On the use of solid 133Ba sources as surrogate for liquid 131I in SPECT/CT calibration: a European multi-centre evaluation

Autor: Johannes Tran-Gia, Ana M. Denis-Bacelar, Kelley M. Ferreira, Andrew P. Robinson, Christophe Bobin, Lara M. Bonney, Nicholas Calvert, Sean M. Collins, Andrew J. Fenwick, Domenico Finocchiaro, Federica Fioroni, Katerina Giannopoulou, Elisa Grassi, Warda Heetun, Stephanie J. Jewitt, Maria Kotzasarlidou, Michael Ljungberg, Valérie Lourenço, Daniel R. McGowan, Jamie Mewburn-Crook, Benoit Sabot, James Scuffham, Katarina Sjögreen Gleisner, Jaroslav Solc, Cheick Thiam, Jill Tipping, Jill Wevrett, The MRT Dosimetry Collaboration, Michael Lassmann

Publikováno v: EJNMMI Physics, Vol 10, Iss 1, Pp 1-16 (2023)

Abstract Introduction Commissioning, calibration, and quality control procedures for nuclear medicine imaging systems are typically performed using hollow containers filled with radionuclide solutions. This leads to multiple sources of uncertainty, m

Externí odkaz: https://doaj.org/article/bb9afadacc904990ac4fa5a74cd82d62

Determination of L-X ray absolute emission intensities of $^{238}$Pu, $^{244}$Cm, $^{237}$Np and $^{233}$Pa radionuclides using a metallic magnetic calorimeter

Autor: Valérie Lourenço, Matias Rodrigues, R. Mariam, Martin Loidl, Sylvie Pierre

Publikováno v: Spectrochimica Acta Part B: Atomic Spectroscopy
Spectrochimica Acta Part B: Atomic Spectroscopy, 2022, 187, pp.106331. ⟨10.1016/j.sab.2021.106331⟩

International audience; Energy dispersive photon spectrometry is a common analysis technique to quantify radionuclides present in a sample, the analysis is based on the knowledge of the photon emission intensities specific to each radionuclide. Among

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::795e726fc40a1f2d6c51c39da5295ca5
https://hal.science/hal-03554683

Development of alpha-emitting large area radioactive surface sources tailored for decommissioning

Autor: Lucille Chambon, Dilan Tüzün, Christophe Bobin, Margot Corbel, Valérie Lourenço

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2022, 1033, pp.166732. ⟨10.1016/j.nima.2022.166732⟩

International audience; The reliability of contamination measurements during decommissioning and dismantling of used nuclear facilities is of the utmost importance for the rest of the process and an efficient waste management. Therefore, the surface

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3a03632f19cdbdeeb8f036c0aae8ccc
https://doi.org/10.1016/j.nima.2022.166732

Dose verification and calibration of the Cyberknife® by EPR/alanine dosimetry

Autor: Thomas Lacornerie, Romain Popoff, Jean-Marc Bordy, Tristan Garcia, Valérie Lourenço

Publikováno v: Radiation Measurements. 46:952-957

Standard calibration protocols in radiotherapy (AAPM TG-51 and IAEA TRS 398) recommend a 10 × 10 cm2 irradiation field at a distance of 100 cm. However, the specific geometry of the Cyberknife machine enables only circular radiation beams with a max

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db1a8e334640d9835b808f1a539bbb8e
https://doi.org/10.1016/j.radmeas.2011.03.031

Results of the EURAMET.RI(II)-S6.I-129 supplementary comparison

Autor: Eduardo García-Toraño, Timotheos Altzitzoglou, Pavel Auerbach, Marie-Martine Bé, Valérie Lourenço, Christophe Bobin, Philippe Cassette, Rainer Dersch, Karsten Kossert, Ole Nähle, Virginia Peyrés, Stefaan Pommé, Andrej Rozkov, Anabel Sanchez-Cabezudo, Jana Sochorov́

Publikováno v: Metrologia
Metrologia, 2015, 52 (1A), pp.06017-06017. ⟨10.1088/0026-1394/52/1A/06017⟩
Metrologia, IOP Publishing, 2015, 52 (1A), pp.06017-06017. ⟨10.1088/0026-1394/52/1A/06017⟩

International audience; An international comparison of the long-lived gamma-ray emitter 129I has been recently completed. A total of 5 laboratories measured a solution prepared by Centro de Investigaciones Energéticas, Medioambientales y Tecnológic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a1a9f06c282fac580768804aba60c32
https://hal.science/hal-01865021