Name: 6th SRF Materials Workshop
Start: 2010-02-18T08:00:00-06:00
End: 2010-02-20T18:00:00-06:00
Location: No location set

6th SRF Materials Workshop

from Thursday, 18 February 2010 (08:00) to Saturday, 20 February 2010 (18:00)

Monday, 15 February 2010
Tuesday, 16 February 2010
Wednesday, 17 February 2010
Thursday, 18 February 2010

08:00 Continental Breakfast
Continental Breakfast
08:00 - 08:30
08:30 Opening remarks and workshop guidelines - Cooley (FNAL)
Opening remarks and workshop guidelines
- Cooley (FNAL)
08:30 - 08:40
08:40
08:40 - 10:10
Contributions

08:40 Materials issues from FNAL/ANL 1.3 GHz processing experience and consideration of Project X at 650 MHz - Cooley (FNAL)

09:00 Can we predict performance of 650 MHz cavities? - Sergatskov (FNAL)

09:10 Heat treatment and passivation of SRF Nb cavities - Ciovati (JLab)

09:20 Laser heating investigation of SRF cavities - Ciovati (JLab)

09:30 Migration of quench location - Sergatskov (FNAL)

09:40 Locating Quenches With Second Sound - Liepe (Cornell)

09:50 Discussion
10:10 Break
Break
10:10 - 10:30
10:30
10:30 - 12:20
Contributions

10:30 Search for pit formation mechanisms – weld coupon electropolishing - Cooley (FNAL)

10:40 Recent developments in understanding the mild baking effect - Romanenko (FNAL)

11:00 Effect of Low T baking on field emission and Nb surface oxide layer structure - Wu (JLab)

11:10 Annealing Temperature and Thermal Conductivity of Superconducting Niobium - Wright (MSU)

11:20 Further evidence for localized magnetic moments in the surface oxides of air-exposed niobium - Zasadzinski (IIT)

11:30 Fundamental Surface Chemistry Studies of Niobium Oxidation - Nakajima (UChicago)

11:40 Evidence for suppressed superconductivity across buffer chemically polished grain boundaries of SRF quality niobium - Sung (FSU)

12:00 Discussion
12:20 Lunch
Lunch
12:20 - 13:40
13:40
13:40 - 15:00
Contributions

13:40 Effects of materials defects on the physics of SRF - Gurevich (FSU)

14:00 Superheating field of niobium - Liepe (Cornell)

14:20 Vortex dissipation as an origin of Q-slope and quench - Dzyuba (FNAL)

14:40 Discussion
15:00
15:00 - 15:30
Contributions

15:00 Basic mechanisms of electropolishing - Reece (for Tian, JLab)

15:20 Development of computational algorithms to predict surface morphology and evolution during electropolishing - Brankovic (Houston)
15:30 Break
Break
15:30 - 15:50
15:50
15:50 - 17:50
Contributions

15:50 Integrated Cavity Processing at JLab - Reece (JLab)

16:00 EP temperature control strategies - Reece (JLab)

16:10 FNAL Integrated Cavity Processing Apparatus for single-cell R&D - Cooper (FNAL)

16:20 Industrialization of vertical electropolishing - Conway (Cornell)

16:40 VEP at JLab - Reece (JLab)

16:50 The need for tumbling and recent tumbling results at FNAL - Cooper (FNAL)

17:00 Fluoride-free electropolishing of niobium cavities for next-generation particle accelerators - Zhao (Va. Tech)

17:10 Processing Effects and Use of Electrochemical Abrasive Jet Polishing for Nb-SRF Cavities - Muftu (Northeastern)

17:20 Faradayic electropolishing - Inman (Faraday Technology)

17:30 Discussion
Friday, 19 February 2010

08:00 Continental Breakfast
Continental Breakfast
08:00 - 08:30
08:30 Opening remarks - Cooley (FNAL)
Opening remarks
- Cooley (FNAL)
08:30 - 08:35
08:35
08:35 - 09:50
Contributions

08:35 Light vs. heavy electropolishing - Reece (JLab)

08:45 Restoration of maximum gradient by laser re-melting a cavity pit - Ge (FNAL)

09:05 Capabilities and design philosophy of a dual resolution inspection and repair system for SRF cavities - Bearden (MicroDynamics)

09:15 Surface Treatment of Niobium SRF Cavity by Plasma Etching - Upadhyay (ODU)

09:25 Progress in niobium coatings by PE-ALD - Prolier (ANL)

09:35 Discussion
09:50 Break
Break
09:50 - 10:10
10:10
10:10 - 11:20
Contributions

10:10 TE Cavity work - Liepe (Cornell)

10:20 Current Status of Dielectric Test Cavity and Wafer Test Cavity - Pogue (TAMU)

10:30 RF Critical Magnetic Field Measurements of Nb/(Insulator)/MgB2 Systems - Tajima (LANL)

10:40 Local measurements of the electron mean free path - Phillips (JLab)

10:50 Progress in near-field microwave microscopy of superconducting materials - Anlage (Maryland)

11:00 Discussion
11:20
11:20 - 12:10
Contributions

11:20 Plans for improving stockpile and cost of fine-grained niobium and chipless forming of ingot niobium into cavity subassemblies - Grimm (Niowave)

11:30 Direct and indirect process feedbacks for the fabrication of 1.3 GHz elliptical SRF resonators to improve production yields - Edinger (Pavac)

11:40 Dislocations in niobium - Baars (MSU)

12:00 Homogenization of Nb microstructures - Balachandran (TAMU)
12:10 Lunch
Lunch
12:10 - 13:30
13:30
13:30 - 14:00
Contributions

13:30 Cryotesting of niobium polycrystals - Bieler (MSU)

13:40 Fabrication of ILC cavities from axisymmetric RRR Nb tubes - Crooks (Black Laboratories)

13:50 Discussion
14:00
14:00 - 14:30
Contributions

14:00 Update on MgB2 deposition for SRF cavities - Xi (Temple)

14:10 Coupon and cavity studies of SRF thin films produced by energetic condensation - Krishnan (Alameda Appl. Sci.)

14:20 Discussion
14:30 Break
Break
14:30 - 15:00

15:00

15:00 - 17:00

17:00 Reception
Reception
17:00 - 18:00

18:00 Dinner
Dinner
18:00 - 20:00
Saturday, 20 February 2010

08:00 Continental Breakfast
Continental Breakfast
08:00 - 08:30
08:30 Opening remarks - Cooley (FNAL)
Opening remarks
- Cooley (FNAL)
08:30 - 08:40
08:40 Session 1 Summary
Session 1 Summary
08:40 - 09:00
What are the primary materials R&D drivers from cavities and programs?

09:00 Session 2 Summary
Session 2 Summary
09:00 - 09:20
What are small-scale experiments telling us about how to proceed (or not proceed)?

09:20 Session 3 Summary
Session 3 Summary
09:20 - 09:40
What is the ideal surface? What ideas or models are most useful and immediately applicable?

09:40 Session 4 Summary
Session 4 Summary
09:40 - 10:00
Can we obtain the target surface reliably and reproducibly? What is optimum, and what needs improvement?

10:00 Break
Break
10:00 - 10:10

10:10 Session 5 Summary
Session 5 Summary
10:10 - 10:30
What are the important differences in the final surface structures in relation to the observed properties? What changes need to be made, and what new things should be tried?

10:30 Session 6 Summary
Session 6 Summary
10:30 - 10:50
What techniques are useful and immediately applicable? Can property measurements bridge between coupons and cavities?

10:50 Session 7 Summary
Session 7 Summary
10:50 - 11:10
Do forming and welding produce downstream difficulties? What needs to be changes?

11:10 Session 8 Summary
Session 8 Summary
11:10 - 11:30
Can coating technologies provide a meaningful impact and in a reasonable time frame?

11:30 Final discussion
Final discussion
11:30 - 12:00

12:00 Box Lunch
Box Lunch
12:00 - 13:00