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"In this research was carried out geophysical investigation using geolictric resistivity measuremnts and geological mapping conducted in purpose to know form, distribution and depth of basenent in Aloban Basin include its level of uranium mineralization..."

"In Mentawa areas there are indications that the U mineralization associated with tourmaline, quartz, sulfide minerals that fill the fracture aperture, on the rocks metasilt, and filit with the direction of WNW-ESE, the thickness milimetric-centrimetic with radioactivity 500-15000 c/s SPP 2 NF. The purpose of this study is to know the characters, parageneses and the process of formation of uranium minerals. The method used by microscopic observation of several examples of thin sections and polished sections of the previous research results. The study shows that uranium minerals are uraninite, associated with molybdenite, magnetite, rutile, ilmenite, pyrite, pyrrhotite, tourmaline, garnet, quartz and mineral pikblende associated with arsenopyrite, covelite, hematite, chalcopyrite, pyrite, pyrrhotite, tourmaline, quartz fill in cracks in rocks biotite and biotite schist. Mineral associations indicate that the process of formation of uranium mineralization occurs in three phases: pegmatik pneumatolitik, and hydrothermal alteration."

"The influence of the urea and HMTA as additives, time and temperature reduction on UO2 kernel specification has been studied. UO2 kernel was made up by totla gelation process uranium (TGU). Uranyl nitrate,urea, HMTA, polyvinyl alcohol (PVA) and tetra hidrofurfural (THF),were used as base materials..."

"The influence of U3 O8 and U3 Si2 powder diffrence toward the formation of porosity, uranium homogeneity and cladding thickness of U3 O8 -Al and U3 Si2 - Al fuel plate product. Research of raw material influence of U3 O8 and U3 Si2 in the making of U3 O8 - Al and U3 Si2 - Al fuel plate has been conducted. The U3 O8 represent result of the amonium uranil carbonate calcination process, while U3 Si2 powder result by milling ingot U3 Si2 (U - 7,5 w%)...."

"Influence of oxidation temperature and time and ZrO2 concertration on density, surface area and O/U ratio of (U3O8+ZrO2) reduction product. Reduction process of uranium oxide and zicronium oxide (U3O8+ZrO2) by hydrogen gas at temperature of 850 oC for 2 hours in reduction furnace has been carried out. The material was obtained from oxidation product of (UO2 + ZrO2) pellet became (U3O8+ZrO) powder at temperature of 400oC and 500oC for0.5 - 2 hours with variation of ZrO2 concentration from 0-0.6%...."

"Penelitian ini dilakukan berdasarkan adanya temuan indikasi mineral radioaktif berupa anomali laju dosis radiasi bernilai relatif tinggi. Hipotesis yang mendasari keberadaan laju dosis radiasi tinggi adalah pengendapan uranium yang berasal dari batuan basal Formasi Auwea, pengkayaan uranium yang berasal dari batugamping pada tanah permukaan, dan pengendapan uranium yang berasal dari penggunaan pupuk pertanian. Penelitian yang dilakukan bertujuan untuk mendapatkan kesimpulan dari beberapa hipotesis tersebut. Metode penelitian yang diterapkan adalah pemetaan geologi, pengukuran radiometri, kadar uranium (U), thorium (Th), dan potassium (K) di lapangan dengan menggunakan RS 125 untuk mengetahui kadar unsur secara insitu, pengukuran radiometri pupuk tanaman, pengambilan contoh, dan analisis kadar unsur di laboratorium. Berdasarkan hasil analisis dan evaluasi data survei diketahui bahwa di daerah sekitar Maryendi, Darmapis, dan Denafi, terindikasi adanya zona anomali uranium (U) yang dicirikan oleh keberadaan tanah berwarna coklat tua ? coklat kemerahan, dengan nilai dosis radiasi 1,9 sampai 4.032,3 nSv/jam dan kadar uranium (U) berkisar antara 20,27 ? 325 ppm eU. Berdasarkan hasil analisis batuan sumber uranium, disimpulkan batu gamping merupakan batuan sumber uranium di lokasi penelitian. Hasil pengamatan lapangan terhadap pupuk dan batuan basal Formasi Auwea tidak ditemukan anomali yang dapat mengindikasikan material/batuan tersebut bertindak sebagai sumber uranium."