Workshop on Nb3Sn technology for accelerator magnets

from Thursday 11 October 2018 (08:00) to Friday 12 October 2018 (18:05)
Paris, France, Espace St Martin (Espace St Martin)

        : Sessions
    /     : Talks
        : Breaks
11 Oct 2018
12 Oct 2018
AM
08:00
Doors open (until 08:30) (Salle LOUXOR, 3rd floor)
08:30
Welcome adress (Pierre Védrine) / Workshop introduction (Pierre Manil) - Pierre Vedrine (Université Paris-Saclay (FR)) (until 09:00) (Salle LOUXOR, 3rd floor)
09:00
Coil technology - Impregnation process / influence of process on coil dimensions - Friedrich Lackner (CERN) Paolo Ferracin (CERN) (until 12:10) (Salle LOUXOR, 3rd floor)
09:00 Coil technology - Impregnation process / Influence of process on coil dimensions - Session Introduction - Paolo Ferracin (CERN) Friedrich Lackner (CERN) Chairs: Friedrich Lackner et Paolo Ferracin  
09:10 Coil Impregnation Proccesses and Experiences at FNAL - Steve Krave (Fermilab)  
09:40 CCT assembly and impregnation at PSI - Bernhard Auchmann (CERN)  
10:10 Flexible tooling used for impregnation of CCT R&D magnets - Eric Anderssen (Lawrence Berkeley National Lab (US))  
10:40 --- Pause - café ---
11:10 Impregnation of Nb3Sn coils at CERN - Sandra Tavares (CERN)  
11:40 Dimensional measurements of Nb3Sn coils after impregnation - Salvador Ferradas Troitino (Centro de Investigaciones Energéti cas Medioambientales y Tecno)  
08:00
Doors open (until 08:30)
08:30
Jc dependence to stress / strain state - Helene Felice (Université Paris-Saclay (FR)) Bernardo Bordini (CERN) (until 17:00) (Salle KARNAK, ground floor)
08:30 Jc dependence to stress / strain state - Session Introduction - Chairs: Bernardo Bordini and Hélène Felice  
08:40 EXTERNAL POINT OF VIEW: Strain effects and performance limitations in Nb3Sn Cable-in-Conduit Conductors - Luigi Muzzi (ENEA)  
09:20 The history of Transverse Pressure Tests of Nb3Sn Rutherford Cables - Arno Godeke (Lawrence Berkeley National Laboratory)  
09:50 Electromechanical characterization of Nb3Sn conductors at University of Geneva - Jose Ferradas Troitino (Universite de Geneve (CH))  
10:20 --- Pause - café ---
11:20 Irreversible Ic degradation of Hi-Lumi Nb3Sn Rutherford cables induced by transverse loading at room temperature - Jerome Fleiter (CERN)  
11:50 Critical Current Measurements of Nb3Sn Rutherford Cables Under Transverse Stress - Gianluca De Marzi (INFN e Laboratori Nazionali di Frascati (IT))  
12:20 Transverse pressure sensitivity of state-of-the-art Nb3Sn Rutherford cables - Dr Marc Dhallé (University of Twente)  
12:50 --- Pause - déjeuner ---
14:30 Stress concentration and effects in Nb3Sn accelerator magnets - emanuela barzi (Fermilab)  
15:00 Short Sample Limits for CCT Coils - Ian PONG (LBNL)  
15:30 --- Pause - café ---
16:00 A 3D Finite Element Model of the Reversible Critical Current Reduction due to transverse load in Nb3Sn wires - Alessandro Cattabiani (CERN)  
16:30 Computation of the Reversible Critical Current Degradation in Nb3Sn Rutherford Cables - Giorgio Vallone (Lawrence Berkeley National Lab. (US))  
PM
12:10 --- Pause - déjeuner ---
13:40
Material aspects / characterization - Maria Durante (Université Paris-Saclay (FR)) Pierre Manil (Université Paris-Saclay (FR)) (until 17:30) (Salle LOUXOR, 3rd floor)
13:40 Material aspect / characterization - Session Introduction - Maria Durante (Université Paris-Saclay (FR)) Chairs: Pierre Manil et Maria Durante  
13:50 EXTERNAL POINT OF VIEW: Contribution of a multi-scale approach to model and characterize supraconducting composites. - Véronique AUBIN (Centrale Supélec)  
14:30 Multi-scale characterization and behaviour laws of Nb3Sn strands - Gilles LENOIR (CEA Paris-Saclay)  
15:00 EXTERNAL POINT OF VIEW: Measuring in-plane displacement and strain fields with the grid method. A feasibility study on superconducting magnet - Michel GREDIAC (Université de Clermont-Ferrand)  
15:30 --- Pause - café ---
16:00 Measurement of Nb3Sn and Cu loading stress evolution in Rutherford cable stacks as a function of externally applied pressure - Christian Scheuerlein (CERN)  
16:30 Sub-modeling approach of plastically deformed geometries of Nb3Sn cables and strands for the 11T dipole magnet - Michael Daly  
17:00 Effect of transverse stress applied during reaction heat treatment on the stiffness of Nb3Sn Rutherford cable stacks - Felix Josef Wolf (CERN)  
17:30
Wrap-up & discussion - Chairs Sessions 1 and 2 - Chairs: session 1 & 2 (until 18:00) (Salle LOUXOR, 3rd floor)
18:00
Organisational address (until 18:10) (Salle LOUXOR, 3rd floor)
20:00
Dinner - LE TRAIN BLEU (until 22:00) (1er étage, Gare de Lyon, Place Louis Armand, 75012 PARIS)
17:00
Wrap-up & discussion - Chairs Session 3 - Chairs: Session 3 (until 17:30) (Salle KARNAK, ground floor)
17:30
Conclusions (until 17:50) (Salle KARNAK, ground floor)