Skip to content.

UMER

Sections
Personal tools
You are here: Home » Technical Data » MAD description of UMER - Injector

MAD description of UMER - Injector

Description of the UMER Injector lattice using the Methodical Accelerator Design (MAD) language. Reflects the repositioning of the SOLENOID in June 2006.
Note that this reflects the use of Santiago's effective hard edge model, so the strengths of quads and solenoid need be divided by some factor (in the magnet table) to get the peak strengths, e.g. for use with the full profile in WARP.  Note also that the strengths quoted are for matching the 23.5 mA beam.  For matched settings for other beams, see the Matching Settings table.
! Define Magnets
! Focusing quads (-ve for electrons)
NQF: QUADRUPOLE,L=0.05164,K1=-161.02
YQF: QUADRUPOLE,L=0.0745,K1=-121.30

! De-Focusing quads (+ve for electrons)
NQD: QUADRUPOLE,L=0.05164,K1=161.02
YQDR: QUADRUPOLE,L=0.0745,K1=129.35
YQDI: QUADRUPOLE,L=0.0745,K1=129.35

! 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=0.0651,KS=143.97

STRAIGHT: SEQUENCE
GTV: MARKER, AT=0.0
SOL1: SOL, AT=0.1766
S1: SD, AT=0.251
P1: PS, AT=0.2608
M1: BPM, AT=0.328
Q1: NQD, AT=0.400,K1=96.69
S2: SD, AT=0.465
Q2: NQF, AT=0.535,K1=-166.52
BERG: CM, AT=0.617
S3: SD, AT=0.665
Q3: NQD, AT=0.7241,K1=152.13
P2: PS, AT=0.7688
M2: BPM, AT=0.836
Q4: NQF, AT=0.9179,K1=-150.44
ENDM: MARKER, AT=0.9749
ENDSEQUENCE

INJY: SEQUENCE
VK: F2DD, AT=0.0
Q5: NQD, AT=0.0866,K1=156.36
SD5: BD, AT=0.1330,ANGLE=0.0
Q6: NQF, AT=0.2465,K1=-166.94
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 04:02 PM

© UMER, 2005-2012
The UMER Project is supported by the U.S. Department of Energy, Office of Science, and by the US Department of Defense, Office of Naval Research and the Joint Technology.