AmandaIceCube Integration

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Amanda/IceCube Integration Christian
Spiering DESY
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Links
Data Handling 1.4.1
DAQ Software 1.3.4
Data Filtering and S/W 1.4.2
Amanda Integration 1.5.4
Simulation 1.4.3
Verification 1.5.1
Reconstruction 1.5.2
Data Analysis
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Basic Idea
First year Amanda as calibration tool for early
IceCube strings 1-4 Later First 15-25 IceCube
strings Amanda form a combined detector much
more powerful than either alone. ? huge added
value in 2006 and 2007 !! Finally Amanda as
high density nested sub-array with considerably
lower energy threshold than the full IceCube
detector and capabilities much beyond Amandas
alone.
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Nested Amanda - physics example 1 Neutrinos from
WIMPs in Sun (low energy, close to horizon!)
?
??
With IceCube veto, Amanda can look above horizon,
even ar low energies !
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Nested Amanda - physics example 2 Identification
of cascades with E lt 100 TeV
?e or ??
IceCube allows for better separation from
brems-showers along HE muons. Only with the
IceCube veto, Amanda develops its full power for
low-energy cascades.
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Some arithmetics
Photocathode light collection area of 18 deep
Amanda strings corresponds to 7 IceCube
strings !
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Integration Plan

• July 12, 2004 Draft Integration Plan
• Focused to time synchronization (schedule
  priority!)
• Reviewed by Project Office end of June with
• proposals for change
• Discussion of option for synchronization in
• July
• - Decision to make only use of GPS information in
• Amanda and IceCube data respectively
• More discussion here in Uppsala
• New draft to A/I -WG next month

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Simulation and Reconstruction

• Simulation of Ice4/A, Ice16/A has started.
• - Mike Walter (DESY)
• - Pat Toale (PSU)
• - Paolo Desiati (UW)
• IceTray (IceRec) can handle Amanda strings
• 2005
• - Ice4/A combined events no on-line
  synchronization.
• Therefore either compare separate events in Ice4
• and Amanda (angle, impact point, ...) or
  implement
• time offset as fit parameter in muon reco
  (will that work?)
• - Light sources for calibration

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Time Synchronization
Reminder Bommerholz Options Option 1 Amanda
sends its DMADD trigger signal to IceCube,
IceCube handles this like one additional
DOM Option 2 IceCube sends a GPS signal to
Amanda, Amanda writes this as additional
information to its own GPS information
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Synchronization using DMADD
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Synchronization Masterclock
ExacTime ET6000 GPS Clock(s)
Master Clock Unit
Slaved Rubidium Oscillator Inside, lt 1x10-11
Allan Var.
Serial
Fan Out
Balanced Drivers
1pps
10 MHz
DRIVER
DOM Hub
90 DOM Hubs
Equal Length Twisted Pairs 10 MHz, 1pps,
RS-232 Cat5E with RJ-45s
DOM Hub
DOM Hub
DOM Hub
DOM Hub
AMANDA
GTPrzybylski LBNL 6/8/2004
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Since Bommerholz ...
... it became clear

• Tight Pole schedule ? move
• integration activities at Pole to
• season 05/06 (except of TWR work)
• No electrical connection between
• MAPO and IceCube counting House

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Synchronization 2005/06 and later

• No use of DMADD (ceases 05/06 or 06/07)
• Use both
• 1) Synchronization signal Amanda
• ? IceCube (DOM
  MB)
• 2) GPS signal IceCube ? Amanda
• ... new GPS with
• more functions ?

S with 100 nsec accuracy
S with 5 nsec accuracy
S
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Synchronization 1
3100 GPS TWR TWR
Amanda GPS
GPS Fan-Out
Synch Pulse
PPS1
PPS1-10MHz-TST
Fan-Out
IceCube
DOR
DOM MB
opt?el
el?opt
MAPO
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Synchronization 2
GPS GPS TWR TWR
Amanda GPS
GPS Fan-Out
PPS1
PPS1-10MHz-TST
MAPO
IceCube
GPS Fan-Out
IceCube GPS
opt?el
el?opt
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Trigger and Event Building
Amanda
Satellite
Amanda Array Processor
Event Builder
Reco
String Processor
Tape
Event builder Cluster
Network
Global Trigger
Network
PF
Satellite
Tape
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Trigger and Event Building
Amanda
Satellite
Amanda Array Processor
Event Builder
Reco
String Processor
Tape
Event builder Cluster
This part will be closed eventually
Network
Global Trigger
Network
PF
Satellite
Tape
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TWR Software Trigger

• - Indispensable for Amanda integration
• - Coming season Installation of TWR
• software trigger in Amanda
• huge data volume 60 MB /second
• time for trigger formation 2-4 sec
• challenging ! Manpower at (hopefully not
• below !) absolute lower limit (asked for 6,
• obtained only 3.5 time slots)
• (Wagner, Ackermann, Messarius,
  Münich)

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Next Year Synchroniation, Trigger, Merge-Reco
Amanda
Satellite
Amanda Array Processor
Event Builder
Reco
String Processor
Tape
Event builder Cluster
Global Trigger
PF
Satellite
Tape
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Next months priority

• TWR s/w trigger at Pole
• Intensify dicussions and coordination in
• A-I integration Working Group
• - Simulation of Ice4-A (Ice16-A)
• Software to merge Ice4 data with Amanda
• data at NH, implement all fits, relate
  calibration
• information for both detectors
• Try to use of light cross calibration signals in
  
• IceCube, as well as coincident muons, to
• determine time offsets.

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Integration Working Group

• Data ProcessingReco
• - Eric Blaufuss (UM)
• - Ty deYoung (UM)
• Stefan Schlenstedt (DESY)
• Darryn Schneider (UW)
• Simulation
• Paolo Desiati (UW)
• Mike Walter (DESY)
• Pat Toale (PSU)
• Tonio Coarasa (PSU)
• Klas Hultqvist (Stockh.)
• Monitoring
• Ignacio Taboada (Caracas/
• UCB)
• Calibration
• - Kurt Woschnagg (UCB)

• TWR software trigger
• Wolfgang Wagner (Dortm.)
• Timo Messarius (Dortm.)
• K-H Becker (Wupp)
• Synchronization
• Jerry Przibylski (LBNL)
• Dave Nygren (LBNL)
• Holger Leich (DESY)
• R.Wischnewski (DESY)
• Wolfgang Wagner (Dortm)
• Timo Messarius (Dortm)
• Trigger
• - Pat Toale (PSU)
• Toni Coarasa (PSU)