Transcript ppt

ISOC/SVAC
Instrument Analysis Meeting, May 12, 2006
Bye Bye LAT
Anders W. Borgland
Science
Verification,
Analysis and
Calibrations
/
ISOC
Last evening!
Anders W. Borgland
1
ISOC/SVAC
Instrument Analysis Meeting, May 12, 2006
Going
Anders W. Borgland
2
ISOC/SVAC
Instrument Analysis Meeting, May 12, 2006
Going ....
Anders W. Borgland
3
ISOC/SVAC
Instrument Analysis Meeting, May 12, 2006
Going .....
Anders W. Borgland
4
ISOC/SVAC
Instrument Analysis Meeting, May 12, 2006
Gone!
Cool truck
over here!
Anders W. Borgland
5
ISOC/SVAC
Instrument Analysis Meeting, May 12, 2006
Reprocessing
• Reprocessing:
– Hope to start reprocessing at the end of next week early next
week!
– Will take at least a week to finish
– I have an RC-1:
– Will debug it over the weekend ......
– With ACD calibrations in the code!
– Finally! You will then get calibrated quantities in your
ntuples.
– Recon.root:
– We will keep the recon.root files for this processing
– Muon hypothesis:
– Will reprocess a subsample using the muon hypothesis
» 10M Vertical + 10M Horizontal enough (Johann)?
– Context information:
– Available in the SVAC ntuple
» Extended GEM counters etc
– Need to write the documentation .....
• Will make MC for all data taking configurations.
Anders W. Borgland
6
ISOC/SVAC
Instrument Analysis Meeting, May 12, 2006
Some Issues With The Data
• Useful things to know about the data quality:
– Linked from the main IA page
– I will add more details:
– Most issues are with the extended counters
• Merit ntuple problem:
– JIRA GRINF-29 January 31:
– Run ID (and also Event ID) are floats in Merit
– Get truncated for data run IDs
– Thought this was fixed in EM, but it slipped through :-(
– Thanks to Bill for discovering this!
– 'Fixed' in GR v9:
– RunID and EventId are here integers
– But not in current EM!
– Emergency solution:
– Make them 'double'
– Will work for the data we took in April/May
– Longer term solution:
– Base EM on GR v9
– Need to get GR to use Uint64_t:
» All extended counters like sequence number (EventID)
are actually 64 bits
Anders W. Borgland
7
ISOC/SVAC
Instrument Analysis Meeting, May 12, 2006
Gone But Not Forgotten!
Anders W. Borgland
8