1. 1 BROOKHAVEN SCIENCE ASSOCIATES NSLS-II Overview Satoshi Ozaki Director, Accelerator Systems Division NSLS-II Project March 27, 2007

2. 2 BROOKHAVEN SCIENCE ASSOCIATES  Synchrotron radiation light sources: Intense source of Light, IR to X-ray  The remarkable tools that were developed over the past 30 years  for visualizing the micro-world: crystal, molecule, DNA, etc  Micro-fabrications, etc  however, none of today’s light sources (anywhere in the world) were designed to probe materials with 1 nanometer spatial resolution and with 0.1 meV energy resolution with sufficient intensity The Mission for NSLS-II Our Mission is to build a highly optimized X-ray synchrotron radiation facility, delivering: extremely high brightness and flux; exceptional beam stability; and a suite of advanced instruments, optics, and detectors that capitalize on these special capabilities Together, these enable: ~ 1 nm spatial resolution ~ 0.1 meV energy resolution, and single atom sensitivity

3. 3 BROOKHAVEN SCIENCE ASSOCIATES Architectural Rendering of the NSLS-II Building

4. 4 BROOKHAVEN SCIENCE ASSOCIATES Layout Plan of the Facility

5. 5 BROOKHAVEN SCIENCE ASSOCIATES Accelerator System Configuration (1) Pre Injector: 200 MeV S-band Linac operating at 3 GHz -Linac tunnel + Klystron gallery Linac-to booster beam transfer line with two critical devices Booster synchrotron: 3 GeV (upgradeable to 3.6 GeV) -Booster tunnel: ~180 m in circumference -10 n Coulomb per cycle -Top-off operation: ~1 cycle per minute -Test and tuning operation: ~1 Hz (Interruptible if needed) -Separate booster tunnel and service building Booster to storage ring beam transfer line with two critical devices

6. 6 BROOKHAVEN SCIENCE ASSOCIATES Accelerator System Configuration (2) Storage Ring: ~780 m in circumference 3 GeV, 500 mA  1% Upgradeable to 3.6 GeV and/or 700 mA Top-off injection to achieve better than 1% beam current variation for the heat load stability Double bend achromatic lattice with 30 straights for beam injection, RF and insertion devices Ultra-small emittance (  x,  y ) : –Bare Lattice: ~2 nmrad Horizontal & ~0.01 nmrad vertical –Baseline: ~1 nmrad horizontal & ~0.008 nmrad vertical –Fully built-out: ~1/2 nmrad horizontal, ~0.008 nmrad vertical Estimated beam life-time: 2 – 3 hours High level of reliability and stability of operation

7. 7 BROOKHAVEN SCIENCE ASSOCIATES Injection System Layout (Preliminary)

8. 8 BROOKHAVEN SCIENCE ASSOCIATES Storage Ring and the Ratchet Wall

9. 9 BROOKHAVEN SCIENCE ASSOCIATES Tunnel Cross Section at the Narrowest Points 1 m thick roof, normal noncrete Earth berm inside of the ring to the top of tunnel roof Experimental hall Power supplies and service equipment gallery Beam line Tunnel: 2.75 m high & 3 m wide at the narrowest point. Stay clear zone: 2 m high & 1.5 m wide

10. 10 BROOKHAVEN SCIENCE ASSOCIATES CAD Picture of Storage Ring Configuration Insertion device installed Insertion device being transported Beam shutter Front end Tunnel wall thickness varies depending on the distance to the center of the stored beam

11. 11 BROOKHAVEN SCIENCE ASSOCIATES NSLS-II Beamlines Beamlines: High brightness sources from IR, UV to hard x-ray 3 to 5 pairs of wide gap dipoles for infra-red beams Regular bending magnets for soft X-rays Up to 20 three pole wigglers for hard X-ray beams 19 straight sections for undulators for high brightness hard X-ray beam lines 8 straight sections for damping wiggler (each 7 m long) high power beam lines Altogether the NSLS-II can have at least 57 beamlines More by canting multiple IDs per straight Multiple hutches/beamline are also possible to increase the number of experimental stations

12. 12 BROOKHAVEN SCIENCE ASSOCIATES Overall construction Schedule

13. 13 BROOKHAVEN SCIENCE ASSOCIATES Current Status and Future Upgrades Current Status: NSLS-II team was successful in presenting the CDR of the facility to the DOE Review in November 2006 CD-1 approval is expected in May of this year Presently we have stepped up our efforts on advanced conceptual design and preliminary design of the facility for the CD-2 review now scheduled in November of this year Future Upgrades: Increase energy (3.5 GeV) and/or current (700 mA) Is the shielding design adequate? As a long-term upgrade, a possibility of operating NSLS-II in an ERL mode is not precluded

14. 14 BROOKHAVEN SCIENCE ASSOCIATES NSLS-II Brightness

15. 15 BROOKHAVEN SCIENCE ASSOCIATES NSLS-II Flux