Magnetic Field Variations with Different Steels
Explore the differences in magnetic field characteristics using Wuzheng's sPHENIX model with Steel 1006 and Steel 1020. Analyze the B-H curves, magnetic field distributions, and contours to understand the impact of different steel materials on magnetic properties.
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Presentation Transcript
Differences in magnetic field with different steels I have used Wuzheng s model of sPHENIX which has used a file iron6a.bh, something that Wuzheng has used in g-2 for 1006 steel (with his smoothing) J. Haggerty pointed me to http://www.fieldp.com/magneticproperties.html#Steel1020 and I have to do H = B/ R (CGS) to make the B-H curve (and dropped the 1st non-zero point as its H is bigger than the 2nd H that Opera doesn t like). 1
Opera I have used Opera 18.0 in fido of ITD (which would disappear at the end of . Nov. 2016) to run Wuzheng s 3D model: sphenix_m1q_dz=0_24-coils.oppre For the run using Steel 1020, I started before 4 pm last Friday (Sept. 23) and it finished after 2 am on Sat. (Sept. 24) 10 hours. It has taken into account everything that exists in the model ( ~ |700 cm| ). Mostly, r 80 cm and |z| 100 cm. to consider the field inside TPC, I ve typically plotted: 2
Bz (magnetic field) in y=0 plane (x/y/z coordinates in cm) (Gauss) ~Steel 1006 3
Bz (magnetic field) in y=0 plane (x/y/z coordinates in cm) (Gauss) ~Steel 1020 4
Bz (magnetic field) wrt X anz Z (beam-axis) Bz(0,0,0) = 14001 G (Gauss) (cm) ~Steel 1006 5
Bz (magnetic field) wrt X anz Z (beam-axis) Bz(0,0,0) = 13979 G (Gauss) (cm) ~Steel 1020 6
Contour of B (from 5 G to 50 G) (x/y/z coordinates in cm) ~Steel 1006 7
Contour of B (from 5 G to 50 G) (x/y/z coordinates in cm) ~Steel 1020 8
B (to larger extent in x and z) (Gauss) (cm) ~Steel 1006 9
B (to larger extent in x and z) (Gauss) (cm) ~Steel 1020 10
