Overlap between field maps
Posted: Fri 24 Mar 2023 10:54
Dear Didier,
After I looked through Help document of TraceWin, I found it did not explain deeply how to treat overlapping field between field maps.
As shown in the following picture, there is an overlap between Dipole field map and Quad field map, and how about the field strength in this zone?
(1) Let's have one example: for dipole field strength: Bx_d, By_d, Bz_d; and for quadrupole field strength: Bx_q, By_q, Bz_q. Field strength in the Overlap is (Bx_d+Bx_q, By_d+By_q, Bz_d+Bz_q) for one point, is it true?
(2) If (1) is true, and if I replace Quad field map by Dipole field map in the picture, will the field strength in Overlap become double? (assum dipole field map is uniform)
(3) What should I do if I don't want the magnetic field values in overlapping areas to superimpose?
Best regards,
B TANG
After I looked through Help document of TraceWin, I found it did not explain deeply how to treat overlapping field between field maps.
As shown in the following picture, there is an overlap between Dipole field map and Quad field map, and how about the field strength in this zone?
(1) Let's have one example: for dipole field strength: Bx_d, By_d, Bz_d; and for quadrupole field strength: Bx_q, By_q, Bz_q. Field strength in the Overlap is (Bx_d+Bx_q, By_d+By_q, Bz_d+Bz_q) for one point, is it true?
(2) If (1) is true, and if I replace Quad field map by Dipole field map in the picture, will the field strength in Overlap become double? (assum dipole field map is uniform)
(3) What should I do if I don't want the magnetic field values in overlapping areas to superimpose?
Best regards,
B TANG