A new passive radon-thoron discriminative measurement system

G. Sciocchetti, A. Sciocchetti, P. Giovannoli, P. DeFelice, F. Cardellini, G. Cotellessa, M. Pagliari

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4 Citations (Scopus)


A new passive radon-thoron discriminative measurement system has been developed for monitoring radon and thoron individually. It consists of a 'couple' of passive integrating devices with a CR39 nuclear track detector (NTD). The experimental prototype is based on the application of a new concept of NTD instrument developed at ENEA, named Alpha-PREM, acronym of piston radon exposure meter, which allows controlling the detector exposure with a patented sampling technique (Int. Eu. Pat. and US Pat.). The 'twin diffusion chambers system' was based on two A-PREM devices consisting of the standard device, named NTD-Rn, and a modified version, named NTD-Rn/Tn, which was set up to improve thoron sampling efficiency of the diffusion chamber, without changing the geometry and the start/stop function of the NTD-Rn device. Coupling devices fitted on each device allowed getting a system, which works as a double-chamber structure when deployed at the monitoring position. In this paper both technical and physical aspects are considered. © The Author 2010. Published by Oxford University Press. All rights reserved.
Original languageEnglish
Article numberncq241
Pages (from-to)462 - 467
Number of pages6
JournalRadiation Protection Dosimetry
Issue number4
Publication statusPublished - Nov 2010
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Radiation
  • Public Health, Environmental and Occupational Health

Cite this

Sciocchetti, G., Sciocchetti, A., Giovannoli, P., DeFelice, P., Cardellini, F., Cotellessa, G., & Pagliari, M. (2010). A new passive radon-thoron discriminative measurement system. Radiation Protection Dosimetry, 141(4), 462 - 467. [ncq241]. https://doi.org/10.1093/rpd/ncq241