Electronics

Text Box: Preamplifiers

Array of 80 photomultiplier tubes

 


 

 

 

 

 

 

 

 

 

 

Text Box: Splitter Amplifier

 

 

Text Box: Information about the pulse shape and total integrated charge is recorded in the digitized signal. This is proportional to the number of photo-electrons entering the PMT Text Box: Custom FPGA ? reads the TDCs and passes data to the computer upon trigger Text Box: Trigger initiates readout sequence Text Box:   Text Box: Upon receiving a trigger, the TDCs and digitizers are read via parallel port with EPP protocol Text Box: Digitizers Text Box: TDCs record rising and falling edges of discriminated pulse to 0.5 ns accuracy for both an accurate measure of time of arrival and as time over threshold Text Box: 3 ns Text Box: Discriminators Text Box: TDCs Text Box: Custom FPGA ? delays, sums, and triggers on discriminated signal