Continuous monitor for radon daughters and their unattached fractions
- Central Research Institute of the Electric Power Industry, Tokyo (Japan)
Radon-222 daughters, namely, [sup 218]Po, [sup 214]Pb, and [sup 214]Bi, have attracted much attention as a primary source of general public exposure. Radon-222 daughters in air are attached to aerosols or unattached. The effective dose equivalent due to inhalation of [sup 222]Rn daughters not only depends on the concentrations of [sup 222]Rn daughters but also on the unattached fraction defined as the ratio of unattached to the total [sup 222]Rn daughters. In addition, the concentrations of the total and unattached [sup 222]Rn daughters vary with time because they strongly depend on parameters such as ventilation in a room and meteorological conditions. For accurate dosimetry, it is required to estimate the total and unattached [sup 222]Rn daughters separately and continuously. Regarding this, we developed an automatic monitor for long-term continuous measurements of radon daughters and their unattached fractions.
- OSTI ID:
- 6953249
- Report Number(s):
- CONF-931160--
- Journal Information:
- Transactions of the American Nuclear Society; (United States), Journal Name: Transactions of the American Nuclear Society; (United States) Vol. 69; ISSN 0003-018X; ISSN TANSAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Deposition of {open_quotes}unattached{close_quotes} radon daughters in models of human nasal and oral airways
Measurement of radon and radon daughters in air: Recommendations of the National Council on Radiation Protection and Measurements
Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AEROSOLS
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BISMUTH 214
BISMUTH ISOTOPES
COLLOIDS
DAYS LIVING RADIOISOTOPES
DISPERSIONS
DOSE RATES
DOSIMETRY
EVEN-EVEN NUCLEI
HEAVY NUCLEI
ISOTOPES
LEAD 214
LEAD ISOTOPES
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
MONITORING
MONITORS
NUCLEI
ODD-ODD NUCLEI
POLONIUM 218
POLONIUM ISOTOPES
RADIATION MONITORS
RADIOISOTOPES
RADON 222
RADON ISOTOPES
SOLS