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GlueX electronics

GlueX electronics. Collaboration Meeting May, 2004 Paul Smith. 12,500 ADC channels 8,200 TDC channels Level 1 Trigger: 200 KHz X 5 KB/event = 1GB/sec Digital Pipeline Deadtimeless ~$3.5M. Cockcroft-Walton PMT base. Robotic Selective Assembly. Electronics Review.

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GlueX electronics

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  1. GlueX electronics Collaboration Meeting May, 2004 Paul Smith

  2. 12,500 ADC channels • 8,200 TDC channels Level 1 Trigger: 200 KHz X 5 KB/event = 1GB/sec Digital Pipeline Deadtimeless ~$3.5M

  3. Cockcroft-Walton PMT base

  4. Robotic Selective Assembly

  5. Electronics Review Andy Lankford (UC Irvine) and Glenn Young (ORNL) at the GlueX Electronics Review - July 23 2003

  6. Single channel FADC prototype Test bed for:: SPT converter chip Xilinx chip and software Mentor PCB & FPGA software Intellectual Property (PCI core) Robotic assembly

  7. JLab TDC Module

  8. “Electronics” View of Trigger/DAQ Every 64-256 events Trigger Every event Front End “Digitizer” Digital Pipeline FE/DAQ Interface Event Block Buffers Analog Data To ROC

  9. Physics Signal Level 1 Level 3 Photon Rates Start @ 107g/s Open and unbiased trigger Design for 108g/s 15 KHz events to tape Level 1 trigger system With pipeline electronics Software-based Level 3 System

  10. Selected Review Conclusions: • It is important to insure that the requirements on the electronics derive from the physics. • The requirements and specifications of the analog front-end electronics are not yet adequately defined. This is coupled to the tentative status of some detector designs. The lack of full definition of detector designs may soon limit progress on electronics design, • The manpower resources shown during the review will be inadequate for developing an electronics system of the scope required by GlueX. • The decision to standardize all detector readout on a single TDC module design and a single Flash ADC module design is good, and will help simplify the overall electronics system design in a constructive way and conserve valuable engineering resources. • The Committee feels that it is desirable to locate these modules in a radiation-free area if possible, in order to improve access.

  11. CD-0 • 5 years to beam! • BaBar required 100s of engineer-years • GlueX currently has 2 electronics engineers • Key detector parameters still undefined • Funding profile unknown • Management plan unimplemented Welcome new collaborators from Alberta and Oak Ridge!

  12. Divide and Conquer At least one engineer per sub-system:

  13. FADC price/performance space

  14. Next (final?) version of FCAL FADC Energy sum Ethernet Small Xilinx FADC Xilinx V2PRO Clock/ Sync 6U PICMG 2.16

  15. Buy FADCs? LeCroy Gage Acqiris Struck

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