building a decision engine for neutron/ g measurements
Post on 22-Jan-2016
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Building a Decision Engine for Neutron/g Measurements
FIeld-Programmable Detection
Flash ADC based, FPGA firmware readout
Digital Pulse Processing (DPP) for Pulse Heights (PHA)
100/250 MHz, 12 bit
Digital Pulse Processing (DPP) for Charge Integration (CI)
Digital Pulse Processing (DPP) for Pulse Heights (PHA)
Digital Pulse Processing (DPP) for Charge Integration (CI)
The traditional system
Neutron PSD Logic
Digitization
AcquisitionAnalysis
The FPGA based System
Field Programmable Gated Array
Neutron PSD, ToF, Digitization, Analysis, List Output, DECISION
The FPGA SystemField Programmable Gated Array
Advantages• Cost ! Conventional System
$2.5k per channel, FIND $0.5k per channel
• No overhead on scaling system up
• Much fewer electronic models• Reduced Data Size• Field Configurable• Commercial solution and
partnership (CAEN)
Initial Tests• Proved neutron PSD• Time-of-Flight• PH HPGe (same resolution)• Rates (100% Live Time)• FPGA Logic
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