Collaboration between CELLS in Barcelona and BINP in...

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

Collaboration between CELLS in Barcelona and BINP in...

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