Abstract
A continuous measuring system has been developed, which uses a plane multiwire-electrode ionization chamber and obtains radon concentrations by measuring in situ alpha energy spectra due to alpha-active nuclei in the air. The chamber has three rigid plane multiwire electrodes in a box of aluminum plates which have holes for the air to flow freely through them. The concentration measurements do not disturb the distribution of radon in the air. Values of concentration are obtained with good statistical errors because of the use of a large volume for the ionization chamber. The slow rise-time pulses of alpha particles from the chamber are analyzed with a specially designed analog-to-digital converter which is controlled with a microcomputer. The energy spectra have been obtained with a FWHM of about 600 keV. Time variations of radon concentrations have been measured in a room in a ferroconcrete building.
| Original language | English |
|---|---|
| Pages (from-to) | 945-951 |
| Number of pages | 7 |
| Journal | Review of Scientific Instruments |
| Volume | 57 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Dec 1 1986 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Instrumentation
Cite this
Plane multiwire-electrode ionization chamber for measurements of radon concentration in air. / Katase, Akira; Matsumoto, Yuzuru; Nagao, Yasunori; Sakae, Takeji; Tanabe, Kenichi; Ishibashi, Kenji.
In: Review of Scientific Instruments, Vol. 57, No. 5, 01.12.1986, p. 945-951.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Plane multiwire-electrode ionization chamber for measurements of radon concentration in air
AU - Katase, Akira
AU - Matsumoto, Yuzuru
AU - Nagao, Yasunori
AU - Sakae, Takeji
AU - Tanabe, Kenichi
AU - Ishibashi, Kenji
PY - 1986/12/1
Y1 - 1986/12/1
N2 - A continuous measuring system has been developed, which uses a plane multiwire-electrode ionization chamber and obtains radon concentrations by measuring in situ alpha energy spectra due to alpha-active nuclei in the air. The chamber has three rigid plane multiwire electrodes in a box of aluminum plates which have holes for the air to flow freely through them. The concentration measurements do not disturb the distribution of radon in the air. Values of concentration are obtained with good statistical errors because of the use of a large volume for the ionization chamber. The slow rise-time pulses of alpha particles from the chamber are analyzed with a specially designed analog-to-digital converter which is controlled with a microcomputer. The energy spectra have been obtained with a FWHM of about 600 keV. Time variations of radon concentrations have been measured in a room in a ferroconcrete building.
AB - A continuous measuring system has been developed, which uses a plane multiwire-electrode ionization chamber and obtains radon concentrations by measuring in situ alpha energy spectra due to alpha-active nuclei in the air. The chamber has three rigid plane multiwire electrodes in a box of aluminum plates which have holes for the air to flow freely through them. The concentration measurements do not disturb the distribution of radon in the air. Values of concentration are obtained with good statistical errors because of the use of a large volume for the ionization chamber. The slow rise-time pulses of alpha particles from the chamber are analyzed with a specially designed analog-to-digital converter which is controlled with a microcomputer. The energy spectra have been obtained with a FWHM of about 600 keV. Time variations of radon concentrations have been measured in a room in a ferroconcrete building.
UR - http://www.scopus.com/inward/record.url?scp=36549102039&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=36549102039&partnerID=8YFLogxK
U2 - 10.1063/1.1138840
DO - 10.1063/1.1138840
M3 - Article
AN - SCOPUS:36549102039
VL - 57
SP - 945
EP - 951
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
SN - 0034-6748
IS - 5
ER -