1. Stephen Pate New Mexico State University September 1999
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G0 Integration Issues
Stephen Pate
New Mexico State University
September 1999
5/4/2019

2. Preview Numbering/Naming Scheme Coordinate System Detector Cable Plant
Cabling & Cryo Services Arms
“Mock Data Challenge”
5/4/2019

3. Numbering Scheme (for DAQ and computation)
Octants: 1-8, clockwise in electron scattering mode w.r.t. the beam
Detectors Locations: 1-16
Detector Type:
1=Front FPD, 2=Back FPD, 3=CED
Left/Right: 1=Left, 2=Right
5/4/2019

4. Naming Scheme (for mechanical parts)
Octants: 1-8, clockwise in electron scattering mode w.r.t. the beam
Detectors Locations: 1-16
Detector Type:
F=Front, B=Back, C=CED
Left/Right: L=Left, R=Right
Additional labels can be added (“anode”, “PMT”, “light-guide”…)
5/4/2019

5. Coordinate System Cartesian (xyz) System used in magnet design
x=up, y=right, z=beam
Cylindrical (rfz) System seems more natural in discussing systematic studies
use f=0 at top to be consistent with existing xyz system used for magnet design
5/4/2019

6. Coordinates/Numbering/Naming
From Laszewski (G )
5/4/2019

7. Detector Cable Plant 512 RG58 Signal Cables 512 HV Cables 2nd Floor
Counting
House
Service Arm
Hall Patch
Bases
Very Long RG58
Long RG58
Service Arm
HVPS Patch
Hall Patch
Bases
HVPS
Short SHV
Multi-wire
cables
Long SHV
5/4/2019

8. Cryo Service Arm
Design -- two long straight sections with hinges, like a human arm
Current and LHe to magnet and target
Hydrogen gas lines; straight sections save gas volume compared to flexible
Trivial amount of cabling for magnet and target controls
Needs to be bid in ~November
5/4/2019

9. Detector Service Arm Supports HV and signal cables out to the detector
Low voltage cables for French bases
Trivial amount of monitoring cables
Design -- “caterpillar” cable tray on floor between rails
5/4/2019

10. “Mock Data Challenge”
Simulation of entire data acquisition and analysis chain -- prepare software in parallel to hardware
No money and few people to do this, so need to start now to give sufficient time
Forces consideration of data formats and other details that might be left to last minute and not properly thought out
5/4/2019

11. “Mock Data Challenge” (more)
Tasks:
Write generators which produce simulated data streams; scalers, TDC/ADC data, slow control data; online analysis tasks tested at this level
Collection of these streams into an archive (disk or tape)
Analysis of archive tests offline analysis software
5/4/2019

12. “Mock Data Challenge” (more)
Schedule
identify workers
schedule tasks over the next 1.5 years
coordinate with arrival of relevant hardware
Eventually provides framework for complete MC simulation of data acquisition and analysis
5/4/2019