| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1887291 | Zeitschrift für Medizinische Physik | 2009 | 11 Pages |
Abstract
The intracorporal deposition of radon decay products was determined on four persons after 40 and 30Â min respectively in radon water with about 1500Â Bq/L by whole-body gamma spectrometry. The measurements started about 212Â h after exposure. In addition, the radon activity concentration of inspiratory and expiratory air was measured on one person during and after exposure and the deposition of radon decay products on the skin was measured on another person. The radon activity leaving the body with the expiratory air during exposure in the water (called “radon transfer”) amounts to about 800Â Bq. An intracorporal radon activity immediately after therapeutic exposure of about 3000Â Bq was obtained as a result of first measurements by extrapolation from measurements starting about 2 1/2 hours later. Additional studies are necessary. There are indications that both the radon transfer and the intracorporal deposition can be increased by exposure in mixed radon-CO2 water.
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Authors
Wolfgang A. Grunewald, Günther Just, Jürgen Petzold, Henning von Philipsborn,