Name: TTC 2021, TESLA Technology Collaboration
Start: 2021-01-19T14:00:00+01:00
End: 2021-01-21T18:00:00+01:00
Location: Virtual Meeting

TTC 2021, TESLA Technology Collaboration

from Tuesday, 19 January 2021 (14:00) to Thursday, 21 January 2021 (18:00)

Monday, 18 January 2021
Tuesday, 19 January 2021

14:00 Please UPLOAD your presentations before the respective session start. If it does not work email it to TTC2021support@desy.de
Please UPLOAD your presentations before the respective session start. If it does not work email it to TTC2021support@desy.de
14:00 - 14:30
14:30
14:30 - 15:00
Contributions

14:30 Welcome - Hans Weise (MSL (Supraleitende Beschleuniger Technologie))

14:45 Introduction and update from last collaboration meeting - Hans Weise (MSL (Supraleitende Beschleuniger Technologie))
15:00 Cryomodule test
Cryomodule test
15:00 - 16:00
Contributions

15:00 Experience with SRF Gun Module operation and lessons learned for SRF CW ERL modules (15 + 5) - Axel Neumann (HZB)

15:20 SRF gun cryomodule testing at ANL (15 + 5) - Troy Petersen (Argonne National Lab)

15:40 RF Performance and experience of the 1st series spoke cryomodule for ESS (15+5) - Han Li (Uppsala)
Material Studies
Material Studies
15:00 - 16:00
Contributions

15:00 Grainboundary-Diffusion studies on Cavity Cut-Outs and Samples (12+3) - Arti Dangwal Pandey (DESY Hamburg)

15:15 Progress on modeling high-temperature nitrogen diffusion and nitride growth guided by SIMS, SEM, and AFM measurements (12+3) - Eric Lechner (JLAB)

15:30 First insight on Internal Friction measures on Nb samples to study the precipitates esponsible of HFQS (12+3) - Titziana Spina (FNAL)

15:45 First results from beta-NMR for SRF samples (12+3) - Edward Thoeng (TRIUMF)
16:00 Break
Break
16:00 - 16:20
16:20 Cryomodule test and heat load measurements
Cryomodule test and heat load measurements
16:20 - 18:00
Contributions

16:20 PIP-II Half-Wave Resonator Cryomodule Test Results (Pneumatic tuner, top-loading CM) (12+3) - Joe Ozelis (Fermilab)

16:35 Test results from PIP-II Single-Spoke Resonator 1 prototype cryomodule (Stepper+piezo tuner, end-loading CM) (12+3) - Alexander Sukhanov (Fermilab)

16:50 In situ dynamic heat load measurements of the SPIRAL 2 LINAC superconducting cavities (12+3) - Ghribi Adnan (GANIL)

17:05 XFEL heat load measurements (12+3) - Rajinikumar Ramalingam (DESY)

17:20 LCLS-II cryomodule heat load measurements at Fermilab + JLAB (10+10+5) - Elvin Harms (Fermilab) Michael Drury (Jefferson Lab)

17:45 Offline and online heat load measurements of FRIB cryomodules and performance after thermal cycling - Sang-Hoon Kim (FRIB)
Heat Treatments
Heat Treatments
16:20 - 18:00
Contributions

16:20 High-Q performance of SRF cavities by mid-T furnace baking at KEK (15+5) - Hayato Ito (KEK)

16:40 Experimental study of simplified mid-T furnace baking at IHEP (15+5) - Feisi He (IHEP Beijing)

17:00 High Q progess at PKU (15+5) - Jiankui Hao (PKU)

17:20 New results on N-doping applied to 5-cells low-beta 644 MHz cavities (15+5) - Kellen McGee (FNAL / MSU)

17:40 Origins and Implications of the F vs T Dip in Nb Cavities (15+5) - Daniel Bafia (FNAL)
18:30 ALPS tour
ALPS tour
18:30 - 19:30

EuXFEL tour
EuXFEL tour
18:30 - 19:30
Wednesday, 20 January 2021

13:00 AMTF tour
AMTF tour
13:00 - 14:00

FLASH tour
FLASH tour
13:00 - 14:00
14:30 Linac operation
Linac operation
14:30 - 16:00
Contributions

14:30 Operation/installation of QWR CMs at RIKEN (15+5) - Naruhiko Sakamoto (RIKEN Nishina Center)

14:50 Power coupler issues in CM operation from RIKEN (12+3) - Kazutaka Ozeki (RIKEN)

15:05 Lessons learned from FRIB linac SRF commissioning: field calibration, mitigation of field emission, resonance control (12+3) - John Popielarski (FRIB)

15:20 Cryomodule development at IMP-lessons learned from operation of C-ADS and recent design for HIAF project (15+5)) - Feng Bai (IMP)

15:40 Dark current in high-gradient SRF linac and the irradiation heating in superconducting magnets for beam focusing (15+5) - Akira Yamamoto (KEK/CERN) Nikolay Solyak (Fermilab)
Experimental Set-up
Experimental Set-up
14:30 - 16:00
Contributions

14:30 Studies of the cool-down dynamics around Tc using a magnetic flux lens (12+3) - Anton Ivanov (CERN)

14:45 Study of possible frequency dependence of small AC fields on magnetic flux trapping in Niobium (12+3) - Oliver Kugeler (Helmholtz Zentrum Berlin)

15:00 Dynamics of RF dissipation - High-speed temperature mapping (15+5) - Ryan Porter (Cornell)

15:20 A New Model for Q Slope in Nb Cavities and Its Application to Production Resonators for FRIB (15+5) - Kenji Saito (FRIB)

15:40 New results from TEM test cavities (15+5) - Philipp Kolb (TRIUMF)
16:00 Break
Break
16:00 - 16:20
16:20 Linac operation
Linac operation
16:20 - 18:00
Contributions

16:20 Experience with field emitters at EuXFEL (15+5) - Nick Walker (DESY)

16:40 Effects of thermal cycling and recent changes to the vacuum interlocks for C100 cryomodules (15+5) - Tom Powers (JLAB)

17:00 Experience in CBETA RF commissioning (15+5) - Nilanjan Banerjee (Cornell)

17:20 Status of ARIEL SRF e-Linac Cryomodules (15+5) tbc - Ma Yanyun (TRIUMF) Robert Laxdal (TRIUMF)

17:40 SNS operational experience (15+5) - John Mammosser (SNS)
New Materials
New Materials
16:20 - 18:00
Contributions

16:20 Development of Coating System and First Cavity Performance Test for High-Efficiency Nb3Sn Superconducting Cavity (15+5) - Kotaro Takahashi (KEK)

16:40 Recent progress of Nb3Sn thin film SRF at IMP (15+5) - Ziqin Yang (IMP)

17:00 Nb3Sn and V3Si as thin films on Cu toward SRF applications (15+5) - Stéphanie Fernandez (CERN)

17:20 Progresses on thin film deposition by ALD at IRFU/IJCLab (15+5) - Sarra Bira (IRFU/IJCLab)

17:40 ALD-Based NbTiN studies for SIS R&D (15+5) - Isabel Gonzalez (DESY)
Thursday, 21 January 2021
14:30
14:30 - 16:00
Contributions

14:30 New SRF infrastructures in China - Dong Wang (SINAP)

15:00 XFEL operational experience - Julien Branlard (DESY)

15:30 SRF challenges for the EIC project - Qiong Wu (BNL)
16:00 Break
Break
16:00 - 16:20
16:20
16:20 - 17:00
Contributions

16:20 WG1 Summary Report

16:40 WG2 Summary Report
17:00 Social Event
Social Event
17:00 - 18:00