Difference between revisions of "Helmholtz Coils Settings for Different Magnet Configurations"

From Hall A Wiki
Jump to: navigation, search
Line 12: Line 12:
 
| ON || ON || 17.242 || 13.582 || 25.00G at 51.77<sup>o</sup> *
 
| ON || ON || 17.242 || 13.582 || 25.00G at 51.77<sup>o</sup> *
 
|-
 
|-
| ON || OFF || 22.612 || 12.752 || 20.70G at 60.58<sup>o</sup>
+
| ON || OFF || 22.612 || 12.752 || 25.96G at 60.58<sup>o</sup>
 
|-
 
|-
| OFF || ON || 17.702 || 12.889 || 21.88 at 53.98<sup>o</sup>
+
| OFF || ON || 17.702 || 12.872 || 21.87G at 53.98<sup>o</sup>
 
|}
 
|}
  

Revision as of 07:45, 15 October 2022

<< Back

TO can change the settings within the red circle. Theta should stay at 90, but you will change phi based on the first table on this page. Once you've entered the correct numbers, click the blue button that says "Start Rotation" and wait for the field to adjust.

Target operator should make sure that the holding field is set properly for each magnet configuration. The last column shows what settings need to be manually changed.

BigBite SuperBigBite Bx Bz HH Coils Settings
OFF OFF 23.072 12.042 26.03G at 62.44o
ON ON 17.242 13.582 25.00G at 51.77o *
ON OFF 22.612 12.752 25.96G at 60.58o
OFF ON 17.702 12.872 21.87G at 53.98o
*Settings used during compass measurements.

Extra information for fields:

  • The desired Bx is 21.672G and Bz is 12.462G for 25G at 60.1o.
  • The table below is used to account for fringe fields from the other magnets.
Magnet Configuration Bx Bz
Background -1.4 +0.42
SBS and BB and Background +4.43 -1.12
SBS and Background +3.97 -0.41
SBS +5.37 -0.83
BB +0.46 -0.71