J-PARC Beam Instabilities and Impedance Group Home Page


TABLE OF CONTENTS

·        Link to Dr. Toyama's old home page

 

 

·        Presented materials since December 2004

·        (Click the above to see all presentations classified by the date or upload files)

 

·        December 1, 2004,      Shobuda, 

o       Impedance of ceramic chamber with RF shields

·        December 15, 2004,    Chin,

o       Impedance of ceramic chamber

o       Heating at TiN coating

o       Impedance of slits between RF shields

o       Dipole radiation from the slits between RF shields

o       Resistive impedance of EM-SUS pipes

·        December 15, 2004,    Shobuda

o       Impedance of ceramic chamber with RF shields

·        January 5, 2005,           Chin

o       Impedance of slits between RF shields including the effect of ceramic

o       Dipole radiation from the slits between RF shields for the real configuration of ceramic chamber

·        January 5, 2005,           Shobuda

o       Impedance of ceramic chamber as a cavity formed by the Ti chamber, RF shields, and ceramic

·        January 19, 2005,         Chin (pdf): or TIF file

o       Revisit of dipole radiation from the slits between RF shields for the real configuration of ceramic chamber

o       EM-field at the near static zone from the ceramic chamber

o       RCS impedance budget Part 1

o       A scheme to find a shorted capacitor in the ceramic RF shields

·        February 9, 2005,        Chin (pdf): or TIF file

o       Summary of RCS impedance budget and beam instabilities estimates

·        February 9, 2005,        Shobuda

o       Instability calculations for RCS

·        February 9, 2005,        Shobuda

o       Instability calculations for MR

·        February 9, 2005,        Toyama

o       Impedance measurements of the ceramic chamber with Cu shields and TiN coating

·        February 24, 2005,      Chin and Shobuda

o       Presentation at ATAC2005 for Beam instabilities and impedance budget for RCS and MR

·        March 23, 2005,          Chin and Takata (pdf) or TIF file

o       Impedance and radiation from a gap in the metal chamber

·        March 23, 2005,          Shobuda

o       On the wire-method

·        April 6, 2005,               Shobuda

o       Beam instability simulation code and the wire-method

·        May 25, 2005, Chin

o       Impedance and radiation from a gap in the metal chamber- semi final

·        May 25, 2005              Shobuda

o       Wire-method

·        June 8, 2005,               Chin

o       Radiation from a chamber gap – above the cutoff and cavity case

·        June 8, 2005,               Shobuda

o       Radiation from a chamber gap – exact integral solution

·        June 8, 2005,               Toyama

o       Testing of the ceramic chamber at PS

·        July 5, 2005                 Shobuda

o       Gap impedance

·        July 5, 2005                 Shobuda

o       Simulation bench marking

·        July 5, 2005                 Toyama

o       2nd Testing of the ceramic chamber at PS

·        September 6, 2005       Shobuda

o       Impedance calculations of bellows with ABCI

·        September 6, 2005       Shobuda

o       Bench mark of the instability simulation code

·        October 4, 2005          Shobuda

o       Transverse instabilities with non-zero chromatisity

·        October 4, 2005          Shobuda

o       Bench mark of the instability simulation code part2

·        October 4, 2005          Shobuda

o       Bellows and step: ABCI calculation of impedance (bellows with step, bellows alone, step alone)

·        October 18, 2005        Shobuda

o       Bench mark of the instability simulation code part3

·        December 6, 2005       Toyama

o       On the measurement of the kicker impedance using a single wire

·        January 17, 2006          Shobuda

o       Simulations results of instabilities at RCS and MR

·        May 30, 2007              Chin

o       Ceramic capacitor info from muRata

·        August 1, 2007             Chin

o       Ceramic break shield information

·        September, 5, 2007      Toyama

o       Measurement results of MR kicker impedance

·        September  6, 2007      Shishlo

o       ORBIT introduction

·        September 27, 2007     Shishlo

o       Report on ORBIT for RCS

·        March 12, 2008           Tobiyama

o       MR transverse damper system

·        June 10, 2010              TV Conference

o       Preparation for Beam Study on June 15

o       Study result Part 1

o       Study result Part 2 (mode analysis)

·        November 18, 2010     TV Conference

o       Preparation for Beam Study on December 23

o       Study result

o       Measurement and analysis of oscillation near injection by SPM

·        February 1, 2011         TV Conference

o       Preparation for Beam Study on February 3

o       Study result

o       MR injection kicker impedance

o       MR fast extraction kicker impedance

o       MR stainless steel impedance

·        February 14, 2011

o       Rehearsal for ATAC2011

o       Shobuda

o       Toyama

·        May 10, 2011              Chin

o       Development plan of a new feedback system for internal bunch oscillations

·        January 11, 2012          TV Conference for RUN40 FB Beam Study on Jan. 11, 2012

o       Must-Measure Issues (Chin)

o       New BPM circuit (Tobiyama)

o       New Power Supply Configuration (Toyama)

o       RUN 40 Schedule Plan (Satoh)

 

All questions regarding to this home page should be addressed to

Yong Ho Chin (yongho.chin@kek.jp)


Return to J-PARC HomePage


Last updated on May 10,  2011 by Y. H. Chin