Radiant energy – Geological testing or irradiation
Patent
1989-05-08
1991-07-02
Westin, Edward P.
Radiant energy
Geological testing or irradiation
250255, 25037002, 250393, G01V 500
Patent
active
050292480
ABSTRACT:
Disclosed is an electrostatic capture type radon-measuring apparatus, which includes a supporting circular cylinder supported on a supporting table with an axis of the cylinder extending substantially vertically. A positive electrode has a curved surface extending convexly upward from the upper end of the supporting cylinder. A lower positive electrode of a truncated cone shape has open upper and lower ends and extends as narrowed downward from the upper end of the supporting cylinder. A negative electrode has an upper end thereof located in the vicinity of the lower end opening of the lower positive electrode. A solid track detector is covered with an electro-conductive thin film having .alpha. ray permeability and is mounted on the negative electrode. A cover is provided on the supporting table and encloses the supporting cylinder, upper and lower positive electrodes, negative electrode and solid track detector. The cover has an air-ventilating portion provided with a filter which does not permit the passage of daughter nuclides of radon and thoron.
REFERENCES:
patent: Re33065 (1989-09-01), Alter et al.
patent: 3638059 (1972-01-01), Taylor
patent: 3665194 (1972-05-01), Alter et al.
patent: 3916200 (1975-10-01), Sparks, Jr. et al.
patent: 4385236 (1983-05-01), Hassib et al.
patent: 4417142 (1983-11-01), Malmqvist et al.
patent: 4633089 (1986-12-01), Wijangco
patent: 4778992 (1988-10-01), Wheeler
patent: 4853536 (1989-08-01), Dempsey et al.
patent: 4868386 (1989-09-01), Ilmasti
An Improved Time-Integerating Radon Monitor, A. J. Breslin and A. C. George, U.S. Dept. of Energy, Environmental Measurements Laboratory.
Chu Kim-Kwok
Okano Works Ltd.
Westin Edward P.
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