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Lower Campus

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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  1. Lower Campus Harry Nelson UCSB HUSEP Ft. Collins Nov. 19, 2005

  2. 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

  3. Clean Areas Overpressure – (all Class 2000)  H2S – air scrubbed (From Frasier Duncan) Ft. Collins DUSEL Workshop

  4. 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

  5. Xenon Infrastructure (Hanguo Wang) Ft. Collins DUSEL Workshop

  6. 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

  7. 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

  8. Simulated Santa Barbara (better yet, Isla Vista) beach • rest area Ft. Collins DUSEL Workshop

  9. Dark Matter Sensitivity versus Depth Dongming Mei & AH, preliminary Ft. Collins DUSEL Workshop

  10. 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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