Cascade filtration theory : a basis for studying suspended particles /

A method is suggested for measuring the radioactivity of fall-out particles in atomic clouds as a function of their size. This method consists of drawing the particles through a bank of filters in series and measuring the radioactivity retained on each filter. Reduction of these data to desired distribution function is indicated by a matrix equation.Ntis: ad079501.Accession No.: 59465.Misc. No.: USNRDL-TR-61."19 August 1955."Includes bibliographical references.A method is suggested for measuring the radioactivity of fall-out particles in atomic clouds as a function of their size. This method consists of drawing the particles through a bank of filters in series and measuring the radioactivity retained on each filter. Reduction of these data to desired distribution function is indicated by a matrix equation.Mode of access: Internet