Calibration of PADC-based neutron area dosemeters in the neutron field produced in the treatment room of a medical LINAC

R. Bedogni, C. Domingo, A. Esposito, A. Gentile, M. J. García-Fusté, M. De-San-Pedro, L. Tana, F. D'Errico, R. Ciolini, A. Di Fulvio

Research output: Contribution to journalArticlepeer-review


PADC-based nuclear track detectors have been widely used as convenient ambient dosemeters in many working places. However, due to the large energy dependence of their response in terms of ambient dose equivalent (H L(10)) and to the diversity of workplace fields in terms of energy distribution, the appropriate calibration of these dosemeters is a delicate task. These are among the reasons why ISO has introduced the 12789 Series of Standards, where the simulated workplace neutron fields are introduced and their use to calibrate neutron dosemeters is recommended. This approach was applied in the present work to the UAB PADC-based nuclear track detectors. As a suitable workplace, the treatment room of a 15 MV Varian CLINAC DHX medical accelerator, located in the Ospedale S. Chiara (Pisa), was chosen. Here the neutron spectra in two points of tests (1.5 m and 2 m from the isocenter) were determined with the INFN-LNF Bonner Sphere Spectrometer equipped with Dysprosium activation foils (Dy-BSS), and the values of HL(10) were derived on this basis. The PADC dosemeters were exposed in these points. Their workplace specific H*(10) responses were determined and compared with those previously obtained in different simulated workplace or reference (ISO 8529) neutron fields.

Original languageEnglish (US)
Pages (from-to)78-81
Number of pages4
JournalRadiation Measurements
StatePublished - Mar 2013
Externally publishedYes


  • Activation foils
  • Bonner spheres
  • CR-39
  • Dysprosium
  • FRUIT unfolding code
  • Medical LINAC
  • Neutron dosimetry
  • Neutron spectrometry
  • PADC

ASJC Scopus subject areas

  • Radiation
  • Instrumentation


Dive into the research topics of 'Calibration of PADC-based neutron area dosemeters in the neutron field produced in the treatment room of a medical LINAC'. Together they form a unique fingerprint.

Cite this