Measurements of natural concentrations of 129I in uranium ores by accelerator mass spectrometry

Elisabetta Boaretto; Dan Berkovits; George Hollos; Michael Paul

doi:10.1016/0168-583x(90)90369-6

Measurements of natural concentrations of ¹²⁹I in uranium ores by accelerator mass spectrometry

Elisabetta Boaretto, Dan Berkovits, George Hollos, Michael Paul

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

An accelerator mass spectrometry system is described and utilized for measurements of ¹²⁹I concentrations in natural and environmental samples. We report here on measurements of ¹²⁹I isotopic abundances in iodine reagents and in iodine of mineral origin and of ¹²⁹I concentrations in uranium ores of different origins. The ¹²⁹I isotopic abundances for two measured contemporary iodine reagents and for iodine from a deep underground brine are 1.3 × 10^-13 and about 4 × 10^-14, respectively. ¹²⁹I U ratios in the range 10^-13-10^-12 are measured and compared to a simple model of ¹²⁹I production by spontaneous and induced fission of uranium. No clear correlation with the uranium concentrations or residence times is observed.

Original language	English
Pages (from-to)	280-285
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	50
Issue number	1-4
DOIs	https://doi.org/10.1016/0168-583x(90)90369-6
State	Published - 3 Apr 1990
Externally published	Yes

Bibliographical note

Funding Information:
We should like to thank J. Fabryka-Martin for providing us with the reference sample no. 1 and blank sample no. 3 and for enlightening discussions, A. Kaufman for performing the measurements of uranium concentrations, Y. Kolodny for supplying us with the ore samples and K. Nishiizumi for providing us with the reference sample no. 2. Two of us (E.B. and M.P.) gratefully acknowledge the kind hospitality of the Gesellschaft fir Schwerionenforschung (Darmstadt), where part of this manuscript was written. This work was supported by a grant from the Fund for Basic Research of the Israel Academy of Sciences and Humanities.

Funding

We should like to thank J. Fabryka-Martin for providing us with the reference sample no. 1 and blank sample no. 3 and for enlightening discussions, A. Kaufman for performing the measurements of uranium concentrations, Y. Kolodny for supplying us with the ore samples and K. Nishiizumi for providing us with the reference sample no. 2. Two of us (E.B. and M.P.) gratefully acknowledge the kind hospitality of the Gesellschaft fir Schwerionenforschung (Darmstadt), where part of this manuscript was written. This work was supported by a grant from the Fund for Basic Research of the Israel Academy of Sciences and Humanities.

Funders	Funder number
Fund for Basic Research of the Israel Academy of Sciences and Humanities

Access to Document

10.1016/0168-583x(90)90369-6

Cite this

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title = "Measurements of natural concentrations of 129I in uranium ores by accelerator mass spectrometry",

abstract = "An accelerator mass spectrometry system is described and utilized for measurements of 129I concentrations in natural and environmental samples. We report here on measurements of 129I isotopic abundances in iodine reagents and in iodine of mineral origin and of 129I concentrations in uranium ores of different origins. The 129I isotopic abundances for two measured contemporary iodine reagents and for iodine from a deep underground brine are 1.3 × 10-13 and about 4 × 10-14, respectively. 129I U ratios in the range 10-13-10-12 are measured and compared to a simple model of 129I production by spontaneous and induced fission of uranium. No clear correlation with the uranium concentrations or residence times is observed.",

author = "Elisabetta Boaretto and Dan Berkovits and George Hollos and Michael Paul",

note = "Funding Information: We should like to thank J. Fabryka-Martin for providing us with the reference sample no. 1 and blank sample no. 3 and for enlightening discussions, A. Kaufman for performing the measurements of uranium concentrations, Y. Kolodny for supplying us with the ore samples and K. Nishiizumi for providing us with the reference sample no. 2. Two of us (E.B. and M.P.) gratefully acknowledge the kind hospitality of the Gesellschaft fir Schwerionenforschung (Darmstadt), where part of this manuscript was written. This work was supported by a grant from the Fund for Basic Research of the Israel Academy of Sciences and Humanities.",

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Measurements of natural concentrations of ¹²⁹I in uranium ores by accelerator mass spectrometry. / Boaretto, Elisabetta; Berkovits, Dan; Hollos, George et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 50, No. 1-4, 03.04.1990, p. 280-285.

Research output: Contribution to journal › Article › peer-review

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AU - Hollos, George

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AB - An accelerator mass spectrometry system is described and utilized for measurements of 129I concentrations in natural and environmental samples. We report here on measurements of 129I isotopic abundances in iodine reagents and in iodine of mineral origin and of 129I concentrations in uranium ores of different origins. The 129I isotopic abundances for two measured contemporary iodine reagents and for iodine from a deep underground brine are 1.3 × 10-13 and about 4 × 10-14, respectively. 129I U ratios in the range 10-13-10-12 are measured and compared to a simple model of 129I production by spontaneous and induced fission of uranium. No clear correlation with the uranium concentrations or residence times is observed.

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