CEPC Collider Magnets CHEN, Fusan November 13, 2018.

Slides:



Advertisements
Similar presentations
D2 conceptual design and field quality optimization Ramesh Gupta, BNL Slide No. 1 Nov. 13, 2013 D2 Conceptual Design and Field Quality.
Advertisements

A.KOVALENKO SUPERCONDUCTING MAGNETS for NICA BOOSTER & COLLIDER NICA ROUND TABLE DISCUSSION - 3 JINR, Dubna, November 05, 2008.
Magnets for the ESRF upgrade phase II
IR Magnets for SuperKEKB KEK, Norihito Ohuchi 1.IR Magnets (ES, QCS, QC1) 2.Interference between Magnet-Cryostats and Belle 3.Summary SuperB.WS05.Hawaii.
Magnet designs for the ESRF-SR2
BROOKHAVEN SCIENCE ASSOCIATES Abstract Magnetic Specifications and Tolerances Weiming Guo, NSLS-II Project In this presentation I briefly introduced the.
Superconducting Large Bore Sextupole for ILC
BROOKHAVEN SCIENCE ASSOCIATES Abstract Magnet Design Workshop: Magnet Design and Analysis Charles Spataro, NSLS-II Project NSLS-II is a new 3Gev synchrotron.
Powered Magnets, DB Formation and Decelerator Alexey Vorozhtsov (JINR) International Workshop on Linear Colliders October 2010.
Status of CEPC Detector magnet
Magnet designs for Super-FRS and CR
Task7: NUSTAR2 - Design and Prototype Construction of a Radiation-Resistant Magnet C. Mühle GSI Task leader: G. Moritz /GSI.
Task7: NUSTAR2 - Design and Prototype Construction of a Radiation-Resistant Magnet C. Mühle GSI Task leader: G. Moritz /GSI.
Bnl - fnal- lbnl - slac US LHC Accelerator Research Program A Quadrupole Design for Crab Cavity Optics Ramesh Gupta Brookhaven National Laboratory Upton,
Magnet Design & Construction for EMMA
Proposed Conventional Sextupole for Installation at A0 Introduction (Dean Still) Reasons for installation- Reduce I in S6 feeddown sextupole circuit at.
Muon Cooling Channel Superconducting Magnet Systems Muon Collider Task Force Meeting on July 31, 2006 V.S. Kashikhin.
Consolidation of the Booster Injection Quadrupole Magnets (part 2) A. Aloev 14 th February 2013.
XFEL X-Ray Free-Electron Laser Bernward Krause MEA WP-12: Warm Magnets WPL: B. Krause.
CLIC Stabilisation Day’08 18 th March 2008 Thomas Zickler AT/MCS/MNC/tz 1 CLIC Quadrupoles Th. Zickler CERN.
SBS Magnet and Support Status Robin Wines June 2013.
Reducing the Iron in the Endcap Yoke of CLIC_SiD Benoit Curé, Konrad Elsener, Hubert Gerwig, CERN CERN, June 2014 Linear Collider Detector Magnet Meeting.
Correctors magnets V. Zubko, IHEP, Protvino SIS 300 Pre-consortium Meeting Thursday 19 March 2009, Protvino.
Prepare specifications/requirements magnetic and mechanical characteristics operation mode Development of Test facility - dedicated test facility to study.
Muons, Inc. 14 Jan 2010 S. Kahn--IR Quads 1 IR Quadrupoles with Exotic Materials Steve Kahn, Muons Inc. Bob Palmer, BNL Don Summers, Ole Miss.
"Static" steering correction on the DB Quadrupoles Alexey Vorozhtsov 14 Dec 2010.
Design of wide aperture/thin septa of extraction system for J-PARC-50GeV ring 1. The outline of septa system for 50GeVring 2. Designing of thin septa and.
Super Fragment Separator (Super-FRS) Machine and Magnets H. Leibrock, GSI Darmstadt Review on Cryogenics, February 27th, 2012, GSI Darmstadt.
Practical aspects of small aperture quadrupoles Dr Ben Leigh Tesla Engineering Ltd.
DDBA magnets Chris Bailey Low emittance rings Sept Frascati.
FNAL Workshop, July 19, 2007 ILC Main Linac Superconducting Quadrupole V.Kashikhin 1 ILC Main Linac Superconducting Quadrupole (ILC HGQ1) V. Kashikhin.
September 27, 2007 ILC Main Linac - KOF 1 ILC Main Linac Superconducting Quadrupole V. Kashikhin for Magnet group.
Yingshun Zhu Design of Small Aperture Quadrupole Magnet for HEPS-TF
HTS and LTS Magnet Design and Prototyping for RAON
New Magnet Design for FCC- ee Attilio Milanese, CERN 26 Oct presented by Frank Zimmermann.
A new QF1 magnet for ATF3 Alexey Vorozhtsov
Iranian Light Source Facility, IPM, P.O. Box , Tehran, Iran
Cherrill Spencer, SLAC Member of ATF2 Magnet Team
Yingshun Zhu Accelerator Center, Magnet Group
One plane dipole corrector for the CLIC MBQ TYPE 1
Yingshun Zhu Design progress of QD0 in CEPC Interaction Region
Some Design Considerations and R &D of CEPCB Dipole Magnet
High Gradient Magnet Design for SPring-8 Upgrade Plan
Test of a Permanent Magnet Quadrupole Placed in a Dipole Field
Physics Design of CBETA Quadrupoles
Warm magnets for LHeC / Test Facility arcs
6th BINP-FAIR-GSI Workshop,
TQS Structure Design and Modeling
The design schemes of the low field dipole magnets
Preliminary Design of High Precision Small Aperture Magnets for BAPS
Development of the Canted Cosine Theta Superconducting Magnet
PROGRESS REPORT OF A NLNS-FFAG ADS MAGNET
Arc magnet designs Attilio Milanese 13 Oct. 2016
CLIC DR Gradient Dipole
CHEN, Fusan KANG, Wen November 5, 2017
Magnets for the ESRF upgrade phase II
Main magnets for PERLE Test Facility
Pierre-Alexandre Thonet
Conceptual Design of CEPC Interaction Region Superconducting Magnets
Yingshun Zhu Accelerator Center, Magnet Group
Compact and Low Consumption Magnet Design The DESY Experience
Ramesh Gupta Brookhaven National Laboratory
PERMANENT MAGNET QUADRUPOLE FOR THE LINAC 4 CCDTL
High Precision Magnet Production for NSLSII at IHEP
Fusan Chen, Wen Kang, Mei Yang*
CEPC Final Focus Superconducting Quadrupole and Anti-solenoid Magnets
CEPC Booster Ring Magnets
Electron Collider Ring Magnets Preliminary Summary
Fanglei Lin, Yuhong Zhang JLEIC R&D Meeting, March 10, 2016
Possibility of MEIC Arc Cell Using PEP-II Dipole
Presentation transcript:

CEPC Collider Magnets CHEN, Fusan November 13, 2018

Collider Magnets Overview Over 80% of collider ring is covered by conventional magnet. The most important issues are Cost & Power Consumption. Make the magnets compact and simple. Use aluminum for the coils. Dual aperture magnets save nearly 50% power. Consider the combined function magnets. Increase the coil cross section and decrease the operating current. Dipole Quad. Sext. Corrector Total Dual aperture 2384 2392 - 13742 Single aperture 80*2+2 480*2+172 932*2 2904*2 Total length [km] 71.5 5.9 1.0 2.5 80.8 Power [MW] 7.0 20.2 4.6 2.2 34

Dual Aperture Dipole Design Length: 28.7m, divided into 5 segments. Combine sextupoles in the first and last segments. Different polarities in different apertures. Reduce the strength of individual sextupoles. SF SD

Dual Aperture Dipole Design The dual aperture dipole has ‘I’ shaped cross section. Dipole combined focus sextupole Dipole combined defocus sextupole Main coil has two turns instead of one turn to reduce the power loss of cable Trim coils are used for both apertures to adjust the field by ±1.5% independently Shielding made of lead protects the coils from SR

Dual Aperture Dipole Design Simulation and optimization Shim the pole to improve the field uniformity.  3×10-4@10mm Main coil position error and trim coil effect are studied. The cross talk between the two apertures can be ignored. Magnetic strength [T] 0.037 Aperture [mm] 70 Main coil Turns 2 Material Aluminum Current [A] 1058 Current density [A/mm2] 0.67 Power consumption [kW] 2.73 Trim coil 1×4 16.7 0.093 0.006 Cooling water Velocity [m/s] 1.75 Flux [l/s] 0.138 Temperature rise [°C] 4.7

Dual Aperture Quadrupole Design Enlarge the main coil cross section to reduce the power loss 50mm gap between yokes to reduce the cross talk of the two sides Shielding made of lead protects the coils from SR The two apertures have different polarities Trim coils are used for both apertures to adjust the field by ±1.5% independently Optimize the thickness of the iron plate to compensate the odd order harmonics

Dual Aperture Quadrupole Design 3D simulation The iron plate can not compensate the b1 & b3 at once. Prototype will be developed for further study. Gradient [T/m] 8.42 Aperture [mm] 76 Main coil Turns 64×2 Material Aluminum Current [A] 154 Current density [A/mm2] 1.89 Power consumption [kW] 5.3 Trim coil 20×4 copper 7.2 0.9 0.04 Cooling water Velocity [m/s] 1.3 Flux [l/s] 0.201 Temperature rise [°C] 6.3

Sextupole Design Two single aperture sextupoles are installed side by side. Core size is limited by the 350mm beam center separation. Use copper for coils & enlarge the cross section as much as possible. 10mm gap between two magnets but the cross talk can be ignored. Type SF SD Magnetic length [m] 0.7 1.4 Gradient [T/m2] 506 Aperture [mm] 80 Coil Turns 26×6 Material Copper Current [A] 168.4 Current density [A/mm2] 4.1 4.7 Power consumption [kW] 3.3 7.0 Cooling water Velocity [m/s] 2.1 1.8 Flux [l/s] 0.175 0.269 Temperature rise [°C] 4.5 6.2

Prototypes The prototypes of dual aperture dipole and dual aperture quadrupole are under development. Dual aperture dipole prototype research goals: Pure iron solid core instead of laminations. Dipole/Sextupole combined field quality. Step-like pole surface for low cost easy machining. Dual aperture quadrupole prototype research goals: Field cross talk between two apertures while changing trim current. Compensation effect of the middle iron plate with different shape. Coils made of aluminum hollow conductor. Try to find the points to reduce the cost.