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Measurement of absolute K X-ray emission intensities in the decay of Rh-103m

Jonathan Riffaud 1 Philippe Cassette 1 Didier Lacour 1 Valérie Lourenço 1 Isabelle Tartes 1 Mark Kellett 1 Margot Corbel 1 Marie-Christine Lépy 1 C. Domergue 2 C. Destouches 2 H. Carcreff 3 O. Vigneau 4
1 LNHB - Laboratoire National Henri Becquerel
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
2 LDCI - Laboratoire de Dosimétrie, de Contrôle-commande et Instrumentation
SPESI - Service Physique EXpérimentale, d'essais en Sûreté et d'Instrumentation : DEN/DER
4 LARC - Laboratoire d'Analyses Radiochimiques et Chimiques
SA3E - Service d'Analyses, d'Elaboration, d'Expérientations et d'Examens des combustibles : DEN/DEC/SA3E
Abstract : A new experiment was designed to measure the photon emission intensities in the decay of Rh-103m. The rhodium samples were activated in the ISIS experimental nuclear reactor at CEA Saclay. The procedure includes an absolute activity measurement by liquid scintillation counting using the Triple-to-Double Coincidence Ratio method, followed by X-ray spectrometry using a high-purity germanium detector to determine the photon emission intensities. The new result I-x = 0.0825 (17)) is derived with a significant reduction of the uncertainty.
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Submitted on : Thursday, May 31, 2018 - 7:55:29 AM
Last modification on : Wednesday, March 3, 2021 - 3:34:01 PM




Jonathan Riffaud, Philippe Cassette, Didier Lacour, Valérie Lourenço, Isabelle Tartes, et al.. Measurement of absolute K X-ray emission intensities in the decay of Rh-103m. Applied Radiation and Isotopes, Elsevier, 2018, 134 (SI), pp.399-405. ⟨10.1016/j.apradiso.2017.10.003⟩. ⟨cea-01803820⟩



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