title: A note on "an erroneous formula in use for estimating radon exhalation rates from samples using sealed can technique".
abstract: In this note, we point out a serious fallacy in a formula that has appeared in literature for calculating the (222)Rn exhalation rates using the Solid-State Nuclear Track Detector (SSNTD) based sealed can technique. It is shown that this formula underestimates true exhalation rates by a factor of more than 10(6). Several publications have used this formula instead of the well-known Abu-Jarad formula and have reported unrealistically low (µBq/m(2)/d) surface exhalation rates for normal materials.
authors.affiliation: Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India.
authors.forename: Y S
authors.initials: YS
authors.lastname: Mayya
authors.affiliation: Radiological Physics & Advisory Division, Bhabha Atomic Research Centre, Mumbai 400085, India. Electronic address: bijay@barc.gov.in.
authors.forename: B K
authors.initials: BK
authors.lastname: Sahoo
keywords: Can; Exhalation; Radon; SSNTD