Details

Autor(en) / Beteiligte

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

Titel

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

Ist Teil von

• Applied radiation and isotopes, 2023-10, Vol.200, p.110945-110945, Article 110945

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2023

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• 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. •Validation of new BIPM transfer instrument ESIR for key comparisons.•Based on a Triple-to-Double Coincidence Ratio (TDCR) system.•Realisation of a key comparison exercise including 13 participating laboratories.•Discovered an issue with impurity contained in standard solutions of 60Co.•ESIR results agree with SIR system with standard uncertainty below 5 × 10−4.