Nuclear Reactor Assemblies, Nuclear Reactor Target Assemblies, and Nuclear Reactor Methods (iEdison No. 0685901-16-0012)
Reactor target assemblies are provided that can include a housing defining a perimeter of at least one volume and Np or Am spheres within the one volume. Reactor assemblies are provided that can include a reactor vessel and a bundle of target assemblies within the reactor vessel, at least one of the target assemblies comprising a housing defining a volume with Np or Am spheres being within the volume. Irradiation methods are also provided that can include irradiating Np or Am spheres within a nuclear reactor, then removing the irradiated spheres from the reactor and treating the irradiated spheres.
SYSTEM, EMANATION GENERATOR, AND PROCESS FOR PRODUCTION OF HIGH-PURITY THERAPEUTIC RADIOISOTOPES (iEdison No. 0685901-16-0013)
An isotope production system, emanation generator, and process are disclosed for production of high-purity radioisotopes. In one implementation example, high-purity Pb-212 and/or Bi-212 isotopes are produced suitable for therapeutic applications. In one embodiment the process includes transporting gaseous radon-220 from a radium-224 bearing generator which provides gas-phase separation of the Rn-220 from the Ra-224 in the generator. Subsequent decay of the captured Rn-220 accumulates high-purity Pb-212 and/or Bi-212 isotopes suitable for direct therapeutic applications. Other high-purity product isotopes may also be prepared.
METHODS AND SYSTEMS FOR INTEGRATING ION MANIPULATION DEVICES
Different ion mobility (IM) separation techniques offer capabilities that are unique in one aspect. For example, collision cross sections (CCS) can be directly calculated from drift time measurements in a constant field IM platforms. Oscillatory field IM (such as traveling wave IM) has low voltage requirements but calculating CCS cannot directly obtained from drift time measurements and require calibration against compounds of known CCS measured in another constant field IM device. Traveling wave-based IM instruments can achieve extremely high resolution but accurate CCS require measurements in a different device. Therefore, it is beneficial to have one instrument that combine constant and oscillatory field IM. We disclose an array of embodiments for a device that seamlessly and efficiently perform constant field IM and oscillatory field IM.
Isolating Desired Content, Metadata or Both from Social Media
What we've developed is an algorithm for unsupervised extraction of meta-data across blogs independent of language. We've implemented the algorithm as a way of automatically extracting text data in a clean format from blogs. We also have datasets that show a comparison of this algorithm with previous techniques on the same data.
Method and Apparatus for Selective Filtering of Ions
An adjustable, low mass-to-charge (m/z) filter has been developed and demonstrated using electrospray ionization to block ions associated with unwanted low m/z species from entering the mass spectrometer and contributing their space charge to down-stream ion accumulation steps. This technology can be used alone or in conjunction with other established methods that lessen the detrimental effects of excessive space charge in order to improve data quality. We show that implementing the low-m/z filter in an electrodynamic ion funnel provides a linear voltage adjustment of low-mass filtering from m/z 50 to 500. The mass filter was evaluated with a liquid chromatography-mass spectrometry analysis of an albumin tryptic digest and resulted in the ability to block low-mass, “background” ions which account for 40-70% of the total ion current from the ESI source during peak elution. This technology can also be used in any applications where lower m/z ions need to be prohibited from entering the instrument. The ion funnel mass filter device is easily implemented, independent of the type of instrument, and contained solely in the source eliminating the need to change any elements or potentials in the mass spectrometer. Additionally, the ability to simply set the maximum m/z cut-off of the filter allows for the tailoring of the device to better match the m/z range requirements of various samples.
METHOD AND SYSTEM FOR INFORMATION RETRIEVAL AND AGGREGATION FROM INFERRED USER REASONING
The visual analytic system enables information retrieval within large text collections. Typically, users have to directly and explicitly query information to retrieve it. With this system and process, the reasoning of the user is inferred from the user interaction they perform in a visual analytic tool, and the appropriate information to query, process, and visualize is systematically determined.
SYSTEMS AND METHODS FOR DATA STORAGE AND RETRIEVAL
A method includes directing a probe beam to a target that includes an array of data portions in a data storage medium arranged so that a beam area of the probe beam extends across a plurality of adjacent data portions, the array including a data portion subset with each data portion of the subset responsive to the probe beam to produce a response illumination, receiving the response illumination at a detector, and determining data values corresponding to the plurality of adjacent data portions based on the received response illumination. Apparatus and systems are also disclosed.density.
Magic Angle Spinning Nuclear Magnetic Resonance Apparatus and Process for High-Resolution in Situ Investigation
A large-sample-volume constant-flow magic angle sample spinning (CF-MAS) NMR probe is reported for in situ investigating the reaction dynamics, stable intermediates/transition states, and mechanisms of a catalytic reaction. In our approach, the reactants are flowed into the catalyst bed using a fixed tube at one end of the rotor while a second fixed tube linked to a vacuum pump is attached at the other end of the MAS rotor to form a flow inside the catalyst bed by utilizing the pressure difference at both ends of the catalyst bed inside the sample cell space. The formation of the flow through the catalyst bed improves the diffusion of the reactants and products, allowing the use of large sample volume for enhanced sensitivity and thus permitting in situ 13C CF-MAS studies at natural abundance. As an example of application, we show that reactants, products and reaction transition states associated with 2-butanol dehydration reaction over heteropoly acids supported on mesoporous silicalite materials (HPA/meso-silicalite-1) can all be detected in a single 13C CF-MAS NMR spectrum at natural abundance. Coke products can also be detected at natural 13C abundance and under stopped flow condition. Furthermore, we show that the surface functional groups of HPA/meso-silicalite-1 can be identified under the condition of in situ drying using 1H CF-MAS NMR. We also show that the reaction dynamics of 2-butanol dehydration using HPA/meso-silicalite-1 as catalyst can be explored using 1H CF-MAS NMR.