CCRI Report Dr Wynand Louw President
Global forum for progressing the state-of-the art “the Consultative Committee for Ionizing Radiation includes all NMIs playing a major role in the establishment of equivalence and guides NMIs with emerging capabilities” >4 000 000 000 diagnostic X- The CCRI’s vision is a rays & nuclear world where ionizing medicine radiation can be used procedures p/a http://www.discoveryonline.co.za/marketing/oncology- site/cancer-sa-stats.html for the benefit of >4 000 000 humankind, confident cancer that the risks are treatments p/a constrained by accurate measurement >11 million radiation http://www-centre- saclay.cea.fr/fr/layout/set/print/Visite-guidee-de-Doseo workers www.bipm.org 2 The CCRI’s vision is a world where ionizing radiation can be used for the benefit of mankind, confident that the 11% of the world’s
Global forum for progressing the state-of-the art Primary standard (BIPM) (uncertainty 0,2 %-0,6 %) NMIs (uncertainty 0,6 %) Hospitals (uncertainty 1,5 %) Patients (uncertainty needed: better than 5 %) www.bipm.org 3 The CCRI’s vision is a world where ionizing radiation can be used for the benefit of mankind, confident that the 11% of the world’s
Global forum for progressing the state-of-the art Radiation exposures of aircrew in high altitude flight Lawrence W Townsend Journal of Radiological Protection, Volume 21, Number 1 NMISA, PTB, UCT, IRSN, NPL https://skift.com/2018/03/12/super-long-haul-trips- expose-flight-crews-and-passengers-to-cosmic- radiation/ Well-characterised quasi-monoenergetic neutron (QMN) sources reaching into the energy domain >40 MeV www.bipm.org 4 The CCRI’s vision is a world where ionizing radiation can be used for the benefit of mankind, confident that the 11% of the world’s
Global forum for progressing the state-of-the art 2015 The CCRI was made more inclusive by increasing – Membership to 8 (Countries active in and with full membership of all three Sections) – Official Observers to 14 2017 – Liaisons include IAEA, ICRU and JRC-Geel www.bipm.org 5
Global forum for progressing the state-of-the art 4 weeks The operation of the CCRI has been streamlined – 2015: 20 working days – 2017: 10 working days – 2019: 5 to 6 working days The CCRI meetings are aligned with international conferences, i.e. in 2019 it will be held back-to- back with the ICRM conference www.bipm.org 6
Determining KCRVs for radioactivity Short-lived Long-lived gamma Beta Alpha Low activity gamma emitters emitters emitters samples emitters • • • • • High precision Demand for Demand for High precision Demand for medical medical ionization scintillation environmental chambers (SIR) detector applications applications, and • • • Established Scoping studies environmental, Established decommissioning completed decommissioning, 1973 2009 applications nuclear forensics Sets the KCRV for 68 radionuclides A robust transfer instrument for comparisons of short-lived radionuclides Comparisons completed for 60 Co (medical imaging) (PTB), 231 Pa (NPL), 113 Sn (LNHB), 54 Mn (PTB), 131 I (NMISA), 166m Ho (NMISA) www.bipm.org 7
Facilitating dialogue between NMIs and stakeholders Joint use of DOSEO Facility – The use of accelerators for radiation therapy is growing – 11400 in use – An agreement has been signed with CEA-LIST for access to DOSEO – Beam characterization and instrument validation have been completed – The first two comparison exercises completed (KRISS and METAS), LNHB to start soon www.bipm.org 8
Facilitating dialogue between NMIs and stakeholders 109 of the 193 states listed by the UN participate in the BIPM's activities, covering 98 % of the world’s GDP according to 2016 World Bank data. www.bipm.org 9
Global comparability of measurements Marie Curie was born 150 years ago on 7 November 1867 The first international standard for ionizing radiation was prepared by Mme Curie and was placed at the BIPM in 1913 It was the basis of the international measurement system for about 50 years – the original Key Comparison Reference Value www.bipm.org 10
Global comparability of measurements Stakeholders: Input to CCRI Influences developments in CCRI Strategy IR Metrology at The CIPM MRA Committee & RMO NMIs and RMOs Review TCs Implements Improves Efficiency of CIPM MRA www.bipm.org 11
Global comparability of measurements CC Comparisons: 3 participants per RMO Less time to complete Pilots RMO comparisons SIM GULFMET EURAMET AFRIMETS APMP COOMET User Community has Comparability www.bipm.org 12
Global comparability of measurements Implementing the CIPM MRA review Risk Based Review Radioactivity MMM High U Medium U Low U Radionucli Method 1 Method 2 de Successful participation in a comparison Facile Intra Intra + Selected Be-7 for a ‘red’ entry is accepted as evidence review expert RMO Be-10 that the NMI can also standardize ‘green’ Expert(s) C-11 entries using the same method (but not C-14 vice-versa) Complex 1xRMO TC 1x RMO TC 1x RMO TC etc + expert + experts Intricate 2xRMO 3xRMO 4xRMO TCs TCs TCs “Core Quantity or Supports large number of Comprehensive services: the link is described CMCs” in the Quality System www.bipm.org 13
Global comparability of measurements Main Future Points Expand Ionizing radiation CBKT -Partnerships to share participation, i.e. expensive resources e.g. -Training courses for NMIs with --DOSEO for LINAC, upcoming capabilities -Secondments to BIPM IR and leading -- 137 Cs source off-site NMIs Actions Improve communication Improve the processes and development of to save time and money RMO capabilities www.bipm.org 14
wlouw@nmisa.org steven.judge@bipm.org www.bipm.org
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