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Lower Campus. Harry Nelson UCSB HUSEP Ft. Collins Nov. 19, 2005. SNOLAB. Rectangular Hall 60ft L x 50ft W x 50ft H. Cryo-Pit 65ft H x 50ft OD. Underground Laboratory Conceptual Layout White Paper Description in Progress. SNO Cavern 110ft H x 75ft OD. Ladder-Labs 15ft W x 10ft H

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Lower Campus

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Lower Campus

Harry Nelson

UCSB

HUSEP Ft. Collins

Nov. 19, 2005


SNOLAB

Rectangular

Hall

60ft L x 50ft W x 50ft H

Cryo-Pit

65ft H x 50ft OD

Underground Laboratory

Conceptual Layout

White Paper Description in Progress

SNO Cavern

110ft H x 75ft OD

Ladder-Labs

15ft W x 10ft H

20ft W x 10ft H

Chemistry

Lab

 Excavation has begun under contract with Redpath

 First new space in about 1 year

 Laboratory complete in 2007

Ft. Collins DUSEL Workshop


Clean Areas Overpressure – (all Class 2000)

 H2S – air scrubbed

(From Frasier Duncan)

Ft. Collins DUSEL Workshop


Initial Suite of Experiments (Bernard Sadoulet)

Deep Campus

Biology observ.

Deep Biology Drilling

3 Medium block experiments

PHYSICS

TPC

Solar ν

DM

ββ

Ft. Collins DUSEL Workshop


Xenon Infrastructure (Hanguo Wang)

Ft. Collins DUSEL Workshop


Bubble Lab Infrastructure (Andrew Sonnenschein)

  • Scalability and simplicity of construction of bubble and droplet chambers may create a demand for significant amounts of deep underground space on a short time scale.

  • Depth. Must Henderson equal SNOLAB depth to compete effectively for these projects? Would Henderson “central campus” be an acceptable place to be in 2010?

  • Type of underground space: General purpose, “Gran Sasso style” caverns would allow the lab to quickly adapt to new technologies, while custom excavations force us to plan further ahead and limit flexibility.

  • Access for large, heavy modules. These technologies probably allow instruments up to ~1 ton active mass to be built outside the lab and brought in on trucks.

  • Need water for shielding rock neutrons and perhaps for Muon veto Cherenkov counters. Can share infrastructure for water production and discharge with other experiments?

  • Venting: may require emergency capability to safely vent asphyxiating or mildly toxic gases. Similar requirement will exist for large cryo experiments.

Ft. Collins DUSEL Workshop


Germanium Infrastructure (Harry Nelson)

  • 20 m L  10 m W  10 m H (60  30  30 feet)

  • Liquid He and Nitrogen (compressor plant? 100 m2, 1000

    sqft)

  • 100 kVA electrical power

  • 200 m3/minute air flow (6000 cfm)

  • low Radon capability (details need work)

  • 5-ton crane

  • What facilities are in common with the ββ program?

  • (Majorana, Gerda, Genius, CUORE)

Ft. Collins DUSEL Workshop


  • Simulated Santa Barbara (better yet, Isla Vista) beach

  • rest area

Ft. Collins DUSEL Workshop


Dark Matter Sensitivity versus Depth

Dongming Mei & AH, preliminary

Ft. Collins DUSEL Workshop


bb Sensitivity versus Depth

Degenerate

Inverted

Internal BGND

Total Muon BGND

Muons

Muon-Induced Neutrons

Normal

Dongming Mei & AH, preliminary

Ft. Collins DUSEL Workshop


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