Radiant energy – Geological testing or irradiation – With sampling
Patent
1987-03-31
1989-03-14
Fields, Carolyn E.
Radiant energy
Geological testing or irradiation
With sampling
2504721, 250253, G01V 500
Patent
active
048126489
ABSTRACT:
A method of and apparatus for measuring radon concentration in air involving the provision of a detector containing a passive adsorbent of radon and a desiccant. The desiccant can selectively retain an amount of water weighing from about 25% to about 50% of the weight of the adsorbent. The detector is exposed to a finite air space to be measured for a predetermined time period. The radon is liberated from the passive adsorbent so that the alpha particles and beta particles, which are the signature of radon radioactivity, are counted by liquid scintillation technique.
REFERENCES:
patent: 2337306 (1943-12-01), Barnes
patent: 3438241 (1969-04-01), McKinley
patent: 3784674 (1974-01-01), Stein
patent: 3940471 (1976-02-01), Favre
patent: 4104523 (1978-08-01), Wolfert
patent: 4277259 (1981-07-01), Rounbehler et al.
patent: 4327575 (1982-05-01), Locker
patent: 4423005 (1983-12-01), Murtaugh et al.
patent: 4700070 (1987-10-01), Kovac
Breslin et al., "An Improved-Time-Integr. Radon Mon.", NEA Specialist Meeting on Dosimetry . . . for Radon, Paris, Nov. 20-22, 1978.
B. L. Cohen & R. Nason, A Diffusion Barrier Charcoal Adsorption Collector for Measuring Rn Concentrations in Indoor Air, Aug. 1986, 457-463, Health Physics, vol. 50, No. 4.
H. M. Prichard & K. Marlen, Desorption of Radon from Activated Carbon Into a Liquid Scintillator, 1983, 155-157, Analytical Chem., vol. 55.
A. C. George, Passive, Integrated Measurement of Indoor Radon Using Activated Carbon, Apr. 1984, 867-872, Health Physics, 46(4).
H. M. Prichard & K. Marien, a Passive Diffusion .sup.222 Rn Sampler Based on Activated Carbon Adsorption, Jun. 1985, 797-803, Health Physics, vol. 48, No. 6.
Brandeis University
Fields Carolyn E.
Hanig Richard
LandOfFree
Method of and passive apparatus for detecting radon does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and passive apparatus for detecting radon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and passive apparatus for detecting radon will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-895153