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Nuclear reaction analysis

About: Nuclear reaction analysis is a research topic. Over the lifetime, 1424 publications have been published within this topic receiving 21532 citations.

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Journal ArticleDOI
TL;DR: The cyclic voltammetric and kinetic data presented can serve as a benchmark for research groups evaluating the electrochemical properties of semimetallic (i.e., conductive), hydrogen-terminated, polycrystalline diamond.
Abstract: Standard electrochemical data for high-quality, boron-doped diamond thin-film electrodes are presented. Films from two different sources were compared (NRL and USU) and both were highly conductive, hydrogen-terminated, and polycrystalline. The films are acid washed and hydrogen plasma treated prior to use to remove nondiamond carbon impurity phases and to hydrogen terminate the surface. The boron-doping level of the NRL film was estimated to be in the mid 1019 B/cm3 range, and the boron-doping level of the USU films was ∼5 × 1020 B/cm-3 based on boron nuclear reaction analysis. The electrochemical response was evaluated using Fe(CN)63-/4-, Ru(NH3)63+/2+, IrCl62-/3-, methyl viologen, dopamine, ascorbic acid, Fe3+/2+, and chlorpromazine. Comparisons are made between the apparent heterogeneous electron-transfer rate constants, koapp, observed at these high-quality diamond films and the rate constants reported in the literature for freshly activated glassy carbon. Ru(NH3)63+/2+, IrCl62-/3-, methyl viologen, a...

386 citations

Journal ArticleDOI
TL;DR: In this paper, a TiCl4 and water as reactants were used to grow a thin titanium dioxide thin film over a temperature range 150-600 °C in order to study the effects of temperature on the growth rate.

350 citations

Journal ArticleDOI
TL;DR: In this paper, the laser nitriding of iron, carbon steel, stainless steel, and aluminum was investigated employing a combination of complementary methods, such as ion beam analysis (Rutherford Backscattering Spectroscopy and Resonant Nuclear Reaction Analysis) for element and isotope profiling.

302 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the self-decomposition of Ta(OC{sub 2}H{sub 5} )-sub 5 O(sub 5) and water as precursors for atomic layer epitaxy (ALE).
Abstract: Ta{sub 2}O{sub 5} thin films have been used in a number of applications such as dielectric materials for storage capacitors and thin film transistors, antireflection coatings for solar cells, optical waveguides, and filters chemical sensors, as well as corrosion resistant materials. The deposition of thin Ta{sub 2}O{sub 5} films by atomic layer epitaxy (ALE) was investigated in the temperature range of 150 to 450 C using Ta(OC{sub 2}H{sub 5}){sub 5} and water as precursors. Because of the thermal self-decomposition of Ta(OC{sub 2}H{sub 5}){sub 5} the self-limiting ALE growth was achieved only below 350 C. All the films grown were amorphous as examined by X-ray diffraction analysis. The films grown at 250 and 325 C were stoichiometric within the accuracy of Rutherford backscattering spectrometry and contained 4 and 0.6 atom percent (a/o) hydrogen as determined by nuclear reaction analysis, respectively. Except for the outermost surface, the content of carbon residues was below 3 a/o as analyzed by X-ray photoelectron spectroscopy. The films exhibited smooth surfaces as observed by scanning electron microscopy and relatively uniform thicknesses with 7% deviation in the gas flow direction. The refractive index of the films increased with deposition temperature stabilizing at 2.23 at temperatures higher than 300more » C. The permittivities for the films grown at 250 and 325 C were 21 and 25, respectively, and leakage current densities at 1 MV/cm electric field were 4.0 and 2.3 mA/cm{sup 2}, respectively.« less

241 citations

01 Jan 1991
TL;DR: In this paper, the fundamentals of radiochemistry as well as specific applications of nuclear techniques to analytical chemistry are discussed, including radioimmunoassay and activation techniques using very short-lined indicator radionuclides.
Abstract: Provides both the fundamentals of radiochemistry as well as specific applications of nuclear techniques to analytical chemistry. Includes such areas of application as radioimmunoassay and activation techniques using very short-lined indicator radionuclides. Emphasizes the current nuclear methods of analysis such as neutron activation PIXE, nuclear reaction analysis, Rutherford backscattering, isotope dilution analysis and others.

184 citations

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