Test-beam Preparation

Need firmware to respond to external trigger in a multiple board readout situation.
6 new main-boards to be fabricated and tested
A break-out board to distribute the trigger in sucha way that the baords don't care where it comes from.

program CAEN supply to produce the right voltages to the main-boards and the USBDAQS.
power cables and connectors needed to distribute power from break-out boxes to main-boards and USBDAQS.
may need a 4th break-out box. Gary was the designer. May have some spare boards but if not need to get made.

connect the 3 scintillators up to power.
connect the 3 scintillators up to amplifier.
test scintillators are producing signal.
connect up the scintillator outputs to NIM coincidence unit.
create a NIM system to distribute ANDed trigger to the USBDAQS for readout.
create a holder so the scintillators can be inserted into the frame with accuracy.

set up a pulse generator to produce random triggers through the NIM crate to simulate external trigger.
test readout chain with one board.
test readout with multiple boards.

Insert main-boards in frame.
Create a holder so the scintillators can be inserted into the frame with accuracy.
Insert all equipment into a half-height rack for easy transportation.

Would an x-y(-z) stage for the frame make remote alignment in the test-beam easy?

adapt software to wait for external trigger and then readout.
create control software to launch, pause, stop etc... multiple board readout.
test that the software works with multiple boards
test software picks up the right configuration for multiple-boards and writes out data without interfering with other readout and that data is correctly identified so it can be stitched together later.
test if we can read 6 boards from 1 computer w/o problem and at what rate.
test the data is time-stamped.

test we can stitch together the data from multiple boards.
test that tracks are going through the right part. If not, provide feedback so can move frame to right position.
Alignment software.

Readout "Cherwell Reference" with external ADC.
Readout "Cherwell Strxels" with internal ADC.
If have time look a DECAL25 and DECAL50.
Charge sharing: use the beam to illuminate the pixels so we can see how charge is shared in a 2x2 block. Only needs one board, does not need eudet
Calculate response and signal-to-noise for MIPs. Efficiency, purity, position resolution, cluster size, charge sharing
Insert frame into eudet. Take data with 1 sensor. use eudet to predict position of hit. Calculate hit resolution.
Insert frame into eudet. Take data with >1 sensor. use eudet to predict position of hit. Calculate hit resolution.
Insert frame into beam (ignore eudet). Take data with 6 sensors. Perform track finding off-line (straight line, Kalman filtering?). Calculate hit resolution.