skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Automatically processed alpha-track radon monitor

Abstract

An automatically processed alpha-track radon monitor is provided which includes a housing having an aperture allowing radon entry, and a filter that excludes the entry of radon daughters into the housing. A flexible track registration material is located within the housing that records alpha-particle emissions from the decay of radon and radon daughters inside the housing. The flexible track registration material is capable of being spliced such that the registration material from a plurality of monitors can be spliced into a single strip to facilitate automatic processing of the registration material from the plurality of monitors. A process for the automatic counting of radon registered by a radon monitor is also provided.

Inventors:
Publication Date:
Research Org.:
Chem-Nuclear Geotech
OSTI Identifier:
5974738
Patent Number(s):
US 5179285; A
Application Number:
PPN: US 7-694738; TRN: 93-019233
Assignee:
Dept. of Energy, Washington, DC (United States) ALO; EDB-93-136719
DOE Contract Number:
AC07-86ID12584
Resource Type:
Patent
Resource Relation:
Patent File Date: 2 May 1991
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; RADIATION MONITORS; DESIGN; RADON; RADIATION MONITORING; ALPHA PARTICLES; DAUGHTER PRODUCTS; CHARGED PARTICLES; ELEMENTS; FLUIDS; GASES; ISOTOPES; MEASURING INSTRUMENTS; MONITORING; MONITORS; NONMETALS; RARE GASES; 540130* - Environment, Atmospheric- Radioactive Materials Monitoring & Transport- (1990-); 440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments

Citation Formats

Langner, G.H. Jr.. Automatically processed alpha-track radon monitor. United States: N. p., 1993. Web.
Langner, G.H. Jr.. Automatically processed alpha-track radon monitor. United States.
Langner, G.H. Jr.. 1993. "Automatically processed alpha-track radon monitor". United States. doi:.
@article{osti_5974738,
title = {Automatically processed alpha-track radon monitor},
author = {Langner, G.H. Jr.},
abstractNote = {An automatically processed alpha-track radon monitor is provided which includes a housing having an aperture allowing radon entry, and a filter that excludes the entry of radon daughters into the housing. A flexible track registration material is located within the housing that records alpha-particle emissions from the decay of radon and radon daughters inside the housing. The flexible track registration material is capable of being spliced such that the registration material from a plurality of monitors can be spliced into a single strip to facilitate automatic processing of the registration material from the plurality of monitors. A process for the automatic counting of radon registered by a radon monitor is also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1993,
month = 1
}
  • An automatically processed alpha-track radon monitor is provided which includes a housing having an aperture allowing radon entry, and a filter that excludes the entry of radon daughters into the housing. A flexible track registration material is located within the housing that records alpha-particle emissions from the decay of radon and radon daughters inside the housing. The flexible track registration material is capable of being spliced such that the registration material from a plurality of monitors can be spliced into a single strip to facilitate automatic processing of the registration material from the plurality of monitors. A process for themore » automatic counting of radon registered by a radon monitor is also provided.« less
  • An automatically processed alpha-track radon monitor is provided which includes a housing having an aperture allowing radon entry, and a filter that excludes the entry of radon daughters into the housing. A flexible track registration material is located within the housing that records alpha-particle emissions from the decay of radon and radon daughters inside the housing. The flexible track registration material is capable of being spliced such that the registration material from a plurality of monitors can be spliced into a single strip to facilitate automatic processing of the registration material from the plurality of monitors. A process for themore » automatic counting of radon registered by a radon monitor is also provided.« less
  • A system is designed for monitoring or controlling the level of radon in indoor air, based upon measuring alpha particles due to the decay of radon or its daughter atoms. In one embodiment, the alpha particle decay of radon itself is detected and analyzed to control a vent in the heating and air conditioning system to automatically keep the radon level below a preselected level. In another embodiment, the daughter atoms {sub 218}Po and {sub 214}Po are collected from the indoor air and their alpha particle decays are analyzed to provide a sensitive monitor of radon levels or to controlmore » vents in the HVAC system to reduce radon concentrations to permissible levels. In addition, the system provides information on the quality of the air filter and indicates when it needs servicing.« less
  • This patent covers a method and system to continuously monitor the radon concentration in air. As disclosed, these readings are made in situ in a uranium mine to indicate whether safe working conditions exist therein. The apparatus forming this invention has one or a series of detectors each having: a filter network; a flow control valve; a scintillation cell; a flow meter; a gas pump; a photomultiplier tube with a voltage control circuit; and a signal discriminator with an amplifier and shaper circuit. External of the detectors and connected thereto is a counting and recording system which counts and recordsmore » the voltage pulses which are indicative of the alpha count on the detector cell. When connected each detector can be sequentially monitored for a predetermined time interval by the counting system so that the local radon level can be continuously monitored for 24 hours per day seven days a week.« less