1. Engineering Status

2. Review Charge designs Talks by Peggs, Mayes, Berg, Lou Design Report
Remaining Talks

3. Upcoming Talks FFAG Magnets FFAG Girder Splitter DC Injector
Injector Cryomodule
Main Linac Cryomodule
Vacuum System
Beam Stop
Power Supplies
Controls
Instrumentation
Shielding
Systems Integration
Today (Monday)
Tomorrow (Tuesday)

4. FFAG Magnets Quadrupole / Horizontal OR Vertical dipole correctors
Permanent Halbach wedges glued in place to defined shimmed location on an aluminum frame
Alignment pins for repeatable assembly of Halbach magnet
Corrector assembly disassembles to allow for vertical Halbach split
Alignment pins for repeatable assembly of Halbach magnet

5. FFAG Girders Integrated H2O manifold Flexible component mounting
“pusher block” array
Cable tray

6. Splitter Hardware design in progress
Splitter RX Layout will use common components
Requirements
Splitter SX Layout
Magnetic Design
Vacuum Design
Mechanical Design
Summary
10 meters

7. 0.5 cm square with 0.25-cm diameter hole
Splitter
Quadrupole Feasibility Study and Design Concept
Requirements
Splitter SX Layout
Magnetic Design
Vacuum Design
Mechanical Design
Summary
Parameter
Quadrupole (14x14x15)
Model version number 12
Number of magnets 64
Gap or Bore (cm)
4.5
Steel height (cm) 14
Steel width (cm)
Steel length (cm) 15
Width including coil (cm)
17.2
Length including coil (cm)
Pole width (cm)
3.36
Good Field Region (mm)
± 15
Central Field Uniformity∗ (%)
± 0.01
Field Integral Uniformity∗
Field (G)/Gradient (G/cm)
10-490
NI (Amp-turns)∗∗
20-985
Turns per coil
4 + 3
Coil cross section (cm x cm)∗∗
0.55 x 1.65/2.20
Conductor cross section∗∗
0.5 cm square with 0.25-cm diameter hole
Conductor straight length (cm)∗∗
Coil inner corner radius (cm)∗∗
0.5
Conductor length per turn, avg (cm)∗∗
39.1
Rcoil (Ω)∗∗
L (mH)∗∗
4 x = 0.23
Power supply current (A)∗∗
Current density (A/mm2 )∗∗
Voltage drop for 1, 2 or 4 coils (V)∗∗
Power/magnet (W)∗∗
∗ Defined as horizontal deviation from the ideal field (BY − BidealY )/BidealY
∗∗ Conceptual model parameters for use as guidance only

8. DC Injector Work to date: Moved from Electron Source Development Lab
Installed in final position
Baked
HV Conditioned
Completed Sept 2016, Stable Operation at 350 kV

9. Injector Cryomodule ICM Work: Installation June 2016
Cool down to 4K (6/9/2016)
System check at 2K (6/15/2016)
ICM is fully tested and ready for RF power (October 2016)
Currently operating at 2K (Jan 2017)
Active pumping of Insulation Vacuum Vessel
Active pumping of beamline UHV
Input coupler N2 purge while ICM is idle (RF off)
Tested with beam up to 1000 kV/cavity (Dec 2016)

10. Main Linac Cryomodule

11. Vacuum
Two 4-cell beampipes (on two girders) is connected via sliding joints
One of the vacuum beampipe design challenges is satisfying both the beam aperture and magnet clearance requirements, while hosting a large suite of functional components (BPMs and beam instrument, vacuum pumping and gauging)
The 4-cell beampipe designs for the hybrid magnets (shown here) meet these requirement.
This work will be repeated when the Halbach FFAG cell geometry/lattice becomes available.

12. Beam Stop

13. Power Supplies Splitter Quads, Dipoles, and Septa FFAG Arc Correctors
Based on preliminary specifications of magnets John Barley has prepared multiple RFP, and collected quotations from numerous companies
This is primarily a procurement exercise, but is highly dependent on final magnet specifications
Moving quickly to splitter magnet procurement is essential

14. Controls

15. Beam Instrumentation

16. Shielding

17. Systems Integration

18. Complete and Operational
DC Electron Source
Laser Drive system
Buncher cavity
Injector Cryomodule
Merger
Diagnostics Beamline (EMS, Deflector, etc.)
Standard diagnostics:
Viewscreen
4 button BPM
Current monitor
Main Linac Cryomodule
Cryogenic Support (HX Can, distribution valve box, transfer lines, etc.)
Beam stop (600kW)

19. New CBETA Designs Splitter and table Magnet design
Vacuum system starting
Table
FFAG Magnet and Girder
Prototype magnets
Productionizing magnets
Girder Status
Layout and shielding (preliminary / ongoing)
Vacuum System
Halbach changes

20. Engineering Documentation
All engineering documentation generated by the collaboration is fully shared
Both laboratories use different engineering software platforms
A shared, cloud based repository of models and drawings will be maintained
(Box most likely)
All models will be shared as STEP files for interoperability, but also in their native formats
All drawings will be stored in their native formats, but also in PDF
Cornell is upgrading to a new version of Autodesk Inventor this spring which will allow direct import of BNL’s CREO model files
Due to security both groups will maintain their current cloud based data storage (Vault at Cornell, Sharepoint at BNL). Outside access is difficult.

21. Conclusions
Experienced Engineering (ME / EE) teams at both laboratories
Extensive prior art on which to draw
Large fraction of CBETA is already built or based on existing proven designs
BPM system (DAQ and vacuum side hardware already existent)
Halbach magnets already extensively prototyped and validated by testing
Remaining work in progress