| Title | Calibration with MCNP of NaI detector for the determination of natural radioactivity levels in the field |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2016 |
| Authors | Cinelli, Giorgia, Tositti L., Mostacci D., and Baré J. |
| Journal | Journal of Environmental Radioactivity |
| Volume | 155-156 |
| Pagination | 31-37 |
| ISSN | 0265931X |
| Keywords | article, Calibration, comparative study, Computer simulation, controlled study, devices, Efficiency calibration, experimental study, Experimental verification, Gamma, gamma radiation, Gamma ray spectrometers, gamma ray spectrometry, gamma spectrometry, in situ measurement, instrumentation, Intelligent systems, limit of detection, Monte Carlo analysis, Monte Carlo codes, Monte Carlo method, Monte Carlo methods, NaI detector, natural radioactivity, On-site measurement, photon, potassium 40, quantitative analysis, Quantitative assessments, Radiation, radiation detection, radiation detector, radiation monitoring, radioactivity, radium 226, Sodium Iodide, Spectrometry, thorium 232, uranium 238 |
| Abstract | In view of assessing natural radioactivity with on-site quantitative gamma spectrometry, efficiency calibration of NaI(Tl) detectors is investigated. A calibration based on Monte Carlo simulation of detector response is proposed, to render reliable quantitative analysis practicable in field campaigns. The method is developed with reference to contact geometry, in which measurements are taken placing the NaI(Tl) probe directly against the solid source to be analyzed. The Monte Carlo code used for the simulations was MCNP. Experimental verification of the calibration goodness is obtained by comparison with appropriate standards, as reported. On-site measurements yield a quick quantitative assessment of natural radioactivity levels present (40K, 238U and 232Th). On-site gamma spectrometry can prove particularly useful insofar as it provides information on materials from which samples cannot be taken. © 2016 The Authors. |
| Notes | cited By 16 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958972550&doi=10.1016%2fj.jenvrad.2016.02.009&partnerID=40&md5=1b78065eceddb18e3a830a17c8d8a4e6 |
| DOI | 10.1016/j.jenvrad.2016.02.009 |
| Citation Key | Cinelli201631 |
