“ Beam Dynamics meets Magnets” G. Franchetti, GSI 1 st EuCARD-2 Annual Meeting 19-23 May 2014, DESY 19/5/2014 G. Franchetti 1
Overview • Introduction • Beam dynamics meets Magnets • Highlights • Summary/Outlook 19/5/2014 G. Franchetti 2
Introduction: starting from a realistic view 19/5/2014 G. Franchetti 3
Accelerators were Basic born within science research Beam dynamics Magnets Fragmentation increase of energy / intensity in areas of increase of complexity competence 19/5/2014 G. Franchetti 4
Magnets Beam Dynamics 19/5/2014 G. Franchetti 5
Beam Dynamics & Magnets Who comes first? I come first !! I don’t trust your the multipoles I know the physics I come first !! DA !! I am even taller are wrong! I know the physics I know the technology 19/5/2014 G. Franchetti 6
We all are interconnected 19/5/2014 G. Franchetti 7
Task 5.3: Extreme performance rings (XRING) GSI will coordinate XRING and integrate the activities of the accelerator, nuclear and particle physics communities towards reaching the optimum performance of FAIR, ISIS and PSI-HIPA, and helping guide the upgrade strategy for the LHC injector complex. Ultimate limitations for the aforementioned projects will be identified. XRING will also support studies on critical beam diagnostics (e.g. continuous emittance & beam-loss measurements) and on advanced FFAGs designs, including machine experiments at EMMA in the UK. XRING will create strong synergies across communities, countries and continents. XRING will be THE European forum for discussing performance limitations of high-intensity high-brightness hadron rings, and for analyzing and optimizing the proposed upgrade paths of several European facilities. XRING will bring together experts in beam dynamics with specialists of magnets and collimation to arrive at optimum upgrade solutions with risk mitigation. XRING will integrate the efforts of large laboratories, smaller institutes and universities, and it will form and maintain a community capable of advancing the technical realization & scientific exploitation of the European high-power hadron-ring facilities. Task participants will attend and contribute to events addressing high-intensity hadron beams and participate in beam experiments, e.g. at PSI, ISIS, and EMMA. The following institutes have expressed interest in the EUROLUMI activities: CNRS-LPSC, UJF (FR), GSI (DE), Unibo (IT), CERN (INO), JAEA, KEK (JP), UM (MT), CINVESTAV (MX), IHEP, JINR (RU), PSI (CH), RHUL, STFC, UNIMAN and ULANC as Cockroft Institute, UOXF (UK), BNL, and FNAL (US). 19/5/2014 G. Franchetti 8
Two different areas Two different communities Beam Magnets Dynamics 19/5/2014 G. Franchetti 9
Beam Beam Dynamics Magnets meets Dynamics Magnets Crazy idea high risk Thanks to EuCARD-2 we took the risk. 19/5/2014 G. Franchetti 10
Beam Dynamics meet Magnets 19/5/2014 G. Franchetti 11
19/5/2014 G. Franchetti 12
CERN 2 2 GSI 2 0 Intensity Energy STFC 7 Frontiers Frontiers Goethe U Ffm 6 Unparalleled TU Darmstadt 4 PSI 3 participation ISIS 3 of institutions FZ Jülich 2 representing a KEK 2 KIT 2 large spectrum of ASTeC 1 the accelerator BNL 1 Ion Electron Cockcroft I. 1 community Machines FAIR 1 Machines Imperial College 1 INFN 1 KU Leuven 1 JPARC 1 Proton LNL 1 Beam Dynamics MedAustron 1 Machines meets MSU 1 SLAC 1 Magnets Tokyo U. 1 19/5/2014 G. Franchetti 13
WLAN: SSID -> BEAM password -> DYNAMICS 19/5/2014 G. Franchetti 14
Unique opportunity to face issues that requires the expertise of magnet and beam dynamics The workshop attempted to enhance the scientific-technical "project" experience: in every project (LHC,FAIR,JPARC,ATF2,EMMA, etc...) the experience of the communications and synergy between "Beam Dynamics & Magnets" has developed differently. This is due to project features, laboratory styles and traditions, people personalities and experiences. W orkflow of “beam dynamics” and “magnets” in different projects Magnets Beam Dynamics How well should a magnet be measured for beam dynamics ? Example: Benchmarking experiments: beam dynamics <-> magnets 19/5/2014 G. Franchetti 15
19/5/2014 G. Franchetti 16
A Mixed approach Beam Dynamics meets Magnets audio/video Darmstadtium package negotiations support of students 19/5/2014 G. Franchetti 17
Highlights 19/5/2014 G. Franchetti 18
T. Taylor Historical overview: Strong focusing magnets – combined function An AGS magnet (PS, ISR are similar) Accurate pole (2-D) + steel mixing + measurements + magnet sorting + poleface windings (But finally ISR magnets were sorted by weight!) Idea of using punched laminations to obtain accurate pole profile over whole length 19/5/2014 G. Franchetti 19
Talks on FAIR magnets A. Mierau 19/5/2014 G. Franchetti 20
DA verification in LHC F. Schmidt E.H. Maclean, R. Tomàs, F. Schmidt, and T.H.B. Persson. 19/5/2014 G. Franchetti 21
The LHC magnet sorting experience MEB Workflow Diagram M. Giovannozzi Board meeting Production Stock Presentation by Co-ordinator Discussion by Experts Co-ordinator Electrical performance (quench/insulation/protection) Geometry (V-lines/flanges) + Field quality magnet Accelerator Physics Slot proposal by Accelerator Physics experts, experts (sorting) confirmed by Co-ordinator Y performance N ID card OK Performance Assent report Hold Installation Accelerator Geometry report + shift & roll Physics experts NC report Actions Co-ordinator Co-ordinator Install OK 19/5/2014 G. Franchetti 22
Slot allocation for MB’s Comfortable stock for sorting: maximum of 300 MB’s 19/5/2014 G. Franchetti 23 by end 2005, tapered down in 2006
Marco Buzio 19/5/2014 G. Franchetti 24
Needed to understand the polarities of the multipoles, had to recall which way IHEP magnetic measurement apparatus. No the coil was rotating etc. Cherrill Spencer longer in place Spencer ATF2 Magnets, 1 st XBEAM-XRING Workshop 25
The issue of different notations! Sugita Kei 19/5/2014 G. Franchetti 26
FFAG the working marriage of magnets and beam dynamics J-B. Lagrange S. Sheehy PAMELA Project Experience: superconducting helical coils 19/5/2014 G. Franchetti 27
Summary 19/5/2014 G. Franchetti 28
Which came first, the chicken or the egg ? Both come first ! 19/5/2014 G. Franchetti 29
Project interplay Magnets Beam LHC Design Dynamics Magnets Beam J-PARC, SIS100 Design Dynamics Magnets Beam ATF2 Design Dynamics 19/5/2014 G. Franchetti 30
Beam Dynamics Verification The LHC experience shows that if all magnets are knows well, then the dynamic aperture can be predicted with very good accuracy Theory can be trusted (physics works) 19/5/2014 G. Franchetti 31
Strategies after magnets are ordered… • High degree of competence and exchange of information • Massive involvement of resources Magnet sorting for LHC ATF2 19/5/2014 G. Franchetti 32
Quality assessment of magnets Magnets seen by two communities For a Beam Dynamics person k n, j n For a Magnet person B x, B y , B z 19/5/2014 G. Franchetti 33
Combining rotating coil probe measurements Not a clear answer from the workshop 19/5/2014 G. Franchetti 34
Outlook 19/5/2014 G. Franchetti 35
There has been a general consensus that the discussion is not over and more aspects of the interplay between Beam Dynamics and Magnet should be commonly discussed New workshop in 2014! under the EuCARD-2 umbrella but organized by the community 19/5/2014 G. Franchetti 36
Thank you for the attention 19/5/2014 G. Franchetti 37
Recommend
More recommend