Robin FERDINAND, Guillaume Normand; Marco Di Giacomo ...

Robin FERDINAND, Guillaume Normand; Marco Di Giacomo; Franberg Hanna; Omar Kamalou; Jean-Michel Lagniel; Alain Savalle; Didier Uriot; Franck Varenne

209/20/2018 THPO047 - R. Ferdinand

Started Cool down started. RF when safety authorization

Particles H+ D+ ions optionA/Q 1 2 3 6

Max I (mA) 5 5 1 1Max energy (MeV/A) 33 20 15 8.5

Max beam power (kW) 165 200 45 51

10/09/2018 3injecteur SPIRAL2

Significant efforts to obtain results, conditioning now coming to an end Started on October 2015… far from full time Not finished but on a good path, mainly because we have a better

conditioning procedure

New procedure – LLRF improvementsHold the nominal A/Q = 3 voltage (114kV) for a few hours, enough for beam measurementIntegration of a PLL


0:00

1:00

2:00

3:01

4:01

5:02

6:02

11h5

0-20

h20

20h5

5-3H

553h

55-1

2h50

12h5

0-21

h21

h-5h

5h-1

3h13

h-21

h15

22h-

6h6h

-14h

14h-

22h

22h-

6h05

6h05

-14h

2016

h-24

h0h

00-8

h30

8h30

-17h

17h3

0-1h

1h-9

h9h

-17h

17h-

1h1h

-9h

9h-1

7h17

h-1h

1h-9

h9h

-18h

3018

h-21

h12

h-20

h15

12h-

20h1

520

h15-

4H15

4h15

-12h

1512

h15-

20h1

520

h15-

4H15

4h15

-12h

3012

h30-

20-3

020

h30-

4h30

4h30

-7h5

017

h-3h

118 kV CW maximum operation time before a spark – May 9-22

5mA In

5mA Out


rf operation stable and reliable for Proton/Helium, Oxygen


18O6+18O6+RFQ

LEBT1 LEBTc D-Plate


18O6+18O6+RFQ

LEBT1 LEBTc D-Plate

εxx’ /εyy’ (π.mm.mrad) βxx’ / βyy’(mm/π.mrad)

αxx’ / αyy’

Simulation 0.40 / 0.41 0.7 / 3.5 -0.6 / -3.0

Measurement 0.40 / 0.58 0.6 / 4.0 -0.5 / -3.3

9THPO047 - R. Ferdinand

y = 25.465x2 + 56.789x + 44.923R² = 0.9963

0

20

40

60

80

100

120

-2 -1.5 -1 -0.5 0 0.5 1

z² (m

m²)

T11

oxygène 18 : 0.754 pi.deg.MeV

09/20/2018

Make an second order fit of the curve: z2=f(T11)

numeric method (Linear approach)


y = 25.465x2 + 56.789x + 44.923R² = 0.9963

0

20

40

60

80

100

120

-2 -1.5 -1 -0.5 0 0.5 1

z² (m

m²)

T11


Particle Tracewin(π.deg.MeV)

Measured(π.deg.MeV)

Diff.

Proton 0.034 0.039 +15%

Helium 0.19 0.13 -32%16O6+ 0.72 0.64 -11%18O6+ 105kV 0.73* 0.74 +1%18O6+ 113kV 0.78 0.81 +4%

09/20/2018




y = 25.465x2 + 56.789x + 44.923R² = 0.9963

0

20

40

60

80

100

120

-2 -1.5 -1 -0.5 0 0.5 1

z² (m

m²)

T11


Particle Tracewin(π.deg.MeV)

Measured(π.deg.MeV)

Diff.

Proton 0.034 0.039 +15%

Helium 0.19 0.13 -32%16O6+ 0.72 0.64 -11%18O6+ 105kV 0.73* 0.74 +1%18O6+ 113kV 0.78 0.81 +4%

09/20/2018

* Removing the tail



RFQ cavity conditioned at nominal voltage (114kV)RFQ specifications reached (100% trs, CW) and RFQ beams as expected.Very good agreement measurements vs TraceWinsimulations for our three reference particle beams RFQ simulations are relevant enough to be used as

starting point for linac injection.Next : Ready for the linac !

Come and see us at the poster


12THPO047 - R. Ferdinand09/20/2018

Robin FERDINAND, Guillaume Normand; Marco Di Giacomo ...

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