Development and Characterization of Boehmite Component Simulant

According to Bechtel National Inc.’s (BNI’s) Test Specification 24590-PTF-TSP-RT-06-006, Rev 0, “Simulant Development to Support the Development and Demonstration of Leaching and Ultrafiltration Pretreatment Processes,” simulants for boehmite, gibbsite, and filtration are to be developed that can be used in subsequent bench and integrated testing of the leaching/filtration processes. These simulants will then be used to demonstrate the leaching process and to help refine processing conditions that may impact safety basis considerations (Smith 2006). This report documents the results of the boehmite simulant development and blended simulant crossflow ultrafiltration leaching completed in accordance with the test plan TP-RPP-WTP-469 Rev 0 (WTP Doc. No. 24590- 101-TSA-W000-0004-182-00001 Rev 00A) prepared and approved in response to the cited test specification. This report also includes the results of the aluminate and anion effect on boehmite dissolution performed in accordance with the test plan TP-RPP-WTP-509, Rev 0 (WTP Doc. No. 24590-101-TSA-W000-0004-72-00019 Rev 00A) prepared and approved in response to the Test Specification 24590-WTP-TSP-RT-07-004, Rev 0 (Sundar 2007)

THE DISCRETE FOURIER TRANSFORM IN DETAILED MICROWAVE SPECTRAL ANALYSIS

Author Institution: Department of Physics and Astronomy, University of WyomingThe discrete Fourier transform (DFT) has been successfully utilized in determining such microwave signal parameters as center frequency, integrated intensity and line width of both theoretical Lorentzian line shapes and experimental microwave data. Also, the DFT has been directly applied to resolution enhancement of microwave signals. Digital cross-correlation and DFT techniques have been employed to improve signal to noise ratios and the relative merits of each are discussed

ACOUSTICAL DETECTION OF MICROWAVE ABSORPTION SPECTRA

Author Institution: Department of Physics and Astronomy, University of Wyoming LaramieAn apparatus was constructed to detect the amount of microwave energy converted into acoustic pulses, when an absorbing gas is irradiated. A portion of the ammonia spectrum around 24 CHz was scanned. Pressure broadening and saturation effects were observed. The results will be shown and discussed

FREE RADICAL MICROWAVE ROTATIONAL SPECTROSCOPY WITH A RESONANT CAVITY

Author Institution: Lawrence Radiation Laboratory, University of California; Lawrence Radiation Laboratory, University of WyomingA Zeeman modulated microwave spectrometer, designed specifically for K-band rotational studies of gaseous free radicals and transient molecular species, and using a Fabry-Perot type resonator as the absorption cell, will be described. The sensitivity of the system is found to be comparable to that of the most sensitive waveguide-cell spectrometers. The location of previously assigned spectra of OH and $NO_{2}$ radicals has been successfully made with the system. The utility of the system as a search spectrometer for free radicals has been substantiated by locating previously unreported spectra for the $NO_{2}$ molecule and for the $NF_{2}$ (difluoroamino) free radical

MICROWAVE ROTATIONAL SPECTRUM OF THE NF2NF_{2} FREE RADICAL∗RADICAL^{*}

$^{*}$This work was performed under the auspices of the U.S. Atomic Energy Commission.Author Institution: University of California, Lawrence Radiation Laboratory; Department of Physics, University of WyomingAn analysis of the K-band rotational transitions of the $NF_{2}$ free radical is given. The observed hyperfine structure is shown to be consistent with a J type coupling scheme for the four different angular momenta involved. Tentative rotational assignments are made and rotational constants as well as some hyperfine coupling constants are determined