1. ALICE Status 4th CERN-Korea meeting
Korean participation
ALICE
November 2008
CERN-Korea J. Schukraft

2. Korean Participation in ALICE
Participating Groups:
Kangnung:
TOF assembly & commissioning, physics
Sejong:
Grid computing, physics
Kisti:
ALICE Korea Tier-2
Since April 2008
Yonsei:
TRD assembly and commissioning, physics
Pusan (replacing Pohang)
Physics
Activity Report by Dr. Y. W. Baek
April 08 CERN-Korea J. Schukraft

3. Collaboration News Elections/Nominations New Institutes since April
Houston (USA) EMCAL, Computing
Institutes leaving
BARC Mumbai (India) leaving ALICE
associate member, completed its technical contribution to the PMD electronics
Ongoing discussions
Comsats, Pinstec (Pakistan) Physics, computing
Elections/Nominations
Spokesperson: JS re-elected until end 2010
Deputy Spokesperson, P. Kuijer (NIKHEF/Utrecht), 2 years ( )
Resource Coordinator: C. Decosse (CERN) starting
April 08 CERN-Korea J. Schukraft

4. ALICE Set-up TOF TRD HMPID ITS PMD PHOS Muon Arm TPC Korea:
Detector:
Size: 16 x 26 meters
Weight: 10,000 tons
TOF
TRD
HMPID
ITS
PMD
PHOS
Korea:
- TOF - TRD - Computing
- Physics
Muon Arm
Collaboration:
> 1000 Members > 100 Institutes > 30 countries
ALICE Set-up
TPC
April 08 CERN-Korea J. Schukraft

5. ALICE Detector Installation mid 2008
Complete:
ITS, TPC, TOF, HMPID,
FMD, T0, V0, ZDC,
Muon arm, Acorde
Partial installation:
1/5 PHOS
4/18 TRD
9/48 PMD
0/6 EMCAL
~ 40% DAQ/HLT
ALICE Status
Installation targets met by mid 2008
April 08 CERN-Korea J. Schukraft

6. 24 April: Insertion of final TOF super module
April 08 CERN-Korea J. Schukraft

7. Installation of final muon chamber
April 08 CERN-Korea J. Schukraft

8. Installation 1st PHOS module
April 08 CERN-Korea J. Schukraft

9. Formal end of ALICE installation July 2008
April 08 CERN-Korea J. Schukraft

10. Data Taking & Commissioning
Comissioning runs (24/7)
Cosmics I (2 weeks, Dec 2007)
local (individual detectors) and start of global (several detectors) commissioning
Cosmics II (3 weeks, Febr/Mar 2008)
local/global commissioning, first few days of alignment ‘test’ run, magnet commissioning
Cosmics III (since May 2008 continuous operation 24/7)
global commissioning, calibration & alignment production runs
Injection tests
TI2 dump in June , injection tests August, first circulating beam September
observed very high particle fluxes during dumps and even during injection through ALICE
10’s to 1000’s of particles/cm2 with beam screens in LHC and/or TI2
decided to switch off all sensitive detectors during injection
April 08 CERN-Korea J. Schukraft

11. Injection tests SPD hits versus bunch intensity (beam through ALICE)
FMD event display
(1 bunch through ALICE, > hits)
FMD hits versus SPD hits
(beam through ALICE)
SPD/SSD, Sunday, 15.6
Dump on TED
April 08 CERN-Korea J. Schukraft

12. First beam 10th September
SPD hits on , shortly after 9 am
V0 hits on , shortly after 9 am
April 08 CERN-Korea J. Schukraft

13. Luminosity monitor (V0)
Double turn, beam 1 back at point 2 !
Single turn
April 08 CERN-Korea J. Schukraft

14. First interactions 12th September
Circulating beam 2:
stray particle causing an interaction in the ITS
ITS tracks on
7 reconstructed tracks, common vertex
April 08 CERN-Korea J. Schukraft

15. TPC Commissioning TPC up and running since end 2007
chamber+FC, gas system, cooling, FEE, Laser, DCS, DAQ, HLT,…
noise reduction: modify PS (some occasional excess noise remains in outer parts)
TDR: s ~ 1
measured:
April 08 CERN-Korea J. Schukraft

16. TPC Performance First preliminary results from cosmics
Momentum
Resolution
(uncalibrated)
First preliminary results from cosmics
dE/dx resolution (PPR goal: ~ 5.5%)
< 6%
pt resolution (PPR goal: ~ 10 GeV)
~ 10 GeV w/o calibration
Particle
Identification
April 08 CERN-Korea J. Schukraft

17. Planning Until mid October Medium term (until LHC restart spring 2009)
continue cosmic running & consolidation of online software for ~ 3 weeks
Medium term (until LHC restart spring 2009)
‘shutdown mode’, start with activities planned for winter shutdown
re-arrange cabling on mini-frame (ITS,TPC) to allow better access to electronics
major activity, requiring > 4 months of work both underground & surface
detector consolidation TPC capacitors; recover some ITS modules, improve SPD cooling, …
detector installation (TRD, PHOS, PMD, EMCAL), …
3 PHOS, 8 TRD modules, 2 EMCAL modules, complete PMD
Long term: complete detector
PMD (2008), DAQ/HLT(2009),TRD (2009), PHOS (2010/11), EMCAL (2010/11)
April 08 CERN-Korea J. Schukraft

18. 2009 Construction Budget

19. Kangnung/Sejong: fully paid: 100 k
Common Fund, C&I Contributions
Unit: kCHF
Cutoff date: 30 October 2008
*) Modified by MoU Addendum
**) Balance = Funds received - Funds due
Institute Fee:
Kangnung/Sejong: fully paid: 100 k
Yonsei: 17 k paid, 33 k in 2008/9
June 26, 2018 19 19

20. M&O A: M&O cat. A invoices/income 2002 - 2008 closing date: 30.10.08
‘02-’08: fully paid
(CHF)

21. PhD & equivalent survey 200921 21

22. Invoices/Contributions 2009
Unit: CHF
Closing date:
M&O A:
2009 invoice:
Korea KICOS: 78.7 k CHF (forecast: 78.9)
Korea Yonsei: 26.2 k CHF 22 22

23. M&O B
M&O MoU:
“For Category B, the cost shall be shared by the Funding Agencies
and Institutes concerned in a manner that the Collaboration shall
propose to the RRB”

24. 2009 M&O B sharing (kCHF)

25. Summary Installation: Commissioning and initial calibration/alignment
met all installation goals by mid 2008
Commissioning and initial calibration/alignment
went rather well, sometimes even better than expected (e.g. TPC, SPD alignment + trigger)
some (mostly minor) hickups / problems (noise, lost channels) / bug fixing
to be improved:
access to TPC for repairs/FEE exchanges
cooling flow of SPD
Detector performance
better – within - very close to specs (at least as far as could be verified with cosmics)
12/11/ th RRB J. Schukraft