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