F primary standard at ENEA-INMRI by three absolute techniques and calibration of a well-type IG11 ionization chamber

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A new18F primary standardization carried out at ENEA-INMRI by three different absolute techniques, i.e. 4πγNaI(Tl)γ high-efficiency counting, TDCR and 4πβ(LS)-γ[NaI(Tl)] coincidence counting method, allowed the calibration of a fixed well-reentrant IG11 ionization chamber (IC), with an uncertainty lower than 1%, and to check the calibration factor of a portable well-type IC NPL-CRC model, previously calibrated. By the new standard the ENEA-INMRI was linked to the BIPM International Reference System (SIR) through the BIPM SIR Transfer Instrument (SIRTI).
Original languageEnglish
Pages (from-to)410 - 413
Number of pages4
JournalApplied Radiation and Isotopes
Publication statusPublished - 1 Mar 2016
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Radiation

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