Fraser Duncan Queen’s University Synergies in Low Background Techniques 26 July 2005 Underground Facilities at SNOLAB

Synergies Workshop 05/07/26 SNOLAB

Synergies Workshop 05/07/26 SNOLAB 2km SNOLAB Surface Facilities INCO Creighton #9 Mine

Synergies Workshop 05/07/26 Existing SNO Facility SNOLAB

Synergies Workshop 05/07/26 Phase I Existing SNO Facility Relocate -Lab Entry -Personnel Facilities Utility Area - Chiller - Generator SNOLAB

Synergies Workshop 05/07/26 Phase II Phase I Existing SNO Facility Relocate -Lab Entry -Personnel Facilities Phase II not expected to be constructed for Day 1 Utility Area - Chiller - Generator SNOLAB

Synergies Workshop 05/07/26 SNOLAB – Ladder Labs Wide Drift 20’x12’ (19’ to back) Wide Drift 25’x17’ (25’ to back) Access Drift 15’x10’ (15’ to back) Chemistry Lab Electrical, AHUs

Synergies Workshop 05/07/26 SNOLAB – Rectangular Hall Rectangular Hall 60’L x 50’W 50’ (shoulder) 65’ (back) Utility Drift Control Rm Staging Area

Synergies Workshop 05/07/26 SNOLAB – SNO Cavern SNO Cavern 70’dia x 100’ h SNO Utility Drift Control Rm South Drift - Existing Personnel Facilities

Synergies Workshop 05/07/26 SNOLAB – Cryopit (Phase II) Cryopit 50’ dia 50’ (Shoulder) 65’ (Back) Utility Drift Staging Area 20 Bar Bulkheads Exhaust Pipe

Synergies Workshop 05/07/26 Experiment Spaces

● Entire Lab will be a class 2000 clean room. ● Ventilation system designed for 10 air changes per hour through HEPA filters. ● Positive pressure from Cleanest spaces to dirtiest. Laboratory Ventilation Synergies Workshop 05/07/26

● Ventilation ● Power ● Cooling ● Water ● Communications ● Material Transport ● Radon Reduced Air ● LN2 ● Low Background Counting Synergies Workshop 05/07/26 Laboratory Infrastructure

● Setting up a small Ge Counter ● Lead + “aged copper” shield ● Lifting arm for Pb Plug ● Cu cover to be flushed with N 2 for Radon removal. ● 1 litre sample sizes Synergies Workshop 05/07/26 Low Background Counting

Synergies Workshop 05/07/26 Low Background Counting

Excavation Status

Surface Facilities

M Cleanroom LabsLocker Rooms Meeting Rooms IT Server Room

● 1 large experiment in the Rectangular Hall – (15 m scale) ● 1 large experiment in the SNO Cavern – (22 m scale) ● ~2 medium scale experiments in the ladder labs. – (4-6 m scale) ● Several smaller prototyping activities – (1-2 m scale) Synergies Workshop 05/07/26 Phase I Experimental Program

Synergies Workshop 05/07/26 Experiment Letters of Interest

● Finalize outfiting engineering design by September. ● Phase I excavation completed June ● Start outfitting Feb ● Ready for experiments beginning of Synergies Workshop 05/07/26 Schedule

● SNOLAB Phase I will provide 27,000 sq ft of class 2000 clean room at 6000 mwe. ● Excavation 25% complete ● Surface Facility Ready in September ● First Experiments 2007 Synergies Workshop 05/07/26 4 th SNOLAB Workshop August 2005 SNOLAB Site Sudbury Summary

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