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["Palmer, Robert" <palmer AT bnl.gov>]

Here are the magnet settings for the High Acceptance (HA) case together with 
plot of positions and betas vs length. The pdf file gives the beam parameters 
for 275 on 10.1 for 4 cases: HA, HL, FHA, FHL. The latter two with cooling.

Bob
## 20/3//2017 forward hadrons at 275 GeV/c
## using Palmer's file is beta82cp
## For 'High Acceptance' parameters giving, with electron energy 10.1 GeV, 
Lum = 2.86 10^33
## Plots and other parameters will be distributed soon
##
## The design reflects uses the same magneta as "data82cg2" but different 
fields
##
## Warning: 
## This design was simulated by a home made program and may not exactly agree 
with
## madX and other codes
## The detector solenoid is not included
## ----------------------------------------------------------
## Initial conditions at IP
##
## beta*_x  beta*_y  g emit_x g emit_y  angle_x  angle_y
##  [m]      [m]      [nm]     [nm]     [mrad]   [mrad]

 5.6620   0.0420   16.5000   6.1000      22      0  
## -----------------------------------------------------------
## magnet parameters
##
##name  center_z center_x center_y radius   length   angle      B      
gradient
##           [m]      [m]      [m]      [m]      [m]    [mrad]     [T]     
[T/m]
##
  B0pf    5.099  -0.0132    0.00   0.1700    1.200   -22.00    1.700     0.00 
 
  Q1pf    7.289   0.0020    0.00   0.0370    1.981    -4.00    0.000   -72.57 
 
  B1pf   13.198   0.0097    0.00   0.0890    4.800     2.80   -3.516     0.00 
 
  Q2pf   17.457   0.0484    0.00   0.1250    2.520    -2.00    0.000    -4.46 
 
  Q3pf   37.192   0.3692    0.00   0.0500    1.200    16.20    0.000    24.32 
 
  B2pf   44.091   0.4107    0.00   0.0510    7.800    -1.80    4.397     0.00 
 
  Q4pf   53.988   0.2701    0.00   0.0500    1.200   -22.00    0.000    28.96 
 
  B3pf   66.185  -0.0789    0.00   0.0500    8.800   -41.80    4.400     0.00 
 
  NQpf   72.984  -0.4202    0.00   0.0600    1.200   -63.54    0.000   -52.52 
 
  Q5pf   88.380  -1.3975    0.00   0.0400    1.000   -63.47    0.000    55.00 
 
  H1pf   93.754  -1.7386    0.00   0.0500    8.750   -63.45    0.000     0.00 
 
  Q6pf  104.626  -2.4288    0.00   0.0400    2.000   -63.45    0.000    27.50 
 
## x=0, z=0, y=0 is at the center of the IP
## The z axis is aligned with the inital mean hadron direction
## The apertures of B2 and B3 may be too large requiring changes in settings
## H1 is the spin rotator assumed not to focus or bend
## Q5 and Q6 are place holder for strengths to be set by matching
## 
------------------------------------------------------------------------------
##
## parameters at the Roman Pots
##
##loc     Z      beta_x   beta_y   adv_x    adv_y    Disp 
##        [m]    [m]      [m]      rad/pi    rad/pi   {m}
##
R1      31.00    892.5   402.00   0.360    0.51    0.258 
R2      35.00   1195.6   281.26   0.361    0.51    0.322 
R3      83.55     14.7    12.54   0.464    0.72   -2.365 
R4      86.40      5.0     4.25   0.572    0.84   -2.763 
## Phase advance x in R3 should be kept to approx 0.5-0.6 and may need 
tweeking
## beta_y          in R3 should be 12 m or more
##--------------------------------------------------------------------------------
## The next iteration will/may: 
## 1. lower beta_x  at B2 and B3 to allow use of RHIC magnets 
## 2. require  a new quad between Current Q1 nd B1 for the VHL case
## 3. a lower beta_x at R3 and R4 to maintain acceptances
## 4. more space on the sides of the neutron detector
## 5. Move R1 to beyond the neutron detector
## These will presumably be for after the March review

Attachment: rad82cp1.eps
Description: rad82cp1.eps

Attachment: bet82cp1.eps
Description: bet82cp1.eps

Attachment: PAR14HA2.pdf
Description: PAR14HA2.pdf