1. IceCube construction status
Albrecht Karle
PAP/SAC meeting
Madison,
March 1, 2007

2. IceCube 2007: IC22 IceCube array
70+ strings and IceTop stations planned
22 strings and 1320 DOMs installed
26 IceTop stations with 104 DOMs installed

3. 2005, 2006, 2007 Deployments 1+ 9 + 13 = 22 strings to date
AMANDA =
22 strings to date 46 47 48 58 57 66 67 74 65 73 78 56 72
IceCube string deployed 01/05
IceCube string deployed 12/05 – 01/06 21 30 29 40 50 39 38 49 59
IceCube string and IceTop station deployed 12/06 – 01/07
IceCube Lab commissioned
1424 DOMs deployed to date
Next year looking for 14 to 18 strings.
Want to achieve steady state of >= 14 strings / season.

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

5. Drilling and deployment timelines
10 h
36 h

6. Drilling and Deployment cycle
Ice drilling on next hole
begins while previous string
is being secured,
Highly parallelized operation
Lunch break
Identify leak in hose,
Identify, pull back,
Prepare action,
Replace segment,
Drill again*
~10h
Typicallly
~33h
*Simplified description of event
~51 hours/cycle

7. Drill and deployment durations

8. 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!

9. 2006 as built - 2008 preliminary plan
Drill camp 2007/08
Already in place,
Hope to gain 2 holes!
See posters for detailed viewing

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

11. 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.)

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

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

15. Cable production - surface to DOM cables
To date: 54 cables shipped from Ericsson

16. DAQ S/W Status
November 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, begin integration of DAQ at South Pole.
February 21st, 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.

17. 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 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.

18. Neutrino event

20. IceCube Lab (ICL) 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
IceCube Lab (ICL)
Temporary ICL,
Now removed
Independent Firn
Drill

21. On-Ice organization

22. Construction Project orgchart
IceCube International Oversight and Finance Group
NSF, Executive Agent
IceCube Collaboration
IceCube Neutrino Observatory
J. Yeck, Project Director
R. Paulos, Associate Director A. Karle, Associate Director
Engineering & Project Support Science & Instrumentation
Safety and QA Manager, M. Zernick
Logistics Manager, T. Hannaford
Software Coordinator, TBD
Advisory and Oversight Groups
UW Leadership Team
Science Advisory Committee, M. Schaevitz (Chair)
Project Advisory Panel, J. Marx (Chair)
Hot Water Drill Advisory Panel, M. Mulligan (Chair)
A3RI & Project Support R. Paulos
Accounting, N. Odalen
Resource Coordinator, D. Laitsch
E&O, E. Malkus
Human Resources, T. Wipperfurth
IT Support, M. Mueller
KRC Business & PSL Technical Services
F. Halzen
Principal Investigator
Co-Spokesperson
IceCube Collaboration Board
C. Spiering, Spokesperson
Detector Operations
Run Coordinator
A. Goldschmidt
Project Controls
P. Nipko
Engineering
R. Paulos (A)
J. Cavin*
RPSC Support
S. Clapp
Drilling & String
Installation
T. Hutchings
Instrumentation
J. Haugen
Data Acquisition
K. Hanson
B. Edwards
Data Systems
G. Sullivan
Detector
Comm&Verification
D. Cowen
Planning
P. Nipko
Monitoring & Analysis
A. Peles
Change Management
B. Ziegler
Funds & Acct. Interface
L. Riley
Electrical Engineering
P. Sandstrom
Mechanical Engineering
J. Cherwinka
System Testing
A. Laundrie
Software
D. Wharton
South Pole Labs
S. Cantley
Drill
A. Elcheick
System Engineering
J. Cherwinka
String Installation
T. Ham
Optical Modules
J. Haugen
IceTop
T. Gaisser
Cables/Special Devices
J. Baccus
DAQ Hardware
D. Nygren
J. Joseph
DAQ Software
C. McParland
Experiment Control
S. Patton
Data Handling
D. Schneider
Data Filter/Software
E. Blaufuss
Simulations
K. Hultqvist
Verification/Benchmarks
G. Hill
Reconstruction
S. Schlenstadt
Characterization
K. Woschnagg
AMANDA/I3 Integration
T. DeYoung
June 8, 2006
Effective Date
Legend
Project Direction and Reporting
Project Advice and Recommendations
Project Support
(A) - Acting

23. Maintenance & Operations
Orgchart
International Oversight and Finance Group
NSF, Executive Agent
IceCube Collaboration
Collaboration Spokesperson
Collaboration Board
Executive Committee
DRAFT
IceCube Neutrino Observatory
Principal Investigator
Director of Operations
Software Coordination
Education & Outreach
Science Advisory Committee
A3RI & Project Support
Operations Support
R&D
Administrative
Support
Tech Support
Logistics
RPSC
Detector
Operations
Trigger Filter Transmit Board
Science Operations
Computing
Data Center
DESY
MC Production
Europe
Northern Data
Center
Metadata & Database Support
Data Distribution
Data Storage
Software & Data Processing
Data Production
Filtering &
Software Systems
Reconstruction
Software
Online Filtering
Simulation
Data Integrity
Detector Calibration
Data Verification
Offline Filtering Software
Tier 2 Support
Monte Carlo
Offline Data
Run Coordination
Detector Monitoring
Online Processing
DAQ
Detector Hardware
SPS Data Handling
AMANDA
Winter Overs
SPTS
Effective Date

24. IceCube field team January 28, 2007
50 team members on the ice from Oct to early February
30 drillers, 20 technicians and scientists

25. 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.