title: Seasonal variability of equilibrium factor and unattached fractions of radon and thoron in different regions of Punjab, India.
abstract: A survey was conducted to estimate equilibrium factor and unattached fractions of radon and thoron in different regions of Punjab state, India. Pin hole based twin cup dosimeters and direct progeny sensor techniques have been utilized for estimation of concentration level of radon, thoron and their progenies. Equilibrium factor calculated from radon, thoron and their progenies concentration has been found to vary from 0.15 to 0.80 and 0.008 to 0.101 with an average value of 0.44 and 0.036 for radon and thoron respectively. Equilibrium factor for radon has found to be highest in winter season and lowest in summer season whereas for thoron highest value is observed in winter and rainy season and lowest in summer. Unattached fractions of radon and thoron have been found to vary from 0.022 to 0.205 and 0.013 to 0.212 with an average value of 0.099 and 0.071 respectively. Unattached fractions have found to be highest in winter season and lowest in rainy and summer season.
authors.affiliation: Department of Physics, Guru Nanak Dev University, Amritsar, 143005, India. Electronic address: skomal2304@gmail.com.
authors.forename: Komal
authors.initials: K
authors.lastname: Saini
authors.affiliation: Department of Physics, Guru Nanak Dev University, Amritsar, 143005, India.
authors.forename: Parminder
authors.initials: P
authors.lastname: Singh
authors.affiliation: Department of Physics, Guru Nanak Dev University, Amritsar, 143005, India.
authors.forename: Prabhjot
authors.initials: P
authors.lastname: Singh
authors.affiliation: Department of Physics, Guru Nanak Dev University, Amritsar, 143005, India.
authors.forename: B S
authors.initials: BS
authors.lastname: Bajwa
authors.affiliation: Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
authors.forename: B K
authors.initials: BK
authors.lastname: Sahoo
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis / Q000706:statistics & numerical data*; D007194:India; D011834:Radiation Monitoring; D011886:Radon / Q000032:analysis*; D012621:Seasons
chemical_list: D000396:Air Pollutants, Radioactive; D011886:Radon
keywords: DTPS/DRPS; Equilibrium factor; Pin hole based twin cup dosimeter; Radon; Thoron; Unattached fraction