Program

Operating SRF Systems reliably in a "Dirty" Machine

Sponsored by: Helmholtz-Zentrum Berlin FG-ISRF Group

A workshop to explore the challenges of running SRF systems in an accelerator environment that may not meet the stringent requirements for high voltage SRF operation. The aim of the workshop is to gather together the expert community to compile experience with these operating conditions and develop recipes for the reliable operation of high-voltage SRF. 

 

Thursday the 14th of September: Day 1
TIME Sessions and Talks  
08:30 Registration and badge collection 00:15
  Introduction and welcome  
08:45 Introductary talk by Jens Knobloch 00:10
  Session 1: Overview of the status Quo: Emmy Sharples  
08:55 Attending Labs overview talk
Various Facilities
00:30
09:25 BESSY VSR: Providing a pulse pattern using SRF Cavities
Pierre Schnizer HZB
00:15
  Session 2: Focus on contamination: Emmy Sharples  
09:40 Controlling Particulates and Dust in Vacuum Systems
Lutz Lilje DESY
00:40
10:20 Discussion 00:15
10:35 Coffee Break 00:30
  Session 3: Long term operation: Chris Christou  
11:05 15 years of CW SRF operation at ELBE
Andre Arnold HZDR
00:15
11:20 Review of SRF Operation at NSRRC
Chaoen Wang NSRRC
00:15
11:35 Status and Operation Experiences of BEPCII SRF System
Jaianping Dai IHEP
00:15
11:50 Overview of SRF at STFC Daresbury
Pilippe Goudkett STFC Daresbury
00:15
12:05 Operation Experiences of SRF System from PLS-II
Younguk Sohn POSTECH
00:15
12:20 Disscusion 00:30
12:50 Lunch 01:00
  Session 4: Long term operation and degredation: Eiji Kako  
14:00 Overview of cavity reliability at Diamond Light Source
Chris Christou Diamond Lightsource
00:15
14:15 Long term operation of S-DALINAC
Michaela Arnold IKP, TU Darmstadt
00:15
14:30 Performance degradation seen in CEBAF – types and timescales
Charlie Reece JLAB
00:15
14:45 Performance mitigation options used in CEBAF
Charlie Reece JLAB
00:15
15:00 Horizontal HPR in SRF module of SuperKEKB
Michuiru Nishiwaki KEK
00:15
15:15 Discussion 00:30
15:45 Coffee Break 00:30
  Session 5: Degredation, Mitigation and Eliminating accelerator contamination: Charlie Reece  
16:15 Degradation and recovery of cavity performance in cERL injector cryomodule
Eiji Kako KEK
00:15
16:30 Partial warm ups at CLS
Chris Regier CLS
00:15
16:45 Field emission minimization for LCLS-II
Andrew Burrill SLAC
00:15
17:00 Developing Particle Control Infrastructure for the ESS High Beta Project at STFC Daresbury Lab
Mark Pendleton STFC Daresbury
00:15
17:15 Developing and using particulate assays to manage cryomodule contamination
Charlie Reece JLAB
00:15
17:30 Discussion 00:30
18:00 End  
       
19:00-22:00 Workshop Dinner
 
Friday the 15th of September: Day 2
TIME Sessions and Talks  
  Session 6: Eliminating accelerator contamination: Chris Regier  
08:45 First ideas about particle free installation of BESSY VSR
Daniel Volk HZB
00:15
09:00 Basic study of the particle measurement in vacuum condition
Hiroshi Sakai KEK
00:15
09:15 Preparation of the SRF Linac installation on the Linear IFMIF Prototype Accelerator
Takahiro Shinya QST
00:10
09:25 Progress of Linear IFMIF Prototype Accelerator (LIPAc) project and issues for installation of SRF linac to the beam line
Atasushi Kasugai QST
00:10
09:35 Experiences with the FLASH Vacuum System
Lutz Lilje DESY
00:15
09:50 Discussion 00:30
10:20 Coffee Break 00:30
  Session 7: Eliminating accelerator contamination: Lutz Lilje  
10:50 Creating cleanroom conditions outside cleanroom
Birte Van der Horst DESY
00:15
11:05 Overview MESA SRF system and machine design
Florian Hug JGU Mainz
00:15
11:20 The European Spallation Source
Felix Schlander ESS
00:15
11:35 Compatibility of superconducting cavity and "foreigner" photocathodes in SRF gun
Rong Xing HZDR
00:15
11:50 Discussion 00:30
12:30 Lunch 01:00
  Session 8: Eliminating accelerator contamination: Andre Arnold  
13:30 Effective designs for successful performances
Birte Van der Horst DESY
00:15
13:45 Installation of superconducting cryomodules to the 37 year old heavy-ion linac at RIKEN
Naruhiko Sakamoto RIKEN
00:15
14:00 Cold string design for Bessy VSR
Hans-Walter Glock HZB
00:15
14:15 Conclusion by session Chairs and round table 01:15
15:30 Tours