sbs magnet john j. lerose. assembly drawing of 48d48 magnet as used at bnl (vertical field)
TRANSCRIPT
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)