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ENGE01 status

ENGE01 status. 22 /June/2012 Toshi Gogami. Contents. ENGE+SPL TOSCA New map debut !. SPL + ENGE ( TOSCA calculation ). Process. Ever ENGE+SPL 3D-CAD  SAT file Create combined model directly New strategy ENGE + SPL 3D-CAD  SAT file  SPL SPL + tilt ….(1) ENGE

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ENGE01 status

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  1. ENGE01 status 22/June/2012 Toshi Gogami

  2. Contents • ENGE+SPL TOSCA • New map debut !

  3. SPL + ENGE ( TOSCA calculation )

  4. Process • Ever • ENGE+SPL 3D-CAD  SAT file • Create combined model directly • New strategy • ENGE + SPL 3D-CAD  SAT file  • SPL • SPL + tilt ….(1) • ENGE • ENGE + tilt …..(2) • Combine (1) and (2) Errors….

  5. The way to SPL+ENGE mag. Field map • SPL • Fill holes in CAD to avert volume mesh errors. • Bvs. current density scan instead of B-I curve.  Set the current density which can reproduce the measurements of magnetic flux density. • SPL + tilt ….(1) • Read precise positions and angles in global coordinates from 3D-CAD file. • Input • With no symmetry • ENGE • Fill holes in CAD to avert volume mesh errors. • B vs. current density scan instead of B-I curve.  Set the current density which can reproduce the measurements of magnetic flux density. • ENGE + tilt …..(2) • Read precise positions and angles in global coordinates from 3D-CAD file. • Input • With no symmetry • Combine (1) and (2) • Set coordinates system to the same as GEANT4 code • Solve  Map For SPL ; Tilt = rotation

  6. SPL Not going to be saturated.  Need to be checked. SPL holes • Chose 1050.0 [ A/cm2] • (to be ~1.7 T )

  7. SPL + tilt (with no symmetry) Usually we use symmetry This time I tried modeling without symmetry for the further calculation including ENGE.

  8. SPL + tilt (with no symmetry)

  9. ENGE

  10. ENGE (current density scan) ( -50.0 , -75.0 , 0.0 ) • Chose 155.0 [A/cm2] • ( ~1.56 T )

  11. SPL + ENGE model

  12. Shapes of Background air One box background Could not meshed well anyhow…. Two boxes background (Matching for the meshing is better ! )

  13. Same coordinate system as GEANT4 code Rotated to set them same as GEANT4 code

  14. Incidence of an electron( check ) Track Particle = electron p = 300 MeV φ= 1.67 rad θ = 87.2 mrad Passed through Okayasu Dr thesis

  15. Effects from the other magnet • The effect on magnetic field from the other side of magnet. • 4 Points • P1 = (40 , 15 , 100) • P2 = (20 , 10 , 80 ) • P3 = (10 ,  5 , 70 ) • P4 = ( 5 ,  3 , 60 ) • 5 sets • SPL + ENGE model • SPL (ON) + ENGE (ON) .... Set1 • SPL (OFF) + ENGE (ON) ....Set2 • SPL (ON) + ENGE(OFF) ....Set3 • ENGE model ....Set4 • SPL model ....Set5 Checked : Set1 = Set2+Set3 Comparison 1 Comparison 2 OK

  16. Set4 – Set2 (comparison 1) Absolute values Huge difference 1 2 3 Ratio 4

  17. Set5 – Set3 (comparison 2) Absolute values 0.3 T ! 1 2 3 Ratio 4 Huge difference

  18. Set5 – Set3 (comparison 2) Changed • Central Magnetic flux density • Shape of fringe fields By By SPL + ENGE (OFF) model = Set3 ONLY SPL model = Set5 By on this line (Center of SPL gap) X : -40 ~ 50 cm Y,Z : 0.0 , 33.95 cm

  19. Conclusion from those comparison Big difference ! The effects on the calculation of magnetic fields • Depend on the shape and the configuration of magnets • Optical nature is intricately changed according to these plots which shows the effects for all components are different. To obtain magnetic fields which have practical nature of optics • When one calculate a magnet, put another magnet on the setup. (relatively finer mesh) • Add up those magnetic field together later. • Calculate magnetic field for those magnets at once. (relatively rough mesh)  Now available

  20. Mesh size dependence y SPL + Tilt Checked coordinates P1 = (40 , 15 , 100) P2 = (20 , 10 , 80 ) P3 = (10 ,  5 , 70 ) P4 = ( 5 ,  3 , 60 ) (Bx, By , Bz) • 3cm mesh • 1: -22.1 , 86.2 , -26.7 • 2: -225.0 , 301.8 , -263.4 • 3: -1297.8 , 2129.1 , -1081.5 • 4: -3248.6 , 9181.8 , -1033.9 • 4cm mesh • 1: -22.1 , 86.4 , -26.7 • 2: -24.7 , 301.9 , -262.4 • 3: -1298.0 , 2136.3 , -1084.7 • 4: -3277.5 , 9187.5 , -1035.8 • 12cm mesh • 1: -22.4 , 85.5 , -26.8 • 2: -25.9 , 292.3 , -266.1 • 3: -1308.9 , 2146.9 , -1108.5 • 4: -3209.4 , 9170.5 , -1007.3 x z Change this air’s mesh size No big differences. < A few 10 G level

  21. SPL + ENGE GEANT4 Simulation(ENGE01) • The latest version of ENGE01 (tfarm1:/home/dragon/ENGE01) • Revision 174 (subversion) • With new map ( One map for SPL+ENGE ) pe = 270 MeV pe = 310 MeV pe = 390 MeV Map : combine_splenge_rough_19June2012.map θ : 0.1 ± 0.1 φ : 1.57 ± 1.5

  22. Summary • ENGE+SPL TOSCA calculation • New map is now available(combined version) • To obtain magnetic fields which have practical nature of optics • When one calculate a magnet, put another magnet on the setup. (relatively finer mesh) • Calculate magnetic field for those magnets at once. (relatively rough mesh) • Now available • SPL + ENGE Geant4 Simulation • Rev. 174

  23. END

  24. singed

  25. ENGE

  26. SPL Target to center position :  • x : -6.395 cm • y : 0.0 cm • z : 33.95218 cm conductor center • x : 13.67 cm • y : 0.0 cm • z : 33.95218 cm

  27. SS

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