Method and circuit arrangement for discriminating between pulses generated by alpha and/or beta radiators
Patent
·
OSTI ID:6450830
Alpha and beta particles containing samples are detected to generate detector pulses wherein the leading edge of the pulses rise particle specifically almost constantly during a predetermined time with the slope of the pulses generated by alpha particles being substantially greater than the slope of the pulses generated by the beta particles. This physical phenomenon which is substantially independent of the energy of the particles is utilized for discrimination to determine which type of particle produced the pulse. The linear starting region of the leading edge of the detector pulse is time discriminated in the nanosecond range. During the time given by the time discrimination, the detector pulses of alpha particles reach substantially higher amplitude values than the detector pulses generated by beta particles. The amplitude of the time discriminated detector pulse is determined by amplitude discrimination and is converted to trigger pulses which trigger a first counter for unequivocal alpha events or a second counter for unequivocal beta events. The very small portion of the detector pulses, whose amplitude obtained by time discrimination cannot be unequivocally associated with alpha or beta events, cause a third counter to be triggered which indicates the quality of the measurement.
- Assignee:
- Kernforschungszentrum Karlsruhe Gesellschaft mit beschrankter Haftung (Germany, Federal Republic Of)
- Patent Number(s):
- US 4454587
- OSTI ID:
- 6450830
- Country of Publication:
- United States
- Language:
- English
Similar Records
SIMULTANEOUS HAND AND CLOTHING CHECKING FOR ALPHA AND BETA CONTAMINATION
Ignition timing control system for internal combustion engines
A SYNCHRONISING DISCRIMINATOR FOR SCINTILLATION COUNTER PULSES
Technical Report
·
Fri Oct 30 23:00:00 EST 1959
·
OSTI ID:4267541
Ignition timing control system for internal combustion engines
Patent
·
Mon Feb 16 23:00:00 EST 1987
·
OSTI ID:6739747
A SYNCHRONISING DISCRIMINATOR FOR SCINTILLATION COUNTER PULSES
Journal Article
·
Mon Dec 31 23:00:00 EST 1962
· Nucl. Instr. Methods
·
OSTI ID:4757108
Related Subjects
440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALPHA PARTICLES
BETA PARTICLES
CHARGED PARTICLES
DESIGN
DISCRIMINATORS
ELECTRONIC CIRCUITS
MEASURING INSTRUMENTS
PULSE CIRCUITS
PULSE DISCRIMINATORS
PULSE TECHNIQUES
PULSES
RADIATION DETECTORS
TIMING PROPERTIES
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALPHA PARTICLES
BETA PARTICLES
CHARGED PARTICLES
DESIGN
DISCRIMINATORS
ELECTRONIC CIRCUITS
MEASURING INSTRUMENTS
PULSE CIRCUITS
PULSE DISCRIMINATORS
PULSE TECHNIQUES
PULSES
RADIATION DETECTORS
TIMING PROPERTIES