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trim_strength.txt

Kyle Hazelwood, 01/15/2015 12:00 PM

 
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Dave and Stan,
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The numbers in the R50 *Corrector Strength page are in unit of
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Micron-Radius/Amp. They are used in conversions from beam 
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deflection angles to Amps.
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Most of Hori trims are Fermilab ones with field strength of
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.0034745 TM/Amp. This divided by 3.3356*8.9 gives the number of 
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117.04 micron-rad/Amp.
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Most of Vert trims are Fermilab one with field strength of
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.00219924 TM/Amp. This divided by 3.3356*8.9 gives the number of 
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74.08 micron-rad/Amp.
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Those having different numbers are for magnets from LEP. You or
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Ming Chen or Bruss or Cons provided the information. 
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After you straight out these number you can modify the tables in
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the program. Make a hard copy after you done. 
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Let me know if you have question or want me to to do something.
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Thank you
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Information on MI8 line trims:
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MI8 line trims:
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802		HDC
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803-820		MCH
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821-845		MCV
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846-852		RMCV (90 degree rotated MCV)
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This table from Bruce Excel sheet is wrong. According to Yang's
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data, all vertical trims are MCV type and all horizotal trims
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are MCH type with 10 exceptions:
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HT800 ?
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HT802 is HDC
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HT804,06,20,30,32,34,36,46 are RMCV type
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	max field(TM)  at max amps	Rad/amp		uRad/amp
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HDC	0.035		10.		.0001179	117.9
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MCH	0.029		 2.5		.0003907	390.7
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MCV	0.019		 2.5		.000256		256.
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(http://www-ap.fnal.gov/~bcbrown/Sources/RR_correctors_from_LEP.html)