Method and apparatus for monitoring radioactive particles carried by a flowing liquid. [using filter]

Patent · Tue Apr 27 04:00:00 EDT 1976

OSTI ID:7187691

Neeb, K H; Stoeckert, H; Fuchs, A

The radioactivity of flowing water carrying very low concentrations of radioactive nuclides is continuously monitored by passing the flowing water through a filter means to form an increasing collection of the nuclides, which collection is continuously monitored by a radioactivity detector producing pulses at an increasing rate dependent on the radioactivity of the collection. The pulses are fed to a pulse counter having an alarm activated by a pulse counter of adjustable count limit, and this limit is adjusted upward as the collection increases with time and in proportion to the time duration of the filtering and collecting. Therefore, the alarm is not activated if the concentration of the nuclides in the flowing water remains within the predetermined value; but if this value is exceeded, the alarm is activated.

• Assignee: Kraftwerk Union Aktiengesellschaft
• Patent Number(s): US 3953737
• OSTI ID: 7187691
• 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
ALARM SYSTEMS
DESIGN
FILTERS
HYDROGEN COMPOUNDS
LIQUID CONTAMINATION MONITORS
MEASURING INSTRUMENTS
OXYGEN COMPOUNDS
RADIATION MONITORS
WATER