Ionizing radiation detector

Patent · Tue Oct 16 04:00:00 EDT 1990

OSTI ID:5879911

Thacker, L H

An ionizing radiation detector is presented which is based on the principle of analog electronic integration of radiation sensor currents in the sub-pico to nano ampere range between fixed voltage switching thresholds with automatic voltage reversal each time the appropriate threshold is reached. The thresholds are provided by a first NAND gate Schmitt trigger which is coupled with a second NAND gate Schmitt trigger operating in an alternate switching state from the first gate to turn either a visible or audible indicating device on and off in response to the gate switching rate which is indicative of the level of radiation being sensed. The detector can be configured as a small, personal radiation dosimeter which is simple to operate and responsive over a dynamic range of at least 0.01 to 1000 R/hr.

• Assignee: Dept. of Energy, Washington, DC (USA)
• Patent Number(s): US 4963747; A
• Application Number: PPN: US 7-363032
• OSTI ID: 5879911
• 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
DESIGN
IONIZING RADIATIONS
MEASURING INSTRUMENTS
RADIATION DETECTORS
RADIATIONS