• Article  

      Determination of aquatic radon by liquid scintillation counting and airborne radon monitoring system 

      Kiliari, T.; Pashalidis, Ioannis (2008)
      This paper presents an airborne radon monitoring (RM) system for aquatic radon determination after out-gassing of radon from the aqueous sample and compares this method with the standard ASTM method for radon analysis in ...
    • Article  

      Indoor radon (222Rn) concentration measurements in Cyprus using high-sensitivity portable detectors 

      Anastasiou, Tassos; Tsertos, Haralambos; Christofides, Stelios; Christodoulides, George D. (2003)
      Using high-sensitivity radon (222Rn) portable detectors (passive electronic devices of the type RADIM3), the airborne 222Rn concentration in the interior of various Cypriot buildings and dwellings was measured. For each ...
    • Article  

      Inversion of noisy Radon transform by SVD based needlets 

      Kerkyacharian, G.; Kyriazis, George C.; Le Pennec, E.; Petrushev, P.; Picard, D. (2010)
      A linear method for inverting noisy observations of the Radon transform is developed based on decomposition systems (needlets) with rapidly decaying elements induced by the Radon transform SVD basis. Upper bounds of the ...
    • Article  

      Quality control for structural credit risk models 

      Andreou, Elena; Ghysels, Eric (2008)
      Over the last four decades, a large number of structural models have been developed to estimate and price credit risk. The focus of the paper is on a neglected issue pertaining to fundamental shifts in the structural ...
    • Article  

      Radon emanation from phosphogypsum and related mineral samples in Cyprus 

      Lysandrou, Michaela; Charalambides, Antonios; Pashalidis, Ioannis (2007)
      Radon emanation rates from phosphogypsum samples have been determined to assess the radiological impact of radon emanated from a phosphogypsum disposal site. For comparison corresponding measurements were conducted with ...
    • Article  

      Radon levels in Cyprus 

      Sarrou, I.; Pashalidis, Ioannis (2003)
      Radon levels in atmospheric and aquatic systems in Cyprus have recently been measured using the radon monitor Alpha Guard. Indoor and outdoor radon levels were obtained in situ, whereas analysis of radon concentrations in ...
    • Article  

      Systematic grid-based radon concentration measurements in the urban areas of Cyprus 

      Erodotou, E.; Socratous, M.; Parpottas, Yiannis; Tsertos, Haralambos (2015)
      A comprehensive grid-based study of indoor Rn concentration in all accessible urban areas of the Republic of Cyprus, where 67.3% of the population resides, is presented. During the years 2004-2012, a total of 407 measurements ...
    • Article  

      Systematic grid-wise radon concentration measurements and first radon map in Cyprus 

      Theodoulou, G.; Parpottas, Yiannis; Tsertos, Haralambos (2012)
      A systematic study of the indoor airborne radon concentration in the central part of the Nicosia district was conducted, using high-sensitivity active radon portable detectors of the type "RADIM3A". From a total of 108 ...