Difference between revisions of "Trigger Outline for May 2008"
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− | See Dave Doughty's note on the Level 1 trigger design on the GlueX DocDB: [ | + | == First Level Trigger Review== |
+ | |||
+ | === Introduction === | ||
+ | * GlueX Physics | ||
+ | * Photon Beam | ||
+ | # Tagged Bremsstrahlung | ||
+ | # Coherent Bremsstrahlung | ||
+ | # Photon spectrum | ||
+ | * Trigger Design Requirements and Principle | ||
+ | #Backgrounds | ||
+ | #Trigger rate and latency | ||
+ | #Detector components used in the trigger | ||
+ | |||
+ | ---- | ||
+ | === Trigger Simulation === | ||
+ | * Overview | ||
+ | # GEANT detector simulation | ||
+ | # Tagger simulation | ||
+ | * Backgrounds | ||
+ | # Electromagnetic | ||
+ | # Hadronic | ||
+ | #:-Pythia tuning | ||
+ | #:- hadronic background region (Egamma < 8 GeV) | ||
+ | #:- signal region (Egamma > 8 GeV) | ||
+ | #Multiple-event pileup simulation | ||
+ | |||
+ | * Detector Responses (Distributions and Rates) | ||
+ | # Tagger | ||
+ | # FCAL | ||
+ | # BCAL | ||
+ | # TOF | ||
+ | # ST Counter | ||
+ | * The Trigger Algorithm (Correlations Among Subdetectors) | ||
+ | # Operating at low luminosity (10^7) | ||
+ | # Operating at hight luminosity (10^8) | ||
+ | * Trigger Efficiency | ||
+ | # Classify 'signal' decay channels based on (smth. like) | ||
+ | #:- multiplicity of charged tracks (photons) | ||
+ | #:- events with proton/neutron recoil | ||
+ | |||
+ | ---- | ||
+ | |||
+ | === Hardware Implementation === | ||
+ | * Overview | ||
+ | # Trigger diagram | ||
+ | # Trigger types (?) | ||
+ | #: - hadronic trigger | ||
+ | #: - minimum bias (Random ?) | ||
+ | #: - CDC cosmic | ||
+ | #: - subdetector's stand alone ( pedestals, LED (?), etc...) | ||
+ | * Trigger System Hardware Components | ||
+ | # VXS Crates (electronics review ?) | ||
+ | # FADC250 (electronics review ?) | ||
+ | #:- Energy Sum Processing | ||
+ | #:- Tagger 'Hit-Bit' Processing | ||
+ | #:- ST, TOF Track-Count Processing | ||
+ | # Crate Trigger Processor (CTP) | ||
+ | # Trigger Interface Module (TI) | ||
+ | # Signal Distribution | ||
+ | # SubSystem Processors (CTP) | ||
+ | # Global Trigger Processors | ||
+ | # Trigger Supervisor | ||
+ | # Trigger Distribution (TD) | ||
+ | |||
+ | ---- | ||
+ | |||
+ | === Loading and Testing === | ||
+ | * 250 MHz trigger system test | ||
+ | * 200 kHz crate trigger test | ||
+ | * FPGA programming/simulation | ||
+ | * ... | ||
+ | |||
+ | ---- | ||
+ | |||
+ | === Operation Control / Online Monitor === | ||
+ | * Online performance check | ||
+ | # Energy Sum, optical links, etc. | ||
+ | |||
+ | ---- | ||
+ | |||
+ | === Time Schedule and Manpower === | ||
+ | |||
+ | ---- | ||
+ | |||
+ | === Related Documents === | ||
+ | |||
+ | See Dave Doughty's note on the Level 1 trigger design on the GlueX DocDB: [https://halldweb.jlab.org/DocDB/0010/001017/001/HallD_Level_1_OverviewV2.pdf GlueX-Doc-1017-v1] | ||
+ | |||
+ | Trigger Network System drawings posted by Chris Cuevas | ||
+ | [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1013 GlueX-doc-1013-v1 ] |
Latest revision as of 12:40, 14 March 2017
Contents
First Level Trigger Review
Introduction
- GlueX Physics
- Photon Beam
- Tagged Bremsstrahlung
- Coherent Bremsstrahlung
- Photon spectrum
- Trigger Design Requirements and Principle
- Backgrounds
- Trigger rate and latency
- Detector components used in the trigger
Trigger Simulation
- Overview
- GEANT detector simulation
- Tagger simulation
- Backgrounds
- Electromagnetic
- Hadronic
- -Pythia tuning
- - hadronic background region (Egamma < 8 GeV)
- - signal region (Egamma > 8 GeV)
- Multiple-event pileup simulation
- Detector Responses (Distributions and Rates)
- Tagger
- FCAL
- BCAL
- TOF
- ST Counter
- The Trigger Algorithm (Correlations Among Subdetectors)
- Operating at low luminosity (10^7)
- Operating at hight luminosity (10^8)
- Trigger Efficiency
- Classify 'signal' decay channels based on (smth. like)
- - multiplicity of charged tracks (photons)
- - events with proton/neutron recoil
Hardware Implementation
- Overview
- Trigger diagram
- Trigger types (?)
- - hadronic trigger
- - minimum bias (Random ?)
- - CDC cosmic
- - subdetector's stand alone ( pedestals, LED (?), etc...)
- Trigger System Hardware Components
- VXS Crates (electronics review ?)
- FADC250 (electronics review ?)
- - Energy Sum Processing
- - Tagger 'Hit-Bit' Processing
- - ST, TOF Track-Count Processing
- Crate Trigger Processor (CTP)
- Trigger Interface Module (TI)
- Signal Distribution
- SubSystem Processors (CTP)
- Global Trigger Processors
- Trigger Supervisor
- Trigger Distribution (TD)
Loading and Testing
- 250 MHz trigger system test
- 200 kHz crate trigger test
- FPGA programming/simulation
- ...
Operation Control / Online Monitor
- Online performance check
- Energy Sum, optical links, etc.
Time Schedule and Manpower
Related Documents
See Dave Doughty's note on the Level 1 trigger design on the GlueX DocDB: GlueX-Doc-1017-v1
Trigger Network System drawings posted by Chris Cuevas GlueX-doc-1013-v1