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Calibrations Accomplishments in PY03 Plans for PY04. Kurt Woschnagg, UCB L3 lead – 1.5.3 Detector Characterization. Part I – Calibrations in PY03. APPROVED. PY03. Before Pole season: Plan Prepare pressure system drill logging dust logger During pole season: - PowerPoint PPT Presentation
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Calibrations Accomplishments in PY03
Plans for PY04
Kurt Woschnagg, UCBKurt Woschnagg, UCBL3 lead – 1.5.3 Detector CharacterizationL3 lead – 1.5.3 Detector Characterization
Part I – Calibrations in PY03
APPROVED
PY03• Before Pole season:
– Plan– Prepare
• pressure system• drill logging• dust logger
• During pole season:– Geometry for String 21 and IceTop DOMs– Dust logging (talk by Ryan Bay)
• After station closing– Geometry release → database– Timing verification (talk by Dima Chirkin)
– Flasher data (talk by Jim Braun)
• Deployment data– Pressure absolute depth
– Asinine measurements DOM spacing
• Survey– Tanks absolute (x,y,z) for IceTop
DOMs/tanks
– Tower absolute (x,y,z) for string
• Drill data (x,y) variations for DOMs along string
• Put it all together absolute (x,y,z) for DOMs
• Ship to database
Stage 1 geometry calibration
The IceCube Coordinate System
Coordinate axes:
X axis = Grid EastY axis = Grid NorthZ axis = up
(same as in AMANDA)
AMANDA origin
IceCube origin
Easting [ft] 47614.9 46500
Northing [ft] 52585.1 52200
Elevation [ft] 3608.6 2900
XIceCube [m] 339.8 0
YIceCube [m] 117.4 0
ZIceCube [m] 216.0 0
XAMANDA [m] 0 -339.8
YAMANDA [m] 0 -117.4
ZAMANDA [m] 0 -216.0
Origin:Point near geometric center of detector,defined in global coordinates(Easting, Northing, Elevation)
Document in docushare
Asinine measurements
DOM spacing (nominal: 17 m)– Laser ranger– Tape measure (metric)– Pressure data– Payout data→ Two groups with 15:19:15:19 m spacing!?→ All breakouts 34 m apart
Cable bending around DOMs– Tape measure (metric)→ negligible
Well depth– Laser ranger
Locations of gadgets relative DOMs17
60
59
5857
5655
54
53
52
51
5049
4847
46
45
44
19
15
19
1517
17
17
17
19
15
19
1517
17
17
DOM#
1743
d
1st A.M.
B1 B2 B4
T1
T2T4
240’’ 192’’
184’’
156’’
Surveying the 8 corners of the tower
Drill data used for hole profile
Geometry release
Geometry for 60 in-ice DOMs16 IceTop DOMs8 IceTop tanks
released Feb 24, 2005
Coordinates available from database
Each geometry releasecomes with README file
The Dust Logger
Are the dust layers horizontal?
Part II – Plans for PY04
RTFP!
Work Plan for PY04
1.5.3.1 Detector Monitoring
1. Develop & implement monitoring system for in-ice & Icetop
2. Develop code for analysis, user interface, and DB interface
3. Coordinate and start shifts
Ignacio Taboada, “L4”
Kirill Filimonov, Andres Morey
Serap Tilav (IceTop)
See talk by Ignacio Taboada for details
Work Plan for PY04
1.5.3.2 Calibrations (during- and post-deployment)
1. Geometry calibration of all new DOMs
2. Verify timing for all deployed DOMs
3. Verify SPE charge calibration for all deployed DOMs
4. Develop procedure to calibrate multi-PE waveforms
5. Expand & update calibration DB for new calibrations/DOMs
6. Analyze flasher data
7. Analyze pressure data
8. Learn to use IceTop for in-ice calibrations
9. Deploy two dust loggers; analyze data
10. Support design of Standard Candle
11. Deploy Standard Candle; take & analyze data
1.5.3.2.4 Geometry
1. Geometry calibration of all new DOMs
• Deployment dataKurt WoschnaggChuck Rentmeesters, Jack Ambuel
• Drill dataBob Morse, Varun Gopalakrishna
• Surface surveysKurt Skoog, Tim Murray – Raytheon surveyors
• Verify DOM spacing with flasher dataNN
• Interstring geometry with flashers (Stage 2) Start in PY04• Array geometry with muons (Stage 3) Start in
PY04?
1.5.3.2.3 Verification of timing calibration
2. Verify timing for all deployed DOMs
• Various test (see talk by Dima)Dima Chirkin, Spencer Klein, Tom McCauley
• Flasher data: – Look at time differences for neighboring DOM pairs– Take data with all flashers (except top two) on string– Extract time resolutions for individual DOMs
Michelangelo D’Agostino
Chris Wendt, Jim Braun
σi
σk
σik2 = σi
2 + σk2 + σsyst
2
emitter
1.5.3.2.8 Interface to calibration database
5. Expand & update calibration DB for new calibrations/DOMs
• Database exists• First user test successful: geometry →DB→
• Maintain databaseGeorges Kohnen, Philippe Herquet
• Supply calibration constants– Geometry, ice
Kurt Woschnagg– Timing, charge
Dima, Spencer, Tom
1.5.3.2.7 Ice Properties
9. Deploy two dust loggers; analyze data
Ryan Bay, Nathan Bramall, Mike Solarz
Kurt Woschnagg, Buford Price
Build two new dust loggers
Deploy dust loggers
Acquire data during deployment
Analyze data: dust profile (fingerprinting), ash layers, volcanoes
1.5.3.2.6 Energy and vertex resolution
11. Deploy Standard Candle; take & analyze data
UCB: design & buildIgnacio Taboada (lead)Justin Vandenbroucke, Michelangelo D’Agostino, Andres MoreyRyan Bay, Nathan Bramall, Mike SolarzKurt Woschnagg
PSL: calibrate & test
Design Standard Candle laser moduleDesign lab calibration setupBuildCalibrateTestDeploy
Most work under 1.3.1.2.3 Special Devices
Why a Standard Candle?
Flasher: 10 TeV Standard Candle: 100 PeV
► Cherenkov cone sculpting► Calibrated light output► UHE range
PY04 Deliverables (in prelim. work plan)
1. MoniDaemon and MoniAnalysis code release Jul 1
2. Release of monitoring GUI and DB interface Oct 1
3. Monitoring shifts start Jan 1
4. Geometry for new in-ice and IceTop DOMs Mar 15
5. Timing verified for 1st string with muon data Jul 1
6. Timing verified for 1st string with flasher data May 31
7. Charge (SPE) verified for 1st string Jun 15
8. Sample of IceTop-tagged events with deep muons Sep 1
9. Code for energy/vertex calibration of flasher data ???
10. Dust profile and ash layers from dust logger data Mar 31
Using String 18 for IceCube Calibrations
-18
1858?
AMANDA String 18 has DOMs with flashers
Put closest IceCube string (58) within 20-30 m
Use flashers to map angular acceptancebefore and after freeze-in
Learn something about hole ice
String 18 is the only AMANDA string with light sources at everymodule that can be seen by neighboring strings
Unique chance for in-iceacceptance/hole-ice calibration!