Name: TTC Topical Workshop - RF Superconductivity: Pushing Cavity Performance Limits
Start: 2017-11-15T08:30:00-06:00
End: 2017-11-17T16:30:00-06:00
Location: Fermilab

TTC Topical Workshop - RF Superconductivity: Pushing Cavity Performance Limits

from Wednesday, 15 November 2017 (08:30) to Friday, 17 November 2017 (16:30)

Monday, 13 November 2017
Tuesday, 14 November 2017
Wednesday, 15 November 2017

08:30

08:30 - 09:15
Room: IARC Auditorium
09:15
09:15 - 12:50
Room: IARC Auditorium
Contributions

09:15 Frequency dependence of the BCS surface resistance at high field - Martina Martinello (Fermilab)

09:45 Non-equilibrium superconductivity in aluminum resonators - Pieter de Visser (SRON, Netherlands Institute for Space Research)

10:35 Nonequilibrium Superconductvity in Inhomogeneous Materials - James Sauls (Northwestern University)

11:05 Analysis of Mean Free Path and Field Dependent Surface Resistance - James Maniscalco (CLASSE, Cornell University)

11:35 Implication of the proximity effect on the surface resistance - John Zasadzinski (Illinois Institute of Technology)

12:05 Surface impedance and optimum surface resistance of a superconductor with imperfect surface - Takayuki Kubo (KEK/SOKENDAI)

12:35 General determination of BCS parameters using surface impedance and magnetization measurement - Akira Miyazaki (CERN)
12:50

12:50 - 14:00
Room: IARC Auditorium
14:00
14:00 - 17:35
Room: IARC Auditorium
Contributions

14:00 New insights on HFQS - Anna Grassellino (Fermilab)

14:30 Jlab results and perspective on HFQS removal mechanisms - Gianluigi Ciovati (Jefferson Lab)

15:00 A model for HFQS and innovative pathways towards higher gradients - Alexander Romanenko (Fermilab)

15:50 Nanosurface characterization of nitrogen treated samples - Arti Dangwal Pandey (DESY)

16:10 New insight on the N-infusion effect in Niobium - Yulia Trenikhina (Fermilab)

16:30 Prospective on ultimate gradient limitations in SRF cavities - Alex Gurevich (Old Dominion University)

16:50 Superheating field in impurity diffusion layer - Wave Ngampruetikorn (Northwestern University)

17:10 Theoretical calculations of maximum fields in SRF cavities - Danilo Liarte (Cornell University)
Thursday, 16 November 2017
08:30
08:30 - 12:30
Room: IARC Auditorium
Contributions

08:30 Introduction and flux expulsion measurements on fine grain cavities - Sam Posen (Fermilab)

08:55 Flux expulsion measurements in large grain cavities - Pashupati Dhakal (Jefferson Lab)

09:20 Variations in bulk flux trapping by MO imaging in Nb - Shreyas Balachandran (NHMFL)

09:45 Theoretical insights on pinning - Ivan Sadovski

10:05 Point pinning versus grain boundary pinning – physics and techniques - Zuhawn Sung (Fermilab)

10:45 Theoretical models of flux expulsion and dissipation - Mattia Checchin (FNAL/TD)

11:10 Flux losses due to weak collective pinning - Danilo Liarte (Cornell University)

11:35 Vortex dissipation in Nb/Cu films - Akira Miyazaki (CERN)

12:00 Flux dissipation in Nb3Sn Films - Ryan Porter (Cornell University)
12:30 Lunch
Lunch
12:30 - 13:45
Room: IARC Auditorium
13:45
13:45 - 17:55
Room: IARC Auditorium
Contributions

13:45 Session introduction - Mattia Checchin (FNAL/TD)

13:50 Deposition of NbN and NbTiN thin films - Sergio Calatroni (CERN)

14:20 Thin film deposition of Nb3Sn on copper - Katsiaryna Ilyina-Brunner (CERN)

14:50 Nb3Sn SRF films fabricated via vapor diffusion - Sam Posen (Fermilab)

15:35 Growth of MgB2 films on Cu for SRF cavities - Wenura Withanage (Department of Physics, Temple University, Philadelphia, PA 19122)

16:05 STM studies of MgB2, Fe-BS and Cuprates - Maria Iavarone

16:35 SRF materials deposition by ALD: state-of-the-art and new possibilities - Thomas proslier (commissariat de l'énergie atomique)

17:05 Applicability of ECR and HiPIMS techniques for the deposition of innovative SRF materials - Anne-Marie Valente-Feliciano (JLab)

17:35 High Tc coated Cu SRF cavity materials - Michael Pellin (ANL)
19:30

19:30 - 21:30
Room: Wildwood Restaurant
Friday, 17 November 2017

08:15

08:15 - 09:30
Room: TD - ICB, IB1, IB4, MP9
09:30
09:30 - 11:20
Room: IARC Auditorium
Contributions

09:30 Understanding the low field Q slope in SRF cavities as a first step towards quantum regime - Alexander Romanenko (Fermilab)

10:00 Available data on temperature and rf field amplitude dependence of the quality factor of 2D and 3D resonators in quantum regime - David Schuster (U.Chicago)

10:30 Two-level systems as a key source of microwave dissipation in quantum regime - R. McDermott (University of Wisconsin - Madison)
11:20

11:20 - 13:00
Room: IARC Auditorium