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Collaboration between CELLS in Barcelona and BINP in Novosibirsk in the construction of ALBA Synchrotron

Josep Campmany on behalf of CELLS Accelerators Division

10/11/2011 J. Campmany – ALBA- CELLS (Barcelona) 2/30

Outline• Collaboration CELLS – BINP

• Specific projects developed– Combined quadrupole-sextupole magnet design– Beam dynamics calculations– Storage ring quadrupoles– Storage ring sextupoles– Supports for Booster accelerator– Installation of accelerator – Superconducting wiggler

• Summary


Framework: collaboration CELLS – BINP

• The reason for the collaboration was that «BINP has a great deal of accumulated experience in the design and construction of synchrotron light facilities.»

• Signed by Joan Bordas and Gennady Kulipanov on September 13th, 2004

the objective of constructing, equipping and exploiting a Synchrotron Light Facility».

• Very good references from SLS, where BINP help in the assembly of accelerators.

• It was established a memorandum of understanding between CELLS and BINP in order to collaborate «with


1st specific agreementDesign of a combined sextupole-quadrupole

• BINP group leaded by Eugene Levichev. ALBA group leaded by Dieter Einfeld

• Magnetic design and magnet optimization.

• Calculation of electrical parameters of the magnet.

• Calculation of the cooling water parameters.

• Technical drawings needed for fabrication

Design was completed at the end of 2004,but it was not applied in the final ALBA design


2nd specific agreementBeam dynamicscalculations

• BINP group leaded by Eugene Levichev. ALBA group leaded by Dieter Einfeld.

• Evalulation of ID influence in storage ring performance.

• Calculation of dynamic aperture of storage ring

Calculations were helpful in the 1st design phase. Afterwards they were refined by ALBA team


Contracts december’05 / january’06Quadrupole and sextupole

manufacturing• BINP group leaded by Eugene Levichev. ALBA group

leaded by Montse Pont.

• ALBA-CELLS made the magnetic and engineering design

• BINP made the technical design and manufactured the magnets

• Magnetic measurements were also done at BNIP

Quadrupoles and sextupoleshave been installed in the storare ring


Magnets characteristics-quadrupoles-

Number of magnets 112

Aperture 61 mm

Max. gradient 22.4 T/m

Max. current 185 A

• 2 types of laminations, 1 coil (46 turns, 8×8 mm, ∅5 mm)• Mechanically made of 4 pieces• 100 closed magnets, 12 opened magnets• Iron Overall dimensions are 600x600 mm


Magnets characteristics-sextupoles-

Number of magnets 120

Aperture 76 mm

Max. gradient 700 T/m2

Max. current 200 A

• 1 sextupole cross section.• Sextupolar field: 1 coil per pole(28 turns, 7×7 mm, ∅3.5 mm).• Correctors: 2 coils per pole (224 & 112 turns, 0.8×4.5mm solid conductor).


Magnets characteristics-skew quads and correctors integrated in sextupoles-

All sextupoles have steering coils for:

Horizontal Steering 0.8 mrad2 coil types (1806 A-turn, 903 A-turn)By(x=0) = 0.0514 T

Vertical Steering 0.8 mrad1 coil type (1520 A-turn)Bx(y=0) = 0.0499 T

Skew Quadrupole gx=0.2 T/m1 coil type (225 A-turn)


2D and 3D OPERA models

1.54 T

1.34 T

185 AMax 22.4 T/m

Quadrupole characteristics


Quadrupole characteristics

1.12 T

0.6 T

2D-OPERA models


Magnets 3D design


Manufacturing at BINP workshops


• Magnetic centre of magnets to an accuracy of ±30 um

• Angular tilt to an accuracy of ±0.1 mrad

• Integrated quadrupole field with respect to the current

• Integrated harmonic content up to harmonic 20th, with sensitivity of 10-4

• BINP measurement group leaded by Pavel Vobly. ALBA group leaded by Dieter Einfeld and Montse Pont.

Measurements at BNIP facility

Measurements cross-checked at Saclay (France) and Brookhaven (USA) with an excellent agreement


S150, 150 A, no chamfer

-2.0

0.0

2.0

4.0

6.0

8.0

10.0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

harmonic number

Bn/

B3

(x10

-4)

skewnormal

harmonics @ 25 mm

BINP OPERA-3DB9/B3 -8.22 -7.75B15/B3 2.17 2.09

Quality measurements at BNIP facility

Excellent agreement between simulations and measurements


New contract on 2007Supports of booster accelerator

BO-MA-BM10 660 Kg

BO-MA-BM05 355 Kg

Total deformation Max = 30 μm Equivalent stress Max = 13 MPa

• Mechanical design and FEA studies made by CELLS

• Manufacturing done at BINP workshops

• Manufacturing at BINP leaded by Yuri Pupkov and Eugene Levichev. ALBA group leaded by Dieter Einfeld and Yuri Nikitin.


Supports are “bracket” type

Total deformation Max = 22 μm

Equivalent stress Max = 13 MPa

FEA studies for quadrupole QV03

BO-MA-QV03 154 Kg

BO-MA-SEXT 42 Kg

BO-MA-Q180 93 Kg

BO-MA-CORR 14 Kg BO-MA-Q180 93 Kg

BO-MA-Q340 172 Kg

2 correctors + BPM + bellows

Quadrupole QV03 + VAC.

PUMP

Quadrupole Q340 + [ 2 correctors + BPM ] + Quadrupole Q180 + 2 vacuum pumps

Vacuum pump 7 Kg

Sextupole

Quadrupole Q180


Supports of booster accelerator• Manufacturing at BINP was done along 2007

• Installation in ALBA tunnel was completen on spring 2008


Supports of booster accelerator


New contract on 2008Mechanical installation of accelerators

• Qualified staff from BINP was integrating two teams of assembling along with CELLS personnel.

• 4 Specialised Technicians for the BO, 3 for the SR and 3 for the BL and RF Teams. They stayed in Barcelona from Nov 2008 to March 2009

• BINP team leaded by Yuri Pupkow. ALBA coordination by Montse Pont.


New contract on October 2007Superconducting wiggler manufacturing

Superconducting wiggler SCW31Main characteristics

• Superconducting wiggler• 12,8 mm magnetic gap• Period: 30,0 mm• Num. poles full field: 117• Length: 1.764 m• Bmax: 2.16 T• K: 6.08

• Superconducting wigglers are a world-wide known speciality of BINP.

• BINP team leaded by Nikolay Mesentzev and ALBA group leaded by Josep Campmany.


Cryostat shield Liner

Cryostat


Testing and installation at ALBA ring

• 4 wk for assembling and commissioning without beam

• 3 wk staying for installing into the storage ring

• 2 wk for commissioning with beam


Quench history.

Maximum reacheable field is 2.3 T

No quenches happened after installation

First light emerging from SCW30 seen at beamline on 11/10/11


Summary

Quadrupoles and sextupoles

Superconducting wiggler SCW30

Supports of booster accelerator


Thanks for your attention