Biased amplifier with pulse stretcher (Engineering Materials)

Miscellaneous ·

OSTI ID:6235636

This No. 2 NIMS module is a repackaging of the biased amplifier and stretcher boards used in the Goulding/Landis Amplifier System (A10-01-001). The biased amplifier allows one to expand the upper portion of a spectrum so that it may be analyzed more precisely with a multi-channel PHA. Since the output of the biased amplifier is simply the tops of pulses that have been further amplified, and may be quite narrow, it is generally necessary to reshape before going to the analyzer ADC. The pulse stretcher following the biased amplifier stretches the pulses in width without altering their amplitude. It incorporates trigger circuits so that when sufficient time has been allowed for the following ADC to charge to the full amplitude, the stretched pulse is quickly clamped to the baseline (provided the input pulse is narrower than the stretching time). If the input pulse to the stretcher has a slow fall, the stretcher output will follow it. A connector is provided so that if desired, one can take the output signal directly from the biased amplifier. The biased amplifier can be bypassed in one of the GAIN positions.

• Research Organization: California Univ., Livermore (USA). Lawrence Radiation Lab.
• OSTI ID: 6235636
• Report Number(s): CAPE-2682
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMPLIFIERS
DESIGN
DIAGRAMS
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
MULTI-CHANNEL ANALYZERS
NUCLEAR INSTRUMENT MODULES
PULSE AMPLIFIERS
PULSE ANALYZERS
PULSE CIRCUITS
PULSE SHAPERS
TRIGGER CIRCUITS