NSLS – II ASAC Review

1. NSLS – II ASAC Review Conventional Facilities Briefing Marty Fallier Director for Conventional Facilities National Synchrotron Light Source – II Project October 10, 2006

2. Outline • Conventional Facilities Scope • Facility Overview • Facility Program • WBS • Tunnel Design & Access • Differential Settlement • Vibration Mitigation • Utility Support • Temperature Stability • Control Room • Schedule

3. NSLS II Facility Overview

4. Site Plan NSLS Conf. Center Service Bldg Typ 4 CLOB CFN Future JPsi RF-LINAC AREA Future Guest House LOB Typ 4 Ring Bldg Loading Underpass

5. Building Program

6. Conventional Facilities WBS

7. Floor Plan – CLOB 1st

8. Floor Plan - CLOB 2nd

9. Floor Plan – CLOB 3rd

10. Tunnel Design • Roof and wall thicknesses generally driven by shielding criteria except inner wall in area of berm (just structural) • Outer wall (ratchet wall) is HD concrete • During T-I will study whether precast or poured in place provides best balance of technical and cost performance • Tunnel floor thickness driven primarily by vibration criteria • During T-I will do modeling to arrive at optimal thickness and section shape • Rigidly connected to exp. floor to create monolithic floor • Penetrations from above for power and cooling water • Penetrations from sidewall for HVAC Supply and Return

11. Tunnel Design - Ring Building Section

12. Tunnel Access • Egress for life safety achieved by exits at each service building location • Large shielded doors for equipment access provided at Service buildings for tunnel entry • Mandoors and labyrinth provided at each Service building • Vehicle ramp to roll-up door at 2nd floor of each Service Bldg provides equipment access to electrical mezzanine at top of tunnel • RF & LINAC areas integrated with CLOB structure have similar access as Service Bldgs

13. Service Bldgs

14. Differential Settlement • Measures to reduce potential for differential settlement include: • Thorough geotechnical analysis of site to identify problem areas • Minimize footprint over disturbed areas • Set finished floor elevation for maximum cut and minimum fill • Early site preparation contract for maximum time to cut, fill, compact and observe settlement prior to building contract. • Monolithic slab design for tunnel and experimental floor • High slab stiffness, Tunnel 36”; Experimental Floor 18” • Building loads isolated from tunnel and experimental floor slab • Access corridor isolated from experimental floor slab

15. Vibration Mitigation • Measures to be implemented in conventional design include: • “Monolithic” slab for accelerator and experimental floor • Slab thickness and section changes based on vibration modeling results during Title I • Possible use of polymer admixtures for enhanced damping characteristics • Isolation of bldg structure from tunnel and slab • Inertial bases and isolation of machinery • Low flow velocity design for ducts and piping • Limited use of duct and piping isolation to avoid conversion & transmission of low frequency vibration • Commissioning of equipment and systems to include alignment, balancing & vibration measurement

16. Utility Support • Utilities run underground in center of ring and distributed to five service bldgs (one in CLOB RF/LINAC area) • Minimizes pipe runs and pipe size in bldg proper • Minimizes potential noise and vibration impacts • Mechanical Utilities include: • Chilled water from expansion of Central CHW plant • Tower water from process cooling water tower • Potable water, compressed air, sanitary etc. • Electrical Utilities distributed via substation and load center at each services bldg

17. Utility Support

18. Utility Distribution

19. Temperature stability • Key temperature stability requirement is tunnel air @ +/- 0.1C at a given location with respect to time. • Requires high resolution industrial grade instruments and controls with excellent repeatability. • Control scheme using programmable controllers and reheat with temperature reset capability • Space temp setpoint of 85 F is nominally equivalent to process cooling water supply setpoint to minimize temperature gradients • Should be readily achievable provided loads to accelerator components are relatively steady-state

20. Tunnel Temperature Control

21. Tunnel Air Distribution

22. Control Room • The Accelerator Control Room is located on the second floor of the CLOB above the LINAC-RF area • Provides ready access to Tunnel, RF & LINAC areas and electrical mezzanine • Computer room is adjacent to control room and control room operators meeting room • Additional study is required to identify optimal cable routing which may indicate computer room may be more advantageously located on 1st or 3rd floor

23. Schedule • Conventional Facilities Schedule has been coordinated with Accelerator requirements. • Construction sequencing will enable • Availability of Ring Bldg for LINAC, booster and storage ring installation to begin – June 2011 • LINAC & Booster can be sooner if required • Control/Computer room availability in CLOB - August 2011 • Conventional Construction complete - October 2011