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MAD description of UMER - Injector

Description of the UMER Injector lattice using the Methodical Accelerator Design (MAD) language. Superseded in June 2006 after moving solenoid.

! Define Magnets
! Focusing quads (-ve for electrons)
OQF: QUADRUPOLE,L=0.0363,K1=-229.0
NQF: QUADRUPOLE,L=0.0372,K1=-223.4
YQF: QUADRUPOLE,L=0.0538,K1=-163.21

! De-Focusing quads (+ve for electrons)
OQD: QUADRUPOLE,L=0.0363,K1=229.0
NQD: QUADRUPOLE,L=0.0372,K1=223.4
YQDR: QUADRUPOLE,L=0.0538,K1=177.89
YQDI: QUADRUPOLE,L=0.0538,K1=177.89

! Note that YQDR (ring) and YQDI (injector) is off-centered and tilted in the horizontal plane
EALIGN,YQDR,DX=0.01389,DTHETA=-0.174533,DS=-0.00123413
EALIGN,YQDI,DX=-0.01389,DTHETA=0.174533,DS=-0.00123413


! Dipoles: Bending, Pulsed, Short, and small/large Flange Dipoles
BD: RBEND,L=0.0386,ANGLE=0.174533,FINT=0.45
PD: RBEND,L=0.0518,ANGLE=0.10472,FINT=0.45
SD: HKICKER
F1D: KICKER
F2D: VKICKER
F2DD: KICKER

!
! How to model the Helmholtz coils and the Earth Field???
!

! Diagnostics: Current Monitor, Phosphor Screen, and Beam Position Monitors
CM: MONITOR,L=0.0
PS: MONITOR,L=0.0
BPM: MONITOR,L=0.05

! Do the Injector Separately, reversing bend angles on Y

SOL: SOLENOID,L=0.045,KS=207.3

STRAIGHT: SEQUENCE
GTV: MARKER, AT=0.0
SOL1: SOL, AT=0.160
S1: SD, AT=0.251
P1: PS, AT=0.2608
M1: BPM, AT=0.328
Q1: NQD, AT=0.400,K1=134.15
S2: SD, AT=0.465
Q2: NQF, AT=0.535,K1=-218.69
BERG: CM, AT=0.617
S3: SD, AT=0.665
Q3: NQD, AT=0.7241,K1=215.16
P2: PS, AT=0.7688
M2: BPM, AT=0.836
Q4: NQF, AT=0.9179,K1=-211.06
ENDM: MARKER, AT=0.9749
ENDSEQUENCE

INJY: SEQUENCE
VK: F2DD, AT=0.0
Q5: NQD, AT=0.0866,K1=225.73
SD5: BD, AT=0.1330,ANGLE=0.0
Q6: NQF, AT=0.2465,K1=-226.91
SD6: SD, AT=0.2776,KICK=0.03491
YQ: YQDI, AT=0.3982
B2: PD, AT=0.4774,ANGLE=-0.10472
QR1: YQF, AT=0.5582
ENDM: MARKER, AT=0.6382
ENDSEQUENCE

INJECTOR: LINE=(STRAIGHT, INJY)
USE,INJECTOR

Created by ramiak
Last modified 2006-08-24 01:28 PM

Note

Posted by ramiak at 2006-08-24 01:24 PM
this uses the old definition of effective length where the field used is the same as the peak field of the magnet.

UMER 2005
Support for the UMER project is being provided by the U. S. Department of Energy.