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SPL to PS2 transfer line: Design assumptions. Brennan Goddard, Christoph Hessler, Malika Meddahi. Many thanks to W. Bartmann, M. Benedikt, J.-P. Corso’s team, F. Gerigk, M. Jones, D. Missiaen, Y. Papaphilippou, M. Poehler. Driving parameters.

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Spl to ps2 transfer line design assumptions

SPL to PS2 transfer line: Design assumptions

Brennan Goddard, Christoph Hessler, Malika Meddahi

Many thanks to W. Bartmann, M. Benedikt, J.-P. Corso’s team, F. Gerigk,

M. Jones, D. Missiaen, Y. Papaphilippou, M. Poehler

TE / ABT / BTP


Driving parameters
Driving parameters

Expression fractional loss from A.J. Jason et al, IEEE Trans.Nucl.Sci. NS-28, 1981

http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=4331890&isnumber=4331887

TE / ABT / BTP


Longitudinal tunnel section
Longitudinal tunnel section

C

TE / ABT / BTP


Ps2 position w r t existing tunnels
PS2 position w.r.t. existing tunnels

PS2, new lattice,moved by 2 cell lengths

SPS

TT10

PS2, fodo lattice, original position

PS2, new lattice,moved by 3 cell lengths

33 m

TI 2

TE / ABT / BTP


Ps2 lss for inj extr
PS2 LSS for inj. / extr.

Courtesy W. Bartmann

Prim

2nd sec

MTEBKT

DuK

InjK

InjS

MTEBK

MS2

MS1

ES

ExtK

BD+1st sec

~14 mm trajectory bump at the

chicane magnets

TE / ABT / BTP


Beam line geometry ps2 entrance
Beam line geometry: PS2 entrance

Inj. point in PS2 LSS, at the location of the chicane magnets

TE / ABT / BTP


Beam line geometry spl exit point
Beam line geometry: SPL exit point

  • SPL version with 501.1m [F. Gerigk 21 Jan. 09]

  • Point C: Xing above TI 2

  • Coordinates from M. Jones on 2 Feb. 09

TE / ABT / BTP


Preliminary beam line design
Preliminary beam line design

  • Design at 0 current

  • Geometry of the line: dipole magnets

TE / ABT / BTP


Spl to ps2 beam line geometry

2800

2700

2600

2500

2400

2300

2200

2100

800

900

1000

1100

1200

1300

1400

1500

SPL to PS2 beam line geometry

SPS

new transfer line from PS2 to SPS

TT10

new transfer line from SPL to PS2

PS2 (scheme with 2 cells extra)

200 m

TI 2

TE / ABT / BTP


Zooming into inj extr ps2 lss

2550

2545

2540

2535

2530

2525

1180

1185

1190

1195

1200

Zooming into inj. / extr. PS2 LSS

new transfer line from PS2 to SPS

new transfer line from SPL to PS2

strippingfoil

PS2

20 m

TE / ABT / BTP


Spl to ps2 beam line geometry1
SPL to PS2 beam line geometry

SPL end point

horizontal bending magnets

100 m

B

C

E

A

D

injectionchicane

magnet

vertical bending magnets

8.3 mrad

0.085 T

TE / ABT / BTP


Next steps
Next steps

  • Confirm Twiss parameters at SPL exit

  • Design at 0 current with Quad + correctors + BI (matching, tilt of beams…)

  • Current effects with ABP colleagues

  • Rebunching / phase rotation

  • Revisit PS2 to SPS TL with new layout (2 cells + emittance exchange insertion)

  • Naming conventions?

    • TT11 for PS2 to SPS?

    • TTL1 for SPL to PS2?

TE / ABT / BTP


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