1. JLEIC Engineering Status
T. Michalski
June 15, 2017
F. Lin

2. JLEIC Interaction Region
Status:
R&D Plans for SC Magnets
Proposal, schedule and budget for TAMU Model Dipole completion
IR Magnets – collaboration with BNL
IR Magnets – TOSCA designs at JLab (Started)
LDRD Proposal for 6T SC Dipoles and 3T Fast Ramping SC Dipoles
Design and Layout
IR Layout – initial layout – awaiting further detail on magnets and vacuum pipe design requirements
Tunnel size and cross section validation – underway
Staffing

3. TAMU Model Dipole
Plan for using supplemental R&D funds to complete the design of the model dipole during FY’18
Testing cannot be afforded until FY’19, based on supplemental R&D budget
TAMU anxiously awaiting funding to get things started
Further details from Peter McIntyre

4. IR Magnet – BNL Collaboration
We have assessed opportunities to collaborate with BNL on aspects of the IR magnet designs
Focus will be on higher field magnets – looking at Nb3Sn as the conductor
Preliminary assessment is there is an Ion Ring FFQ which has similar requirements for both JLEIC and eRHIC
Plan to review requirements in FY’17 and start concept design
Neither lab sees this fitting into FY’18 supplemental R&D funding

5. IR Magnet – TOSCA Modeling
Paul Brindza has completed a first design of the SB1 dipole – working to get it modeled in NX (CAD)
Renuka is working on QFFB1, with preliminary results

6. SC Magnet LDRD Probir has submitted a LDRD focused on:
6T SC dipoles for the Ion Collider Ring
Needed for 100 GeV center of mass energy
Alternate technology solution to SF magnets for
3T fast ramping dipoles for the Booster Ring
3T slower ramping dipoles for the Ion Collider Ring
Based on R&D Committee recommendations – insure we have backups for SF magnets
Will collaborate with LBNL on LDRD

7. JLEIC Interaction Region
IR magnets
SB1 IP
QFFB2
QFFB1
QFFB3
SB1
QFFB1_US
ions
QFFB2_US
QFFB3_US

8. JLEIC Interaction Region

9. All views are from above IP
Purple – Electron Final Focus Quads
Red – Ion Final Focus Quads
Green – Spectrometer Dipoles
Brown – Detector solenoid and anti-solenoids
Rectangular & Red – PEP-II HER Quads
Rectangular & Blue – PEP-II Dipoles
First cut has a variety of “trouble spots” which need to be addressed

10. Design and Layout Site layout with all available rings exists
Adding tunnel, based on FML dimensions and cross section – in process, awaiting further MD availability
IR Layout – adding details to IR magnets in NX as information comes available – in process, awaiting further MD availability
Adding PEP-II RF Cavity to layout – expect more space behind the beamline is required

11. Staffing Engineering staffing has been spotty, at best
Lab priorities have delayed moving staff to JLEIC
SC Magnet Engineers – Hall B Solenoid
LCLS-II Cryo and CM requiring bulk of MEs and MDs
Anticipate adding the following staff in the next 4-6 weeks
ME – Mark Wiseman – focus on IR (mechanical layout, cryostating FFQs, etc.)
Magnet Engineers –
Renuka Rajput-Ghoshal – focus on modeling IR magnets
Probir Ghoshal – LDRD and SF Model Dipole
MDs – beamline layout, IR layout, IR beam pipe