Neutron spectrometry around a high-energy electron-positron collider using a multi-sphere system with passive detectors

Roberto Bedogni, A. Esposito, M. Chiti, M. Angelone

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4 Citations (Scopus)

Abstract

At the INFN LNF (Frascati), the 510 MeV electron-positron collider DAΦNE is operating since 1997. The neutron fields in the areas around the accelerator were characterised using a Bonner sphere system. The sensitivity of the system was extended up to 102MeV by means of a lead loaded 12″ sphere. Recently developed thermoluminescence dosemeters (TLDs), with improved neutron sensitivity and gamma rejection properties, were used as central detectors. The new TLD-based spectrometric system was characterised by irradiation in quasi-monoenergetic or radionuclide neutron fields. In addition, numerical verifications with the Monte Carlo code MCNP were performed. This work addresses this new TLD-based spectrometer and presents the spectral measurements performed in a point of test around DAΦNE. The results are compared with those obtained, in the same point, with a previously validated Bonner sphere system based on an active6LiI(Eu) scintillator. © The Author 2007. Published by Oxford University Press. All rights reserved.
Original languageEnglish
Pages (from-to)541 - 545
Number of pages5
JournalRadiation Protection Dosimetry
Volume126
Issue number1-4
DOIs
Publication statusPublished - 2007
Externally publishedYes

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All Science Journal Classification (ASJC) codes

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

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