16-17 March 2010 CERN Introduction by W. Weingarten Review of SPL RF power couplers 16/17 March 2010 Review of SPL RF power couplers 1.

Slides:

Advertisements

Similar presentations

RFQ development for high power beams

Advertisements

WG D: HOM Couplers and Loads Summary G. Burt & J. Delayen.

Machine Tools And Devices For Special Technologies Plasma machining Slovak University of Technology Faculty of Material Science and Technology in Trnava.

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

8 th ESLS RF Meeting 29 th – 30 th Sep Daresbury Lab 500 MHz ELETTRA Input Power Coupler B. Baricevic, A. Fabris, C. Pasotti.

1 Design of Gridded-Tube Structures for the 805 MHz RF Cavity Department of Mechanical, Materials, and Aerospace Engineering M. Alsharoa (PhD candidate)

Breakdown in Solid Dielectrics

Integration of Cavities and Coupling Coil Modules Steve Virostek Lawrence Berkeley National Laboratory MICE Collaboration Meeting March 28 – April 1, 2004.

1 Spacecraft Thermal Design Introduction to Space Systems and Spacecraft Design Space Systems Design.

Safety Review: RF Issues Derun Li Absorber Safety Review December 9-10, 2003 Lawrence Berkeley National Laboratory Berkeley, CA

Possible Assembly and Test of the Crab cryomodule in SM18 at CERN P. Maesen LHC Crab Cav meeting, 17 Sep’ 09 LHC-CC09Cryomodule Assembly & Test Stand.

Status of 325MHz coupler S. Kazakov 11/29/ MHz coupler structure.

Solar Cell conductive grid and back contact

Superconducting Accelerating Cryo-Module Tests at DESY International Workshop on Linear Colliders 2010 (ECFA-CLIC-ILC Joint Meeting) Denis Kostin, MHF-SL,

R&D Status and Plan on The Cryostat N. Ohuchi, K. Tsuchiya, A. Terashima, H. Hisamatsu, M. Masuzawa, T. Okamura, H. Hayano 1.STF-Cryostat Design 2.Construction.

The Sector 3-4 incident at the LHC: fault tree and corrective measures Ph. Lebrun Risk Analysis Review Committee CERN, 5 March 2009.

Accelerators for ADS March 2014 CERN Approach for a reliable cryogenic system T. Junquera (ACS) *Work supported by the EU, FP7 MAX contract number.

XFEL SRF Accelerating Module Prototypes Tests at DESY Fermilab Seminar, July 21st Denis Kostin, MHF-SL, DESY.

Aluminum Nitride (AlN)

A general comment first: The questions ITRP has posed to the proponents focus largely upon technical issues for the linear collider. These are important.

5 장 Dielectrics and Insulators. Preface ‘ Ceramic dielectrics and insulators ’ is a wide-ranging and complex topic embracing many types of ceramic, physical.

IHEP High Power Input Coupler Activity Report First Mini-workshop on IHEP 1.3 GHz Superconducting RF project June 10th, 2009, Beijing IHEP High Power Input.

Section 10.2 Energy Transfer. Methods of Energy Transfer There are 3 methods of energy transfer. Conduction Conduction Convection Convection Radiation.

Rossana Bonomi ESS Cryomodule Status Meeting, 9/1/2013.

Residual Stress in a Thin Film Resonator

1.3GHz Input Coupler for ILC

Experience with LEP (and LHC) cryo-modules Workshop on cryogenic and vacuum sectorisations of the SPL O.Brunner – November ’09.

11/4/2005OLAV 1 Workshop CERNW. Maan Fast Vacuum Valves at CERN -Introduction to fast valves -History of fast valves in use/used at CERN -LEP fast shutters.

Test plan for SPL short cryomodule O. Brunner, W. Weingarten WW 1SPL cryo-module meeting 19 October 2010.

56 MHz SRF Cavity Thermal Analysis and Vacuum Chamber Strength C. Pai

20 years of high average Fundamental Power Coupler designs at CERN CWRF workshop 2014, Trieste Eric Montesinos, CERN-RF, on behalf of many colleagues CWRF.

Manufacturing process, validation and factory test

Eric Montesinos - CERN - First SPL collaboration meeting - CERN December 11th 2008 First SPL collaboration meeting Experience with the LHC Main power Coupler.

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

Longitudinal HOM damping estimations for SPL cavity. status W. Weingarten 26 July 20101SPL Cavity WG Meeting.

Solar Cells need a top side conductor to collect the current generated They also need a conductive film on the backside.

Titanium Nitride Coating by Reactive DC Magnetron Sputtering as a Multipactor Suppressor on Coupler RF Ceramic Windows Walid KAABI Anti e - Cloud Coatings-

16-17 March 2010 CERN W. Weingarten DRAFT summary. rev Review of SPL RF power couplers 16/17 March 2010 Review of SPL RF power couplers 1.

29/04/03 F. Caspers (CERN):Chopper development evolution IPHI-SPL meeting April   Brief review of present status   Why to consider an alternative.

CRYOGENICS FOR MLC Cryogenic Principle of the Module Eric Smith External Review of MLC October 03, October 2012Cryogenics for MLC1.

RF power couplers vacuum issues J.M. Jimenez Vacuum, Surfaces and Coatings Group (TE-VSC)

MAIN LINAC CRYOMODULE DESIGN REVIEW INPUT COUPLER September 5, 2012V. Veshcherevich.

Rossana Bonomi R. Bonomi TE-MSC-CMI SPL Seminar 2012.

Date 2007/Sept./12-14 EDR kick-off-meeting Global Design Effort 1 Cryomodule Interface definition N. Ohuchi.

4/26/2013 Irina PetrushinaDeflecting cavity MHz for PXIE Irina Petrushina 4/26/2013.

Preparation procedure and RF processining of cERL-ML power coupler at KEK Hiroshi Sakai, Takaaki Furuya, Masato Sato, Kenji Shinoe, Kensei Umemori, Kazuhiro.

CDR2 – Coupler Mechanical Design NICOLAS MISIARA.

Study of Dielectric Loaded RF Cavity MAP MEETING - S EPTEMBER 23, 2011J ESSICA C ENNI.

Power couplers Timergali Khabiboulline (FNAL) FNAL-LBNL meeting on NGLS April 13, 2012.

Superconducting Accelerating Cryo-Module Tests at DESY TESLA Technology Collaboration (TTC) Meeting, February 28 - March , Milano, Italy Denis Kostin,

Estimate store energy and power dissipation in a simple DL pillbox cell K. Yonehara APC, Fermilab 11/5/14HPRF/RF breakdown meeting, K. Yonehara1.

RFQ coupler S. Kazakov 07/28/2015. Requirements: Coupler requirements Expected problems: Heating (loop, ceramic window, etc.) Multipactor Solutions: Appropriate.

Experience with the ferrite tuner for LEB ( ) Slava Yakovlev 15/04/2016.

R. Bonomi - SLHiPP2, Catania 3-4/5/20121 SPL Thermal Studies R. Bonomi Superconducting linacs for high power proton beams - Catania, 2012.

704 MHz cavity design based on 704MHZ_v7.stp C. Pai

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

SPL RF coupler: integration aspects

T5.2: Harmonization - Material and Component Reference

Development of X-band 50MW klystron in BVERI

Power coupler at DESY & for XFEL

Vacuum System Failures at HERA

CEPC Vacuum System Dong Haiyi 2017/11/5.

SNS Fundamental Power Coupler History

V. Veshcherevich Cornell University

Main Coupler R&D at DESY

COOLING OF POWER DEVICES

CEPC Input Coupler Discuss 6th IHEP-KEK SCRF Collaboration Meeting

Cryomodules Challenges for PERLE

System tests at CEA O. Piquet 19/03/2019

V. Veshcherevich Cornell University

Presentation transcript:

16-17 March 2010 CERN Introduction by W. Weingarten Review of SPL RF power couplers 16/17 March 2010 Review of SPL RF power couplers 1

Cavity not operational or operation compromised due to fault originated from power coupler (PC), its operation, assembly, design, etc. Cavity contaminated Non dust-free assembly of PC /insufficient on-line monitoring of dust content in air Material peel off from PC outer conductor Break of RF window Vacuum leak Excessive reflected power Excessive cryogenic load Multipactor discharge in window Excessive mechanical stress (differential contraction) RF losses in joints Arcing or discharge in coaxial line Overheating of coupler tip Inadequate cooling of outer conductor Cooling fluid flow too high/low/non turbulent Cooling fluid flow too high/low/non- turbulent Joint located unfavourably in presence of standing wave (high E/H field) Faulty design of joint or wrong choice of material Inadequate cleaning of substrate Choice of thermally incompatible materials Too high secondary coefficient /wrong material Beam breakup due to periodic field perturbation by power coupler Wrong choice of cooling gas/liquid Wrong choice of cooling fluid (gas/liquid ) Multipactor discharge in coaxial line Wrong geometry favoring resonant condition Field flatness inadequate (faulty control of mechanical tolerances) Too high secondary coefficient /wrong material Wrong geometry favoring resonant condition Evaporation by RF power of particulate or gas deposits Excessive temperature (poor electrical conductivity) Multipactor discharge in coaxial line Too high secondary coefficient /wrong material Wrong geometry favoring resonant condition Error in coating parameters /thickness wrong OR gate AND gate Basic event Kind of Fault Tree Analysis Excessive mechanical stress (differential contraction) dissipation Poor cooling of ceramics Ceramics with high dielectric losses RF window located unfavourably in presence of standing wave (high E/H field)

RF window Excessive mechanical stress (differential contraction) RF window located unfavourably in presence of standing wave (high E/H field) Poor cooling of ceramics Ceramics with high dielectric losses Coaxial line and materials Error in coating parameters /thickness wrong Inadequate cleaning of substrate Discharges, arcing, multipactor Wrong geometry favoring resonant condition Too high secondary coefficient /wrong material Evaporation by RF power of particulate or gas deposits 16/17 March 2010 Review of SPL RF power couplers 3

Cryogenic issues Cooling fluid flow too high/low/non-turbulent Wrong choice of cooling fluid (gas/liquid) RF power issues and RF joints Faulty design of joint or wrong choice of material Joint located unfavourably in presence of standing wave (high E/H field) Clean assembly Non dust-free assembly of PC /insufficient on-line monitoring of dust content in air Excessive mechanical stresses Excessive temperature (poor electrical conductivity) Choice of thermally incompatible material s (differential contraction) Beam stability issues Beam breakup due to periodic field perturbation by power coupler 16/17 March 2010 Review of SPL RF power couplers 4