SBS MagnetJohn J. LeRose

Assembly drawing of 48D48 magnet as used at BNL (vertical field)

53 different configurations from start to finish

SBS_D33

SBS_D73_40

SBS_D87_53_61&30

14α

x’

y’

SBS_D33

mm

RadiansB

dBBendBeam

mTB

mTcmkGdB

dBdBdB

y

cGeV

y

yxy

045.0501003.9

1003.9

3564.33)10(

)1013.30(13.30

cossin

4

4'

3'

'

SBS_D33

SBS_D87_53_61&30

Bends 10 GeV/c beam 9.95x10-5 Radians→ 5 mm 50 m downstream

SBS_D73_40

Bends 10 GeV/c beam 1.9x10-4 Radians→ 9 mm 50 m downstream

→ 45 mm 50 m downstream

SBS_D33 SBS_D73_40 SBS_D87_53_61&30

48D48 Required Modifications

• Horizontal field (tip it on its side)• Beam path through the yoke

→ Coil Modifications, i.e. New Coil(s)!

• Field Clamp→ Bucking coil(s) (reduce field on the

beam line)