REPORT ON BIOLOGICAL, MEDICAL AND BIOPHYSICS PROGRAMS PART I - SEMIANNUAL REPORT OF RADIOLOGICAL PHYSICS DIVISION PART II - QUARTERLY REPORT OF BIOLOGICAL AND MEDICAL RESEARCH DIVISION

摘要

The values of body radium for the subjects (Table I-l) were calculated from the rate of expiration of radon in the breath, assuming that 70 per cent of the radon from body radium is expired. These values include corrections for residual atmospheric radon in the breath which were based on the concentration of radon in room air,(3) the length of time radon-free air was berthed, and the volume of air collected for each sample. Each value in the fourth column is the average of 2 or 3 determinations made during a single run of 16 hours or more;duplicate runs were made on 3 subjects. The estimates of the amount of radium retained from intake at Statesville only which are given in the last column, were compared with a power function expression for retention after a single dose, as described later.