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Back to: [BABAR] [Computing] [Online | Meetings] [ Calibration HN] [DataFlow] [OEP] [Prompt Reco] [Online DBs] [Conditions DB]

BABAR Online Calibration

The Online Calibration effort is primarily focused on the category of calibrations to be performed under dedicated running conditions with controlled stimuli provided to detector subsystems. These calibrations will be carried out in a combination of the DataFlow and Online Event Processing (OEP) subsystems of the online.

Some of the work in progress is also relevant to other online calibration issues, such as calibrations using normal physics data performed in the online upstream of Prompt Reconstruction, and even calibrations performed in Prompt Reconstruction or "offline" if their results are required to be fed back upstream into the online (e.g., constants used in the Level 3 trigger).

The focus of this page at this time is the preparation for online calibration operations under Online Test Stand Release 3 in early 1998 using the software framework described below. As the software is further developed and refined, updates will be made available on this page. Please watch the Calibration HyperNews group for announcements.

The current version of the calibration documentation is available as:

  • The BABAR Calibration System, 9 July 1998 draft HTML | PS [current active copy PDF | PS | HTML ]

See also:


Next calibration phone meeting: Monday 19 April 1999


Materials from previous online calibration phone meetings:

Monday 8 February 1999

Special calibration-related phone meeting: Thursday 4 February 1999

"File-based download and configuration scheme"

25 January 1999

"Database changes, online changes, download"

1998:

5 October 1998 (last 1998 calibration meeting)

"Datastream calibration" API in Prompt Reco

21 September 1998

"Core software changes"

(No meeting 7 September 1998 - Labor Day)

24 August 1998 meeting cancelled

10 August 1998

"Prompt Reconstruction datastream calibrations"

27 July 1998

"Updated calibration documentation, new fitting tools"

There was a calibration mini-plenary session during the 13-17 July collaboration meeting.

29 June 1998

"Calibration in DataFlow"

15 June 1998 meeting cancelled

1 June 1998

"Calibration in DataFlow, new fitting tools"

18 May 1998 meeting cancelled

4 May 1998 meeting

"Calibration configuration"

20 April 1998 meeting cancelled

6 April 1998 meeting

"Software reorganization"

23 March 1998 meeting

"Current overall status, update on calibration browser"

9 March 1998 meeting cancelled

23 February 1998 meeting

"Subsystem implementation reports"

9 February 1998 meeting

"Core documentation updates"

26 January 1998 meeting

"Review of subsystems' implementation progress"

12 January 1998 meeting

"Changes and new features in the core software"

15 December 1997 meeting

"Status; Datastream Calibrations in Prompt Reconstruction"

1 December 1997 meeting canceled

Calibration-related sessions at 17-20 November collaboration meeting

  • Plenary presentation ~16:20 Monday 17 November
  • Joint OEP/Calibration mini-plenary 16:30 Wednesday 19 November
  • See the agenda for additional online-related sessions...

3 November 1997 meeting

"Calibration Tagged Containers and Tags"

20 October 1997 meeting

"The Calibration Browser"

6 October 1997 meeting

"The Accumulation Environment"


Materials from the online meeting at Stanford, 14-15 August 1997


Materials for the online/subsystem phone meeting, 31 July 1997

  • The BABAR Calibration System, draft 1.0, 31 July 1997
  • The phone meeting is hosted by SLAC. Participants may attend in person in room G104 on the "BaBar computing corridor" in the Central Lab, or by dialing in to +1-415-926-3516. The meeting will begin at 08:30 PDT and last about an hour.

Activities at the collaboration meeting in Bristol, 21 July 1997

  • Status talk, Electronics/Computing - DataFlow mini-plenary (transparencies by DB, given by gpdf)
  • The 22 July mini-plenary session produced an agreement to hold rotating online phone meetings open to the subsystems on Thursday mornings (08:30-10:00 Pacific time), beginning 31 July 1997. Calibration will be a periodic focus of these meetings, and will in particular be the topic of the first one.

Presentations at the 15 May 1997 mini-plenary


Presentations at the 18 February 1997 mini-plenary


Online Calibration Proposal documentation


Resources


Older documentation

(These will be frozen in their as-presented state for future reference.)

October 1996 Online PDRR/CDR and collaboration meeting

Calibration-related presentations at the 15-17 October 1996 online Preliminary Design Requirements and Conceptual Design review:

Calibration parallel session during the October 1996 collaboration meeting (Monday 21 October 1996):


Online Calibration Group

Matt Weaver (coordinator)
Caltech, weaver@slac.stanford.edu
Gregory P. Dubois-Felsmann (online liason)
Caltech, gpdf@cithe502.cithep.caltech.edu

Subsystem Calibration Contacts


This page maintained by Gregory P. Dubois-Felsmann.
Last modified: Thu Feb 4 15:15:01 PST 1999