SLAC magnets 10D37  10D45


10D37
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Gap:        3'' 

Length:    94 cm

Weight:   1.1 tons

Field:   0.78 Tm (excitation current 1200 A, booster pump)

Reduce the gap size to  ~1.5 ''



BNL magnet 20II47
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Gap: 2''

Mean effective length: ~49.5''  (126 cm)

Weight:  26 tons (weight of 30D72 magnet is 64 tons)

Maximum field:  1.75 T