Development of an electret passive environmental radon monitor: Final report
The electret passive environmental radon monitor (E-PERM) is an extension of electret dosimeters developed for the measurement of x and gamma radiation. It simply consists of a small cup containing an electret at the bottom and a filtered inlet at the top. Radon entering through the filter causes ionization inside the cup, and the ions are collected by the electret. The reduction of charge (surface potential) on the electret is a measure of integrated radon exposure. Based on a study of random error sources, the overall accuracy of the E-PERMs developed is estimated to be +-9%. Some of the errors involved can be reduced substantially. The surface voltage of electrets made from FEP teflon was shown to be very stable even under extreme environmental conditions of temperature and relative humidity. Using an alpha source to simulate a high concentration of radon, E-PERM response was shown to be humidity independent over the operating range. A preliminary cost analysis indicates that both the production cost and reuse cost of E-PERMs may approximate $3.00 plus overhead.
- Research Organization:
- Plastic Casting, Inc., Olean, NY (USA)
- OSTI ID:
- 6554286
- Report Number(s):
- NYSERDA-86-13; ON: DE87900661
- Country of Publication:
- United States
- Language:
- English
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Development of an electret passive environmental radon monitor (E-PERM[trademark]), Phase 2
Development of an electret passive environmental radon monitor (E-PERM{trademark}), Phase 2. Final report
Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALPHA DECAY RADIOISOTOPES
DESIGN
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
DOSES
DOSIMETRY
ECONOMICS
ELECTRETS
ELECTRIC MEASURING INSTRUMENTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELEMENTS
EMANOMETERS
EQUIPMENT
EVEN-EVEN NUCLEI
FABRICATION
FLUIDS
FLUORINATED ALIPHATIC HYDROCARBONS
GAMMA DOSIMETRY
GASES
HALOGENATED ALIPHATIC HYDROCARBONS
HEAVY NUCLEI
HUMIDITY
ISOTOPES
MATERIALS
MEASURING INSTRUMENTS
MONITORS
NONMETALS
NUCLEI
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
POTENTIALS
RADIATION DETECTORS
RADIATION DOSES
RADIATION MONITORS
RADIOISOTOPES
RADON
RADON 220
RADON ISOTOPES
RARE GASES
SECONDS LIVING RADIOISOTOPES
SURFACE POTENTIAL
SYNTHETIC MATERIALS
TEFLON
TESTING
VOLTMETERS
X-RAY DOSIMETRY