BINP experience in magnet production Sample

Example of MLS Dipole modeling Number of magnets8 Bending angle, deg45 Bending radius, mm1528 Gap, mm50 ± 0.02 Field range, Tup to 1.5 Good field area, mm 2 60 x 36 Homogeneity dB/B  2.5x10 -4

E e, MeV B, Т ∆B/B± (60 x 36 mm 2 ) I, А I. w, A. t Example of MLS Dipole modeling A (EBG, Germany) B=1.3 TB=0.21 T 1.44 T 1.31 T 0.21 T 200 mm х y 1 2 3

Accuracy of lamination profile d-30  m d+30  m h=100  m w=300  m + 15  m -15  m +15  m 1  В 

Model«lam_model»«solid_model» Lenght 1108 mm К уп zz xx L eff, mm Chamfer 13 mm х 45  3D modeling of magnetic fields  B 0 =1.305 T ;  L eff /L eff =  L eff /L eff = Т “lam” 1.3 Т “solid”

B=1.305 T B=0.213 T Model «lam»«solid» К I, A B, T L eff, m h (1/m) k (1/m 2 ) m (1/m 3 ) n (1/m 4 ) D modeling of magnetic fields

1 – central yoke 2 – glued end yoke 3 – box of steel plates 4 - geosigns 5 – coil supports MLS Dipole yoke design Stabolit 20 Stabolit A

MLS Dipole yoke manufacture 5330 kg

Mechanical parameters of yoke ParameterTS   Length, mm 1108  ± 0.43 Distance, mm 1082  ± 0.11 gapTech Spec   h 1, mm ± ± h 2, mm ± ± h 3, mm ± ± Yoke deflection, mm< 0.3 Non-parallelism A и B, mm< 0.5 Non-plateness С на 100 mm, mm< 0.03 Non-plateness D на 100 mm, mm< 0.03 Non-parallelism N and F, mm< 0.05

Coil production CoilsMainCorrection (1%) Iw, kA.t I, А6315 wire 21 x 12/  5 мм  1.5 мм R main 20 mOhm R cor 2.9 ohm PP 6 atm F16 l/min

Geo-sign alignment

MLS Dipole 8 3 ноги 370  0.2 мм

Hall probe measurement Current 100 mA Magnetic sensivity ~ 124  V/mT U lim < 30  V TC MC+ U lim  2.7 ppm/°С X H12 =130  mm ∆X=10  mm  Y=  0.04 mm Z=3  0.15 mm 1 – Hall probes 2 – temperature sensor 3 – NMR probe (10 -6 )

Hall probe measurement Magnetic field map – 2 runs

Magnetic measurement results of SD-1 current, Аh (1/м)k (1/м 2 )m (1/м 3 ) 103,650, ,0194-0, , ,0139-0, , ,0218-0, , ,0272-1,003 I= A ∆L eff /L eff = B=1.3 T B=0.21 T I=622.71A L eff = mm

Magnetic measurement results «lam»«solid»  I, А ± 0.5 B c, T ± L eff, mm ± 0.7 h, 1/m k, 1/m ± m, 1/m ± n, 1/m ± 1.4 ∆L eff /L eff = B=1.3 T SRD 01

Multipoles coils Quadrupole

Multipoles coils Sextupole Octupole

Coil production Radiation resistance quadrupole (SLAC impregnation procedure coils)

Pole profile and magnetic field (quadrupole) № idealshiftrotation shift + rotation step B’ n /B’ 2, Т  B/B ¼ profile ½ length

Multipole modeling 1 – А 2 – Сталь 10 ½ профиля ½ длины ¼ профиля А ¼ профиля ½ длины sextupole octupole

TS  S1, mm   S2, mm  S3, mm  S4, mm  d1, mm   d2, mm  —  15  m —  25  m Design of MLS quadrupole TS  h, mm 400   0.01 g, mm  m, mm   0.01 L, mm   0.18 L Ф, mm   0.02

TS  S1, mm   S2, mm  S3, mm  S4, mm  S5, mm  S6, mm  d1, mm   0.02 d2, mm  d3, mm  Design of MLS sextupole TS  h, mm 400   0.02 g, mm  0.01 m, mm   0.01 L, mm   0.2 L ch, mm   0.01 —  15  m —  25  m —  50  m

TS  h, mm 400   0.01 g, mm  m, mm   L, mm 80.0   0.14 Octupole magnet —  25  m —  50  m TS  S1, mm   S2, mm  S3, mm  S4, mm  S5, mm  S6, mm  0.00 S7, mm  0.00 S8, mm  d1, mm 86   d2, mm  0.0 d3, mm  d4, mm  0.0

Accuracy of lamination and yoke profile № 2D id 2D rotation 3D idmeas B’ n /B’ 2 A’ n /B’ 2 B’ n /B’ ∆B/B2∆B/B  m -15  m Profile measurements «rotation» ~12  m 2D model «ideal» «rotation» 30  m «rotation» 12  m ∆B rot /∆B ideal ~ 2.5 3D model «ideal» D «rotation» 12  m ∆B/B 2 ~ 2.5* ~ ~ D model