hexapole<br />
Br~1.35 T<br />
At wall<br />
1.25-0.5-2.1 T<br />
Bz Axial Mirror<br />
60 kV<br />
core<br />
Gas / oven<br />
feedthrough<br />
18 GHz Microwave<br />
T.Thuillier<br />
9
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
PHOENIX V2 upgrades <strong>for</strong> <strong>Spiral</strong>2<br />
Improvement <strong>of</strong> <strong>the</strong> axial Magnetic pr<strong>of</strong>ile<br />
1.7 T -> 2.1 T at injection<br />
Improvement <strong>of</strong> <strong>the</strong> radial magnetic field<br />
1.2-> 1.35 T at chamber wall<br />
bias disk added<br />
oven access added (Ø13 mm)<br />
Aluminum plasma chamber<br />
New 60 kV ion extraction system (triode)<br />
Improved injection flange (RF,oven, bias disk)<br />
New extraction<br />
1.7<br />
Axial magnetic mirror pr<strong>of</strong>ile<br />
Iron vacuum<br />
2.1 Tesla<br />
Zoom <strong>of</strong> magnetic peak improvement<br />
T.Thuillier<br />
10
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
Planning <strong>of</strong> <strong>the</strong> LEBT Commissioning<br />
Commissioning 2010<br />
Automats<br />
Detectors, slits<br />
Vacuum<br />
Command control (EPICS)<br />
Optics commissioning, spectrum<br />
ECRIS Commissioning : PHOENIX V2 @ 18 GHz / 60 kV<br />
Ar, O, He, Ne , S, Si , Ca… A/Q=3 and A/Q=6<br />
Emittance measurements and feedback with TRACEWIN<br />
to check transport code<br />
Moving to <strong>Spiral</strong>2 in 2011<br />
Starting up in 2012 at GANIL<br />
T.Thuillier<br />
11
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
Special Plasma chamber cooled with 6 channels + iron inserts<br />
<strong>Status</strong> <strong>of</strong> A-PHOENIX R&D<br />
A hybrid ECRIS :<br />
with a large permament magnet hexapole<br />
2 HTS He free coils<br />
2 small hexapoles under HTS coils<br />
1 room temperature Coil<br />
B r= 1.55 T<br />
natural<br />
B r = 2.1 T (special<br />
chamber)<br />
Radial magnetic<br />
confinement<br />
Axial magnetic confinement<br />
B inj ≤3 T, B ext ≤ 3 T<br />
T.Thuillier<br />
12
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
<strong>Status</strong> <strong>of</strong> <strong>the</strong> (difficult) A-PHOENIX commissioning<br />
Interlock Failure after 3 weeks <strong>of</strong> experiments<br />
2 small hexapoles<br />
500 W <strong>of</strong> HF <strong>for</strong> 45 minutes without water cooling in <strong>the</strong><br />
plasma chamber…<br />
demagnetization <strong>of</strong> <strong>the</strong> two small hexapoles under <strong>the</strong> HTS<br />
coils (-60%)…<br />
Only -2% on <strong>the</strong> main hexapole (phew…)<br />
-60% -22%<br />
Tests continued until june 2008 with damaged hexapoles<br />
Small hexapoles successfully fixed up July 2009<br />
T.Thuillier<br />
13
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
<strong>Status</strong> <strong>of</strong> <strong>the</strong> (difficult) A-PHOENIX commissioning<br />
A one year stop <strong>of</strong> R&D to build <strong>the</strong> Low Energy Beam line<br />
From june 2008 to july 2009<br />
Partial time work, experiments cumulated <strong>for</strong> 15 days only<br />
Commissioning program is still at 18 GHz stage<br />
The magnetic field being nominal <strong>for</strong> a 18 GHz source, it has to work, more<br />
tests and tries are required<br />
A persistent bad microwave coupling<br />
A few mechanical changes on HF injection were tried<br />
Situation improved slightly with changes<br />
700 µA <strong>of</strong> Ar 8+ today only, <strong>for</strong> 1 mA expected at least<br />
Still not satisfactory…<br />
Ar 8+<br />
Best Z tuning <strong>for</strong> Ar 8+<br />
T.Thuillier<br />
14
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
<strong>Status</strong> <strong>of</strong> A-PHOENIX special plasma chambers<br />
First 1.8 T plasma chamber successfully<br />
welded, ready <strong>for</strong> operation<br />
Vacuum sealed and waterpro<strong>of</strong><br />
Laser welding technique<br />
Ni based brazing abandonned (leaks)<br />
Second 2.1T chamber is machined, laser<br />
welding end 2009<br />
1st welding on fake chamber<br />
T.Thuillier<br />
15
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
Planning <strong>of</strong> A-PHOENIX tests to come<br />
Tests <strong>for</strong> 2010, parallel to <strong>the</strong> LEB commissioning<br />
Investigation <strong>of</strong> HF coupling with <strong>the</strong> variation <strong>of</strong> <strong>the</strong><br />
waveguide location on <strong>the</strong> injection flange (18 GHz)<br />
Installation and tests <strong>of</strong> 1st special plasma<br />
chamber(1.8 T) (18 GHz, 28 GHz)<br />
Installation and tests <strong>of</strong> second plasma<br />
chamber(2.1T) (18 GHz, 28 GHz)<br />
T.Thuillier<br />
16
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
Towards a cryogenic permanent magnet hexapole<br />
At cryogenic temperature Permanent Magnets<br />
features very interesting properties<br />
+10% Remanence at 100-150 K +300 to + 400% Coercivity at 100-150 K<br />
Spin Rotation Transition Phase<br />
Ref:T. Hara et al., Phys. Rev. ST Accel. Beams 7, 050702 (2004)<br />
T.Thuillier<br />
17
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
The Cryogenic Hybrid ECRIS Concept<br />
An enhancement <strong>of</strong> A-PHOENIX design to hold<br />
standard 28 GHz axial magnetic field<br />
1 stage<br />
cryocooler<br />
head<br />
Super insulator<br />
No risk <strong>of</strong> demagnetization (coercivity μ0HcJ~7 Tesla)<br />
Higher resistance to X-rays<br />
Larger plasma chamber volume (ø 140 mm)<br />
Iron yoke<br />
Standard He Free Low temperature Superconductors<br />
Hexapole<br />
FeNdB @<br />
100 K<br />
vacuum<br />
T.Thuillier<br />
18
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
RadialMagneticField@TD 2<br />
1.75<br />
1.5<br />
1.25<br />
1<br />
0.75<br />
0.5<br />
0.25<br />
CHECRIS estimation by simulation<br />
Br= 1.8 T at Al plasma chamber<br />
wall with iron welded in <strong>the</strong><br />
cryostat cylinder<br />
Br=2 T with iron welded in<br />
plasma chamber wall + Al liner<br />
Iron in Cryostat + Al chamber<br />
Iron in chamber + Al liner<br />
plasma chamber wall<br />
10 20 30 40 50 60 70<br />
Radius @mmD<br />
4T<br />
0.6 T<br />
2.2 T<br />
T.Thuillier<br />
19
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
60 GHz program<br />
LPSC-LNCMI collaboration since 2 years<br />
4 years ISTC scientific collaboration (IAP NN, LPSC, LNCMI, CERN,<br />
Istituto di Fisica del Plasma Milano) accepted July 2009 1M$<br />
Investigation <strong>of</strong> magnetic field configurations<br />
Beam developments @28GHz and 60 GHz<br />
Helixes<br />
Copper<br />
water<br />
7 T 4.6 T 3.5 T<br />
2.1 T ECR zone<br />
Deionized<br />
water inlet<br />
Valve<br />
Flowmeter<br />
Flexible power cables<br />
Deionized<br />
water outlet<br />
Flexible pipes<br />
‘Fast’ developments<br />
Safe technology<br />
Cheap<br />
Suitable <strong>for</strong> R&D<br />
Poster O47: Louis Latrasse SEISM: A 60 GHz CUSP ECRIS<br />
Magnetic measurement<br />
systems<br />
Flexible power<br />
cables<br />
T.Thuillier<br />
20
ICIS’09, Gatlinburg, TN, USA, 21-25 September 2009<br />
SPECIAL DISCOUNTS FOR STUDENTS !<br />
LPSC - GRENOBLE - France<br />
19 th International Workshop on<br />
ECR <strong>Ion</strong> <strong>Source</strong>s<br />
Week 34, August 2010<br />
Phd students,young<br />
scientists,note on your diaries<br />
Talk to your chief !<br />
A unique chance to exchange with<br />
ECR ion sources experts<br />
in a human size workshop<br />
contact : ecris10@lpsc.in2p3.fr<br />
T.Thuillier<br />
21
Change language