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Vera Chetvertkova Salvatore Danzeca Janne Holma Giulia Romagnoli Pierre Salou Tim Winkelmann
CAS – CERN ACCELERATOR SCHOOL 2017 CASE STUDY -B
DESIGN A TOP-UP INJECTION SYSTEM FOR A LIGHT SOURCE
The SCLS
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Multipole Kicker Injection
CONVENTIONAL INJECTION
** Masamitsu Aiba, Paul Scherrer Institute 12.03.2017 CERN Accelerator School Erice, Italy
Multipole Kicker INJECTION
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Swiss Light Source
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Swiss Light Source
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Swiss Light Source
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Parameters
SLS top‐up injection based on the conventional injection scheme.
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CIOCCOLATE STREAM NUTS INJECTION
Quad Quad Circulating beam
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CIOCCOLATE STREAM NUTS INJECTION
Quad Quad Circulating beam
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CIOCCOLATE STREAM NUTS INJECTION
Quad Quad Circulating beam
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CIOCCOLATE STREAM NUTS INJECTION
Quad Quad Circulating beam
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CIOCCOLATE STREAM NUTS INJECTION
Quad Quad Circulating beam
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CIOCCOLATE STREAM NUTS INJECTION
Quad Quad Circulating beam KICKER
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Quad Quad Circulating beam KICKER θ
Geometry Considered
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BEAM DYNAMIC APERTURE
I GOAL: INJECTED BEAM IN ACCEPTANCE !!!!
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BEAM DYNAMIC APERTURE
I GOAL: INJECTED BEAM IN ACCEPTANCE !!!!
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BEAM DYNAMIC APERTURE
I GOAL: INJECTED BEAM IN ACCEPTANCE !!!!
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BEAM DYNAMIC APERTURE
I GOAL: INJECTED BEAM IN ACCEPTANCE !!!!
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BEAM DYNAMIC APERTURE
I GOAL: INJECTED BEAM IN ACCEPTANCE !!!!
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BEAM DYNAMIC APERTURE
I GOAL: INJECTED BEAM IN ACCEPTANCE !!!!
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BEAM DYNAMIC APERTURE
I GOAL: INJECTED BEAM IN ACCEPTANCE !!!!
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Reference Paper
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Parametric Calculation
EXCEL PARAMETRIC TOOL
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Parametric Calculation
Injected beam with emittance
Septum thickness
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Parametric Calculation
Injected beam with emittance
Septum thickness
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Parametric Calculation
Injected beam with emittance
Septum thickness
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Parametric Calculation
Injected beam with emittance
Septum thickness
Position KICKER
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Parametric Calculation
Injected beam with emittance
Septum thickness
Position KICKER
KICKER ANGLE
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Parametric Calculation
Injected beam with emittance
Septum thickness
Position KICKER
KICKER ANGLE
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Parametric Calculation
Injected beam with emittance
Septum thickness
Position KICKER
KICKER ANGLE
II GOAL: AVOID COLLISION !!!!
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Septum Strenght
S1= 4.5 m
S0= -3.5 m S=0
14.3 mm
X0 = 31 mm
L = 8 m
Θ = 2.6 mrad
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Septum Strenght
S1= 4.5 m
S0= -3.5 m S=0
14.9 mm
X0 = 31 mm
L = 8 m
Θ = 2.6 mrad
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Septum Strenght
S1= 4.5 m
S0= -3.5 m S=0
14.9 mm
X0 = 31 mm
L = 8 m
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Septum Strenght
S1= 4.5 m
S0= -3.5 m S=0
14.9 mm
X0 = 31 mm
L = 8 m
Septum lenght = 0.8 m Septum field = 0.9 T Septum Thickness = 3 mm
Septum Angle= 5.2 °
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Septum Strenght
S1= 4.5 m
S0= -3.5 m S=0
14.9 mm
X0 = 31 mm
L = 8 m
Septum lenght = 0.8 m Septum field = 0.9 T Septum Thickness = 3 mm
Septum Angle= 5.2 °
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Septum Strenght
S1= 4.5 m
S0= -3.5 m S=0
14.9 mm
X0 = 31 mm
L = 8 m
Septum lenght = 0.8 m Septum field = 0.9 T Septum Thickness = 3 mm
Septum Angle= 5.2 ° Max beam height = 29 cm
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Septum Strenght
S1= 4.5 m
S0= -3.5 m S=0
14.9 mm
X0 = 31 mm
L = 8 m
Septum lenght = 0.8 m Septum field = 0.9 T Septum Thickness = 3 mm
Septum Angle= 5.2 ° Max beam position = 29 cm
QUAD DIAMETER = 40 cm
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Septum Strenght
S1= 4.5 m
S0= -3.5 m S=0
14.9 mm
X0 = 31 mm
L = 8 m
Septum lenght = 0.8 m Septum field = 0.9 T Septum Thickness = 3 mm
Septum Angle= 5.2 ° Max beam height = 29 cm
QUAD DIAMETER = 40 cm
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KICKER DESIGN
B’’= K2 B ρ / l
B = 0.1 T magnetic field
P = c B ρ (P of the circulating beam 2.4 GeV)
ρ = P/ c B = 80 m
l = 0.2 m length of the magnet
l B’’= K2 B ρ / l = 1000 T/m2 sextupole field strength
K2 = 25 m-2
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NEW SLS INJECTION FOR…..
Quad Quad Circulating beam KICKER θ
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NEW SLS INJECTION FOR…..
Quad KICKER
Quad
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NEW SLS INJECTION FOR…..
Quad KICKER
Quad
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NEW SLS INJECTION FOR…..
Quad KICKER
Quad
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NEW SLS INJECTION FOR…..
Quad Quad
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NEW SLS INJECTION FOR…..
Quad Quad
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NEW SLS INJECTION FOR…..
SCLS
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NEW SLS INJECTION FOR…..
SCLS
Swiss Ciocc Light Source!
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