! L1=L2=4m, A1=20, A2=8, med b/s
MASK/CLEAR
MASK/CLEAR/TIME
L/WAV 1.75 16.5 0.05/LOG
! adjusted to suit weak scatter
L/Q 0.005,0.001,0.008,-0.08,1.0
! strong scatter
!L/Q 0.0035 1.0 0.08/log
L/QXY 0 0.15 .002/lin
! note increase lower time limit here
!BACK/MON/TIMES 85000 98000
BACK/M2 85000 98000
!check BACK/M4
DET/REAR
GRAVITY/ON
!
mask/rear h0
mask/rear h190>h191
mask/rear v0
mask/rear v191
mask/front h0
mask/front h190>h191
mask/front v0
mask/front v191
! dead wire near top
mask/front h156>h159
! spot on top b/s when hit meniscus ???
mask h72>h75+v117>v122
!
mask/time 13000 15250
!mask/time 5000 19200
!masking off beamstop arm 12mm wide at 19 degrees
PRINT not masking beam stop arm, M4 out
!mask/line 13 19 
!
L/R 47 -1 3
!L/SP 1 36864
!MON/LENGTH=17.937 2
!
! use this for rear
MON/DIRECT=DIRECT_11971_4m_Rear_09Mar12.dat
! use for front, this command has to come second!
MON/DIRECT/FRONT=DIRECT_6958_4m_rescaled_09Mar12.dat
MON/TRANS/SPECTRUM=2/INTERPOLATE
TRANS/TRANSPEC=4/SHIFT=-70
!TRANS/TRANSPEC=3
!  set monitor 2 to interpolate
MON/SPECTRUM=2/INTERPOLATE
!PRINT fitting transmissions from 4.1 to 16.5 angstrom
FIT/TRANS/LOG 1.75 16.5
!PRINT FIT/TRANS/OFF
!FIT/TRANS/OFF
!
! 2/11/12 gdw 16176
set centre 267.7 -164.7
!
! 2/11/12 gdw20 16176 8mm beam
set scales 0.1782 1.0 1.0 1.0 1.0
! correction to actual sample position, measured cryo at 320mm before shutter, notionally 81mm before shutter
! DLS set up 81 - 132 =-34
! normal changer offset +53
SAMPLE/OFFSET 53
! Correction to SANS2D encoders in mm 
DET/CORR REAR X -16.0
! note rear Z was 58, but needs change all masks 9/11 on to 47
DET/CORR REAR Z 47.0
! 7/8/12 front at 2.6m is at slightly too high Q values, was X -44
DET/CORR FRONT X -24.0
DET/CORR FRONT Y -20.0
DET/CORR FRONT Z 47.0
DET/CORR FRONT ROT 0.0
! (cf 115D Perkins)  80 is just inside window, 386 instead of DT's 306, but seems to work? , 48 should be central grid
DET/CORR FRONT RADIUS 48.0
DET/CORR FRONT SIDE 0.0
!
!! 2/11/12 MASK123T 4m A1=20,S5=16mm,S6=med,A2=8 Xpress