Science Advisory Committee

March 30, 2006

Jim YeckIceCube Project Director

IceCube Construction Progress

IceCube Neutrino ObservatoryProject Status—March 29, 2006

South Pole Station

IceCube Drill Site IceCube Counting House

•272M$ International Project •242M$ NSF MREFC • Construction start FY 2002 •Completion Planned FY 2010 (?)

•Operations Estimate ~10M$/yr

1400m

2400m

USA (14)USA (14)

Europe (15)Europe (15)JapanJapan

New ZealandNew Zealand

• Alabama University, USA• Bartol Research Institute, Delaware, USA• Pennsylvania State University, USA• UC Berkeley, USA• UC Irvine, USA• Clark-Atlanta University, USA• University of Alaska, Anchorage, USA• Univ. of Maryland, USA

• Alabama University, USA• Bartol Research Institute, Delaware, USA• Pennsylvania State University, USA• UC Berkeley, USA• UC Irvine, USA• Clark-Atlanta University, USA• University of Alaska, Anchorage, USA• Univ. of Maryland, USA

• IAS, Princeton, USA• University of Wisconsin-Madison, USA• University of Wisconsin-River Falls, USA• LBNL, Berkeley, USA• University of Kansas, USA• Southern University and A&M College, Baton Rouge, USA

• IAS, Princeton, USA• University of Wisconsin-Madison, USA• University of Wisconsin-River Falls, USA• LBNL, Berkeley, USA• University of Kansas, USA• Southern University and A&M College, Baton Rouge, USA

• Universite Libre de Bruxelles, Belgium• Vrije Universiteit Brussel, Belgium• Université de Mons-Hainaut, Belgium• Universiteit Gent, Belgium• Humboldt Universität, Germany• Universität Mainz, Germany• DESY Zeuthen, Germany• Universität Dortmund, Germany

• Universite Libre de Bruxelles, Belgium• Vrije Universiteit Brussel, Belgium• Université de Mons-Hainaut, Belgium• Universiteit Gent, Belgium• Humboldt Universität, Germany• Universität Mainz, Germany• DESY Zeuthen, Germany• Universität Dortmund, Germany

• Universität Wuppertal, Germany• MPI Heidelberg, Germany • Uppsala university, Sweden• Stockholm university, Sweden• Imperial College, London, UK• Oxford university, UK• Utrecht university, Netherlands

• Universität Wuppertal, Germany• MPI Heidelberg, Germany • Uppsala university, Sweden• Stockholm university, Sweden• Imperial College, London, UK• Oxford university, UK• Utrecht university, Netherlands

• Chiba university, Japan• University of Canterbury, Christchurch, NZ

• Chiba university, Japan• University of Canterbury, Christchurch, NZ

ANTARCTICA

The IceCube Collaboration

Scientific Goals

To detect cosmic neutrinos from the sources of the cosmic rays

Active Galactic Nuclei? Supernova remnants ? Gamma Ray Bursts ? ?

Search for neutrinos from dark matter annihilations Neutrino properties The unknown (a new window to the Universe)

Scope

Implementation• Logistics, Drilling, Deployment, RPSC Deployment Support

Instrumentation• DOM Production, IceTop, Cables

Data Acquisition• Hardware and Software

Data Systems• Simulations, Data Handling and Filtering, Experiment Control

Detector Commissioning & Verification• Verification, Reconstruction, Characterization, and AMANDA Integration

19 strings with 677 optical modules

Completed 2000

-

First 10 strings AMANDA-B10

Took data 1997-1999

AMANDA Telescope

IceCube Neutrino Observatory

IceTop air shower array70+ pair of ice Cherenkov tanks

IceCube70+ strings with 60 optical modules17 m between optical modules125 m between strings1 Gton detector

IceCube March 2006

Construction Strategy

• Maximize the amount of IceCube instrumentation that can be safely installed at the South Pole in each austral summer season

– Installation should not be limited by the availability of instrumentation– Critical path is the drilling of holes

• Construction schedule constraints:– South Pole construction season limited to the austral summer and often impacted by weather conditions– Limits on the number of flights to the Pole (cargo space)– Limit on the number of people that can be supported at the pole

FY06 Population Averages Planned ActualTotal Population 251 238Total RPSC 175 163

Sustaining Population 70 70Project Population 105 93

IceCube 41 40Science 20 17Technical Support 10 13

** Average population is based on the 101 peak working days of the summer season (31 Oct - 8 Feb) and does not include the opening and closing weeks.

South Pole Population 05/06

Project Management and Oversight

ExternalAnnual Baseline and Progress ReviewsInternational Oversight and Finance Group

InternalAnnual Project Advisory Panel MeetingsMonthly Status MeetingsWeekly Technical Board and Level 2 Management MeetingsWeekly Coordination Meetings with NSF and Raytheon

10” PMTHamatsu-70

33 cm

10” PMT Hammatsu

IceCube Digital Optical Module (DOM)

Flasher board

Main board

IceTop:ice tank

Hot-water drilling

Hose reel Drill tower

IceTop tanksHot water generator

String cable 2500 m

Weight ~6 tons

Drilling

ICECUBE

2450 m

AMANDA

AMANDA String 19 & IceCube Drilling

Deployment Dates 2005/2006

String Installation DatesString Position Finish Date Time (days)

1 Hole # 29 12/26/05 162 Hole # 39 01/04/06 83 Hole # 38 01/09/06 54 Hole # 30 01/14/06 55 Hole # 40 01/18/06 46 Hole # 50 01/22/06 47 Hole # 59 01/26/06 48 Hole # 49 01/29/06 3.5

IceCube DOM, Cable and Tank Production CY2004 - CY2008 for 76 strings installed

0

10

20

30

40

50

60

70

80

90

7/24/20049/24/200411/24/2004

1/24/20053/24/20055/24/20057/24/20059/24/200511/24/2005

1/24/20063/24/20065/24/20067/24/20069/24/200611/24/2006

1/24/20073/24/20075/24/20077/24/20079/24/200711/24/2007

1/24/20083/24/20085/24/20087/24/20089/24/200811/24/2008

1/24/20093/24/20095/24/20097/24/20099/24/200911/24/2009

1/24/20103/24/20105/24/20107/24/20109/24/201011/24/2010

1/24/2011

Week ending

Equivalent InIce strings

Strings installed in ice at Pole

IceTop Tanks

Cable

Systems

DOMs

IceTop stations

installed

14

10

SJB's

ICL Cable support

Still need to add production plans

for string devices and IceTop

cable support - 1/20/06

IceCube Neutrino Observatory

Contingency % of ETC

32.5%

0.0%

10.0%

20.0%

30.0%

40.0%

Feb-04 Mar-04 Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05 Oct-05 Nov-05 Dec-05 Jan-06

Annual

Baseline

Replanning

Contingency Experience

Summary

AMANDA accumulating data for the 7th year

One year of experience with the first IceCube string

String deployment speed reached expectations

Verifications of the new IceCube strings in progress

More PMT-cathode area in IceCube than in AMANDA

Deployed IceCube strings already larger than AMANDA

IceCube on track towards a 1 km3 neutrino telescope!

DOM Deployment

Drilling

Manufacturing

Logistics

Collaboration

Events

First IceCube String Deployed—All DOMs Working—Events Detected