Conversion of U-238 and Th-232 Using a Fusion Neutron Source

Measurement of the Intrinsic Radiopurity of 137 Cs / 235 U / 238 U / 232 Th in CsI ( Tl ) Crystal Scintillators

Quasi - Differential Neutron Scattering Measurements of 238 U

Uranium-238 is used extensively in nuclear reactor cores. Its nuclear properties have a significant effect on many aspects of the entire fuel cycle process from enrichment facilities and power production to nuclear waste storage facilities. In order to safely design such systems, an accurate evaluation of neutron interactions with U is required. This paper describes a process of quantifying dif...

Variation of initial 230 Th / 232 Th and limits of high precision U - Th dating of shallow - water corals

Department of Geosciences, National Taiwan University, Taipei, Taiwan, ROC Tectonics Observatory, California Institute of Technology, Pasadena, California, USA Department of Geology and Geophysics, University of Minnesota, Minnesota, USA Institute of Geology, Vietnamese Academy of Science and Technology, Hanoi, Vietnam National Museum of Marine Biology and Aquarium, Pingtung, Taiwan, ROC Instit...

Natural fractionation of 238 U / 235 U

The isotopic composition of U in nature is generally assumed to be invariant. Here, we report variations of the U/U isotope ratio in natural samples (basalts, granites, seawater, corals, black shales, suboxic sediments, ferromanganese crusts/ nodules and BIFs) of 1.3‰, exceeding by far the analytical precision of our method ( 0.06‰, 2SD). U isotopes were analyzed with MC-ICP-MS using a mixed U–...

Search for Element 112 Using the Hot Fusion Reaction 48 Ca + 238 U *

GSI, Darmstadt, Germany; Comenius University, Bratislava, Slovakia; PSI, Villigen, Switzerland; University of Jyväskylä, Jyväskylä, Finland; JAEA, Tokai, Japan; JINR, Dubna, Russia, 7 Johann Wolfgang Goethe-Universität, Frankfurt, Germany, 8 Johannes Gutenberg-Universität, Mainz, Germany Recent literature data on the synthesis of element 112 using the hot fusion reaction Ca + U → 112 seem to be...