Extended range radiation dose-rate monitor

Patent · Tue Aug 30 00:00:00 EDT 1988

OSTI ID:5542617

Valentine, K H

This patent describes an extended range counter system for measuring ionizing radiation dose-rates up to at least 1000 R/h. The counter system includes: an ionizing radiation detector means for producing current pulses at a rate corresponding to the photon interaction rate of ionizing radiation to be detected and having an amplitude proportional to the charge deposited by each photon of radiation detected; an amplifier means responsive to each of the current pulses for generating fixed width voltage pulses at an output thereof having an amplitude proportional to the amplitude of the current pulses; a comparator means having a signal input connected to the output of the amplifier means and a reference voltage input for generating a logic pulses at an output thereof for each input pulse from the amplifier means which exceeds the comparator means threshold determined by a reference voltage level applied to the reference voltage input of the comparator means; an integrator means connected to the output of the comparator means for integrating the logic pulses to provide an output signal proportional to the rate of logic pulses applied to the input thereof.

• Assignee: Dept. of Energy, Washington, DC (USA)
• Patent Number(s): A; US 4767929
• Application Number: PPN: US 6-915841A
• OSTI ID: 5542617
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BOSONS
DESIGN
DOSE RATES
DOSEMETERS
DOSES
ELEMENTARY PARTICLES
IONIZING RADIATIONS
MASSLESS PARTICLES
MEASURING INSTRUMENTS
OPERATION
PHOTONS
PULSE TECHNIQUES
RADIATION DETECTORS
RADIATION DOSES
RADIATIONS