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Workshop on Special Compact and Low Consumption Magnet Design

26–28 Nov 2014
CERN
Europe/Zurich timezone

Contribution List

71 / 71
0. CERN Welcome
Frederick Bordry (CERN)
26/11/2014, 09:00
1. Introduction to EuCard2
Maurizio Vretenar (CERN)
26/11/2014, 09:10
2. Introduction to "EnEfficient' Work Package of EuCard2
Mike Seidel
26/11/2014, 09:20
3. The outlook for electricity in Western Europe
Matthew Wittenstein (IEA)
26/11/2014, 09:30
4. Why are particle accelerators so inefficient?
Philippe Lebrun (CERN)
26/11/2014, 10:00
High-energy accelerators/colliders have developed into large machines consuming high electrical power up to the 100 MW range, thus making the energy bill a major component of their operating costs and eventually of their acceptability by society. With several new projects under study beyond the Large Hadron Collider (LHC), and projections of rising electricity prices by energy agencies,...
5. CERN plans towards energy efficiency
Serge Claudet (CERN)
26/11/2014, 11:00
High energy accelerators are usually great energy consumers and could not escape from being concerned by energy efficiency aspects. After recalling the context, major actions towards energy efficiency will be presented, with plans for the future.
6. Magnet Energy Recovery: a way towards more compact and efficient systems
Konstantinos Papastergiou (CERN)
26/11/2014, 11:30
Magnet energy recovery on a cycle-by-cycle basis shows potential for great energy savings and improvement of the grid power quality. Reducing the magnet duty cycle allows more compact mechanical layout and greater efficiency. To achieve such a benefit a system integration study is essential before starting the parallel development of magnets and power conversion/energy recovery systems.
7. Saving opportunities in accelerator magnets
Davide Tommasini (CERN)
26/11/2014, 12:00
An accelerator magnet is usually excited either by water cooled copper coils powered with an effective current density in the range of 3-6 A/mm2 or by using superconducting coils, depending on the required field amplitude. Exceptions are often due to technical reasons (special constraints, easier construction, more reliability). Up to now, only in rare cases (in particular in experimental...
8. Power Converters design optimization: need for an integrated approach with the magnet design
Davide Aguglia (CERN)
26/11/2014, 14:00
This talk presents the basics of the design of a power converter for DC and pulsed magnet. Particularly the impact of the magnet design (inductance, voltage and current adaptation given by the number of turns, etc.) on the converter design is illustrated. Compromises between efficiency, cost and technologies are presented. Finally, the need and benefits of an integrated approach which...
9. Iron-dominated cycled SC magnets for energy efficiency
Luca Bottura (CERN)
26/11/2014, 14:30
10. In-vacuum magnet design and challenges
Jim Clarke (STFC)
26/11/2014, 15:00
Synchrotron light sources can extend their wavelength reach significantly by putting the undulator arrays into the beam vacuum system. The advantages are such than many light sources now utilise in-vacuum undulators when required. However, there are a number of extra physics and engineering challenges which have to be dealt with when putting magnets in-vacuum. In this talk I will explain...
11. The CEA-Saclay experience
Pierre Vedrine (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))
26/11/2014, 16:00
12. Compact and low consumption magnet design - The DESY experience
Bernward Krause (DESY)
26/11/2014, 16:30
During the last ten years a variety of electromagnets has been ordered to upgrade the PETRA accelerator into a synchrotron light source, to build up a new branch at the FLASH accelerator facility and to install the new European XFEL. The talk will give an overview of the ingredients which are necessary for developing and manufacturing magnets. Two septum designs will be presented to...
14. Magnet designs for the ESRF-SR2
Gael Le Bec (ESRF)
26/11/2014, 17:00
Magnets for the ESRF storage ring upgrade (SR2) are being developed. The power consumption of the new ring should be lower than the present ESRF consumption, with much more magnets installed. On top of that, the new lattice must preserve the existing source points in the ID straight sections: longitudinal compactness is a strong constraint. Permanent magnet (PM) and electromagnet (EM)...
13. Energy management at GSI and FAIR strategy on energy management
Philipp Gardlowski (urn:Facebook)
26/11/2014, 17:30
GSI Helmholtzzentrum für Schwerionenforschung GmbH operates a unique large-scale accelerator for heavy ions. In the coming years the new international accelerator facility FAIR, one of the largest research projects worldwide, will be built at GSI. In the final extension FAIR consists of several heavy ion accelerator rings, experiment storage rings with up to 1,100 meters in circumference,...
34. Energy efficient beam transport by means of high current pulsed magnets
Carmen Tenholt (GSI)
26/11/2014, 18:00
In order to raise the focusing gradient in case of bunched beam lines, an alternative, iron free, pulsed quadrupole was designed. The transfer channels between synchrotrons as well as the final focusing for the production of secondary beams are possible applications. The construction of this quadrupole is about to be finished and thus it is almost ready to be tested. The quadrupole is...
15. The PSI experience: A theory of evolution
Alexander Gabard (PSI)
27/11/2014, 09:00
From the beginning, operating costs have been a factor in the design of accelerators and beamlines at PSI. However, limited funds and increasing power costs have made this aspect even more important nowadays. Through the history of PSI, we will present the initial prerogatives for magnet design at our institute and their evolution over time, resulting in the current compact design of the...
16. CERN experience on PM based magnet design and procurement
Pierre Alexandre Thonet (CERN)
27/11/2014, 09:30
18. Compact superconducting magnets for linear accelerators
Vladimir KASHIKHIN (Fermilab)
27/11/2014, 10:30
New Linear Accelerators based on SCRF cavities need compact and efficient superconducting magnet packages to focus and steer electron or proton beams. These magnets should be combined with SCRF cryomodules and installed inside or between them. A recent activity in this area was directed by FNAL-KEK collaboration to splittable conduction cooled magnets. Several magnet prototypes were built...
19. Electromagnetic and hybrid design experience for CLIC magnet R&D
Michele Modena (CERN)
27/11/2014, 11:00
Since 2009 CERN started R&D activities in order to identified and investigate the most challenging cases among the magnets needed for CLIC the Compact Linear Collider one of the possible Future Linear Colliders. In some specific cases the work is mainly done by our colleagues of STFC-Daresbury Lab (UK) part of the CLIC International Collaboration. In the last four years several theoretical...
20. ZEPTO: Tunable permanent magnet dipoles and quadrupoles
Ben Shepherd (STFC)
27/11/2014, 11:30
Within the framework of the CLIC-UK collaboration between CERN and STFC, two types of permanent magnet based quadrupoles have been developed and built. These magnets have a very large tuning range (15-60 T/m and 4-43 T/m respectively). The parameters were specified for the challenging requirements of the CLIC Drive Beam Decelerator. Two prototypes have been built and successfully tested,...
35. The experience at FERMILAB: recycler ring and beam lines based on PM technology
Vladimir KASHIKHIN (Fermilab)
27/11/2014, 12:00
Various permanent magnets were built and successfully operated at FERMILAB Accelerator Complex. The Recycler Ring and 8 Gev beam transfer line includes nearby 500 permanent magnet gradient dipoles and quadrupoles based on strontium ferrite bricks. For NLC were built and tested 6 adjustable permanent magnet quadrupoles with gradients up to 100 T/m, and wide range of integrated gradient...
21. Development and operation of a superconducting combined-function magnet system for J-PARC neutrino beam line
Akira Yamamoto (High Energy Accelerator Research Organization (JP)), Toru Ogitsu (KEK)
27/11/2014, 14:00
22. Integrated magnet block design and production for MAX IV
Martin Johansson (MaxLab)
27/11/2014, 14:30
The magnet design of the MAX IV 3 GeV storage ring replaces the conventional support girder + discrete magnets scheme of previous 3rd gen. light sources with a compact integrated design having several consecutive magnet elements precision-machined out of a common solid iron block. This presentation consists of a brief description of the design, and mechanical + magnetic field measurement...
26. Permanent (and soft) magnet materials for use in accelerators
Franz-Josef Börgermann (Vacuumschmelze GmbH & Co KG)
27/11/2014, 15:00
Permanent magnets and soft magnetic materials with specific properties have been frequently used in various assemblies at accelerators and colliders. Among these are undulators, wigglers as well as dipoles (PM based and specific electromagnets), PM-quadrupoles and higher multipoles. From energy consumption aspects, the PM-solutions may provide a contribution to long term energy savings...
36. Development of electrical steel for highest efficiency applications
Tim Keppert (VoestAlpine)
27/11/2014, 15:30
Voestalpine is a producer of highest quality electrical steel. In recent years voestalpine proofed to be a reliable partner regarding the supply of electrical steel for the construction of magnets. From the point of the electrical steel producer the requirements of the magnet construction industry are very demanding. This contribution tries to show the difficulties that arise by...
27. Industrial challenges of compact magnet production
Norbert Collomb (STFC Daresbury Laboratory)
27/11/2014, 16:00
The CLIC-UK collaboration between CERN and STFC produced two prototypes of permanent magnet based quadrupoles to cover the large tuning range (15 - 60 T/m and 4 - 43 T/m respectively) required for the CLIC Drive Beam Decelerator. The space envelope and accuracies to achieve the demanding parameter challenges have been addressed during the production of the prototypes. Assembly sequencing,...
66. A capital-cost and energy reducing configuration for dipoles in multi-stack race-track bends
Neil Marks (STFC)
27/11/2014, 17:00
Some existing facilities (1) and the recent proposal for the LHeC collider (2,3), have utilised a racetrack configuration, with 180 degree bends, to circulate beam for a small number of turns (typically 3 revolutions) through superconducting energy-recovery linacs. Particles of differing energies are defected in these bends and this is accomplished by positioning the beams at different...
67. Development of a hybrid permanent magnets quadrupole
Patrick Ngotta (ESRF)
27/11/2014, 17:20
The ESRF Insertion Devices laboratory is developing high gradient permanent magnet (PM) quadrupoles for potential use in a storage ring. This paper presents the development of a hybrid quadrupole with strong gradient (100T/m). The performance of a few PM and resistive structures are compared. One hybrid structure, composed of iron parts and rectangular PM blocks, appears to offer a good...
68. The loss budget of the SIS100 fast ramped superferric magnets
Anna Mierau (GSI)
27/11/2014, 17:40
The superconducting magnets of the SIS100 heavy ion accelerator are to be built based on a compact window-frame design. Beside the optimisation of the magnetic field characteristics the minimisation of the AC losses was a central part during the R&D phase. Now the first dipole was built and tested. We presend the obtained loss results for typical operation modes and compare them with...
39. Discussion
27/11/2014, 18:00
28. Beam dynamics requirements for future accelerators
Yannis Papaphilippou (CERN)
28/11/2014, 09:00
29. Magnet alignment challenges for future accelerators
Helene Mainaud Durand (CERN)
28/11/2014, 09:20
30. Magnetic measurements challenges for very compact magnets
Marco Buzio (CERN)
28/11/2014, 09:40
40. Nano-positioning possibilities for future accelerator magnets
Kurt Artoos (CERN)
28/11/2014, 10:00
A subject common to several future high-energy physics R&D programs is the generation of beams with very small emittance and beam size and concomitantly the alignment and stabilization of accelerator components with ultimate precision. To reach e.g. the design luminosity at the CLIC interaction point, the beam size at the interaction point (IP) shall be only one nanometre in vertical...
44. Summary of sessions 1&2
Akira Yamamoto (High Energy Accelerator Research Organization (JP))
28/11/2014, 11:00
41. Summary of sessions 3&4
Daniel Schoerling (CERN)
28/11/2014, 11:10
42. Summary of sessions 5&6
Jim Clarke (STFC)
28/11/2014, 11:20
43. General discussions
28/11/2014, 11:30
37. 6th Session: Short communication from participants; Chair:
48. A capital-cost and energy reducing configuration for dipoles in multi-stacked race-track bends.
Prof. Neil Marks (STFC, Daresbury Laboratory; U. of Liverpool.)
Some existing facilities (1) and the recent proposal for the LHeC collider (2,3), have utilised a racetrack configuration, with 180 degree bends, to circulate beam for a small number of turns (typically 3 revolutions) through superconducting energy-recovery linacs. Particles of differing energies are defected in these bends and this is accomplished by positioning the beams at different...
59. CERN plans towards energy efficiency
Mr Serge Claudet (CERN)
High energy accelerators are usually great energy consumers and could not escape from being concerned by energy efficiency aspects. After recalling the context, major actions towards energy efficiency will be presented, with plans for the future.
64. Compact and Low Consumption Magnet Design ̶ The DESY Experience
Mr Bernward Krause (DESY)
During the last ten years a variety of electromagnets has been ordered to upgrade the PETRA accelerator into a synchrotron light source, to build up a new branch at the FLASH accelerator facility and to install the new European XFEL. The talk will give an overview of the ingredients which are necessary for developing and manufacturing magnets. Two septum designs will be presented to discuss...
49. Compact Superconducting Magnets for Linear Accelerators
Dr Vladimir Kashikhin (Fermilab)
New Linear Accelerators based on SCRF cavities need compact and efficient superconducting magnet packages to focus and steer electron or proton beams. These magnets should be combined with SCRF cryomodules and installed inside or between them. A recent activity in this area was directed by FNAL-KEK collaboration to splittable conduction cooled magnets. Several magnet prototypes were built and...
46. Development of a hybrid permanent magnet quadrupole
Mr patrick ngotta (esrf)
The ESRF Insertion Devices laboratory is developing high gradient permanent magnet (PM) quadrupoles for potential use in a storage ring. This paper presents the development of a hybrid quadrupole with strong gradient (100T/m). The performance of a few PM and resistive structures are compared. One hybrid structure, composed of iron parts and rectangular PM blocks, appears to offer a good...
65. Development of electrical steel for highest efficiency applications
Dr Timothy Keppert (Voestalpine Stahl GmbH)
Voestalpine is a producer of highest quality electrical steel. In recent years voestalpine proofed to be a reliable partner regarding the supply of electrical steel for the construction of magnets. From the point of the electrical steel producer the requirements of the magnet construction industry are very demanding. This contribution tries to show the difficulties that arise by the example of...
25. Development of energy efficient power supplies/power electronics
61. Electro-magnetic and hybrid design experience for CLIC magnet R&D
Michele Modena (CERN)
Since 2009 CERN started R&D activities in order to identified and investigate the most challenging cases among the magnets needed for CLIC the Compact Linear Collider one of the possible Future Linear Colliders. In some specific cases the work is mainly done by our colleagues of STFC-Daresbury Lab (UK) part of the CLIC International Collaboration. In the last four years several theoretical...
38. Energy efficient magents for FCC Injector Complex
Attilio Milanese (CERN)
17. Energy efficient magnets for FCC
57. Energy management at GSI and FAIR, strategy on energy management,
Jan Lindenberg (G)
GSI Helmholtzzentrum für Schwerionenforschung GmbH operates a unique large-scale accelerator for heavy ions. In the coming years the new international accelerator facility FAIR, one of the largest research projects worldwide, will be built at GSI. In the final extension FAIR consists of several heavy ion accelerator rings, experiment storage rings with up to 1,100 meters in circumference,...
33. General discussion
60. In-vacuum magnet design and challenges
Jim Clarke (STFC)
Synchrotron light sources can extend their wavelength reach significantly by putting the undulator arrays into the beam vacuum system. The advantages are such than many light sources now utilise in-vacuum undulators when required. However, there are a number of extra physics and engineering challenges which have to be dealt with when putting magnets in-vacuum. In this talk I will explain the...
50. Industrial challenges of compact magnet production
Mr Norbert Collomb (STFC Daresbury Laboratory)
The CLIC-UK collaboration between CERN and STFC produced two prototypes of permanent magnet based quadrupoles to cover the large tuning range (15 - 60 T/m and 4 - 43 T/m respectively) required for the CLIC Drive Beam Decelerator. The space envelope and accuracies to achieve the demanding parameter challenges have been addressed during the production of the prototypes. Assembly sequencing,...
52. Integrated magnet block design and production for MAX IV
Mr Martin Johansson (MAX IV Laboratory)
The magnet design of the MAX IV 3 GeV storage ring replaces the conventional support girder + discrete magnets scheme of previous 3rd gen. light sources with a compact integrated design having several consecutive magnet elements precision-machined out of a common solid iron block. This presentation consists of a brief description of the design, and mechanical + magnetic field measurement...
47. Magnet designs for the ESRF-SR2
Gael Le Bec (ESRF)
Magnets for the ESRF storage ring upgrade (SR2) are being developed. The power consumption of the new ring should be lower than the present ESRF consumption, with much more magnets installed. On top of that, the new lattice must preserve the existing source points in the ID straight sections: longitudinal compactness is a strong constraint. Permanent magnet (PM) and electromagnet (EM) devices...
56. Magnet Energy Recovery; a way towards more compact and efficient systems
Dr Konstantinos Papastergiou (CERN)
Magnet energy recovery on a cycle-by-cycle basis shows potential for great energy savings and improvement of the grid power quality. Reducing the magnet duty cycle allows more compact mechanical layout and greater efficiency. To achieve such a benefit a system integration study is essential before starting the parallel development of magnets and power conversion/energy recovery systems.
62. Nano-positioning possibilities for future accelerator magnets
Kurt Artoos (CERN)
A subject common to several future high-energy physics R&D programs is the generation of beams with very small emittance and beam size and concomitantly the alignment and stabilization of accelerator components with ultimate precision. To reach e.g. the design luminosity at the CLIC interaction point, the beam size at the interaction point (IP) shall be only one nanometre in vertical direction...
24. News from electrical steel producers to enable higher efficiency
53. Permanent (and soft) magnet materials for use in accelerators
Dr Franz-Josef Börgermann (Vacuumschmelze GmbH & Co KG)
F.-J. Boergermann, C. Brombacher, K. Uestuener, F. Fohr, Vacuumschmelze GmbH & Co KG, Hanau, Germany “Permanent magnets and soft magnetic materials with specific properties have been frequently used in various assemblies at accelerators and colliders. Among these are undulators, wigglers as well as dipoles (PM based and specific electromagnets), PM-quadrupoles and higher multipoles....
23. PM materials for accelerator magnets application
55. Power converters design optimization - need for an integrated approach with the magnet designer
Davide Aguglia (CERN)
This talks presents the basics of the design of a power converter for DC and pulsed magnet. Particularly the impact of the magnet design (inductance, voltage and current adaptation given by the number of turns, etc.) on the converter design is illustrated. Compromises between efficiency, cost and technologies are presented. Finally, the need and benefits of an integrated approach which...
54. Saving opportunities in accelerator magnets
Dr Davide Tommasini (CERN)
An accelerator magnet is usually excited either by water cooled copper coils powered with an effective current density in the range of 3-6 A/mm2 or by using superconducting coils, depending on the required field amplitude. Exceptions are often due to technical reasons (special constraints, easier construction, more reliability). Up to now, only in rare cases (in particular in experimental...
32. Summary
31. Summary of 6 sessions
63. The experience at FERMILAB: recycler ring and beam lines based on PM technology
VLADIMIR KASHIKHIN (Fermilab)
Various permanent magnets were built and successfully operated at FERMILAB Accelerator Complex. The Recycler Ring and 8 Gev beam transfer line includes nearby 500 permanent magnet gradient dipoles and quadrupoles based on strontium ferrite bricks. For NLC were built and tested 6 adjustable permanent magnet quadrupoles with gradients up to 100 T/m, and wide range of integrated gradient changes....
58. The GSI experience: Energy efficient beam transport by means of high current pulsed magnets
Carmen Tenholt (GSI Helmholtzzentrum für Schwerionenforschung GmbH)
In order to raise the focusing gradient in case of bunched beam lines, an alternative, iron free, pulsed quadrupole was designed. The transfer channels between synchrotrons as well as the final focusing for the production of secondary beams are possible applications. The construction of this quadrupole is about to be finished and thus it is almost ready to be tested. The quadrupole is running...
51. The Loss Budget of the SIS100 Fast Ramped Superferric Magnets
Egbert Fischer (GSI)
The superconducting magnets of the SIS100 heavy ion accelerator are to be built based on a compact window-frame design. Beside the optimisation of the magnetic field characteristics the minimisation of the AC losses was a central part during the R&D phase. Now the first dipole was built and tested. We presend the obtained loss results for typical operation modes and compare them with previous...
69. The PSI Experience: A Theory Of Evolution
Alexander Gabard (Paul Scherrer Institute)
From the beginning, operating costs have been a factor in the design of accelerators and beamlines at PSI. However, limited funds and increasing power costs have made this aspect even more important nowadays. Through the history of PSI, we will present the initial prerogatives for magnet design at our institute and their evolution over time, resulting in the current compact design of the...
70. Why are particle accelerators so inefficient?
Philippe Lebrun (CERN)
High-energy accelerators/colliders have developed into large machines consuming high electrical power up to the 100 MW range, thus making the energy bill a major component of their operating costs and eventually of their acceptability by society. With several new projects under study beyond the Large Hadron Collider (LHC), and projections of rising electricity prices by energy agencies, this...
45. ZEPTO: Tunable Permanent Magnet Dipoles and Quadrupoles
Mr Ben Shepherd (STFC)
Within the framework of the CLIC-UK collaboration between CERN and STFC, two types of permanent magnet based quadrupoles have been developed and built. These magnets have a very large tuning range (15-60 T/m and 4-43 T/m respectively). The parameters were specified for the challenging requirements of the CLIC Drive Beam Decelerator. Two prototypes have been built and successfully tested,...

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