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View article: Activity standardization and determination of nuclear decay data of 212Pb at LNE-LNHB and first measurements in the SIR at BIPM
Activity standardization and determination of nuclear decay data of 212Pb at LNE-LNHB and first measurements in the SIR at BIPM Open
Lead-212/Bismuth-212 is a promising radiopharmaceutical with high therapeutic potential for Targeted Alpha Therapy. In this paper, the activity standardization of 212Pb in equilibrium with its progeny was addressed by means of s…
View article: Ambient humidity, the overlooked influencer of radioactivity measurements
Ambient humidity, the overlooked influencer of radioactivity measurements Open
When verifying the validity of the exponential-decay law through 137 precise decay rate measurement series at various nuclear laboratories, minor violations have been observed in the shape of annual cycles in the residuals with different a…
View article: The new international reference system for pure α- and pure β-emitting radionuclides and some electron capture decaying radionuclides by liquid scintillation counting
The new international reference system for pure α- and pure β-emitting radionuclides and some electron capture decaying radionuclides by liquid scintillation counting Open
View article: Final report of the new BIPM comparison BIPM.RI(II)-K1.Ra-223 of activity measurements of the radionuclide <sup>223</sup> Ra including the 2014 result of the NPL (United Kingdom), the 2014 result of the PTB (Germany) and the 2018 result of the LNE-LNHB (France)
Final report of the new BIPM comparison BIPM.RI(II)-K1.Ra-223 of activity measurements of the radionuclide <sup>223</sup> Ra including the 2014 result of the NPL (United Kingdom), the 2014 result of the PTB (Germany) and the 2018 result of the LNE-LNHB (France) Open
Main text Since 2014, 3 laboratories have submitted 3 samples of 223 Ra to the International Reference System (SIR) for activity comparison at the Bureau International des Poids et Mesures (BIPM), with comparison identifier BIPM.RI(II)-K1.…
View article: The CCRI(II)-K2.Fe-55.2019 key comparison of activity concentration measurements of a <sup>55</sup> Fe solution
The CCRI(II)-K2.Fe-55.2019 key comparison of activity concentration measurements of a <sup>55</sup> Fe solution Open
Main text A comparison of the activity concentration of an 55 Fe solution was organized by the POLATOM under the auspices of the CCRI(II). The solution was sent to thirteen laboratories; ready-to-measure sources were also prepared using th…
View article: The international reference system for pure β-particle emitting radionuclides: an investigation of the reproducibility of the results
The international reference system for pure β-particle emitting radionuclides: an investigation of the reproducibility of the results Open
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View article: Bias in the measurement of radon gas using ionization chambers: Application to SIR
Bias in the measurement of radon gas using ionization chambers: Application to SIR Open
View article: On decay constants and orbital distance to the Sun—part II: beta minus decay
On decay constants and orbital distance to the Sun—part II: beta minus decay Open
Claims that proximity to the Sun causes variations of decay constants at the permille level have been investigated for beta-minus decaying nuclides. Repeated activity measurements of 3H, 14C, 60Co, 85Kr, 90Sr, 124Sb, 134Cs, 137Cs, and 154E…
View article: On decay constants and orbital distance to the Sun—part III: beta plus and electron capture decay
On decay constants and orbital distance to the Sun—part III: beta plus and electron capture decay Open
The hypothesis that seasonal changes in proximity to the Sun cause variation of decay constants at permille level has been tested for radionuclides disintegrating through electron capture and beta plus decay. Activity measurements of 22Na,…
View article: On decay constants and orbital distance to the Sun—part I: alpha decay
On decay constants and orbital distance to the Sun—part I: alpha decay Open
Claims that proximity to the Sun causes variation of decay constants at permille level have been investigated for alpha decaying nuclides. Repeated decay rate measurements of 209Po, 226Ra, 228Th, 230U, and 241Am sources were performed over…
View article: Evidence against solar influence on nuclear decay constants
Evidence against solar influence on nuclear decay constants Open