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Interruption of beam arriving to a detector in order to allow people to enter the radiaton protection area and work on the detector itself.
This is a module used in the BaBar Electromagnetic Calorimeter (EMC) Data AcQuisition (DAQ) system. ADC Boards will be used both in the barrel and end-cap of the EMC.
Reference Link (http://www.slac.stanford.edu/BFROOT/www/Detector/DAQ/Calorimeter/WriteUps/ADB.pdf)
No actual packages are included in a newly created test release. The addpkg command, checks out a package from the CVS repository and adds it to the test release.
Reference Link (http://www.slac.stanford.edu/BFROOT/www/doc/workbook/srt1/srt1.html#addpkg)
AMD is a chip designed that produces Intel 386 compatible CPUs. BaBar is evaluating support for them currently.
Reference Link (http://www.amd.com/us-en/)
The database file systems are accessed remotely via the Advanced Multi-threaded Server, (AMS), using a network protocal. To the user this means that a federation must be created and used on a machine that has the AMS daemon running.
Reference Link (http://www.slac.stanford.edu/BFROOT/www/doc/workbook/objectivity1/objectivity1.html#terms)
This was a component of the BaBar detector in the earlier design phases. It would have been primarily a particle identification device. It was not actually built.
Reference Link (http://www.slac.stanford.edu/BFROOT/www/doc/TDR/)
EPICS (Experimental Physics and Industrial Control Systems) application which provides and interface to software alarms.
Reference Link (http://www.aps.anl.gov/asd/controls/epics/EpicsDocumentation/ExtensionsManuals/AlarmHandler/alhUserGuide.pdf)
Complete set of events taken by BaBar passing Data Quality criteria.
The history of some of the data collected by EPICS. It is indexed by time.
This is a BaBar environment defined command. It's main purpose is to set the OO_FD_BOOT environment variable to point to the off-line copy of ambient database. This command must be executed from a release or immediate subdirectory of one.
Objectivity federation used to store data from ambient, conditions, and configurations databases. Ambientboot receives daily updates of data from ir2boot and weekly updates from MASTER. Ambientboot was created primarily to reduce the load on the ir2boot federation from the application working with the ambient data. If the application does not need ambient data from last 24 hours, it should be run against ambientboot instead of ir2boot.
1999/2000 analysis federation. Used to run analysis based on data from 1999/2000.
This is a BaBar environment defined command. It's main purpose is to set the OO_FD_BOOT environment variable to point to the productuction database by the name of analboot. This command must be executed from a release or immediate subdirectory of one.
This is a BaBar environment defined command. It's main purpose is to set the OO_FD_BOOT environment variable to point to the productuction database by the name of analboot2. This command must be executed from a release or immediate subdirectory of one.
2000/2001 analysis federation. Used to run analysis based on data from 2000/2001.
An electronics board where analog signals are converted to digital signals for readout. In the EMC, the ADB converts the readout of 12 individual channels.
Reference Link (http://www.slac.stanford.edu/BFROOT/www/Detector/DAQ/Calorimeter/WriteUps/EMCDAQDoc.html#ADB)
A loudspeaker, connected to a computer, in the BaBar counting room, which gives important messages to the shifters.
Positive voltage wire in drift chamber to which electrons are attracted.
For every particle in nature there exists an anti-particle (antimatter) with same mass and spin, but opposite electric charge, baryon number, strangeness, lepton number etc. The interaction of a particle with its anti-particle results in their annihilation and release of energy. Although anti-particles and anti-atoms (anti-hydrogen) can be made experimentally, there is no evidence for the existence of large amounts of antimatter in nature.
Reference Link (http://livefromcern.web.cern.ch/livefromcern/antimatter/)
An application framework is a flexible, general purpose encompassing structure, that enforces certain well designed standards of code behavior. An example of an application framework is Microsoft's Foundation Classes.
Reference Link (http://www.slac.stanford.edu/BFROOT/www/doc/workbook/framework1/framework1.html)
A uniform framework interface is accomplished by having each module class inherit from the class AppModule.
Reference Link (http://www.slac.stanford.edu/BFROOT/www/doc/workbook/framework1/framework1.html)
ATOM is your telecommunications representative through whom you can arrange for changes to your phone and voice mail services to be made.
Reference Link (http://www2/comp/telecom/phone)
As soon as possible.
Aslund is a supported part of the SRT release structure, package name Aslund (no longer aslund). It is built as any other package 'gmake Aslund.all' and is run via the workdir package (as is bbsim) via the asrun script; see the README files in the Aslund and workdir packages for usage information (also accessible in the documentation area of the simulation web page).
An associator is a Beta Operator that performs the operation of association. It is often useful to associate one candidate with another during analysis. Reconstruction candidates are associated with their appropriate Monte Carlo truth candidates, etc.
Reference Link (http://www.slac.stanford.edu/BFROOT/www/doc/workbook/beta2/beta2.html#associators)
The person who writes something.
To add an entry to the Glossary use the BaBar Glossary Submission Form.
All comments, requests, and corrections are welcome. Send them by e-mail.
Last significant update: 10-Sept-2002