First Idea on Bunch to Bucket Transfer for FAIR

Slides:

Advertisements

Similar presentations

FAIR accelerator R&D Oliver Kester GSI Helmholtzzentrum für Schwerionenforschung Darmstadt and IAP Goethe-Universität Frankfurt.

Advertisements

Doc.: IEEE /404r0 Submission July 2001 Georg Dickmann, BridgeCo AG.Slide 1 AV Timing Limits BridgeCo AG Georg Dickmann

Measurements of adiabatic dual rf capture in the SIS 18 O. Chorniy.

Note: most of the slides shown here are picked from CERN accelerator workshops. Please refer to those workshop for further understanding of the accelerator.

Demands and Requirements for the New Control System for GSI Future Accelerators An Overview U. Krause, S. Richter, P. Schütt.

Helmholtz International Center for Oliver Boine-Frankenheim GSI mbH and TU Darmstadt/TEMF FAIR accelerator theory (FAIR-AT) division Helmholtz International.

1 University of Freiburg Computer Networks and Telematics Prof. Christian Schindelhauer Wireless Sensor Networks 13th Lecture Christian Schindelhauer.

PSB magnetic cycle 160 MeV to 2 GeV with 2.5E13 protons per ring A. Blas 2 GeV magnetic cycle 29/04/ Requirements 1.Present performance: 1E13p from.

Paul Derwent 30 Nov 00 1 The Fermilab Accelerator Complex o Series of presentations  Overview of FNAL Accelerator Complex  Antiprotons: Stochastic Cooling.

Laser accelerated ions and their potential for therapy accelerators I. Hofmann, GSI Accelerator Department HIAT09, Venezia, June 8-12, Introduction.

22 March 2012Dietrich Beck - BEL General Machine Timing FAIR Just a few slides….

22/03/1999A.Blas1 Hollow bunches A. Blas, S. Hancock, S. Koscielniak, M. Lindroos, F. Pedersen, H. Schonauer  Why: to improve space charge related problems.

Moriond 2003M. Benedikt, S. Hancock Injection and Accumulation in a High Energy Ion Storage Ring Michael Benedikt, Steven Hancock AB Division, CERN.

Ajit Kurup, C. Bontoiu, M. Aslaninejad, J. Pozimski, Imperial College London. A.Bogacz, V. S. Morozov, Y.R. Roblin Jefferson Laboratory K. B. Beard, Muons,

Secondary Particle Production and Capture for Muon Accelerator Applications S.J. Brooks, RAL, Oxfordshire, UK Abstract Intense pulsed.

Measurement opportunities with the LHC transverse damper W. Hofle, D. Valuch.

Polarized deuterons and protons at NICA А.Коваленко NICA-SPIN_PRAGUE 2013 Charles University, Prague, July 7-12, 2013.

Digital Phase Control System for SSRF LINAC C.X. Yin, D.K. Liu, L.Y. Yu SINAP, China

Experimental part: Measurement the energy deposition profile for U ions with energies E=100 MeV/u - 1 GeV/u in iron and copper. Measurement the residual.

Digital Phase Control System for SSRF LINAC C.X. Yin, D.K. Liu, L.Y. Yu SINAP, China

Timing Requirements for Spallation Neutron Sources Timing system clock synchronized to the storage ring’s revolution frequency. –LANSCE: MHz.

COGGING MEETING Cogging Semi-Fine Adjust without collisions? Fine Adjust When? Cogging Meeting – Sophie BARON.

Double RF system at IUCF Shaoheng Wang 06/15/04. Contents 1.Introduction of Double RF System 2.Phase modulation  Single cavity case  Double cavity case.

Part III Commissioning. Proof of Principle FFAG (POP) study The world first proton FFAG –Commissioned in March –From 50 keV to 500 keV in 1ms. –Proof.

Managed by UT-Battelle for the Department of Energy Using Online Single Particle Model for SNS Accelerator Tuning Andrei Shishlo, Alexander Aleksandrov.

RF System for HESR Status report, January 2006 F. Etzkorn / A. Schnase, with help from S. An, K. Bongardt.

A simple formula for calculating the momentum spread from the longitudinal density distribution and RF form Recycler Meeting March 11, 2009 A. Shemyakin.

Peter Hülsmann, GSI RF-Group, Tel: Task SIS18-1: h=2 Cavity P. Hülsmann GSI, Gesellschaft für Schwerionenforschung.

Experimental and Theoretical Study of Energy Deposition and Residual Activation Induced by Uranium Ions to Model the Beam Loss Hazards in the GSI Future.

Information And Communication in Operation At GSI Uwe Scheeler operation department GSI Helmholtzzentrum Darmstadt Germany.

CERN Timing Overview CERN timing overview and our future plans with White Rabbit Jean-Claude BAU – CERN – 22 March

Damping of Coupled-bunch Oscillations with Sub-harmonic RF Voltage? 1 H. Damerau LIU-PS Working Group Meeting 4 March 2014.

Chapter 10 Rüdiger Schmidt (CERN) – Darmstadt TU , version E 2.4 Acceleration and longitudinal phase space.

9/2/2003Tev BPM requirements1 Tevatron BPM and BLM requirements Mike Martens.

Coupled bunch instabilities in the CERN PS

Bunch Numbering P. Baudrenghien AB/RF for the LHC/RF team.

Filling Schemes for the 2010 Heavy Ion Run Updated (3 rd iteration) version of BCWG presentation initially on 28 September, updated after discussions with.

T. Fleck, GSI, Darmstadt, Germany ICALEPCS Status of the Control System for HICAT at an advanced stage of Commissioning Functions, Restrictions.

Beam time structures 1 At any particular instance of time there will be only one kind of beam in the MI. It will be either protons or anti-protons. The.

Longitudinal Painting S. Hancock p.p. G. Feldbauer.

B2B Transfer System for FAIR (Conceptual Design [1]) Presenter: Jiaoni Bai Professor: Oliver Kester Supervisor: David Ondreka, Dietrich Beck.

Beam Diagnostics Seminar, Nov.05, 2009 Das Tune-Meßverfahren für das neue POSI am SIS-18 U. Rauch GSI - Strahldiagnose.

6 July 2010 | TU Darmstadt | Fachbereich 18 | Institut Theorie Elektromagnetischer Felder | Sabrina Appel | 1 Micro bunch evolution and „turbulent beams“

Neutrino Factory by Zunbeltz, Davide, Margarita, Wolfgang IDS proposal.

RF manipulations in SIS 18 and SIS 100 O. Chorniy.

Activation by Heavy-Ion Beams

RF acceleration and transverse damper systems

Longitudinal Dynamics of Charged Particle

Collimation Concept for Beam Halo Losses in SIS 100

A.Sidorin, on behalf of the team PP PAC, JINR, Dubna, 16 January 2017

L4-PSB working group meeting 25/06/2009

V. Bagnoud PHELIX, Plasma Physics department GSI Darmstadt

A.Lachaize CNRS/IN2P3 IPN Orsay

Deterministic Bunch-to-Bucket Transfer: Measurement Hardware

PSB rf manipulations PSB cavities

CLIC Drive Beam Stabilisation

M. Mehler1), H. Klingbeil1), B. Zipfel2)

Fill-pattern Control System for KEKB

Timing System GSI R. Bär / U. Krause 15. Feb. 2008

Longitudinal Dynamics & RF Capture

Russian Research Center “ Kurchatov Institute”

Pradeep Ghosh for the CBM Collaboration Goethe-Universität, Frankfurt

Figure 5 The biological effects of charged particles

ACCELERATORS AND DETECTORS

Accelerator Physics G. A. Krafft, A. Bogacz, and H. Sayed

Accelerator Physics Coupling Control

Physics 417/517 Introduction to Particle Accelerator Physics

PSB magnetic cycle 900 ms MeV to 2 GeV

JLEIC ion fullsize booster (2256m) space charge limit (Δν=0

Pulsed electron beam cooling experiments: data & preliminary results

Presentation transcript:

First Idea on Bunch to Bucket Transfer for FAIR J.Bai12, R.Bär1, D.Beck1, T.Ferrand13, M.Kreider1, D.Ondreka1, C.Prados1, S.Rauch1, W.Terpstra1, M.Zweig1 1 GSI - Gesellschaft für Schwerionenforschung, Darmstadt, Germany 2 IAP, Goethe University Frankfurt am Main 3 TU Darmstadt Matching Abstract The FAIR facility makes use of the Bunch phase Timing system (BuTis) and the General Machine Timing (GMT) system to realize synchronization of two synchrotrons. Under the asssumption of the slightly detuned frequency in both machines, the source and target machine exchange information shortly before the transfer and make use of rf frequency beating pattern to realize synchronization with accuracy better than 1º. Each involved machines sends data including rf frequency, phase of first harmonics, harmonic number and bunch/bucket position to the other machine at the same time via the timing system. After exchanging information, both machines have the complete information and can calculate the exact transfer time independently and locally. Matching means: Energy matching The green dots (a, b, c) show the trajectory for an injection energy error. Phase matching The red dots (1, 2, 3) show the trajectory for an injection phase error. The blue dot with energy and phase matching The phase offset within uncertainty window [tsyn - δtsyn, tsyn+ δtsyn] is near 1º. which meets the phase requirement. Stationary bucket in phase space GSI Accelerator Test setup FAIR complex will consist of 12 accelerators First Stage UNILAC SIS18 SIS100 ... Beams: Anti protons Protons to uranium Energy: Design ion beam: U28+ with 2.7 GeV/u 5x1011 Ions/Cycle Protons up to 29 GeV/u Heavy ion beams up to about 11 GeV/u On each machine, a FAIR receiver node of the timing systemis coupled to the rf-system. When triggered by an event of the timing system, each node measures the rf-phase with respect to the absolute time. By exchanging these two measured values, each obtains the phase difference of bucket and bunch in the two machines. Example when rf signal is derived from Butis Uncertainty for t18best < t100best FAIR timing system: BuTis and GMT The GMT and BuTis systems are coupled. Uncertainty for t18best > t100best General machine timing system (GMT): Control group Distributes accelerator events Distributes absolute time defines time standard for CS Sub ns precision / synchronization One global timing master Bunch phase timing system (BuTiS ): RF group Distributes high precision clocks for rf systems 100ps/km accuracy/ synchronization One global BuTiS center ============================================================== time:0x423c51cdc83 1970-01-01 01:15:51.0.677369475 -------------channel 0 timestamp time:0x423c51cdec5 1970-01-01 01:15:51.0.677370053 **************channel 1 timestamp Beating number:5780 Synchronization time:5.780000ms Estimate time for alignment :0x423c5750ea3(1ns) 1970-01-01 01:15:51.0.683149475 Error propogation 14.143us Period of synchronization is :10000000.000ns ECA current time :0x8478f37e1b(8ns) time:0x423c79bf0d8 1970-01-01 01:15:51.0.719252184 Bunch to bucket transfer A bunch of particles must be extracted from the source machine to be injected in the centre of a bucket of the target machine.(eg. the figure below shows the U28+ transfer from SIS18 to SIS100, eight of ten buckets will be injected) Tasks Source machine Target machine Time requirement for synchronization < 20ms Linux OS: program latency ≈ 60ms Need hard real-time system Synchronization two synchrotrons Soft-Core LM32 in FPGA RF frequency beating eg. and rf signal from SIS18 ≈ t18best < t100best t18best > t100best package time stamp t1 Exchanging information signal of synchronization DM FPGA rf signal from SIS100 ≈ package time stamp t2 Exchanging information signal of synchronization FPGA Δf The frequency detuning of SIS18 frfSIS18 ,frfSIS100 The rf frequency of SIS18/ SIS100 tsyn The best estimation time for synchronization t18best ,t100best The adjacent timestamps of zero crossing point of two rf signals n The number of rf cycles of SIS100 to realize synchronization Conclusion This setup theoretically simulates the synchronization of two synchrotrons, with accuracy of 1º. It paves the way for the further bunch to bucket transfer.