Medical Gantry Design of type M. Daum et al. Graphic Transport 1st order input file

The ASCII file displayed below represents an input file (FOR001.DAT) for the beam optics program TRANSPORT. It contains all fit sequences, which demonstrate the technique for achieving the desired optical behavior by reversing the proton beam line for the medical gantry and applying the necessary constraints. The isocentricity is checked with TRANSPORT's layout coordinate feature.

/Medical gantry of type M. Daum & B. Jost (Annual. Rep. 1984), inverted beam line/
0
15. 11.0 /MEV/ .001 ;
15. 1.0 /MM/ .1 ;
 
16. 16. 0. /X0/ ; (Initial beam line position)
16. 17. 0. /Y0/ ;
16. 18. 0. /Z0/ ;
16. 19. -90. /THE0/ ; (Initial beamline direction)
16. 20. 0. /PHI0/ ;
13. 12. ; (Output is beamline layout in global coordinates)
 
1. 5. 5. 5. 5. 0. 1.0 696.0 /BEAM/ ;  (Ekin = 230 MeV, dp/p = 1%)
13. 48. ; (Angles for Bends)
 
3. 1.362;
5. 0.3 3.7896 38. /Q1/ ;
3. 0.2 ;
5. 0.3 -2.9279 38. /Q2/ ;
3. 0.4 ;
16. 5. 37.5 ;
16. 7. 0.5 ;
16. 8. 4.4 ;
20. 180. ;
2. 0.0 /A/ ;
4. 1.9 67.5 0. /B1/ ;
4. 1.9 67.5 0. /B1/ ;
2. 0.0 /B/ ;
20. -180. ;
3. .4;
5. 0.3 4.2632 38. /Q3/ ;
3. .2 ;
-10. 3. 3. 33. .1 /FIT2/ ;
5. 0.35 -3.8012 38. /Q4/ ;
3. 1.05 ;
-10. 1. 1. 15. .1 /FIT2/ ;
3. 1.05 ;
5. 0.3 5.9743 38. /Q5/ ;
3. 0.2 ;
5. 0.3 -5.3188 38. /Q6/ ;
-10. 3. 3. 25. .1 /FIT2/ ;
3. 0.4   ;
2. 0. ;
4. 0.65 22.5 0. /B2/ ;
-10. 3. 3. 25. 0.1 /FIT2/ ;
4. 0.65 22.5 0. /B2/ ;
2. 0. ;
3. 0.35 ;
-10. -1. 6. 0. .001 /FIT1/ ;
-10. -2. 6. 0. .001 /FIT1/ ;
-10. 1. 1. 30. 0.1 /FIT2/ ;
5. 0.3 4.4087 38. /Q7/ ;
3. .2 ;
5. 0.3 -4.1048 38. /Q8/ ;
3. 0.9 ;
3. 0.5 /PROT/;
24. 1. 1. 1. ; (put sigmax in reg1)
24. 3. 3. 3. ; (put sigmay in reg3)
25. 1. 3. 2. 2. ; (put reg1-reg3 in reg2)
24. 2. 2. 4. ; (put sigmax' in reg4)
24. 4. 4. 6. ; (put sigmay' in reg6)
25. 4. 6. 2. 5. ; (put reg4-reg6 in reg5)
-10. 9. 2. 0. .03 /FIT3/ ; (set reg2 as constraint--->sigmax-sigmay=0)
-10. 9. 5. 0. .03 /FIT3/ ; (set reg5 as constraint--->sigmax'-sigmay'=0)
-10. 2. 1. 0. .1 /FIT3/ ; (waist in x)
-10. 4. 3. 0  .1 /FIT3/ ; (waist in y)
3. 0.5 ;
SENTINEL
//
-1
5.01 /Q3/ ;
5.01 /Q4/ ;
5.01 /Q5/ ;
5.01 /Q6/ ;
10.0 /FIT1/ ;
10.0 /FIT2/ ;
SENTINEL
//
-1
5.0 /Q3/ ;
5.0 /Q4/ ;
5.0 /Q5/ ;
5.0 /Q6/ ;
-10.0 /FIT1/ ;
-10.0 /FIT2/ ;
5.01 /Q7/ ;
5.01 /Q8/ ;
10. /FIT3/;
SENTINEL
//
-1
5.01 /Q5/ ;
5.01 /Q6/ ;
SENTINEL
//
-1
5.01 /Q3/ ;
5.01 /Q4/ ;
10.0 /FIT1/ ;
10.0 /FIT2/ ;
SENTINEL
/*PLOT*/
-1
5.01 /Q1/ ;
5.01 /Q2/ ;
SENTINEL
SENTINEL

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Last updated by Urs Rohrer on 9-Feb-2006