The composition and crystal structure of the “Joint Oxyde Gaine” (JOG) has been investigated by means of electron microscopy. Microstructural characterization reveals a highly heterogeneous porous structure with inclusions containing both fission products and cladding components. Major fission products detected, other than Cs and Mo, are Te, I, Zr and Ba. The layer is composed by sub-micrometric crystallites. The diffraction data refinement, together with chemical mapping, confirm the presence of Cs₂MoO₄, which is the major component of the JOG. However, combinatorial analyses reveal that other non-stoichiometric phases are possible, highlighting the complex nature of the crystalline structure of the JOG.

Fe is found in metallic Pd-rich precipitates with structure compatible with the tetragonal structure of FePd alloy. Cr is found in different locations of the JOG, in oxide form, but no structural data could be obtained due to local beam sensitization of the sample in those areas.

已经通过电子显微镜研究了“联合氧化物Gaine”（JOG）的组成和晶体结构。微观结构表征揭示了高度异质的多孔结构，其中包含了裂变产物和包层成分。除Cs和Mo外，检测到的主要裂变产物是Te，I，Zr和Ba。该层由亚微米微晶组成。衍射数据的精炼，再加上化学作图，证实了Cs ₂ MoO ₄的存在，它是JOG的主要成分。但是，组合分析显示其他非化学计量的相也是可能的，这突出显示了JOG晶体结构的复杂性质。

在富金属的Pd沉淀物中发现了Fe，其结构与FePd合金的四方结构兼容。在JOG的不同位置以氧化物形式发现了Cr，但是由于样品在那些区域中的局部束敏化而无法获得结构数据。