Radon control system

Details Radon control system Radon control system

1990-07-18

1991-10-01

Wieder, Kenneth A.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250253, 250255, 2503741, 324464, H01J 4700, G01T 118

Patent

active

050536249

ABSTRACT:
A detector of ambient radon concentrations in real time comprising a housing, at least three conductive elements one of which being grounded, another being biased with respect to the other conductive elements, and at least one other conductive element being connected in series with an amplifier circuit and a counter circuit, respectively. In operation, when an energized alpha particle enters the housing, it ionizes air molecules, thus producing ions which are collected by the conductive element by virtue of the potential between that element and the other elements. The voltage pulse is amplified by the amplifier circuit and then counted.

REFERENCES:
patent: 3093738 (1963-06-01), Mann et al.
patent: 3878496 (1975-04-01), Erickson
patent: 3984690 (1976-10-01), Marshall, III et al.
patent: 4218297 (1980-08-01), Henault et al.
patent: 4527064 (1985-07-01), Anderson
patent: 4804847 (1989-02-01), Uber, III
patent: 4859854 (1989-08-01), Kershner et al.
patent: 4868546 (1989-09-01), Dumkeck
patent: 4905579 (1990-03-01), Dame
The Journal Friday Home Report, 6/2/89, p. 26, "Electronic Radon Detectors are Effective", Dulley.

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