Level 1 Trigger
(SuperCDMS SNOLAB Project WBS 1.6.6)
L3 Manager: Jon S. Wilson
The Level 1 Trigger (L1 Trigger) for SuperCDMS SNOLAB must identify energy-deposition events within our detectors in real time. It must achieve high efficiency for very low-energy events while maintaining a very low rate of false positives caused by electronics noise.
The L1 Trigger is implemented as FPGA firmware which will run on the Detector Control and Readout Card (DCRC). We are writing the firmware, testing it, and integrating it with the other firmware for the DCRC.
The efficiency and noise-rejection requirements of the L1 trigger are achieved by exploiting a Finite Impulse Response (FIR) filter with a very long baseline, which allows us to calculate a real-time energy estimator that is comparable in resolution and fidelity to the energy estimators used in offline data analysis.
| Elham Azadbakht (December 5, 2019) |
DAQ Meeting | Hybrid Readout and Microcontroller Versions (.pdf) |
| Elham Azadbakht (November 21, 2019) |
DAQ Meeting | Update on microcontroller firmware versions (.pdf) |
| Elham Azadbakht (October 24, 2019) |
DAQ Meeting | Trigger Hybrid Readout Issues (.pdf) |
| Elham Azadbakht (September 12, 2019) |
DAQ Meeting | Validating the performance of the Trigger for the Super Cryogenic Dark Matter Experiment (.pdf) |
| Jon S. Wilson (November 15, 2018) |
DAQ Meeting | Plans for testing DAQ functionality with Rev E boards at Texas A&M (.pdf) |
| Jon S. Wilson (October 18, 2018) |
DAQ Meeting | Hybrid readout implementation (.pdf) |
| Jon S. Wilson (September 13, 2018) |
DAQ Meeting | L1 Trigger Work |
| Jon S. Wilson (August 30, 2018) |
DAQ Meeting | Multiple Triggers at L1 (.pdf) |
| Jon S. Wilson (June 7, 2018) |
Tower/DAQ/Electronics Meeting | Update: L1 trigger testing at A&M (.pdf) |
| Jon S. Wilson (May 24, 2018) |
Tower/DAQ/Electronics Meeting | L1 trigger testing at A&M (.pdf) |
| Jon S. Wilson (February 1, 2018) |
Tower/DAQ/Electronics Meeting | SNOLAB L1 Trigger Commissioning Plan (.pdf) |
| Jon S. Wilson (March 9, 2017) |
DAQ/Trigger Meeting | L1 trigger firmware update (.pdf) |
| Jon S. Wilson (January 13, 2017) |
SuperCDMS Collaboration Meeting / L1 Trigger Firmware Review | L1 Trigger Firmware Review |
| Jon S. Wilson (July 14, 2016) |
SuperCDMS DAQ Meeting | L1 trigger firmware update |
| Jon S. Wilson (Nobember 12, 2015) |
SuperCDMS DAQ Meeting | L1 trigger firmware update (.pdf) |
| Xuji Zhao July 23, 2015 |
SuperCDMS DAQ Meeting | Trigger Algorithms and their Resolutions for the SuperCDMS Trigger (.pdf) |
| David Toback April 2, 2015 |
Fermilab Directors Review | The SuperCDMSâSNOLAB Trigger System (.pdf) |
| Jon S. Wilson March 5, 2015 |
SuperCDMS DAQ Meeting | Downsampling vs Narrowing Window (.pdf) |
| Xuji Zhao March 5, 2015 |
SuperCDMS DAQ Meeting | Filter Study for Use in L1 Triggering at SNOLab (.pdf) |