Radiant energy – Geological testing or irradiation
Patent
1987-10-27
1989-07-11
Fields, Carolyn E.
Radiant energy
Geological testing or irradiation
250255, G01T 100
Patent
active
048474940
ABSTRACT:
A radon detection package permits improved retention of radon, while limiting absorption of moisture which otherwise drives radon off from the package. A pouch of radon absorbing material is supported during a testing period, preferably in a vertical position, and substantially surrounded during such period by a hood-like envelope of radon impermeable material. The hood-like envelope includes an opening, preferably directed downward, which permits access of air and radon to the pouch of radon trapping material. A foldable cardboard wedge is inserted into the opening of the envelope structure for providing a channel along the pouch which admits air and radon into the package so as to controllably expose the pouch. Further in accordance with the present method, the foldable cardboard insert may be removed upon completion of a testing period, and the envelope-like structure closed around the pouch to form a self-mailer unit, which may be sent to a processing plant for detection of the amount of radon in the pouch.
REFERENCES:
patent: 4700070 (1987-10-01), Kovac
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