Phase investigation of uranium–vanadium alloy using multiple techniques

Michal Brandis, Gregory Gershinsky, Arnon Rubinshtein, Yevgeni Zakon, Maor Assulin, Amiram Moyal, Eyal Elish, Arnon Grafit, Aldo Shemesh, Assaf Bolker, Ofer Aviv, Noa Fruchter, Nir M. Yitzhak, Sagi Nissim, Zohar Yungrais, Alexander Zinger, Lena Plastovez, Noam Gonen, Itzhak Sedgi, Itzhak HershkoItzhak Halevy, Ruth Yam, Tzach Mackmal, Yinon Ben David, Dan Breitman, Dan Berkovits, Boaz Assaf, Hanan Datz

Research output: Contribution to journalArticlepeer-review


The Israeli National Nuclear Forensics Laboratory (INNFL) investigated four unknown samples during the Collaborative Material Exercise 7 (CMX-7). The samples, identified as depleted uranium, were marked ES-1 to ES-4. ES-2 isotopic composition (0.200 ± 0.004% U-235) was different from the other samples (0.300 ± 0.003% U-235). ES-2 phase exhibited characteristics similar to metallic crystalline uranium with its appearance and assay. However, its density (16.9 ± 1.7 g/cm3) deviated significantly from metallic uranium (19.1 g/cm3). A series of analyses indicated that vanadium was present (app. 3000 ppm) in porosive areas on ES-2 surface. The oxygen isotope ratios suggested thermal processing under environmental conditions.

Original languageEnglish
JournalJournal of Radioanalytical and Nuclear Chemistry
StateAccepted/In press - 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2023, Akadémiai Kiadó, Budapest, Hungary.


  • CMX-7
  • Nuclear forensics
  • Uranium alloy


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