RF Processing & Breakdown

 

Meeting Notes:

·         06/19/07: S. Doebert et al - PAC07 Paper on HDX11 Copper and Mo results

·         03/16/07: C. Adolphsen et al - CERN C11vg5Q16 Processing Summary and Autopsy Photos

·         08/09/04: CA / SD --  Update of 8 Structure Performance and Time Dependence of Trip Rates

·         08/09/04: C. Adolphsen -- Long Term Performance of FNAL Linac 805 Mhz Cavities

·         08/02/04: CA / SD / TO  --  Venting Tests, Structure Performance and GLCTA Results

·         07/19/04: C. Adolphsen et al -- Results from Past Two Months.

·         05/24/04: C. Adolphsen et al -- Results from Past Two Months (before KEK ITRP visit).

·         03/15/04: S. Doebert et al -- H60VG4R17-2 Processing  Results.

·         03/15/04: S. Doebert et al -- CERN Laser Pulse Heating Studies.

·         03/15/04: C. Adolphsen et al -- H60VG3S17-FXC3 Processing Results.

·         03/15/04: C. Adolphsen et al -- Eight Pack Diode Data Analysis.

·         03/01/04: S. Doebert et al -- CERN Analysis of Moly Irises.

·         03/01/04: C. Adolphsen et al -- H60VG4R17-2 Processing  Results.

·         03/01/04: C. Adolphsen et al -- H60VG3S17-FXC3 Processing  Results.

·         03/01/04: S. Doebert et al -- H60VG3_FXB6&7 Processing  Results.

·         02/09/04: C. Adolphsen et al -- H60VG4S17-1 and H60VG3S17-FXC1  Processing  Results.

·         02/09/04: S. Doebert et al -- H60VG3_FXB6&7 Processing  Results.

·         01/26/04: C. Adolphsen et al -- H60VG4S17-1 Processing  Results.

·         01/26/04: S. Doebert et al -- H60VG3_FXB6&7 Processing  Results..

·         01/12/04: C. Adolphsen et al -- H60VG4S17-1 Processing  Results.

·         01/12/04: S. Doebert et al -- H60VG3_FXB6&7 Processing  Results..

·         12/01/03: C. Adolphsen et al -- H60VG4S17-1 Processing  Results.

·         12/01/03: C. Adolphsen et al -- H60VG3R17 Processing  Results.

·         11/10/03: S. Doebert -- Vacuum Considerations.

·         11/10/03: C. Adolphsen et al -- H60VG3R17 Processing  Results.

·         10/20/03: S. Doebert et al -- CERN Mo Structure (C30vg4-Mo)  Processing  Results..

·         10/20/03: C. Adolphsen et al -- H60VG3R17 Processing  Results

·         10/20/03: PEL Group -- Plasma Discharge Cleaning of NLCTA Cells.

·         09/22/03: C. Adolphsen et al -- H60VG3S18 Processing  Results.

·         09/18/03: PEL Group -- Report on Stainless Steel Found in Cell 35 of H90VG3.

·         09/08/03: S. Doebert et al -- CERN Mo Structure (C30vg4-Mo)  Processing  Results.

·         09/08/03: C. Adolphsen et al -- H60VG3S18 Processing  Results.

·         08/18/03: S. Harvey -- Report on PEL Analysis Activities.

·         08/18/03: K. Adamson -- Effects of Mechanical Hardness on RF Breakdown.

·         08/18/03: PEL Group -- Report on Slotted FNAL Cells.

·         08/18/03: PEL Group -- Report on Heat Treated FNAL Cells.

·         07/21/03: CA, SD, VD, JN, FLP et al -- H60VG3S18/FXB4 and SW20a375 Processing Results

·         06/23/03: F. Le Pimpec -- H60VG3(FXB4) RGA Results

·         06/09/03: J. Nelson et al -- SW20a375 Acoustic Sensor Results

·         05/29/03: S. Harvey et al -- T53VG3R, T53VG3RA SEM/EDS Analysis Update

·         04/28/03: S. Doebert et al -- Dark Current Measurements

·         04/28/03: S. Doebert et al -- H60VG3(FXB3) Results

·         04/28/03: C. Adolphsen et al -- H60VG3N(6C) and H60VG3(FXB3)  Results

·         03/31/03: C. Adolphsen et al -- H60VG3N(6C) and H90VG3N Results

·         03/31/03: J. Nelson et al -- H60VG3N(6C) Acoustic Sensor Results: Spitfests & Comparison to RF Results 

·         03/25/03: C. Adolphsen et al -- H60VG3N(6C) and H90VG3N Results

·         03/17/03: C. Adolphsen et al -- H60VG3N(6C) and H90VG3N Results

·         03/17/03: S. Doebert et al -- H60VG3N(6C) and H90VG3N Breakdown Rate vs Gradient and Pulse Length 

·         03/03/03: C. Adolphsen et al -- H60VG3N(6C) and H90VG3N Results

·         03/03/03: C. Sloan / S. Harvey -- Copper Contamination Issues 

·         02/24/03: C. Adolphsen et al -- H60VG3N(6C) Results

·         02/24/03: C. Adolphsen et al -- H90VG3N Results 

·         02/24/03: S. Doebert et al -- Current Emission During Breakdown

·         02/24/03: F. Le Pimpec et al -- H90VG5 Autopsy Results 

·         02/10/03: J. Cornuelle -- Comparison of Metal Properties with Respect to RF Breakdown

·         02/10/03: B. Kirby et al -- Structure Fabrication Witness Coupons: SEM Images and XPS Concentrations

·         02/10/03: C. Adolphsen et al -- H60VG3N(6C) Results

·         02/10/03: C. Adolphsen et al -- H90VG3N Results when Processed on its Own

·         01/27/03: C. Adolphsen et al -- H90VG3N and H60VG3_FXB002 Results when Processed as a Pair

·         01/27/03: S. Harvey et al -- PEL Results on Particles Counts, Al Found in H90VG5, and Coupon Analyses. 

·         12/17/02: B. Kirby et al -- NLCTA H90VG5 Cell 13 Bonding

·         10/10/02: S. Harvey et al -- Particle Search on R and RA

·         09/23/02: F. Le Pimpec et al --  Input Coupler (differences)

·         09/03/02: B. Kirby et al -- An RA (Coupler+Iris) Peek

·         08/05/02: S. Harvey et al -- T53vg3R_RA

·         06/12/02: F. Le Pimpec et al -- Autopsy T53VG3R Input Coupler

·         02/19/02: D. Miller et al -- Boroscope Photos of the Downstream End of T53VG3R

·         11/06/01: B. Kirby et al -- How Long to Etch the Next Structure?

·         11/01/01: B. Kirby et al -- Plasma Discharge Cleaning of NLCTA Cells

·         10/14/01: V. Dolgashev / M. Ross -- Select and averaged video images of breakdown in Standing Wave Structure 1 (beam's eye view) 

·         10/14/01: V. Dolgashev / M. Ross -- Movie (51 MB AVI ) of video images of breakdown in Standing Wave Structure 1 (beam's eye view). 

·         09/24/01: C. Adolphsen -- T53VG5/T53VG3 Processing Results and Comparison to T20VG5/T105VG5

·         09/24/01: V. Dolgashev -- Measurements of Load (S/N 114) Reflected Power

·         09/24/01: F. Le Pimpec -- Boroscope and Acoustic Sensor SW Structure Measurements

·         09/24/01: D. Miller -- Standing Wave Structure Boroscope Images

·         06/01/01: R. Kirby et al -- High-Pressure Water-Rinse Cleaning of Copper

·         05/01/01: F. Marcelja et al -- Radial Particle Distribution in Two DS2 Cells

·         04/01/01: R. Kirby et al -- SLAC EDX/Auger of Cornell Nb Breakdown Test Plate B2

·         03/09/01: S. Dobert -- Experimental Results from the 30 GHz High Power Tests at CTFII

·         02/22/01: R. Kirby and C. Pearson -- H2 firing of stainless steel

·         02/06/01: R. Kirby -- Brand New Cell Autopsy

·         01/22/01: R. Kirby -- DS2 Structure Autopsy

·         08/07/00: Marc Ross -- Scope data from DDS1 breakdown events

·         08/07/00: Chris Adolphsen -- Beamed-Based Structure Phase Measurements with Comparisons to Bead Pull Results.

·         08/07/00: Chris Adolphsen – Simulation of RF Propagation in Accelerator Structures

·         08/07/00: Chris Adolphsen –Breakdown Events in DDS1 with Nominal and Low Reflected Energy Thresholds.

·         08/07/00: Rod Loewen - Reflected and Transmitted RF Signals for Breakdown Events in DS1.

·         08/07/00: Chris Adolphsen – Volume of Copper Removed from the Cell Irises of DDS1.

·         11/03/99: Rod Loewen -- Final M2 Processing Results Plus Data from DS1 and DDS1

·         11/03/99: Lisa Laurent -- Dependence of Dark Current & RF Breakdown in Cavity Noses on Gas Pressure

·         06/16/99: Lisa Laurent -- Recent Results from Studies of RF Breakdown in Cavity Noses

·         06/09/99: Rod Loewen -- Results from Processing M2 with Reverse Power Flow to a Max Gradient of 130 MV/m

·         03/10/99: Arnie Vlieks -- Results from the RF Processing of Planer Hybrids & WRMCs in ASTA @ 485 MW

·         03/10/99: Glenn Scheitrum -- Status of the Cavity-Nose Processing Program

·         02/24/99: Rod Loewen -- Twenty Images of DS1 Reflected & Forward RF Waveforms during Breakdown

·         02/24/99: Chris Adolphsen -- Structure Impedance & Comparison of Damage -vs- Available Arc Energy

·         02/17/99: Sami Tantawi -- Analytical Modeling of RF Breakdown - Part I

·         02/17/99: Chris Adolphsen -- Comparison of Structure Processing Results

·         02/17/99: Chris Adolphsen -- Photos of Structure & Klystron Irises After RF Processing

·         02/17/99: Tim Slaton -- A First Look at DDS1 Forward & Reflected RF Signals During Breakdown

·         02/10/99: Lisa Laurent -- Recent Results from Studies of RF Breakdown in Cavity Noses

·         02/03/99: George Caryotakis -- Status of Klystron Department Work & Future Plans

·         02/03/99: Rod Loewen -- M2 & DS1 Processing Results from ASTA

·         02/03/99: Chris Adolphsen -- DDS1 Processing Results from NLCTA & Proposed Studies