1. Summary of Session: Magnets and undulators for light sources 2
Ben Shepherd (STFC Daresbury Laboratory)
The ZEPTO project: tunable permanent magnet dipoles and quadrupoles
Joel Chavanne (ESRF)
Magnets and insertion devices for the ESRF upgrade
Jim Clarke (STFC Daresbury Laboratory)
Summary of the 2014 Superconducting Undulator Workshop
Soren Prestemon (LBNL)
Superconducting technologies for Light Source undulators 
Sara Casalbuoni (ANKA, KIT)
Superconducting undulators: Experience from ANKA
Marco Calvi (Paul Scherrer Institut)
FEL undulators: from beam specifications to magnetic measurements
Diego Arbelaez (LBNL)
Design of the permanent undulators for the Linac Coherent Light Source Facility II

2. Development driven by dimensions of CLIC (42000 quads)
Ben Shepherd (STFC Daresbury Laboratory)
The ZEPTO project: tunable permanent magnet dipoles and quadrupoles
Development driven by dimensions of CLIC (42000 quads)
PM Quadrupoles high strength
large tunability
PM Dipoles
Advantages: operational costs
infrastructure requirements and power load

3. Machine upgrade 2BA -> 7BA smaller magnets: apertures divided by 2
Joel Chavanne (ESRF)
Magnets and insertion devices for the ESRF upgrade
Machine upgrade 2BA -> 7BA
smaller magnets: apertures divided by 2
significantly reduced good field regions
Permanent magnet based Dipoles and Quadrupoles
R&D high gradient compact pm quadrupoles
Smaller gap shorter periods CPMUs

4. Overview of worldwide activities US: APS LNBL Europe: KIT/ANKA / Noell
Jim Clarke (STFC Daresbury Laboratory)
Summary of the 2014 Superconducting Undulator Workshop
Overview of worldwide activities
US: APS
LNBL
Europe: KIT/ANKA / Noell
STFC/DLS
BINP
ASIA: SINAP, Shanghai
NSRRC, Taiwan
Modelling
Measurements
Beam Heating
and he told about enthusiastic people involved
needs to proove a full length SCU in a 3GLS storage ring

5. Development based on Nb3Sn
Soren Prestemon (LBNL)
Superconducting technologies for Light Source undulators
Development based on Nb3Sn
Discussed optimization of coil configuration (end design)
and
Concept for in-situ tuning based on YBCO tapes

6. Good luck for installation of new still before Christmas !
Sara Casalbuoni (ANKA, KIT)
Superconducting undulators: Experience from ANKA
Collaboration with Industry Noell
SCU14 demonstrator in 2005
SCU15DEMO to be installed 12’ periods
ongoing program:
SCU20
2 in 1 SCUW undulator and wiggler in one device
CASPERI vertical test cryostat to test short mock-ups, winding schemes, …
COLDDIAG chamber to test beam heat load at various sources
Good luck for installation of new still before Christmas !

7. Undulator for SwissFEL: modular Design for invac, APPLE, …
Marco Calvi (Paul Scherrer Institut)
FEL undulators: from beam specifications to magnetic measurements
Undulator for SwissFEL:
modular Design for invac, APPLE, …
(semi - ) automatized field optimization
cost effective series production
13 modules only but periods

8. Permanent magnet based undulators
Diego Arbelaez (LBNL)
Design of the permanent undulators for the Linac Coherent Light Source Facility II
via Skype
Permanent magnet based undulators
Optimized sorting and keeper design for faster field optimization
Pulsed wire:
algorithm
Dispersion correction algorithm
advanced to incorporate phase information

9. Discussion SCU new drive through LCLS II
max field, shortest period reasonable gaps
SCU: NbTi, Nb3Sn, HTS
Permanent: Cryogenic undulators based on 77K
room temperature with Dy enhanced magnets
PM based magnets
huge potential in compactness
reliability of motors/encoders vs PS (inside / outside tunnel)

10. SCU R&D Plan in Brief ANL… LBNL… Both Labs…
Slide stolen from Paul Emma from January 2014
SCU R&D Plan in Brief
ANL…
Builds 2-m test cryostat (based on existing design at APS)
Build & test 1.5-m long NbTi prototype planar undulator (lu  21.0 mm)
LBNL…
Build & test 1.5-m long Nb3Sn prototype planar undulator (lu  18.5 mm)
Develop and tune each of the NbTi and Nb3Sn undulators
Both Labs…
Develop field measurement and field correction techniques
Demonstrate predicted field, field quality, end-field corrections, field measurement and tuning, cold mass fiducialization, and integration of cold mass into cryostat
Goal: Within 18 months deliver 2 fully functional, 1.5-m long, SC prototype undulators which meet LCLS-II specifications

11. SCU R&D and LCLS-II Construction Time-Line
Slide stolen from Paul Emma from January 2014
SCU R&D and LCLS-II Construction Time-Line
17-Month SCU R&D (to ~May 2015)
3-Year production cycle for 33 SCU segments (~3 m/ea)
Installation of LCLS-II undulator starts mid-2018
Undulator
Production
SCU R&D
2014
2015
2016
2017
2018
2019
2020
Start SCU
R&D
End R&D
Start Und.
Installation
Start Und.
Production
Linac and Cryo Install Complete