FAST LOW LEVEL PULSE HEIGHT DISCRIMINATOR
Technical Report
·
OSTI ID:4659477
The behavior of the tunnel diode in a fast low-level pulse height discrimainator is analyzed. The characteristics of the tunnel diode in fast trigger circuits are studied by plotting the switching waveforms for nonlinear load and variable input pulse amaplitude and shape. The relations between the switching time, the lambda'' pulse, and the hysteresis are considered and extended also to the classical trigger circuits. As a result of the analysis a discriminator circuit was developed after an investigation of the different bias circuits. The lowest threshold level is about 2 mv and the input rarge is higher than 100. The linearity is satisfactory over the whole range and a good temperature stability can be achieved with a simple and cheap thermostat. The lergth of the lambda'' signal is about 8 nsec but could be further reduced with faster components and more care in the circuit lay-out. (auth)
- Research Organization:
- European Atomic Energy Community. Nuclear Research Center, Ispra, Italy; Centro Informazioni Studi Esperienze, Milan
- NSA Number:
- NSA-17-037394
- OSTI ID:
- 4659477
- Report Number(s):
- EUR-406.e
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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