Hall D Online Meeting9 August 2007

Fast Electronics R. Chris Cuevas

Group Leader Jefferson Lab

Experimental Nuclear Physics Division

Mission Who’s Who

Design & Support RoleProject Examples‘Online’ Role

Mission

The Fast Electronics Group provides the expertise and facilities necessary for the design and development of fast analog and digital electronics required for the experimental programs, and assures that the custom electronics hardware developed and installed for the experiment areas are supported with expertise in field diagnosis, repair, and calibration ability.  

 

Experimental Nuclear Physics DivisionFast Electronics Group

Fernando Barbosa

Staff Engineer III

Hai Dong

Staff Engineer II

TanestChinwanawich

Staff Engineer II

Ben Raydo

Staff Engineer II

Jeff Wilson

TechnicalAssociate

Mark Taylor

TechnicalAssociate

William Gunning

SeniorTechnologist

Armen Stepanyan

ElectronicsTechnician II

Chris Cuevas

Group Leader

‘Custom’ electronics designed for experimental programs (and other groups) as required by Staff and Users.

Analog and Digital circuit simulation

       Computer Aided Engineering/Drafting (CAE/CAD)

PCAD, Mentor Graphics, HyperLynx, AutoCad

     Field Programmable Gate Array (FPGA) Development

Xilinx, Altera, Aldec – Synthesis, simulation and verification

Circuit prototype development and fabrication

Full assembly and testing provided for final designs

Continued support/upgrade and repair of custom designed electronics

Essential Design & Support Functions

Specification development and consultation.“I need a special raster power supply”

“ I want to convert my CAMAC modules to VME64x”

“ Can you make this with a flex circuit?”

       ‘Triage’ and repair of legacy CAMAC, NIM, VME instrumentation

     Thermal imaging and analysis

Field support of various powered card enclosures [ crates ] including custom crates for front-end readout systems.

Additional Capabilities

Project Accomplishments   Circuit Designs – ‘Concept to Copper’

•  Scores of custom designs produced and still in use

Examples:

F1TDC

Beam Profile Monitor

NIM Modules

F1TDC ‘HUB’

Wire Chamber Readout

Discriminator/Scaler

z

16 channel 250 Msps Flash ADC Energy Sum Module

VXSHigh SpeedSerialBackplane

Latest Designs

Key Challenges

• High speed serial data links:• VXS crates• fADC -> CrateSum -> EnergySumProcessor

• Trigger System distribution• Complex digital circuit board designs• •

Develop !NOW! specifications for a multi-crate test station.

Two VXS crates with crate summing module

Clock/Trigger/Sync modules

Level 1 processor/Global Trigger Processor

Trigger Supervisor and Trigger system distribution

Develop !NOW! Online specifications for diagnostics, triggering configuration, commissioning plan

Ultimately the Electronics Group will be responsible for the custom modules/systems that we design.

During the installation phase, I am certain we will work closely with the Hall D Scientific/DAQ Staff to successfully commission the detector readout system.

Electronics Group’s Role for ‘Online’

Questions? Discussion?