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YB0 Hall sensor data analysis MTCC -2006 and Nov 2008

YB0 Hall sensor data analysis MTCC -2006 and Nov 2008. Sorina Popescu Texas Tech University. Overview. I looked on the following measurements: 2006 and 2008 Hall measurements registered on MTCC and last November Magnet readings (in Ampere) for the same period –

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YB0 Hall sensor data analysis MTCC -2006 and Nov 2008

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  1. YB0 Hall sensor data analysisMTCC -2006 and Nov 2008 Sorina Popescu Texas Tech University

  2. Overview • I looked on the following measurements: • 2006 and 2008 • Hall measurements registered on MTCC and last November • Magnet readings (in Ampere) for the same period – • many recorded files, but only few could be used. • Hall plate location’s coordinates (from Slava and Alberto): • Angle = 255 • L1 x=-0.56, y=-4.805, z=1.273 m • L2 x=-0.7891, y=-5.66, z=1.273 m • L3 x=-1.06374, y=-6.685, z=1.273 m • Angle = 285 • TC x=0.56805, y=-3.958, z=1.273 m(?) • L1 x=0.795, y=-4.805, z=1.273 m • L2 x=1.0241, y=-5.66, z=1.273 m • L3 x=1.29874, y=-6.685 z=1.273 m

  3. Hall sensors location on YB0 – positive side 255 0 285 0 TC L1 L2 L3 Sector 10

  4. MTCC2 period : Magnet values (A) only this period seemed to have ~ synchronous Magnet current and Hall sensors readings

  5. 2006 11 02: node 59 yb0 positive angle 285; Btot for MB-L1, L2,L3 and TC @19142 A Mag value (Tesla) Time:

  6. 2006 11 02: node 59 yb0 positive angle 285; Btot for MB-L1, L2,L3 and TC time 11:30-11:50 Time:

  7. 14 -11-2008 : node 59 yb0 -2850; Btot for MB-L1, L2,L3 and TC @19142 A Mag value (Tesla) Time:

  8. Hall sensor readings at L1, L2,L3,TC at 2850 on MTCC2 & 14/11/08 Btot (Tesla) TC L1 L2 L3 R(m) R(m): TC(3.9), L1(4.8), L2(5.7), L3(6.08)

  9. Hall readings (2006/2008) at L1, L2,L3, and TC for 19144 A and 18160A – angle=285 ~3% ~4% Btot(2008)\Btot(2006) ~6% ~7% TC L1 L2 L3 R(m): On average ~5% 2008 vs 2006

  10. 2008 10 16: node 57 yb0 - L1-L2-L3- angle 255 positive @ 18160 A Mag value (Tesla) Time: • Comment: 2006 data were unusable: • Oct 20 : • Hall-sensor readings started at 17:43:56 • I = 7812 A • Magnet was ramping down : flat top was in the morning • Oct 27: • Flat top was at I=16732 • Nov 02 • Hall sensor readings are not correct

  11. Hall readings (2008) at L1, L2,L3, for 18160 A angle=255 Btot- (Tesla) R(m): Btot @ 18160 angle 255 vs 285 at 18:00 Uniform field

  12. B map for L1 angle 255, B@3.8T Difference between map and Hall data           map     Hall probes'08TC   0.42 T          0.39  T L1    1.10 T         0.96  T L2    1.18 T         0.89  T L3    1.13 T         0.82  T From Martijn

  13. Conclusions • Hall sensor readings (time sampling ~ 20 s, and not constant) are not easy to synchronise with the magnet readings (time sampling 60 s ..seems to be constant) • For future readings should be out synchronise • 2008 vs 2006 data shows on average 5% difference • Btot for 255 vs 285 is good- field is uniform • Endcap files were recuperated – • The rest of the slides have plots per field component for people interested

  14. 2008 11 14: node 59 yb0 - tc-285 positive Btot Btot (Tesla) Bx, By ~ 0 Time: Bz

  15. 2008 11 14: node 59 yb0 - l1-285 positive Btot Btot (Tesla) Bx, By ~ 0 Time: Bz

  16. 2008 11 14: node 59 yb0 – l2-285 positive Btot Btot (Tesla) Bx, By ~ 0 Time: Bz

  17. 2008 11 14: node 59 yb0 – l3-285 positive Btot Btot (Tesla) Bx, By ~ 0 Time: Bz

  18. 2008 11 14: node 59 yb0 – l3-285 positive BX and BY Bx Btot (Tesla) By Time:

  19. 2006 11 02: node 59 yb0 – l1-285 positive Btot Btot (Tesla) Bx, By ~ 0 Time: Bz

  20. 2006 11 02: node 59 yb0 – l2-285 positive Btot Btot (Tesla) Time: Bx, By ~ 0 Bz

  21. 2006 11 02: node 59 yb0 – l3-285 positive Btot Btot (Tesla) Bx, By ~ 0 Time: Bz

  22. 2008 10 16: node 57 yb0 – l1-255 positive Btot (Tesla) Time:

  23. 2008 10 16: node 57 yb0 – l2-255 positive Btot (Tesla) Time:

  24. 2008 10 16: node 57 yb0 – l3-255 positive Btot (Tesla) Time:

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