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Deep Underground Science Deep Underground Science & Engineering Laboratory& Engineering Laboratory

Dr. Ed SeidelAssistant Director

Mathematical and Physical SciencesNational Science Foundation

October 1, 2010

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Outline

DUSEL Scientific Promise and Project Status

International opportunities

Timelines and key decision points

Camland Project, Japan

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Deep Underground Science and Engineering Laboratory (DUSEL)

Davis CavernSep 21, 2009

DUSEL is being envisioned as a unique, dedicated international underground education & research facility that would support potentially transformational experiments in multiple disciplines

The U.S. particle, nuclear, and astrophysics communities have selected DUSEL as central to their national programs

The engineering, geology and biology communities are proactively engaged, and participate in all aspects of DUSEL planning

Development focused on the former Homestake Gold Mine (Lead, SD), the deepest mine in North America

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Cosmic Questions for DUSEL

Dark Matter searches

Long Base Line Neutrino Experiment & Proton Life time

Double Beta Decay Experiments

Homestake Homestake – Home to – Home to the Davis the Davis Detector Detector (Nobel (Nobel Prize, Prize,

Physics, Physics, 2002) 2002)

Raymond Davis, Jr.

Of what is the Universe made? What is Dark Matter?

What are neutrinos telling us? Are protons unstable?Where did the antimatter go?How did the Universe evolve?

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(Excludes large cavities)

Worldwide Underground ResearchWorldwide Underground Research

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Proposed Science in DUSEL Four main pillars of

emerging national physics program Long Baseline ν experiment Proton Decay ββ decay Dark Matter

Other programs (list growing as possibilities become known) New capabilities in nuclear

and neutrino astrophysics Research in geology,

chemistry, biology, atmospheric sciences!

55 m

60

m

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NSF/DOE agreed to establish DUSEL Physics Joint Oversight Group (JOG) immediately after release of P5 report (May 2008).

Will jointly coordinate & oversee DUSEL experimental physics program. JOG meeting bi- monthly. Both agencies closely collaborating in defining and realizing the DUSEL

physics program. Agencies have agreed on DUSEL stewardship roles & core research

program:

NSF/DOE Collaboration

Interagency MOU planned for end of

FY 2010.

Program Element Steward Co-sponsor

DUSEL facility NSF

Dark matter NSF DOE OHEP

Neutrino-less double-beta decay DOE ONP NSF, DOE OHEP

Long baseline neutrinos DOE OHEP NSF

Proton decay DOE OHEP NSF

Other disciplines (Bio, Geo, Eng) NSF

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International Opportunities Open Global Laboratory

NSF would steward DUSEL for the world community Experiments and collaborations welcome International partners assume only incremental costs

Infrastructure investment already made Network of similar labs around the world?

Coordinated, distributed global program

Cooperative stewardship model For multi-component scope (not, e.g., ITER) Well defined “steward” – “co-sponsor” roles Well defined extent of risk Extend “JOG” concept as appropriate

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Summary

DUSEL Scientific Promise and Project Status Potentially transformational; over a decade in planning Solid technical trajectory towards Preliminary Design Review in

early 2011 Timelines and key decision points

Establish baseline late 2011 Final Design Review mid-2013? Construction start 2014?

International Opportunities Partners in facility definition; Partners in discovery Broad scientific scope

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Back-up

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Community Planning Activities & Reports Community Activities, Advisory Committee Reports

Bahcall Report (2001) Nuclear Science Advisory Committee (NSAC) Long-Range Plan (2002) International Workshop on Neutrinos and Subterranean Science (NESS, 2002) High Energy Physics Advisory Committee (HEPAP) Long-Range Plan (2003) EarthLab (2003) DOE 20-yr. Facility Plan (2003) The Neutrino Matrix (Four APS Divisions, 2004) Quantum Universe – The Revolution in 21st Century Particle Physics (2004) Deep Science (2006) The Frontiers of Nuclear Science: A Long Range Plan (2007), Nuclear Science Advisory

Committee (NSAC). Particle Physics Project Prioritization Panel (P5): A Strategic Plan for the Next

Ten Years (2008) National Research Council, National Science and Technology Council Reports

Connecting Quarks to the Cosmos (2003) Neutrinos and Beyond (2003) Physics of the Universe – A Strategic Plan for Federal Research at the Intersection of

Physics and Astronomy (2004) Revealing the Hidden Nature of Space and Time (EPP2010, 2006) NSF/DOE commissioned a new NRC study to be completed early 2011.

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Project Status: Facility Design:

Design team at UC Berkeley and SD School of Mines has been completed and is making good progress on the preliminary design.

Experiments Design: Multiple collaborations have been formed (S4 awards) composed of

University and National lab teams to design a set of world class experiments for DUSEL lab.

Sanford Lab: Significant progress in dewatering 4850 Level infrastructure restoration underway

Safety Culture: Project team and Sanford Lab. developing a safety culture to allow for

a world class safe Laboratory. Preliminary Design expected end of CY 2010

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Far Detector – Water Cerenkov (WC)1. Large detectors 100 K-ton

2. Plan for at least 2 detector Equivalent3. “conventional technology” – 50,000K PM /

Detector.4. Gadolinium? N-detection

1. Signal to Background2. Energy Resolution

3. Large Cavity – LCAB agrees the rock at Sanford Lab is good.

4. Cost and time for excavation

DUSEL – Cavity Design

Kamiokande Det.

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Liquid Argontime projection chambers

(modern day bubble chambers)

1)Large TPC2)Containment Vessel Design3)Safety Issues 4)Cold Electronics Readout5)Superior Signal to Noise6)Cost competitive

d

d

p

p

Ion ization electrons paths

Drift

ion izing trackPassing chargedparticle ionizes

the Argon.

Ionization electrons drifted

to the detector edge

Ionization electronsdrift through

readout electrodesso charge is

induced/collectedon electrodes

Far Detector – LAr