Fraser DuncanQueen’s UniversitySynergies in Low Background Techniques26 July 2005

Underground Facilities at

SNOLAB

Synergies Workshop 05/07/26

SNOLAB

Synergies Workshop 05/07/26

SNOLAB

2km

SNOLAB

SurfaceFacilities

INCOCreighton#9 Mine

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ExistingSNO Facility

SNOLAB

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Phase I

ExistingSNO Facility

Relocate-Lab Entry-Personnel Facilities

UtilityArea- Chiller- Generator

SNOLAB

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Phase IIPhase I

ExistingSNO Facility

Relocate-Lab Entry-Personnel Facilities

Phase II notexpected tobe constructedfor Day 1

UtilityArea- Chiller- Generator

SNOLAB

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SNOLAB – Ladder LabsWide Drift

20’x12’(19’ to back) Wide Drift

25’x17’(25’ to back)

Access Drift15’x10’(15’ to back)

ChemistryLab

Electrical,AHUs

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SNOLAB – Rectangular Hall

RectangularHall60’L x 50’W50’ (shoulder)65’ (back)

Utility Drift

Control Rm

Staging Area

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SNOLAB – SNO Cavern

SNO Cavern70’dia x 100’ h

SNO UtilityDrift

Control Rm

South Drift- Existing Personnel Facilities

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SNOLAB – Cryopit (Phase II)

Cryopit50’ dia50’ (Shoulder)65’ (Back)

Utility DriftStaging Area

20 Bar Bulkheads

Exhaust Pipe

Experimental Space Length Width Height Area(ft) (ft) Shoulder/Back (sq ft)

Existing SNO Cavern Cavern 85’/100’ 3848Utility Drift 187 23 4300Control Room 57 20 1140

South Drift Drift 106 17 10’/16’ 1802Phase I Ladder Labs Drift C1 105 20 12’/19’ 2100

Drift C2 75 25 17’/25’ 1875Drift B&D 360 15 10’/15’ 5400

Rectangular Hall Hall 60 50 50’/65’ 3000Utility Drift 115 20 10’/17’ 2300Staging Area 45 16 10’/15’ 720Control Room 62 18 10’/16’ 992

Phase II Cavern 50’/65’ 1963Utility Drift 141 20 10’/17’ 2820Staging Area 66 16 10’/15’ 1056Control Room 64 16 10’/15’ 1024

Existing SNO 11090Phase I 27477Phase II 34340

70(dia)

Cryopit 50(dia)

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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

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● Ventilation

● Power

● Cooling

● Water

● Communications

● Material Transport

● Radon Reduced Air

● LN2

● Low Background CountingSynergies 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 N2 for Radon removal.

● 1 litre sample sizesSynergies Workshop 05/07/26

Low Background Counting

Synergies Workshop 05/07/26

Low Background Counting

Excavation Status

Surface Facilities

Surface Facilities

M

Cleanroom Labs Locker 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

Physics

0nu BB Other Target Possible Space Participating Institutions

CDMS X 1T Solid State Ge/Si US(12)

CLEAN X X 200T Cryogenic Liquid Ne US(4)COBRA X Ladder Labs UK(6), DE, ItDRIFT X 100kg Gaseous CS2 Ladder Labs UK(4), US(4)

EXO X US(6), Ca(2), Ru, HL

GERDA X 1T Solid State Enriched 76Ge DE

HALO Supernova Ladder Labs US(1), Ca(1)LENA 64kT Liquid Scintillator Not appropriate DELithium X 10T Liquid Li Ladder Labs Ru(1)

X 1T Solid State Enriched 76Ge Ladder Labs US(5), Ca(1)Noble Liquid X US(12)

NOSTOS Theta_13 Spherical TPC SNO Cavern

PICASSO X Cube Hall Ca(3), US, ItSNO+ X X Geo Nu SNO Cavern Ca(2), US(1)TRIGA US

XENON X Ladder Labs US(7)ZEPLIN X 1T Cryogenic Liquid Xe Ladder Labs UK(4), US(2), Ru, Pt

ExptDark Matter

Solar Nu

Ladder Labs, Rectangular Hall

Cryopit, Rectangular Hall350 kg Solid State CdZnTe

1T Cryogenic Liquid Xe or Gaseous Xe

Ladder Labs, Rectangular Hall

SNO Cavern, Cryopit90T Pb with 3He Neutron Counters

Majorana

Fr, Sw, DE, Ne, Gr, US, UK, Ca

Superheated Droplet F detec-tor1000T Liquid Scintilator

N-Nbar100kg – 1T Cryogenic Liquid Xe

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Experiment Letters of Interest

● Finalize outfiting engineering design by September.

● Phase I excavation completed June 2006.

● Start outfitting Feb 2006.● Ready for experiments beginning of

2007.

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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

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4th SNOLAB Workshop15-17 August 2005SNOLAB Site Sudburyhttp://www.snolab.ca

Summary

End