Radon detector

Details Radon detector Radon detector

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G01T 1/02 (2006.01) G01T 1/178 (2006.01) G01T 1/24 (2006.01) G11C 5/00 (2006.01) H01L 27/108 (2006.01) H01L 31/115 (2006.01)

Patent

CA 1293570

ABSTRACT A radon gas detector instrument comprising: a filter for trapping alpha radon daughters of said gas, an air pump for drawing ambient air through the filter, a DRAM devoid of an alpha particle barrier layer, located adjacent the filter, for exposure to alpha particles trapped by the filter, apparatus for cyclically relaxing all cells of the DRAM, waiting for a significant period of time for cells of the DRAM to become charged by said alpha particles, then reading the DRAM to determine the number of charged cell in the DRAM, a display connected to the relaxing, waiting and reading means for displaying a count of the number of charged cells in units correlated to the intensity of randon gas in the ambient air.

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