The Pickoff Card: Difference between revisions

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(Created page with "== The VXI Pickoff Card == The VXI Pickoff Card receives the single-ended signals for the Ge Center, Ge Sides, BGO Sum, and BGO Pattern (BGO-P does not exist here) from the Sl...")
 
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== The VXI Pickoff Card ==
== The VXI Pickoff Card ==
The VXI Pickoff Card receives the single-ended signals for the Ge Center, Ge Sides, BGO Sum, and BGO Pattern (BGO-P does not exist here) from the Slope Box. The VXI pickoff converts these to differential signal format before sending them to the digitizer.
The large 50-conductor grey cables run between the Slope Box on each detector to the Pickoff cards in the VXI crates.
 
[[File:VXI Pickoff cards TOP.jpg|thumb]]
 
The VXI Pickoff Card receives the single-ended signals for the Ge Center, Ge Sides, and BGO segments from the Slope Box. The VXI pickoff converts these to differential signal format before sending them to the digitizer.


There are three gain range options (jumper selectable) for the Ge Center: 2, 5, 10 MeV
There are three gain range options (jumper selectable) for the Ge Center: 2, 5, 10 MeV


There is a fixed Preamp Reset Clamp that drives the Ge Center back to baseline after a preamp reset. This sometimes has known oscillation problems (ringing) that can hinder resolution.
There is a fixed Preamp Reset Clamp that drives the Ge Center back to baseline after a preamp reset. This sometimes has known oscillation problems (ringing) that can hinder resolution.

Revision as of 18:04, September 20, 2021

The VXI Pickoff Card

The large 50-conductor grey cables run between the Slope Box on each detector to the Pickoff cards in the VXI crates.

The VXI Pickoff Card receives the single-ended signals for the Ge Center, Ge Sides, and BGO segments from the Slope Box. The VXI pickoff converts these to differential signal format before sending them to the digitizer.

There are three gain range options (jumper selectable) for the Ge Center: 2, 5, 10 MeV

There is a fixed Preamp Reset Clamp that drives the Ge Center back to baseline after a preamp reset. This sometimes has known oscillation problems (ringing) that can hinder resolution.