RF Specification discussion MICE RF workshop 16 th April 2012.

Slides:

Advertisements

Similar presentations

Introduction to RF for Accelerators

Advertisements

ESLS 04 Daresbury Laboratory

Andrew Moss ASTeC MICE RF workshop 16t h February 2012 Daresbury Laboratory Response to RF review for the MICE RF system.

Thomas Jefferson National Accelerator Facility CWL/Kovar/March 1, 2007 Page 1 Determining Loaded-Q for SRF Cavities Used In ERLs (What do you mean it is.

1 paul drumm; Jan’05; MICE RF Needs MICE RF Power Paul Drumm ISIS Facility Rutherford Appleton Laboratory & MICE.

MICE RF Cavities and RFCC Module Update Derun Li Lawrence Berkeley National Laboratory MICE RF Workshop Daresbury Laboratory, UK April 17, 2012 April 17,

1 RF Workshop 16 th & 17 th April 2012 Design Layout Alan Grant, STFC.

11/27/2007ILC Power and Cooling VM Workshop Mike Neubauer 1 RF Power and Cooling Requirements Overview from “Main Linac Power and Cooling Information”

Andrew Moss ASTeC MICE Project Board 28 th June 2011 MICE RF System.

30 th September 2004 High Power RF Couplers James Rogers High Power RF Couplers ELSRF Daresbury Laboratory.

HIGH POWER SYSTEMS FOR WIND PROFILER K. P. Ray K. P. Ray Society for Applied Microwave Electronics Engineering & Research IIT campus, Powai, Mumbai-400.

Collaboration meeting, RAL, 4 th – 7th November 2009 Andrew Moss ASTeC Collaboration meeting, RAL, 10 th – 13 th november 2009 MICE RF Amplifier Status.

RF systems for MICE Andrew Moss The MICE RF Group and the TIARA WP7 Team Contributions include Daresbury, RAL, CERN, LBNL, LANL, FNAL, Strathclyde & Sheffield.

Andrew Moss Daresbury Laboratory Collaboration Meeting th 19 th October 2012 RAL MICE RF System review.

THE MICE RF SYSTEM J.F.Orrett* A.J.Moss, ASTeC, Daresbury Laboratory, WA4 4AD, UK Accelerator Science and Technology Centre

1 X-band Single Cell and T18_SLAC_2 Test Results at NLCTA Faya Wang Chris Adolphsen Jul

Thomas Roser Snowmass 2001 June 30 - July 21, MW AGS proton driver (M.J. Brennan, I. Marneris, T. Roser, A.G. Ruggiero, D. Trbojevic, N. Tsoupas,

Cell-Coupled Drift Tube Linac M. Pasini, CERN AB-RF LINAC4 Machine Advisory Committee 1 st meeting CERN January 29-30, 2008.

H. Haseroth Thursday, February 5-8, 2002 MUCOOL / MICE 1 RF & RF power H. Haseroth CERN  Situation of 88 MHz test cavity  Availability of amplifiers.

MuCool RF Status MICE Collaboration Meeting June 7-10, 2006, Fermilab A. Moretti June 9, 2006.

Andrew Moss ASTeC 7 th December 2011 MICE RF System.

Andrew Moss Daresbury Laboratory Collaboration Meeting th -16 th February 2013 Coseners House MICE RF HP System rprogress.

Collaboration meeting, DL, 19 h – 23 h October 2008 Andrew Moss ASTeC Collaboration meeting, DL, 19 th – 23 th October 2008 MICE RF distribution system.

201 MHz and 805 MHz Cavity Developments in MUCOOL Derun Li Center for Beam Physics Lawrence Berkeley National Laboratory Nufact 2002 Workshop, London,

A U.S. Department of Energy Office of Science Laboratory Operated by The University of Chicago Argonne National Laboratory Office of Science U.S. Department.

RF Distribution Alternatives R.A.Yogi & FREIA group Uppsala University.

Brookhaven Science Associates U.S. Department of Energy AGS Upgrade and Super Neutrino Beam DOE Annual HEP Program Review April 27-28, 2005 Derek I. Lowenstein.

Andrew Moss ASTeC Collaboration meeting CM29 15 th - 18 th February 2011 MICE RF System.

EDM2001 Workshop May 14-15, 2001 AGS Intensity Upgrade (J.M. Brennan, I. Marneris, T. Roser, A.G. Ruggiero, D. Trbojevic, N. Tsoupas, S.Y. Zhang) Proton.

Recent RF Development at Fermilab Weiren Chou and Akira Takagi Fermilab, U.S.A. July 7, 2003 Presentation to the FFAG03 Workshop July 7-12, 2003, KEK.

Andrew Moss ASTeC CM32 9t h February 2012 RAL MICE RF System.

W. 3rd SPL collaboration Meeting November 12, 20091/23 Wolfgang Hofle SPL LLRF simulations Feasibility and constraints for operation with more.

Anders Sunesson RF Group ESS Accelerator Division

RF system issues due to pulsed beam in ILC DR October 20, Belomestnykh, RF for pulsed beam ILC DR, IWLC2010 S. Belomestnykh Cornell University.

1 SPL Collaboration Meeting dec 08 - WG1 Introduction First SPL Collaboration Meeting Working Group 1 High Power RF Distribution System Introduction.

ECE 662 – Microwave Electronics

13 th April 2007FFAG 07 Carl Beard EMMA RF System Carl Beard, Emma Wooldridge, Peter McIntosh, Peter Corlett, Andy Moss, James Rogers, Joe Orrett ASTeC,

PROTON LINAC FOR INDIAN SNS Vinod Bharadwaj, SLAC (reporting for the Indian SNS Design Team)

CLARA Gun Cavity Optimisation NVEC 05/06/2014 P. Goudket G. Burt, L. Cowie, J. McKenzie, B. Militsyn.

Ding Sun and David Wildman Fermilab Accelerator Advisory Committee

RF scheme of electron linear accelerator with energy MeV Levichev A.E. Budker Institute of Nuclear Physics SB RAS.

Renovation of the 200 MHz RF system LLRF issues. Cavities redistribution 26 October th LIU-SPS Coordination Meeting 2  2011 : 4 cavities 2 x 4.

FFAG Studies at RAL G H Rees. FFAG Designs at RAL Hz, 4 MW, 3-10 GeV, Proton Driver (NFFAGI) Hz,1 MW, GeV, ISIS Upgrade (NFFAG) 3.

A. Bross MICE CM17 February MuCool RF Program 805 and 201 MHz Studies.

704 MHz warm cavity November 4, 2015 A.Zaltsman: SRF & warm RF components for LEReC1  A single cell 704 MHz warm cavity is used to correct the beam energy.

DTL Option for MEIC Ion Injection Jiquan Guo, Haipeng Wang Jlab 3/30/

High Gradient RF Issues and 88 MHz test results M. Vretenar for the 88 MHz team: R. Garoby, F. Gerigk, J. Marques, C. Rossi, M. Vretenar -The.

Andrew Moss ASTeC TIARA Mid term meeting 12 th 14 th June 2012 CIEMAT ICTF Progress on the MICE RF System.

MICE RF Power Status Paul Drumm ~ Sunday August 1 st 2004.

FREIA: HIGH POWER TEST STAND Rutambhara Yogi & FREIA Group ESS RF Group Unit Leader for Spoke Power and RF Distribution FREIA Group Unit Leader, Uppsala.

Power Supply Design Howie Pfeffer Mu2e Extinction Technical Design Review 2 November 2015.

Project X High Power 325 MHz RF Distribution and Control Alfred Moretti, Nov 12, 2007 Project X Workshop.

RF Module Integration Colin Whyte University of Strathclyde on behalf of the MICE collaboration 1RF Review 9th & 10th Sept '15 Abingdon.

Design of a direct conversion 200 MHz non-IQ scheme using the Dimtel LLRF4 card Bob Anderson.

Linac RF System Design Options Y. Kang RAD/SNS/NScD/ORNL Project – X Collaboration Meeting April , 2011.

325 MHz Superconducting Spoke Cavity Coupler status. T. Khabiboulline Power Coupler design for Superconducting Spoke cavities. Originally.

Andrew Moss ASTeC, Daresbury Laboratory October 2010 MICE RF Amplifier Status.

ILC Power and Cooling VM Workshop

High efficiency work and MBK development for accelerators

CEPC APDR Study Zhenchao LIU

Wideband, solid-state driven RF systems for PSB and PS longitudinal damper.

Physics design on Injector-1 RFQ

Application of the moderate peak power (6 MW) X-band klystron’s cluster for the CLIC accelerating structures testing program. I. Syratchev.

RF operation of REX-ISOLDE

CEPC RF Power Sources System

Test plan of ESS HB elliptical cavity

DTL for MEIC Ion Injection

Parameters Changed in New MEIC Design

RF Parameters for New 2.2 km MEIC Design

RF system for MEIC Ion Linac: SRF and Warm Options

Presentation transcript:

RF Specification discussion MICE RF workshop 16 th April 2012

High Power RF system High voltage power supplies for these amplifiers have been designed that will allow operation at 1 Hz and 1 ms RF pulse length. The amplifier system will be able to produce a maximum of 2 MW of RF power. This will be split between two cavities; however losses in the coax transmission system are expected to reduce the available power by up to ~10 % into each cavity coupler. The amplifier tubes will typically have a lifetime of at least hours, performance will degrade within that period which means power levels will decline. The MICE experiment is expected to run for approximately 3 years at a low duty cycle; therefore we expect that one set of tubes will be enough for the experiment. The minimum gradient useful for physics operation is 50% of the initial gradient. An accelerating gradient of up to 8 MV/m is possible for each cavity in the cooling channel, this equates to 21.4MV on crest acceleration, with each cavity powered by 1 MW of RF power. 6 1/8 inch and 4 1/16 inch transmission lines will be used. The safe RF working level for these coax systems is 1550 kW and 700 kW respectively (in air). RF pulse shaping will be used to reduce reflected power during cavity filling so that the peak break down voltage level is not exceeded. The coax system will be pressurised with 1.5 Bar of nitrogen to provide an additional voltage breakdown overhead of 10%

Cavity control A cavity phase angle of ~ 124 degrees will be fixed between cavities driven by a single amplifier system. This will allow muon acceleration to take place between 140 to 240 MeV/c with 98 % efficiency The field in the MICE cavities will be controlled to ~0.5 Degrees and 1 %. In order for the gradient loop to function the peak RF power delivered to the cavities will have to be 15-20% lower than the maximum available from the amplifier chain. This will reduce the cavity gradient. The control of absolute phase with respect to external time is not needed, since the experiment will measure time events during the each cycle. The cavities will be deformed to have a centre frequency of 201 MHz and have a tuning range of 230 kHz by using mechanical actuators on the cavity body. This tuning system will be active to remove temperature drifts caused by ambient and RF heating changes Experiment timing with RF is a issue which is only starting to receive some effort, currently there is no real understanding of what is needed here, need to agree the issues and put some effort on to it

RF specification summery

Procurement of components List of components that are possible to purchase based on this specification for this particular layout Fall back position for use at higher RF power levels will be to pressurise coax with SF6 – only option