1 / 26

Insertion Devices

Insertion Devices. Toshi Tanabe Insertion Device Group Leader Accelerator System Advisory Committee October 22-23, 2009. Outline. Changes / Progress since last ASAC ID review ID Table / Official Schedule Progress on Each Device R & D (PrFeB, IVMMS, 4m Square Chamber)

eavan
Download Presentation

Insertion Devices

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Insertion Devices Toshi Tanabe Insertion Device Group Leader Accelerator System Advisory Committee October 22-23, 2009

  2. Outline • Changes / Progress since last ASAC ID review • ID Table / Official Schedule • Progress on Each Device • R & D (PrFeB, IVMMS, 4m Square Chamber) • FY10 Goals and Milestones • Conclusions

  3. Changes since ASAC07 PCR to reschedule (pushed later due to labor shortage) some activities in 1.02.01.03 & 1.03.08.02 PCR approved to add SRX beamline device (1.5m IVU with 21mm period) with canting magnet and vacuum chamber for the second device section Additional IVUs requested to be added to the baseline For IXS beamline (2 x 3m IVU with 22mm period having wider pole) Additional IVUs might be added to outside the project baseline 2-3 IVUs for NIH funded beamlines 6-7 MIE devices (specs not decided)

  4. Progress since ASAC07 • New Hires • A Mechanical Engineer (0.9FTE: starting on 11/08) • An Electrical Engineer (0.8FTE: starting on 04/09) • One Mechanical Technician (T6) position open • One Assistant Scientist (S1) position open • One Electrical Engineer (P5) position open • Technical Status of Systems • PM Damping Wiggler (DW)  Design and Build Contract with APS • In-Vacuum Undulator (IVU)  Mechanical design started • Elliptically Polarized Undulator (EPU)  Specs determined • Three Pole Wiggler (3PW)  Interraction study on going • Magnet Development Laboratory (Insertion Device Magnet Measurement Facility)  Hall probe bench purchased, Clean room RFP completed.

  5. NSLS-II Insertion Devices (SEP/09) *For each plane

  6. PCR required PCR required

  7. Damping Wiggler NdFeB-PM with Side Magnets and Permendur Pole (width 80mm), lu=90mm, Gap=12.5mm, Symmetric magnetic field Vacuum Chamber (APS type? ), Aperture Size 9.5mm (v) x 76mm (h) Conceptual Design Symmetic Field with 37 Full Strength Periods

  8. APS Proposal • Similar concept as LSLS undulator • CAD Model

  9. NSLS-II In-Vacuum Undulator • X25-MGU based IVU lu=20mm, Minimum Gap=5.0mm, 3m Long • Baseline design uses conventional NdFeB (Br=1.12T, Hcj=30kOe) • Future cryo-option with PrFeB Magnet • Cold Measurement System is being developed for CPMU mode • Vacuum Chamber shape still undecided (Square v.s. Cylindrical) Opera 3D Simulation NSLS MGU-X25

  10. EllipticallyPolarized Undulator (EPU) • Apple -II, lu=49mm, 2x2m Long (canted -0.125mrad:0.25mrad:-0.125mrad) • Gap=11.5mm (Enough space for current strips for dynamic multipole correction) • Vacuum Chamber Aperture Size 8.0mm (v) x 61mm (h) (tentative) Linear Helical Vertical 45°Inclined

  11. Three Pole Wiggler (3PW) (WBS1.03.07.04) • Design (Central Pole Gap=28mm) • Br=1.22T, Permendur Center Pole • & Soft Iron (1006) Side Poles • Rectangular Magnets • Insert / Extract from a side of the chamber • ACD Design

  12. TPW Estimated Emission Spectra (taking into account contribution from Bending Magnets) Spectral Flux per Unit Surface at Different Horizontal Positions at 30 m from TPW Electron Energy: 3 GeV; Current: 0.5 A; Emittance: 0.9 nm Rel. Energy Spread: 8.9x10-4 Twiss Parameters of Dispersion Section (end)

  13. Interaction Study for 3PW, Corrector and Dipole Magnet Electron Beam 35 mm Dipole 156mm Corrector 3 Pole Wiggler 225mm 200mm

  14. ID Tolerance Requirement (SEP/09) • 1st & 2nd • Integrals • Insertion Device • Integrated Multipoles Unit 

  15. Feed Back Estimate (by L.H. Yu) ID at Short straight section at 80 m with kicks at the ends vertically corresponding to ID with correction coils I1=5 Gauss.cm , I2=300 Gauss.cm2 , for one sample. Feedback on Feedback off Detail near ID, Feedback on

  16. Magnet Development Lab (WBS1.02.01.03)Insertion Device Magnetic Measurement Facility (WBS 1.03.08.02) • ISO 14644-1 Class 7 (former Class 10000) Temperature Controlled Semi-Clean Room for IVU Measurement • 25.5 °C ± 0.2 °C  < 20 °C for IVU Array cooling water, 25.5 °C for tunnel temp, and 28 °C for genetic cooling water • Low vibration required by pulsed wire measurement • Cleanliness is also required for air-bearing stage in Hall probe bench • Standard ID measurement setups • 6.5 m Hall probe bench (Kugler) • Integrated Field Measurement System (Flip coil, Moving wire, etc. ) • Stretched / pulsed wire system (3-4m)  HV pulser for pulsed wire. • Magnet characterization equipment (Helmholtz coil / small moving coil) • 3D-Probe calibration system with a dipole magnet (PS ~ 200A / 80V) • Preparation for Phase-2 device development • In-Vacuum measurement apparatus • Superconducting measurement apparatus

  17. Bldg. 832 3D-Layout ISO-7 Clean Room for Measurement ID Lab Tech Shop Pulsed Magnet Lab RF Lab

  18. Insertion Device R&D • Remaining R&D activities • In-Vacuum Hall probe measurement system • Square UHV-ID chamber development • Improved pulsed wire system development • PrFeB array test in VTF with re-circulating refrigerator • Possible Additional Future R&D activities • SCU development (APC wire, HTS tape and bulk HTS) • Micro multi-turn coils development • Textured Dy pole development

  19. PrFeB Magnet 77K Measurement • PrFeB (53CR v2 magnet) Manget Arrays • Cut from a large piece  M vector uniformity is poor  Sorted by signature method • Period Length = 14.5mm, Gap=4.85mm • RT measurement on granite Hall probe bench (Gap=4.85mm) for references • RT & LN (77K) measurement on VTF • Increase of ~19 % in Br

  20. PrFeB H v.s. M at 77K Measured by SQUID

  21. Phase Error Change from RT to LN2 temp. • RMS Phase Error • = 3.5 degree • RMS Phase Error • = 3.1 degree lu = 14.489 mm lu = 14.503 mm

  22. Phase Error Change from LN2 to LHe temp. Hall Probe Output Voltages • RMS Phase Error • = 6.8 degree • RMS Phase Error • = 3.5 degree lu = 14.433 mm lu = 14.489 mm

  23. 4m Square UHV Proto Type (Preliminary) • 4m Square UHV Chamber • Test of sealing, deformation • Either Aluminum or 316LN • Will be mated to IVMMS for testing • Impedance Effect  OK

  24. FY10 Goals & Milestones DW Detailed Design Set up a Clean Room and Hall Probe Bench in Bldg. 832 Procure or Develop Wire Based Integrated Field Measurement System Proto Type In-Vacuum Magnetic Measurement System (IVMMS) Proto Type 4m Square UHV Chamber Proto Type ID Control HW Test

  25. ID-Group FTE Profiles in the Baseline Budget

  26. Summary • Damping Wigglers • Negotiations of design and build contract with APS continue • IVU • Design effort starts with SRX-IVU • Transition region design is unconventional due to adjacent small gap for ID-BPM • Long Straight IVU not trivial • EPU • Active shimming with current strips are being investigated. • 3PW • Only Design budget is in the baseline budget. Need to create PCR to construct a proto type • R&D and Future Devices • IVMMS design continues • 4m Square vacuum chamber design continues • PrFeB CPMU will be very promising candidate for next generation undulator

More Related