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This document provides a comprehensive status update from the SNOLAB Workshop held on October 4-5, 2008, led by Fraser Duncan. It outlines the construction progress, including excavation, outfitting, and essential utility areas within the underground laboratory. Key features include the SNO facility's existing infrastructure, muon flux measurements, and plans for experimental spaces. The report details the collaboration with contractors, project management descriptions, and completion statuses of various phases, alongside future steps for utilities and experimental setups.
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Status of SNOLAB Development Fraser Duncan SNOLAB Workshop 4 Oct 2008
SNOLAB Surface Facility 2km overburden (6000mwe) Muon Flux = 0.27/m2/day Underground Laboratory MEI & HIME astro/ph 0512125 Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
SNOLAB Existing SNO Facility Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
SNOLAB Phase I Existing SNO Facility Utility Area - Chiller - Generator Relocate -Lab Entry -Personnel Facilities Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
SNOLAB Phase II Phase I Existing SNO Facility Utility Area - Chiller - Generator Relocate -Lab Entry -Personnel Facilities
Laboratory Space Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Construction (Underground) • Project Management: by Acres (now Hatch Energy) – Satish Bhan Project Manager. • Engineering: Design – Hatch Energy; Geotechnical – Itasca; Excavation - Macintosh. • Excavation: Contracted to J.S.Redpath Ltd. • Phase I: Began Nov 2004, completed May 2007 • Phase II: Began Jun 2007, completed Jun 2008 • Total excavation 6000 m2 / 39,000 m3. • Outfitting: Contracted to Comstock Canada Ltd with sub contracting for specialties. • Began Jun 2007 • Done: Refuge station, Lab entrance • To Do: Completion of Utility Area (chillers, stp, fire water system); Ventilation in Ladder Labs, Cube Hall and Cryopit Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Excavation Status: Aug 2007 Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Excavation Status: Today Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Personnel Area
Personnel Area
Ladder Labs
Hall Bottom Access
Chiller Rm
Chiller Rm
STP Rm
Access Drift
Next Steps • Contractors • Finish Utility Area: Finish chiller assembly; piping to waste water plant; fire water lines to 6600L; commission chillers, STP. • Finish work in Experimental Areas: running water lines to Cube Hall and Cryopit; hook up electrics; Building Automation System; Fire Alarm. • SNOLAB • Fine cleaning of Personnel Area (showers, change rooms, lunch room, meeting room). • Fine cleaning of laboratory entrance (carwash, junction, access drift to SNO facilities). • Services including network Infrastructure, water pretreatment (relocation), up size 13kV power feed, ... Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Finish Line • Day 1 • Support Facilities: Enlarged personnel area and material handling facilities. • Experimental Spaces: Existing SNO Cavern, Cube Hall, Ladder Labs all operated as Clean Rooms. Cube Hall and Ladder Labs will be “bare rooms” but with nearby services. • Day 2 • Cryopit: Paint and fine clean. • South Drift: Remove old carwash and personnel facilities. Recover as experimental space. • Underground “clean room” machine shop. • Underground chemistry lab. Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Day 1 Infrastructure • Power Distribution • 2000 kVA capacity at 600V. 400A/600V services to the experimental areas except the Cryopit (deferred). Able to accommodate a future backup generator. Future Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Day 1 Infrastructure • Power Distribution Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Day 1 Infrastructure • Cooling • 300 T (1MW) Chiller; Chilled Water Loop: 250 PSIG, 5C. Distribution to SNO Utility, Cube Hall and Cryopit. CHILLER Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Day 1 Infrastructure • Ventilation • Main ventilation hard ducted. Distribution into Experimental areas with soft duct. 5-10 air changes per hour. HEPA filtered. Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Day 1 Infrastructure • Communications • Multimode 200 Mb/s capacity between surface and underground. 1 Gb/s off site. • Will complete a Gb/s single mode fibre link between underground and surface in the near future. Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Day 1 Infrastructure • Other Services • Industrial water, fire water, forced drain, compressed air. • Ultrapure water from the SNO water purification plant. • LN2 supplied by transport dewar from surface. • Low Background Counting • 1 existing HPGe Gamma Counter. Requesting funds for 2 additional counters. • Rn/Ra Emanation (Electrostatic Counters, Radon emanation. Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Staff • Staff of ~40 • Operations: Cleaning, material handling, maintenance, lab supervision. • Technical Support: Plant operations, chemistry, electrical, electronics, instrumentation. • Design: Primarily mechanical and process systems expertise. Design work, reviews. • Construction: Small construction group with expertise in the SNOLAB related issues. Assists with experiment installation. • IT: Networking, system administration. • Admin: Procurement, shipping and receiving, training. Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Experimental Program • The experimental program has concentrated on astroparticle physics but has also had submissions from other fields such as seismology and fundamental constants. • Requests for space are reviewed by the Experiment Advisory Committee (EAC) which makes recommendations to the Director. • To date 25 Letters of Interest or proposals have been submitted, 13 of which have been recommended by the EAC as appropriate for pursing for siting at SNOLAB. Of these 8 have developed mature plans to come to SNOLAB. Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Experimental Program Unallocated 2009: DEAP/CLEAN 3600, MiniCLEAN 360 Cube Hall Unallocated Cryopit Unallocated Utility Drift Phase III Stub Unallocated 2010: SuperCDMS Now:PICASSO-II Now:DEAP-1 Now:PUPS Ladder Labs Unallocated SNO Cavern South Drift 2009: SNO+ Personnel facilities • Experiments expected • to request space soon: • EXO 200 Gas • HALO • PICASSO-III Utility Area
Beyond Construction • With the laboratory almost complete, construction emphasis is shifting to facilitating the siting of experiments. • Cube Hall: Begin steel work for DEAP/CLEAN and MiniCLEAN. • SNO Cavern: Repair of liner floor and install of hold downs for SNO+. • SNO Utility Rm: Excavation of pit for SNO+ scintillator plant. • Renovation of South Drift, old Carwash, ... Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Schedule 2008 2009 Fraser Duncan SNOLAB Workshop 4-5 Oct 2008
Summary • Construction is almost complete! • Ready to begin the installation of the Day 1 experiments. Civil work can being any time in the new laboratory areas. • We plan to install steel in the Cube Hall at the beginning of 2009. • Some space has been allocated for experiments but there is still significant room available. • SNOLAB is open for business. Fraser Duncan SNOLAB Workshop 4-5 Oct 2008