IceCube construction status

Albrecht Karle

PAP/SAC meetingMadison, March 1, 2007

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IceCube array70+ strings and IceTop stations planned

22 strings and 1320 DOMs installed

26 IceTop stations with 104 DOMs installed

IceCube 2007:IC22

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2005, 2006, 2007 Deployments

AMANDA

IceCube string deployed 12/05 – 01/06

1424 DOMs deployed to date

Next year looking for 14 to 18 strings.

Want to achieve steady state of >= 14 strings / season.

21

3029

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IceCube string deployed 01/05

IceCube string and IceTop station deployed 12/06 – 01/07

IceCube Lab commissioned

1+ 9 + 13 = 22 strings to date

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Hotwater drilling: Trend towards increasingly stable operation continued.Experienced crew

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Drilling and deployment timelines

36 h 10 h

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Drilling and Deployment cycle

Identify leak in hose, Identify, pull back, Prepare action, Replace segment, Drill again*

Ice drilling on next hole begins while previous string is being secured, Highly parallelized operation

*Simplified description of event ~51 hours/cycle

Lunch break

Typicallly

~33h

~10h

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Drill and deployment durations

Drill & Deploy Times

0.010.020.030.040.050.060.070.080.090.0

100.0110.0120.0130.0140.0150.0

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Hole Number (of season)

Time (h)

Deep Drilling Time Deployment TimeWorking Time Between Holes Total Time Between Holes

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Independent firn drill Based on electrical power (150 kW), eliminates

need of EHWD for firn drilling. Successfully used for three holes. Expected to

save about 12 to 15 h per drill cycle - 2 holes per season!

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2006 as built - 2008 preliminary plan

See posters for detailed viewing

Drill camp 2007/08 Already in place, Hope to gain 2 holes!

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Experienced field team deals very well with issues and harsh conditions.

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IceTop – the Surface Airshower Detector

26 stations deployed All tanks (160+) built. Freezing process improved due to

better insulation. Continue with successful

deployment. Strategy: continue to stay a few

stations ahead of the string installation (max 18 next season.)

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QuickTime™ and aMotion JPEG OpenDML decompressor

are needed to see this picture.

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» 13 «Primeminister of New Zealand, Helen Clark and the Director of the NSF, Dr. Arden L. Bement visit the South Pole, signing a DOM.

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DOM production

Production on track on all sites ~1450 DOMs built today 540 DOMs in McMurdo or at South Pole at present.

IceCube DOM Integration PY5 (April, 2006 to March, 2007) - Plan vs. Actual

0

200

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4/8/20064/22/2006

5/6/20065/20/2006

6/3/20066/17/2006

7/1/20067/15/20067/29/20068/12/20068/26/2006

9/9/20069/23/200610/7/200610/21/200611/4/200611/18/200612/2/200612/16/200612/30/20061/13/20071/27/20072/10/20072/24/20073/10/20073/24/2007

Week ending

Quantity of DOMs ready for DFL

DOMs ready for DFL @ PSL - cumulative plan

DOMs ready for DFL @ DESY - cumulative plan

DOMs ready for DFL @ Swed - cumulative plan

DOMs ready for DFL - cumulative plan all sites

DOMs ready for DFL - cumulative actual all sites

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Surface to DOM Cable Assembly 2006 - 08 Production

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1/7/20063/7/20065/7/20067/7/20069/7/200611/7/20061/7/20073/7/20075/7/20077/7/20079/7/200711/7/20071/7/20083/7/20085/7/20087/7/20089/7/200811/7/2008

Week Ending

# of Cable Assemblies

PLAN - Totalqty departedfrom Ericsson

PLAN - Totalqty arrived atSea Con

PLAN - Totalqty departedSea Con

ACTUAL -Total qtydeparted fromEricsson

ACTUAL -Total qtyarrived at SeaCon

ACTUAL -Total qtydeparted SeaCon

Deliver 18 Cables to PH by 11/15/07

Deliver 12 Cables to PH by 11/15/08

Order for addl Surf to DOM Cables to continue to 80 strings must be placed by 1/1/08

Cable production - surface to DOM cables

To date: 54 cables shipped from Ericsson

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DAQ S/W Status

November 2006 - project adopts plan for DAQ S/W streamlining: Goals:

Simplification and streamlining Allow for lower maintenance budget, less complexity, minimize need for CS

professionals in DAQ Improve accessibility for scientists.

January 29th, 2007 - begin integration of DAQ at South Pole. February 21st, 2007 - SPS closed. 22 in-ice strings, 26 IceTop stations,

and AMANDA detector integrated into DAQ.

Improvements Code is simpler - 117k lines of Java / 15k Python as compared to > 300k

lines of Java before. Less computing hosts (save 9 hosts ~ 1 plane of fuel/year) Configuration server system is simple and flexible: No more need for separate testing framework. (Each developer can run

DAQ on a laptop for development work.) Turn-around time is very fast as compared to previous system: 30 s for

complete deploy and start-up to running state as compared to 10 min. This enables quick edit-compile-debug looping.

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Issues / TODO

pDAQ is not in stable running at Pole with 22 strings I/O system from rDAQ is suspected as not being able to keep up to

rate of hits at InIceTrigger component. A rewrite is underway but was not completed prior to close of Pole. Estimate 10-15 days to resolve.

Data is still being taken in HLC (hard local coincidence triggering on the DOM) / engineering format. Events are big. Need to get compressed hit formats working to

reduce event volume by factor of 3-5x then work on bringing up isolated hits.

Support for flasher board calibration runs pending.

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Neutrino event

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•IceCube lab commissioned, •South Pole computing system (SPS), all racks and infrastructure installed,•64 bit implemented on SPS and SPTS,•About 10 racks of computers and hubs. •Working simulation, exp control, PnF

Temporary ICL, Now removed

IceCube Lab (ICL)

Independent Firn Drill

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On-Ice organization

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IceCube International Oversight and Finance GroupNSF, Executive Agent

IceCube Collaboration

IceCube Neutrino ObservatoryJ. Yeck, Project Director

R. Paulos, Associate Director A. Karle, Associate DirectorEngineering & Project Support Science & Instrumentation

Safety and QA Manager, M. ZernickLogistics Manager, T. Hannaford

Software Coordinator, TBD

Advisory and Oversight Groups

UW Leadership TeamScience Advisory Committee, M. Schaevitz (Chair)Project Advisory Panel, J. Marx (Chair)Hot Water Drill Advisory Panel, M. Mulligan (Chair)

A3RI & Project SupportR. Paulos

Accounting, N. OdalenResource Coordinator, D. LaitschE&O, E. MalkusHuman Resources, T. WipperfurthIT Support, M. MuellerKRC Business & PSL Technical Services

F. HalzenPrincipal Investigator

Co-Spokesperson

IceCube Collaboration BoardC. Spiering, Spokesperson

Detector OperationsRun CoordinatorA. Goldschmidt

Project ControlsP. Nipko

EngineeringR. Paulos (A)

J. Cavin*

RPSC SupportS. Clapp

Drilling & StringInstallationT. Hutchings

InstrumentationJ. Haugen

Data AcquisitionK. HansonB. Edwards

Data SystemsG. Sullivan

DetectorComm&Verification

D. Cowen

Electrical EngineeringP. Sandstrom

Mechanical EngineeringJ. Cherwinka

System TestingA. Laundrie

SoftwareD. Wharton

South Pole LabsS. Cantley

DrillA. Elcheick

System EngineeringJ. Cherwinka

String InstallationT. Ham

DAQ HardwareD. NygrenJ. Joseph

DAQ SoftwareC. McParland

PlanningP. Nipko

Monitoring & AnalysisA. Peles

Change ManagementB. Ziegler

Funds & Acct. InterfaceL. Riley

Experiment ControlS. Patton

Data HandlingD. Schneider

Data Filter/SoftwareE. Blaufuss

SimulationsK. Hultqvist

Verification/BenchmarksG. Hill

ReconstructionS. Schlenstadt

CharacterizationK. Woschnagg

AMANDA/I3 IntegrationT. DeYoung

Optical ModulesJ. Haugen

IceTopT. Gaisser

Cables/Special DevicesJ. Baccus

Legend

Project Direction and ReportingProject Advice and RecommendationsProject Support

(A) - Acting

June 8, 2006

Effective Date

Construction Project orgchart

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Maintenance & OperationsOrgchartDRAFT

International Oversight and Finance GroupNSF, Executive Agent

IceCube CollaborationCollaboration Spokesperson

Science Advisory Committee

A3RI & Project Support

IceCube Neutrino ObservatoryPrincipal InvestigatorDirector of Operations

Software CoordinationEducation & Outreach

Operations Support

R&D

AdministrativeSupport

Tech Support

Logistics

RPSC

Science Operations

Computing

Data CenterDESY

MC ProductionEurope

Northern DataCenter

Metadata & Database Support

Data Distribution

Data Storage

Software & Data Processing

Data Production

Filtering &Software Systems

ReconstructionSoftware

Online FilteringSoftware

SimulationSoftware

Data Integrity

Detector Calibration

Data Verification

Offline Filtering Software

Tier 2 Support

Monte Carlo

Offline Data

Collaboration Board

Executive Committee

Detector Operations

Trigger Filter Transmit Board

Effective Date

Run Coordination

Detector Monitoring

Online Processing

DAQ

Detector Hardware

SPS Data Handling

AMANDA

Winter Overs

SPTS

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IceCube field teamJanuary 28, 2007

50 team members on the ice from Oct to early February 30 drillers, 20 technicians and scientists

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Summary

Experience from last year: Drill system capable of sustained operation at high

rate for entire season Digital optical module is manufacturable in large

quantities and is robust: >1400 DOMs in the ice. DOM Survival rates are very good.

The 22 strings and 26 surface stations in operation. Surface DAQ SW revised; confident to reach stable

operation with 22 strings soon. The detector and data system is being exercised end to

end. String deployment plan: plan 14, up to18 strings next

year. Looking to reach target of 75+ strings. Detector is ready for operations.