Novel panorama megasize environmental radon monitor. (April 2021)

• Record Type: Journal Article
• Authors: Sohrabi, M.; Ghahremani, M.
• Is Part Of: Radiation physics and chemistry. Volume 181(2021)
• Publication Date: 2021-04
• Subjects: Novel megasize radon monitor -- polycarbonate detector -- Megasize electrochemical etching -- Activated carbon fabric -- Megasize environmental monitor; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2020.109325
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: A novel panorama megasize environmental radon monitor (MS-ERM) is introduced using megasize polycarbonate track detector (PCTD) having some activated carbon fabric (ACF) layers on some locations. The MS-ERM is processed by panorama single-cell megasize electrochemical etching image processing system. The MS-ERM is 75 × 35 cm 2 large (~1000 μm thick) which can monitor and map large environmental areas. Circular ACF layers placed on the MS-ERM can adsorb radon on its carbon active sites and enhance PCTD response by an amplification factor of ~1.5 times. The panorama MS-ERM is position sensitive resembling infinite number of single detectors assembled for providing data matrix of radon concentrations of large environmental area. A specially-designed radon chamber was constructed with 226 Ra containing soil at its base for exposing MS-ERMs. Radon concentration is maximum over the radon source and decreases to a constant 222 Rn concentration from few centimeters over the source up to top of the radon chamber. Highlights: A novel panorama megasize environmental radon monitor (MS-ERM) is introduced. MS-ERM is polycarbonate detector (75 × 35 cm 2 ) with activated carbon fabrics on. MS-ERM is processed in panorama single-cell megasize ECE chamber system. ACF layers on MS-ERM adsorbs radon and enhances response by ~1.6 times. MS-ERM is a novel radon monitoring/mapping method in large environmental areas.