Fast determination of indoor radon (222Rn) concentration using liquid scintillation counting
نویسندگان
چکیده
The indoor 222Rn radionuclide was directly absorbed in typical 20 ml glass scintillation vials by passing -3 dm3 of ambient air through 16 ml of water-immiscible non-volataile scintillation cocktail Ultima-Gold F for 10 min. The activity of radon and its two α-emitting daughters: 218Po and 214Po, was determined with the BetaScout low-background liquid scintillation counter. The limit of 222Rn detection is 9 Bq/m3, and the quantification limit with 20% relative accuracy is 28 Bq/m3. The results of the indoor Rn measurement in different houses showed good consistency with results obtained from a Sarad EQF 3220 device.
منابع مشابه
222Rn and 226Ra activity concentrations in groundwaters of southern Poland: new data and selected genetic relations
Since 2008, the authors have been conducting research into 222Rn and 226Ra activity concentrations in shallow circulation groundwaters in southern Poland. Measurements have been performed with a liquid-scintillation method and ultra low-level liquid-scintillation spectrometers α/β Quantulus 1220. The research carried out so far has demonstrated that in the Sudetes groundwaters with high activit...
متن کاملStaff exposure rate in Mahallat hot spring region
Background: High level radiation areas have been recognized on various parts of the earth. Mahallat hot spring region is one of these areas. Study of exposure in these areas can be helpful in investigating the effects of ionizing radiation. Internal and external exposure to the staff was studied. Materials and Methods: Used materials and instruments include: RSS-112 ionizing chamber fo...
متن کاملRn-222 Determination in Drinking Water Samples in a Region with Elevated Natural Radioactivity in Brazil: Comparison Between Liquid Scintillation Counting and Gamma Spectrometry
Radon is a naturally occurring noble gas. It can easily diffuse into the environment. It is found in waters which are in contact with rocks having high uranium concentration (Desideri et al., 2005). Radon gas is considered to be one of the natural radioactive elements with greatest mobility in the terrestrial crust. Conventional chemical analysis of water does not place emphasis on the study of...
متن کاملIndoor 222Rn and 220Rn variations: Evidence for Boyle’s law
Background: Radon and its daughter product are a major source of natural radiation exposure, the measurement of radon concentration in dwellings is assuming ever increasing importance. It is known from recent surveys in many countries that radon and its progeny contributes significantly to total inhalation dose and is well established that radon when inhaled in large quantity causes lu...
متن کاملAssessment of Effective Dose Equivalent from Internal Exposure to 222Rn in Ramsar City
Introduction In this study, effective dose equivalent for the public due to internal exposure to 222radon (222Rn) was evaluated in three regions of Ramsar, a northern coastal city in Iran. Materials and Methods Measurements were carried out using a radon monitoring device. Outdoor and indoor radon concentrations were measured within 24 hours with an integration in...
متن کامل