The international reference system for beta-particle emitting radionuclides: Validation through the pilot study CCRI(II)-P1.Co-60

Romain Coulon; Monica Aguiar Leobino da Silva; Emma Bendall; Denis E Bergeron; Christophe Bobin; Ivana Bonková; Angus H H Bowan; Broda Ryszard; Marco Capogni; Mauro Capone; Pierluigi Carconi; Philippe Cassette; T Cessna Jeffrey; Emily L Clark; Sean Collins; Sammy Courte; Marek Czudek; Carlos José da Silva; Johnny de Almeida Rangel; Pierino De Felice; Fuyou Fan; Aldo Fazio; Ryan P Fitzgerald; Carole Fréchou; Raphael Galea; Vincent Gressier; Akira Iwahara; Steven M Judge; Christine M B Keevers; John Keightley; Karsten Kossert; Matej Krivošík; D B Kulkarni; Lizbeth Laureano-Perez; Edyta Lech; Anderson Leiras; Juncheng Liang; Paulo Alberto Lima da Cruz; Ronaldo Lins da Silva; Anna Listkowska; Haoran Liu; Meiling Liu; Joline Lubbe; Carine Michotte; Kimberly Moore; Ole Nähle; Manuel Nonis; Andy Pearce; Leticia Pibida; André L L Quadros; Natasha Ramirez; Anuradha Ravindra; Benoit Sabot; Paweł Saganowski; V Sathian; Michael L Smith; Ritu Sharma; Marcell P Takács; Milton W van Rooy; Robert Shearman; Martin J van Staden; W M van Wyngaardt; Zhijie Yang; Melek Zarifi; Ming Zhang; Tomasz Ziemek

doi:10.1016/j.apradiso.2023.110945

The international reference system for beta-particle emitting radionuclides: Validation through the pilot study CCRI(II)-P1.Co-60

Appl Radiat Isot. 2023 Oct:200:110945. doi: 10.1016/j.apradiso.2023.110945. Epub 2023 Jul 26.

Authors

Romain Coulon¹, Monica Aguiar Leobino da Silva², Emma Bendall³, Denis E Bergeron⁴, Christophe Bobin⁵, Ivana Bonková⁶, Angus H H Bowan⁷, Broda Ryszard⁸, Marco Capogni⁹, Mauro Capone⁹, Pierluigi Carconi⁹, Philippe Cassette⁵, T Cessna Jeffrey⁴, Emily L Clark⁷, Sean Collins³, Sammy Courte¹⁰, Marek Czudek⁸, Carlos José da Silva², Johnny de Almeida Rangel², Pierino De Felice⁹, Fuyou Fan¹¹, Aldo Fazio⁹, Ryan P Fitzgerald⁴, Carole Fréchou⁵, Raphael Galea¹², Vincent Gressier¹⁰, Akira Iwahara², Steven M Judge¹⁰, Christine M B Keevers⁷, John Keightley³, Karsten Kossert¹³, Matej Krivošík⁶, D B Kulkarni¹⁴, Lizbeth Laureano-Perez⁴, Edyta Lech⁸, Anderson Leiras², Juncheng Liang¹¹, Paulo Alberto Lima da Cruz², Ronaldo Lins da Silva², Anna Listkowska⁸, Haoran Liu¹¹, Meiling Liu¹¹, Joline Lubbe¹⁵, Carine Michotte¹⁰, Kimberly Moore¹², Ole Nähle¹³, Manuel Nonis¹⁰, Andy Pearce³, Leticia Pibida⁴, André L L Quadros², Natasha Ramirez³, Anuradha Ravindra¹⁴, Benoit Sabot⁵, Paweł Saganowski⁸, V Sathian¹⁴, Michael L Smith⁷, Ritu Sharma¹⁴, Marcell P Takács¹³, Milton W van Rooy¹⁵, Robert Shearman³, Martin J van Staden¹⁵, W M van Wyngaardt⁷, Zhijie Yang¹¹, Melek Zarifi⁷, Ming Zhang¹¹, Tomasz Ziemek⁸

Affiliations

¹ Bureau International des Poids et Mesures, Pavillon de Breteuil, F-92312, Sèvres Cedex, France. Electronic address: romain.coulon@bipm.org.
² Laboratório Nacional de Metrologia das Radiações Ionizantes, Instituto de Radioproteção e Dosimetria, LNMRI/IRD, Av. Salvador Allende, 3773, CEP 22783-127, Barra da Tijuca, Rio de Janeiro, RJ, Brazil.
³ National Physical Laboratory, Hampton Road Middlesex, TW11 0LW, Teddington, United Kingdom.
⁴ National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899, USA.
⁵ Université Paris-Saclay, CEA, List, Laboratoire National Henri Becquerel (LNE-LNHB), F-91120, Palaiseau, France.
⁶ Slovenský Metrologický ústav, Karloveská 63, 842 55, Bratislava, Slovakia.
⁷ Australian Nuclear Science and Technology Organisation, Australia.
⁸ National Centre for Nuclear Research Radioisotope Centre POLATOM, 05-400, Otwock, Poland.
⁹ ENEA-Italian National Institute of Ionizing Radiation Metrology, Via Anguillarese - 301, I-00123, Roma, (IT), Italy.
¹⁰ Bureau International des Poids et Mesures, Pavillon de Breteuil, F-92312, Sèvres Cedex, France.
¹¹ National Institute of Metrology (NIM), 100029, Beijing, China.
¹² National Research Council of Canada, 1200 Montreal Road, Ottawa, ON, K1A0R6, Canada.
¹³ Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116, Braunschweig, Germany.
¹⁴ Bhabha Atomic Research Centre, Mumbai, India.
¹⁵ National Metrology Institute of South Africa, 15 Lower Hope Road, Rosebank, Cape Town, 7700, South Africa.

PMID: 37515859
DOI: 10.1016/j.apradiso.2023.110945

Abstract

The Bureau International des Poids et Mesures (BIPM) is developing a new transfer instrument to extend its centralized services for assessing the international equivalence of radioactive standards to new radionuclides. A liquid scintillation counter using the triple/double coincidence ratio method is being studied and tested in the CCRI(II)-P1.Co-60 pilot study. The pilot study, involving 13 participating laboratories with primary calibration capabilities, validated the approach against the original international reference system based on ionization chambers, which has been in operation since 1976. The results are in agreement and an accuracy suitable for purpose, below 5×10^-4, is achieved. The pilot study also reveals an issue when impurities emitting low-energy electrons are present in the standard solution, which have a different impact on liquid scintillation counting compared to other primary measurement methods.

Keywords: ESIR; International system of reference; Liquid scintillation counting; Radionuclide metrology; SIR; Standardization.