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Correction to Zeuthen chicane input #590

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Apr 26, 2024
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Correction to Zeuthen chicane input #590

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563bb1c
Examples for 3D space charge benchmarking
cemitch99 Jun 7, 2022
ff21b61
Update input_kurth_10nC.in
cemitch99 Dec 5, 2022
222adfa
Add README documentation for examples/distgen
cemitch99 Apr 16, 2024
22feb49
Correct C++ input file.
cemitch99 Apr 26, 2024
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[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Apr 26, 2024
63dca74
Delete examples/kurth/input_kurth_10nC.in
cemitch99 Apr 26, 2024
ba1bc6a
Modify Python and MAD-X input
cemitch99 Apr 26, 2024
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Delete examples/distgen/README.rst
cemitch99 Apr 26, 2024
97428c5
Update run_chicane.py
cemitch99 Apr 26, 2024
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8 changes: 4 additions & 4 deletions examples/chicane/chicane.madx
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Expand Up @@ -8,11 +8,11 @@ D3: drift, L=2.0;
! theta=0.50037/10.35;
! inv_rho=1.0/10.35
! TODO put `angle=theta` for SBENDs and `e1=theta` for DIPEDGEs with their right sign
SB1: sbend, L=0.50037, angle=-0.04834492753623188, e1=0.000, e2=0.000, k1=0.00;
SB2: sbend, L=0.50037, angle=0.04834492753623188, e1=0.000, e2=0.000, k1=0.00;
SB1: sbend, L=0.500194828041958, angle=-0.04834492753623188, e1=0.000, e2=0.000, k1=0.00;
SB2: sbend, L=0.500194828041958, angle=0.04834492753623188, e1=0.000, e2=0.000, k1=0.00;
! dipole edge elements
DIPE1: dipedge, H=-0.0966183574879227, e1=-0.048345620280243, fint=0.000, hgap=0.000, tilt=0.00;
DIPE2: dipedge, H=0.0966183574879227, e1=0.048345620280243, fint=0.000, hgap=0.000, tilt=0.00;
DIPE1: dipedge, H=-0.096653578905433, e1=-0.048345620280243, fint=0.000, hgap=0.000, tilt=0.00;
DIPE2: dipedge, H=0.096653578905433, e1=0.048345620280243, fint=0.000, hgap=0.000, tilt=0.00;

CHICANE: Line=(M1,SB1,DIPE1,D1,DIPE2,SB2,D2,SB2,DIPE2,D1,DIPE1,SB1,D3,M1);
USE, SEQUENCE = CHICANE;
12 changes: 6 additions & 6 deletions examples/chicane/input_chicane.in
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Expand Up @@ -26,15 +26,15 @@ lattice.elements = monitor sbend1 dipedge1 drift1 dipedge2 sbend2 drift2 \
lattice.nslice = 25

sbend1.type = sbend
sbend1.ds = 0.50037 # projected length 0.5 m, angle 2.77 deg
sbend1.rc = -10.35
sbend1.ds = 0.500194828041958 # projected length 0.5 m, angle 2.77 deg
sbend1.rc = -10.3462283686195526

drift1.type = drift
drift1.ds = 5.0058489435 # projected length 5 m

sbend2.type = sbend
sbend2.ds = 0.50037 # projected length 0.5 m, angle 2.77 deg
sbend2.rc = 10.35
sbend2.ds = 0.500194828041958 # projected length 0.5 m, angle 2.77 deg
sbend2.rc = 10.3462283686195526
Comment on lines +29 to +37
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If you want, we could use user-defined constants and the parser here to make it a bit clearer how those (projected) parameters come to play.


drift2.type = drift
drift2.ds = 1.0
Expand All @@ -44,13 +44,13 @@ drift3.ds = 2.0

dipedge1.type = dipedge # dipole edge focusing
dipedge1.psi = -0.048345620280243
dipedge1.rc = -10.35
dipedge1.rc = -10.3462283686195526
dipedge1.g = 0.0
dipedge1.K2 = 0.0

dipedge2.type = dipedge
dipedge2.psi = 0.048345620280243
dipedge2.rc = 10.35
dipedge2.rc = 10.3462283686195526
dipedge2.g = 0.0
dipedge2.K2 = 0.0

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7 changes: 4 additions & 3 deletions examples/chicane/run_chicane.py
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Expand Up @@ -48,17 +48,18 @@

# design the accelerator lattice
ns = 25 # number of slices per ds in the element
rc = 10.35 # bend radius (meters)
rc = 10.3462283686195526 # bend radius (meters)
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We could use Python math here to make it a bit clearer how those (projected) parameters come to play.

psi = 0.048345620280243 # pole face rotation angle (radians)
lb = 0.500194828041958 # bend arc length (meters)

# Drift elements
dr1 = elements.Drift(ds=5.0058489435, nslice=ns)
dr2 = elements.Drift(ds=1.0, nslice=ns)
dr3 = elements.Drift(ds=2.0, nslice=ns)

# Bend elements
sbend1 = elements.Sbend(ds=0.50037, rc=-rc, nslice=ns)
sbend2 = elements.Sbend(ds=0.50037, rc=rc, nslice=ns)
sbend1 = elements.Sbend(ds=lb, rc=-rc, nslice=ns)
sbend2 = elements.Sbend(ds=lb, rc=rc, nslice=ns)

# Dipole Edge Focusing elements
dipedge1 = elements.DipEdge(psi=-psi, rc=-rc, g=0.0, K2=0.0)
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