TTC 2020

4 Feb 2020, 08:00 → 7 Feb 2020, 17:00 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

Frank Gerigk (CERN), Sergio Calatroni (CERN), Walter Venturini Delsolaro (CERN)

Newsflash: in view of the evolving situation with the novel coronavirus outbreak please find the latest CERN recommendations along with further links on this topic here: https://home.cern/news/official-news/cern/coronavirus-recommendations  

See also the recommendations, which were issued for UN staff members: https://hr.un.org/page/novel-coronavirus-2019-ncov

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Introduction

The mission of the TESLA Technology Collaboration is to advance SCRF technology R & D and related accelerator studies across the broad diversity of scientific applications, and to keep open and provide a bridge for communication and sharing of ideas, developments, and testing across associated projects.
To this end the Collaboration supports and encourages free and open exchange of scientific and technical knowledge, expertise, engineering designs, and equipment.
You are welcome to the TTC meeting hosted by CERN.

General time table

 

Location of rooms

lunch is not organised but can be taken at the CERN restaurant

 

Booking form TTC Workshop.docx

Conference-photo.jpeg

Edelweiss- Workshop dinner.pdf

map.png

TTC 2020 poster.pdf

VirusPrevention-CERN.pdf

VirusPrevention-CERN.pptx

Tuesday 4 February

08:15 → 09:00 On-site Registration

09:00 → 10:30 Plenary: Welcome, Plenary talk 1, Plenary talk 2

Welcome, Plenary talk 1, Plenary talk 2

Conveners: Frank Gerigk (CERN), Robert Edward Laxdal

09:00 CERN welcome and logistics

Speakers: Frank Gerigk (CERN), Sergio Calatroni (CERN)

Sergio-TTC_visit_intro.pdf

Sergio-TTC_visit_intro.pptx

TTC2020-Welcome-FGerigk.pdf

09:15 Introduction and update from last collaboration meeting

Speaker: Hans Weise (DESY)

TTC Intro HW.pdf

TTC Intro HW.PPTX

09:30 CERN overview and SRF activities

Speaker: Frank Gerigk (CERN)

TTC2020-SRF-at-CERN-FGerigk.pdf

10:00 High-Q/High-G TTC task force report

Speaker: Martina Martinello (Fermilab - IIT)

HighQ HighG report TTC 2020_MM.pptx

10:30 → 11:00 Coffee Break

11:00 → 12:30 Working Group Session: WG1 _Low/Mid T Bakes + N-treatments

Conveners: Ari Palczewski (JLAB), Dr Kensei Umemori (KEK), Marc Wenskat (Deutsches Elektronen-Synchrotron DESY)

11:00 New results of KEK infusion and mid-T bake

Speaker: Kensei Umemori (KEK)

KEK_high-Q_high-G_umemori.pdf

KEK_high-Q_high-G_umemori.pptx

11:15 Update on insitu mid-T bake

Speaker: Sam Posen (FNAL)

TTC2020_midT_posen_v2.pdf

TTC2020_midT_posen_v2.pptx

11:30 Recent SRF cavity treatment R&D @ DESY

Speaker: Lea Steder (DESY)

TTC_2020_CERN_steder.pdf

11:45 High Q&G activity at IHEP

Speaker: Chao Dong (IHEP)

2020TTC High Q&G activity at IHEP.pdf

2020TTC High Q&G activity at IHEP.pptx

12:00 Status of infusion studies at IJCLab/CEA-Saclay

Speaker: David Longuevergne (IPNO)

TTC_infusion_Longuevergne.pdf

TTC_infusion_Longuevergne.pptx

12:15 Status of infusion studies at JLab

Speaker: Pashupati Dhakal (Jefferson Lab)

TTC_2020_DHAKAL.pdf

TTC_2020_DHAKAL.pptx

11:00 → 12:30 Working Group Session: WG2_Couplers and Auxiliaries

Conveners: Eric Montesinos (CERN), Naruhiko Sakamoto (RIKEN), Sang Hoon Kim (FRIB)

11:00 Fundamental studies for power coupler in KEK (10'+8')

Abstract:
KEK is concentrating on studies of copper plating and ceramic from 2016. Recently, in study of copper plating, it became clear that copper-sulfate is much better than copper-pyrophosphate by analysis of RRR and grain size for each. On the other hand, KEK constructed measurement system of secondary electron emission for ceramic, and have been measured many samples provided from five vendors including TiN and Cr2O3 coating. In this talk, these results will be presented, and discussed.

Provocative topic:
Copper plating by sulfate and pyrophosphate, secondary electron emission of ceramic incl. coating

Speaker: Yasuchika Yamamoto (KEK)

Fundamental_studies_for_power_coupler_in_KEK_04Feb2020.pdf

Fundamental_studies_for_power_coupler_in_KEK_04Feb2020.pdf

Fundamental_studies_for_power_coupler_in_KEK_04Feb2020.pptx

11:18 R&D Toward a 500 kW CW High Power Coupler with Variable Qext (10'+8')

Abstract:
The SRF cavities for the electron storage ring of an Electron-Ion Collider (EIC) to be built at BNL require CW high power couplers with variable Qext. The approach taken to develop this coupler was to leverage an existing 500 kW CW fixed coupler design, and implement the coupling adjustment by means of a waveguide tuner section adjacent to the coupler. This talk will briefly present the R&D approach and progress to date including design choices, fabrication and results of the initial high power testing of the couplers which were recently completed, and plans of high power couplers for BNL EIC applications.

Provocative Topics:
High power coupler adjustment via waveguide tuner with a fixed coupler; challenging performance requirements for the BNL EIC electron storage ring SRF system; high power test results with lessons learned and plan moving forward.

Speaker: Wencan Xu

R&D Toward a 500 kW CW High Power Coupler with Variable Qext_final.pdf

R&D Toward a 500 kW CW High Power Coupler with Variable Qext_final.pptx

11:36 Qext studies for the 1.5 GHz BESSY VSR couplers (10'+8')

Abstract:
The 1.5 GHz couplers for the high-current CW variable pulse-length demonstrator in BESSY II, are now out in the process of being manufactured. These couplers are designed to provide variable coupling, with the initial design brief that their Qext range was from 6x106 to 6x107. Through the process of design development it was found that a full order of magnitude range could not be reached. In this talk, the reason behind the reduced range is discussed and studies are presented detailing how the final coupling range was chosen. Since the couplers do not exist on their own but as part of a larger system, the external effects on the Qext as a result of mechanical constraints in the module will also be presented, to show how the full system is interlinked.

Provocative topics:
That is an interesting term. Essentially, how mechanical constraints from the overall SRF system, have more effect on the design than the RF, however I am not sure whether that is provocative or new to anyone who designs couplers.

Speaker: Emmy Sharples

EmmysharplesTTC2020.pdf

EmmysharplesTTC2020.pptx

11:54 Our experiences and troubles on FPCs for RIKEN QWR (10'+8')

Abstract:
In RIKEN, ten QWRs and ten FPCs were produced.
The rinsings and RF processes for ten FPCs seemed to have finished without any trouble.
Three CMs were assembled and installed on the beam line.
After about two months of evacuation of CMs, a leakage from vacuum window broke out at one of the FPCs.
Because a basal treatment is difficult, we evacuate the FPC from air side of the window to perform excitation test of QWRs.
The effects of leakage on other QWRs in same CM are being examined.
A couse of leakage is unspecified for now.

Speaker: Kazutaka Ozeki (RIKEN)

TTC2020ozeki.pdf

12:12 Special design considerations of high power input couplers for TEM-type superconducting cavities (10'+8')

Abstract:
High power input couplers of TEM-type superconducting cavities (QWR, HWR, Spoke) usually locate at the cavity body instead of beam pipe, which requests special design considerations in addition to the conventional design criteria. Firstly, the ceramic window may be damaged by field emission (FE) induced electrons. Thus it’s important to ensure no FE electrons can arrive at the ceramic surface by either optimizing the window position or blocking the electrons with specially designed shielding. Secondly, the cavity field will leak into the coupler and cause excessive heating, which may result in substantial dynamic heat load, even cavity quench. Therefore dedicated rf-thermal simulation should be done to reduce the filed leakage by optimizing the coupler position and the height of the coupler port. In addition, compact design to realize clean assembly and to minimize the contamination will be discussed.

Speaker: Tongming Huang (IHEP)

Special design considerations of high power input couplers for TEM-type superconducting cavities_with voiceover.pdf

Special design considerations of high power input couplers for TEM-type superconducting cavities_with voiceover.pptx

12:30 → 14:00 Lunch

14:00 → 15:30 Working Group Session: WG1_Low/Mid T Bakes + N-treatments

Conveners: Ari Palczewski (Thomas Jefferson National Accelerator Facility), Kensei Umemori (KEK), Marc Wenskat (Deutsches Elektronen-Synchrotron DESY)

14:00 Progress in N doping at FNAL – new developments in higher gradients insights

Speaker: Daniel Bafia (Fermi National Accelerator Laboratory)

Bafia-TTC_HigherGradientInsights.pdf

Bafia-TTC_HigherGradientInsights.pptx

14:18 LCLS-II investigation of failed LCLS-II HE prototype cavities EP analysis

Speaker: Dr Mattia Checchin (FNAL)

TTC_2020_CERN.pptx

14:36 Test results from the TRIUMF multi-mode coaxial resonators

Speaker: Philipp Kolb (TRIUMF)

PhilippKolb_TRIUMF_MultiModeTestResults.pptx

14:54 New low-T sample studies highlighting the important role of oxygen diffusion

Speaker: Alexander Romanenko (Fermilab)

Romanenko_TTC2020.pdf

Romanenko_TTC2020.pptx

15:18 Sample Survey - Presentation

TTC 2020 Small Sample Survey with embeded spreadsheet.pdf

TTC 2020 Small Sample Survey with embeded spreadsheet.pptx

14:00 → 15:30 Working Group Session: WG2_Couplers and Auxiliaries

Conveners: Eric Montesinos (CERN), Naruhiko Sakamoto (RIKEN), Sang Hoon Kim (FRIB)

14:00 Update on FPC progress at DESY (10'+8')

ABSTRACT

A Fundamental Power Coupler (FPC) is one of the key subsystems of the SRF accelerator and does need to be addressed in same way, as the SRF cavities are. Currently most of the FPCs for the SRF cavities at DESY are installed in the Eu-XFEL linac (~800), but this is not the only application. The FLASH linac will undergo the update soon
and CW operation of an SRF accelerator is under study. We plan also a refresh of our SRF testing facility with a new FPC test-stand.
All these topics will be presented in short and discussed.

Provocative topics:
1. CW module test - how far can a standart E-XFEL module be used with CW operation - limits/problems
2. Coupler test for FPC intended for CW operation - is it needed ? lower voltages with higher DF...

Speaker: Denis Kostin (DESY)

TTC2020_DKostin.pptx

14:18 Experience with FPCs for the LCLS-II project at JLAB (10'+8')

Abstract:
The LCLS II project make used of use of state of the art superconducting cryo-modules RF powered in CW mode by dedicated TTF3 style FPCs. The talk will provide details related with LCLS-II cryo-module production experience at JLAB using this type of couplers.

Provocative topic:
The modified TTF3 is a complex coupler, I wished it was simpler. Will this coupler demonstrate similar performances as we had on power couplers sustaining operation on LEP, LHC or SNS machines?

Speaker: Mircea Stirbet (Jefferson Laboratory)

MStirbet Experience with FPCs for LCLS II project at JLAB.pdf

MStirbet Experience with FPCs for LCLS II project at JLAB.pptx

14:36 Test bench conditioning of the ESS couplers for elliptical cavities (10'+8')

Abstract:
After a short presentation of the architecture and features of the ESS couplers used with elliptical cavities, we will present how we perform the conditioning of the couplers at CEA Saclay and the different diagnostic elements used to check the correct working of the couplers. We will discuss on the consequences of a “bad” TiN coating on the coupler performances during the conditioning.

Provocative topics:
Do we install too many diagnostic elements on the couplers during the conditioning?

Speaker: Christian Arcambal (CEA)

TTC_meeting_2020_arcambal.pdf

TTC_meeting_2020_arcambal.pptx

14:54 High power testing of ESS FPCs on the elliptical cavities cryomodules (10'+8')

Abstract:
We discuss the behavior of the 1.2 MW power couplers on the ESS medium beta elliptical cavities cryomodule during high power test in the Saclay test bunker. We go through three test conditions, room temperature, cold with detuned cavity and with the nominal case of tuned cavities at 2 Kelvin.

Provocative topic:
Do we condition FPC enough?

Speaker: Guillaume Devanz (CEA)

TTC2020_WGtalk_GD.pdf

15:12 Technical Issues on RF power coupler for QWR and HWR cavity in RISP (10' + 8')

Abstract
RF power couplers for QWR and HWR cavity are under the mass production in RISP. We will present the technical issues which occurred during the preparation and test of the RF power couplers. The contamination of the coupler is occurred after the ultra-sonic cleaning (USC) with the DI-water. The USC procedure of the coupler is modified as replacing the DI-water to the ethanol. The material for metallization of ceramic window, which is AgCu alloy (Ag-50% Cu-50%), could be oxidized by the DI-water. And the surface of the outer conductor is contaminated after the USC procedure. Substitute the ethanol for the DI-water, the contamination of ceramic window is not observed after the USC procedure. Also, the decay time measured from the RF power coupler has non-linearity when the RF power switched off. This non-linearity of decay time is only observed in horizontal test. The non-linearity of decay time makes the decay time longer than the linear decay time, and the loaded Q is also increased. The linear part of the decay time, which is a few hundreds of micro-second after the RF power switched off, is used for calculation of the loaded Q.

Provocative topics:
The high pressure rinse procedure is necessary for clean room preparation of RF power coupler?
The reason of the non-linearity in the measured decay time

Speaker: Sangbeen Lee (Institute for Basic Science)

TTC2020_WG2_slee_ver1_200202.pdf

TTC2020_WG2_slee_ver1_200202.pptx

15:30 → 16:00 Coffee Break

16:00 → 17:30 Working Group Session: WG1_Sample Studies

Conveners: Ari Palczewski (Thomas Jefferson National Accelerator Facility), Kensei Umemori (KEK), Marc Wenskat (Deutsches Elektronen-Synchrotron DESY)

16:00 Sample Survey - Discussion

16:18 New insights on the SRF Nb cavities performance from spectroscopic data. An XPS study

Speaker: Arely Cano (FNAL)

ACano-TTC2020.pdf

ACano-TTC2020.pptx

16:36 In-Situ EXAFS Investigation of N2 treatment of Nb

Speaker: Dirk Lützenkirchen-Hecht (U Wuppertal)

TTC_DLH.pdf

TTC_DLH.pptx

16:54 The challenges of fully calibrated SIMS measurements using ion implant standards

Speaker: Jonny Angle (Jlab/Virginia Tech)

Challenges of SIMS calibration and quatification for N-Doped Niobium.pptx

17:12 Sample Studies on Nitrogen- and Heat-Treatments of Niobium

Speaker: Marc Wenskat (Deutsches Elektronen-Synchrotron DESY)

Wenskat_TTC.pdf

Wenskat_TTC.pptx

16:00 → 17:30 Working Group Session: WG2_Couplers and Auxiliaries

Conveners: Eric Montesinos (CERN), Naruhiko Sakamoto (RIKEN), Sang Hoon Kim (FRIB)

16:00 R&D Toward High Power Warm SiC Beam Line HOM Absorbers (10' + 8')

Abstract:
The SRF cavities for the electron storage ring of an Electron-Ion Collider (EIC) to be built at BNL are planned to operate continuous wave (CW) with beam currents ranging from 0.26 to 2.5A and energies from 5 to 18 GeV. Strong High Order Mode (HOM) damping is necessary to maintain beam stability. Our approach is to use Silicone Carbide (SiC) as a lossy dielectric located in the room-temperature beamlines adjacent to the SRF cavities to absorb the HOM power. Simulations predict up to 80 kW of CW HOM power per cavity during operation. This talk will briefly present plans and analysis to extract the HOM power from the SiC material into a water-cooled section of beampipe along with progress to date on the prototype fabrication of the Beam Line Absorbers (BLAs). Plans for low power and high power testing will also be presented.

Provocative Topics:
Beampipe vs waveguide or coaxial HOM coupling, very high HOM power absorbers, SRF cavity contamination from SiC particulate.

Speaker: Doug Holmes (BNL)

R&D Toward High Power Warm SiC Beam Line HOM Absorbers.pdf

R&D Toward High Power Warm SiC Beam Line HOM Absorbers.pptx

16:18 HOM couplers for crab cavities and challenges (10'+8')

Abstract:
Two types of crab cavities will be installed into the LHC as part of the HL-LHC project. To mitigate the problems of large beam-induced heat-loads and instabilities, the higher order modes in both cavities are damped by coaxial couplers. This presentation will detail the HOM damping mechanisms chosen, specifically looking into broad-band damping and limitations with dynamic heat loads. Finally, design constraints arising from manufacture and transport are presented with key points for discussion.

Provocative topics:
High power SC HOM couplers, gasket heat loads, transport of HOM couplers, manufacture of HOM couplers.

Speaker: James Alexander Mitchell (CERN)

TTC.pdf

TTC.pdf

TTC.pptx

TTC.pptx

16:36 Newest Piezo-Actuators for High Dynamic Rate Operation (10'+8')

Abstract:
To compensate for SRF cavity Lorentz Force Detuning fast/piezo actuator must operate at high amplitude and high dynamic rate. The piezo-actuator when operated inside insulate vacuum environment with pulses of large amplitude could be overheated quickly. Uncontrollable increase of the piezo actuator temperature could lead to the failure of the actuator, as reported in many papers.
Removing heat from piezo-ceramic when it is operated inside insulate vacuum environment complicated task that newer addressed previously. FNAL and PI team developed newest high dynamic rate (HDR) piezo-ceramic actuator that has unique way to remove heat from piezo.
Design of the newest actuator-actuators and preliminary test results will be presented.
This new HDR piezo-actuators could significantly increase reliability of the fast tuners for compensation of Lorentz Force detuning in the SRF Linacs that operated in RF-pulse mode.

Provocative topic:
What is reliability/ longevity of the piezo-tuners that deployed in recent SRF linacs?
What are the reasons that practically every modern SRF accelerator system that built recently has piezo-tuners?
But not many facility is running piezo-actuators 24/7 ?
Low reliability of the piezo? And the risk that piezo-stack could fail prevent it from
actively operate fast/piezo tuners for High Dynamic Rate operation?

Speaker: Yuriy Pischalnikov (FERMILAB)

TTC2020_Pischalnikov_New HDR piezo.pdf

16:54 Compact tuner designed to minimize the intervals of QWRs for RIKEN heavy-ion linac (10'+8')

Abstract:
The superconducting booster linac at RIKEN (SRILAC) has ten 73-MHz quarter-wavelength resonators (QWRs) that are contained in three cryomodules (CMs).
Focusing element of quadrupole magnets at room temperature were installed between CMs. In order to obtain optimum beam dynamics, an intervals of QWRs was set as small as 110 mm. Frequency tuning during cold operation is performed by compressing the beam port of the cavity and decreasing the length of each beam gap using a dynamic tuner. The tuning range of the cavity itself is from 0 to -14 kHz. The tuner is used to tune by a few kHz at the beginning of the cavity excitation, and by a few Hz for a long term operation in order to compensate the frequency change by helium pressure.
Since the intervals of QWRs is small, a compact design of the dynamic tuner was adopted. The support plates were welded to the helium jacket, and surrounding wires were attached.
A cavity frequency is decreased by tightening the wires, which is driven by a stepping motor and gears (ratio is 1:64).
In a cooling test at 4K, each cavity was successfully tuned to the design frequency by the tuner, in which the required frequency change was 3 kHz to 8 kHz depending on the cavity.
There is a hysteresis of around 10 Hz, which is caused by a backlash of the mechanical system.
The sensitivity of helium pressure was estimated to be df/dp = -1.91 Hz/hPa by a 3D EM calculation. In a short term (in periods of 2--3 minutes), helium pressure is stable by around 4 hPa (8 Hz) against the bandwidth of 50 Hz. Long term stability test (1 day) is underway.
If the frequency is not stable enough, an automatic frequency tuning will be necessary.
The tuner design and test results with cold cavities will be presented.

Provocative topics:
Compact tuner for QWR, minimal interval of QWR
Performance test of tuner

Speaker: Kenji Suda (RIKEN)

TTC2020-ksuda-20200204.pdf

TTC2020-ksuda-20200204.pdf

TTC2020-WG2-20200204_ksuda_update.pdf

17:12 Resonance control with pneumatic slow frequency tuners for FRIB > half-wave resonators (10' + 8')

Provocative topics:
Mechanical modes integrated with a pneumatic tuner, magnetic hygiene with a pneumatic tuner, use of 'industrial-class' proportional solenoid valves for large-scale SRF accelerators

Speakers: John Popielarski (FRIB), Sang Hoon Kim (FRIB)

Kim_TTC2020_Pneumatic_tuners_for_FRIB_HWR.pdf

17:30 → 18:00 Break

18:00 → 19:00 Collaboration Board: meeting

Wednesday 5 February

09:00 → 10:30 Plenary: Plenary talk 3, Plenary talk 4, Plenary talk 5

Welcome, Plenary talk 1, Plenary talk 2

Convener: Wolf-Dietrich Moeller (DESY)

09:00 Statistical Analyses of Nitrogen-Doped Cavity Production for LCLS-II Cavities

Speaker: Dan Gonnella (SLAC)

LCLS2_Stats_Gonnella.pptx

09:30 Spiral 2 SRF commissioning

Speaker: Robin Ferdinand (GANIL)

2020 02 TTC meeting SPIRAL2 Status v2.pptx

10:00 Workshop Report from ERL2019 at HZB

Speaker: Peter Mcintosh

ERL19 Summary - McIntosh.pdf

ERL19 Summary - McIntosh.pptx

10:30 → 11:00 Coffee Break

11:00 → 12:30 Working Group Session: WG1_Flux Expulsion

Conveners: Ari Palczewski (Thomas Jefferson National Accelerator Facility), Kensei Umemori (KEK), Marc Wenskat (Deutsches Elektronen-Synchrotron DESY)

11:00 Flux expulsion measurement with a flux lens

Speaker: Anton Evgeniev Ivanov (CERN)

Flux Expulsion Measurement with Flux Lens .pdf

11:18 Metallurgical approach to addressing the issue of flux-trapping in Nb cavities and the variability found when using Nb sheet from different sources

Speaker: Shreyas Balachandran (NATIONAL HIGH MAGNETIC FIELD LAB)

Shreyas Balachandran-TTC talk 2020- Final.pdf

Shreyas Balachandran-TTC talk 2020- Final.pptx

11:36 Comparison for the vortex penetration and dynamics in Nb, Nb/N and NbTi plates

Speakers: Chao Dong (IHEP), Haihu Wen (Nanjing U)

Votex penetration of some superconductor....pdf

Votex penetration of some superconductor....pptx

11:54 Flux expulsion on small samples for LCLS-II HE

Speaker: Paulina Kulyavtsev

TTC 2020 Kulyavtsev_Paulina.pdf

TTC 2020 Kulyavtsev_Paulina.pptx

12:12 Material studies on High-T Doping

Speaker: Marton Major (TUDA)

MMajor-TTC-08.pptx

MMajor-TTC-08-print.pdf

11:00 → 12:30 Working Group Session: WG2_Couplers and Auxiliaries

Conveners: Eric Montesinos (CERN), Naruhiko Sakamoto (RIKEN), Sang Hoon Kim (FRIB)

11:00 Power Couplers - Technology, manufacturing, and four ways to procure for half the price (15' + 8')

Abstract:
Power couplers provide the vacuum and thermal interface between the superconducting cavity and the room temperature waveguide components, and transmit microwave power. The production of Power Couplers require a unique set of manufacturing processes. Procurement costs can vary widely for a number of reasons. This paper will show the critical technologies required and the breakdown of major components of cost.

Provocative topic:
Four methods to procure couplers for half the price will be discussed, along with recommendations for cost savings from a manufacturers perspective.

Speaker: Steve Einarson (CPII)

Power Coupler Presentation-R1 CERN 1-17-20.pdf

Power Coupler Presentation-R1 CERN 1-17-20.pptx

11:23 THALES experience for EU-XFEL project – From the (non)pre-industrialization phase to mass production (15'+8')

Abstract:
In July 2010, THALES Electron Devices (now THALES Avionics France SAS) in consortium with Research Instrument has be awarded by CNRS/IN2P3 for the mass production of 670 RF couplers at 1.3GHz for the EU-XFEL project in Hamburg. This positive outcome has been the result of a long journey started in 2004 by several steps of consultation and discussions between the laboratories acting as design authorities / in-kind contributors to the project and the Industry.

Provocative topic:
In this talk, we will summarize the pre-tendering discussions and the aborted industrialization phase seen from THALES stand point and the consequences during project successful execution from 2010 till 2015.

Speaker: Stephane Bethuys (THALES)

WWFPC #6 meeting - THALES (05.02.2020).pdf

11:46 Development of fundamental power couplers for several years at CETD (15' + 8')

Abstract:
CETD (former company name: TETD) has developed and manufactured FPCs since more than 30 years ago in collaboration with KEK or other research institutes.
Recent years we succeeded in contract with overseas customers and we made efforts to solve various problems in order to satisfy customers requirements.
In this talk, our products developed in last few years will be introduced and some proposals and requests from the supply side will be presented.

Speaker: Masao Irikura (CANON)

TTC2020_CETD20200205.pdf

12:09 Remarks on the industrial production of FPC (15' + 8')

Abstract:
The talk will address the positive and negative experiences that RI gained during the production of FPC in large scale series (E-XFEL, LCLS-II) and small scale projects. The most critical processes and head-aches will be reflected from “behind the scenes”.
The specifications do often cut the edge of achievable copper plating, TIN deposition and mechanical tolerances in a serial production and sometimes seem to be overshooting. The current development from pulsed to CW machines does raise the question, if the TTF-III coupler as a design baseline is still up to date.

Provocative topics:
Overtight copper plating specifications
TIN deposition control (nanometers!)
Specified mechanical tolerances
Is the TTF-III coupler still up to date?

Speaker: Daniel Trompetter (RI Research Instruments GmbH)

TTC2020_FPC-at-RI_DTR.pdf

12:30 → 14:00 Lunch

14:00 → 15:30 Working Group Session: WG3_Coating techniques

Conveners: Guillaume Jonathan Rosaz (CERN), Teng Tan (IMP), Tobias Junginger (University of Victoria/TRIUMF)

14:00 Development of coating system for the Wide Open Waveguide (WOW) Crab Cavity (10'+8')

Speaker: Fabio Avino (CERN)

2020-02-04-07_TTC_FINAL.pdf

2020-02-04-07_TTC_FINAL.pptx

14:18 Progresses on ECR plasma deposited Nb thin films (10'+8')

Speaker: Anne-Marie Valente-Feliciano (Jefferson Lab)

TTCCERN2020-ECNbCuFilms-AMVF.pdf

TTCCERN2020-ECNbCuFilms-AMVF.pptx

14:36 Legnaro Thick films (10'+8')

Speaker: Cristian Pira (LNL-INFN)

Pira - Legnaro_Thick_Films.pdf

14:54 Test results of re-built LHC spare cavities (10'+8')

Speaker: Mr Franck Peauger (CERN)

2020_02_03-TTC-LHC-cavities-Peauger.pdf

2020_02_03-TTC-LHC-cavities-Peauger.pptx

15:12 ARIES WP15 progresses (10'+8')

Speaker: Oliver Julius Kugeler

TTC2020 ARIES WP15 Kugeler.pdf

TTC2020 ARIES WP15 Kugeler.pptx

14:00 → 15:30 Working Group Session: WG4_New Fabrication Methods (1 /2)

Conveners: Hiroshi Sakai (KEK), Stephane Berry (CEA), Tug Arkan (FNAL)

14:00 Seamless cavities via electrodeposition

Speaker: Lucia Lain Amador (CERN)

TTC_meeting_Lucia_Lain.pptx

14:15 Developments of Niobium atomize powder for superconducting

Speaker: Takeshi Dohmae (KEK)

Atomized Nb powder for superconducting.pdf

14:30 Metal Additive Manufacturing at CERN in general and SRF Niobium

Speaker: Romain Gerard

TTC_-_AMCERN_V4.pptx

14:45 Electron beam welding for cavity production, collaboration with KEK on internal welding of 1.3GHz type cavities

Speaker: Peter Oving (TECHMETA Company)

200205-Presentation_CERN-TechMeta-KEK-for 1.3GHz-SCRF.pdf

15:00 Novel Technologies applied to SRF (cavity) fabrication

Speaker: Said Atieh (CERN)

Novel_Technologies_Applied_to_SRF_Fabrication_at_CERN_TTC_2020_vf.pptx

15:15 Fabrication Experience with Balloon SSR Cavity at TRIUMF

Speaker: Robert Edward Laxdal

srf-balloon_talk.pdf

srf-balloon_talk.pptx

15:30 → 16:00 Coffee Break

16:00 → 17:30 Working Group Session: WG3_Alternative Materials/Structures to Nb films

Conveners: Guillaume Jonathan Rosaz (CERN), Teng Tan (IMP), Tobias Junginger (University of Victoria/TRIUMF)

16:00 Recent SIS layer results (10'+8')

Speaker: Claire Antoine (CEA)

Recent results on SIS layers (Characterization by Magnetometry)

16:18 Overview Multilayers RF results (10'+8')

Speaker: Sebastian Keckert (Helmholtz-Zentrum Berlin)

2020-02-05_TTC_Keckert.pdf

2020-02-05_TTC_Keckert.pptx

16:36 Nb3Sn/V3Si results (10'+8')

Speaker: Stephanie Fernandez (CERN)

TTC-february2020.pptx

16:54 Two-stage coating of MgB2 system (10'+8')

Speaker: Hiroshi Sakai (KEK)

MgB2_LANL_KEK_work_TTC_meeting@CERN_05FEB2020_r4.pdf

MgB2_LANL_KEK_work_TTC_meeting@CERN_05FEB2020_r4.pptx

17:12 CVD Thick Nb film and cavity coating (10'+8')

Speaker: Zeming Sun (Cornell)

Zeming Sun_TCC meeting slides_v5.pdf

16:00 → 17:30 Working Group Session: WG4_New Fabrication Methods (2 /2) and Alternative Cooling Techniques

Conveners: Hiroshi Sakai (KEK), Stéphane BERRY (CEA-Saclay), Tug Arkan (FNAL)

16:00 RFD crab cavities manufacturing experience at CERN

Speaker: Marco Garlasche (CERN)

TTC2020_MGarlasche_RFD_Crab_Cavities_Manufacturing 05022020.pptx

16:15 Methods and results of laser welding of niobium

Speaker: Kyle Branigan (II-IV)

Niobium Welding CERN TTC 20200131.pdf

Niobium Welding CERN TTC.pptx

16:30 Stand-Alone Cryocooler-Based Module for the ATLAS Multi-User Upgrade

Speaker: Michael Kelly (ANL)

Kelly_TTC_012620_2 (1).pdf

16:45 An effective thermal link for cooling cryo-magnetic systems : The Pulsating Heat Pipe (PHP)

Speaker: Dr Bertrand Baudouy (CEA Paris-Saclay)

TTC_CERN_5 février2020.pdf

17:00 Developing conduction-cooled SRF cavities and first test results

Speaker: Dr Ram Dhuley (Fermi National Accelerator Laboratory)

TTC2020 - Ram Dhuley.pptx

17:15 Results from a multi-metallic conduction-cooled SRF single-cell cavity

Speaker: Robert Alan Rimmer

Rimmer_TTC2020.pdf

Rimmer_TTC2020.pptx

17:30 → 18:00 Break

18:00 → 19:00 Technical Board: meeting

Thursday 6 February

09:00 → 10:30 Working Group Session: WG3_Progress on Nb3Sn towards accelerator

Conveners: Guillaume Jonathan Rosaz (CERN), Teng Tan (IMP), Tobias Junginger (University of Victoria/TRIUMF)

09:00 Nb3Sn progressess from Cornell (10'+8')

Speaker: Ryan Porter (CLASSE)

TTC2020_CornellNb3Sn_Porter.pptx

09:18 Nb3Sn coated 1.5 GHz multi-cell cavities and perspectives for beam acceleration tests (10'+8')

Speaker: Grigory Eremeev (FNAL)

TTC_2020_presentation_Nb3Sn_grigory_30jan2020.pdf

TTC_2020_presentation_Nb3Sn_grigory_30jan2020.pdf

TTC_2020_presentation_Nb3Sn_grigory_30jan2020.pptx

09:36 Advances in Nb3Sn coating at Fermilab including recent world-record performance cavity results (10'+8')

Speaker: Mr Sam Posen (FNAL)

TTC2020_Nb3Sn_posen_v2.pdf

TTC2020_Nb3Sn_posen_v2.pptx

09:54 Nb3Sn thin film synthesized via bronze route (10'+8')

Speaker: Akihiro Kikuchi (National Institute for Materials Science)

TTC meeting 2020_Akihiro Kikuchi.pdf

TTC meeting 2020_Akihiro Kikuchi.pptx

10:12 Nb3Sn from the lab to the machine (10'+8')

Speaker: Rama Calaga (CERN)

TTCWorkshop_Calaga.pdf

TTCWorkshop_Calaga.pptx

09:00 → 10:30 Working Group Session: WG4_Non standard concepts

Conveners: Hiroshi Sakai (KEK), Stéphane BERRY (CEA-Saclay), Tug Arkan (FNAL)

09:00 Measurement results of moving particles during STF cryomodule assembly under slow pumping/venting in KEK (12/20)

Speaker: Hiroshi Sakai (KEK)

TTC_slowpump_kek_sakai_200206_final.pdf

TTC_slowpump_kek_sakai_200206_final.pptx

09:15 IFMIF/QST on dust particle measurements by using "a vacuum particle counter"

Speaker: Takashi Ebisawa (QST)

TTC meeting slide _ebi_fin.pdf

TTC meeting slide _ebi_fin.pptx

09:30 Cryomodule design, assembly and installation utilizing “KOACH” system

Speaker: Nari Yamada (RIKEN)

TTC2020_yamada.pdf

09:45 plasma processing and particulate's composition

Speaker: Bianca Giaccone (Fermilab)

BGiaccone_TTC2020_Cern.pptx

10:00 Development of the position monitor by white light interferometer method in cryomodule at cERL

Speaker: Hiroshi Sakai (KEK)

WLI_monitor_TTC_200206_sakai.pdf

WLI_monitor_TTC_200206_sakai.pptx

10:15 Computer Vision solutions for Robot-assisted technology in SRF assembly at Fermilab

Speaker: Silvia Zorzetti (FNAL)

TTC_SRFautomation_SZ.pdf

TTC_SRFautomation_SZ.pptx

10:30 → 11:00 Coffee Break

11:00 → 12:30 Working Group Session: WG3_Characterization techniques

Conveners: Guillaume Jonathan Rosaz (CERN), Teng Tan (IMP), Tobias Junginger (University of Victoria/TRIUMF)

11:00 HIPIMS from QPR to 1.3GHz cavities (10'+8')

Speaker: Lorena Vega Cid (Centro de Investigaciones Energéti cas Medioambientales y Tecno)

TTC_HiPIMSfromQPRtoCavities.pptx

11:18 Predicting SRF Performance using muSR and betaNMR (10'+8')

Speaker: Edward Thoeng

TTC2020_-_Edward_Thoeng_06_Feb_2020.pdf

TTC2020 - Edward Thoeng (06 Feb 2020).pptx

11:36 RF local magnetometry (10'+8')

Speaker: Steven Anlage (UMD)

TTC2020_SRF_Anlage_v3.pdf

TTC2020_SRF_Anlage_v3.pptx

11:54 Predicting SRF performance PCT (10'+8')

Speaker: Thomas Proslier (CEA)

TTC-Proslier.pdf

TTC-Proslier.pdf

TTC-Proslier.pptx

12:12 Local magnetometry (10'+8')

Speaker: Daniel Turner (Cockroft)

Local_Magnetometry_D_Turner.pptx

11:00 → 12:45 Working Group Session: WG4_Robotic Techniques

Conveners: Hiroshi Sakai (KEK), Stéphane BERRY (CEA-Saclay), Tug Arkan (FNAL)

11:00 Robotics HPR Application for Elliptical FRIB Upgrade Cavity

Speaker: Laura Popielarski (FRIB/MSU)

Robotics_HPR_Application_for_Elliptical_FRIB_Upgrade_Cavity_for_publish.pptx

11:15 Robot assisted cavity HPR and assembly at IMP

Speakers: Hao GUO (IMP), Teng Tan (IMP)

TTC2020_CERN_Guo_Tan.pdf

TTC2020_CERN_Guo_Tan.pptx

11:30 Remote handling of UHV beam pipe connections in high-radiation zones

Speaker: Lukasz Piotr Krzempek (CERN)

IMG_0877.MOV

IMG_0883.MOV

TTC2020CERN.pdf

TTC2020CERN.pptx

11:45 Robotic disk stacking for the production of RF structures

Speaker: Riccardo Zennaro (PSI)

Robotic disk stacking for the production of RF.pdf

Robotic disk stacking for the production of RF.pptx

12:00 Chemical & Electropolishing facility for niobium (HL-LHC) and copper (FCC) substrates

Speaker: Valentin Gerbet

TTC_Valentin_Gerbet3.pdf

TTC_Valentin_Gerbet3.pptx

12:15 Seeking for a novel fabrication technology large-bore SRF-QWR cavity for 1-ampare class linac

Speaker: Hiroki Okuno (RIKEN)

200205_ttc_meeting_WG4_okuno.pdf

200205_ttc_meeting_WG4_okuno.pptx

12:30 → 14:00 Lunch

14:00 → 15:30 Plenary: Plenary talk 6, Plenary talk 7, Plenary talk 8

Welcome, Plenary talk 1, Plenary talk 2

Convener: Eiji Kako (KEK)

14:00 Progress on SRF technology in China

Speaker: Teng Tan (IMP)

TTC2020-HEY.pdf

TTC2020-HEY.pptx

14:30 Technical challenges for Korean SC Heavy Ion Accelerator

Speaker: Myeum Kwon (RISP)

TTC2020_kwonm (1).pdf

TTC2020_kwonm (1).pptx

15:00 Indian SRF contribution for FNAL PIP-II project

Speaker: Purushottam Shrivastava (RRCAT)

Indian SRF program Plenary Talk P Shrivastava RRCAT pdf.pdf

15:30 → 16:00 Coffee Break

16:00 → 17:30 Hot Topic: Processing and testing of large elliptical cavities (<1 GHz) for hadron linacs

Conveners: Grigory Eremeev (FNAL), Paolo Pierini (ESS), Sha Peng (IHEP)

EU-Section_V2.pdf

EU-Section_V2.pptx

HotTopic_session-CERN_04feb2020.pdf

HotTopic_session-CERN_04feb2020.pptx

19:00 → 21:00 Dinner

Friday 7 February

09:00 → 10:30 Plenary: Special Seminar 1, Special Seminar 2

Welcome, Plenary talk 1, Plenary talk 2

Convener: Sergey Belomestnykh (Fermilab)

09:00 Nuclear Reactions Studies with Radioactive Ion Beams at HIE-ISOLDE

Speaker: Gerda Neyens (CERN)

GN-TTC-2020.pptx

09:45 Physics and technology overview of LBNF Dune

Speaker: Serhan Tufanli (CERN)

Tufanli_DUNE_TTC2020.pdf

10:30 → 11:00 Coffee Break

11:00 → 13:00 Plenary: Summary WG1, WG2, WG3, WG4, TB/TC report, closing

Welcome, Plenary talk 1, Plenary talk 2

Convener: Paolo Pierini (ESS)

11:00 WG1 Report

Speakers: Ari Palczewski (Thomas Jefferson National Accelerator Facility), Kensei Umemori (KEK), Marc Wenskat (Deutsches Elektronen-Synchrotron DESY)

WG1_Summary.pdf

WG1_Summary.pptx

11:15 WG2 Report

Speakers: Eric Montesinos (CERN), Naruhiko Sakamoto (RIKEN), Sang Hoon Kim (FRIB)

20200207 TTC 2020atCERN WG2 summary.pdf

20200207 TTC 2020atCERN WG2 summary.pptx

11:30 WG3 Report

Speakers: Guillaume Jonathan Rosaz (CERN), Teng Tan (IMP), Tobias Junginger (University of Victoria/TRIUMF)

TTC2020 WG3.pdf

TTC2020 WG3.pptx

11:45 WG4 Report

Speakers: Hiroshi Sakai (KEK), Stéphane BERRY (CEA-Saclay), Tug Arkan (FNAL)

TTC2020CERN WG4 summary.pdf

TTC2020CERN WG4 summary.pptx

12:00 Technical Board Report

Speaker: Eiji Kako (KEK)

Kako Report of TTC-TB meeting at CERN 2020 February 07.pdf

Kako Report of TTC-TB meeting at CERN 2020 February 07.pptx

12:15 Chairman's Report

Speaker: Hans Weise (DESY)

TTC CB Report.pdf

TTC CB Report.pptx

12:30 Closing Remarks

TTC2020_CERN_closing_QSTHost_r3s.pdf

TTC2020_CERN_closing_QSTHost_r3s.pptx

13:00 → 14:15 Lunch

14:15 → 16:00 Lab. Tour