Abstract: Methods of providing load following capability to commercial nuclear reactors. Materials that thwart nuclear reactor hotspots and transients by absorbing excess neutrons such as hard or high energy neutrons. Nuclear fuel additives to stabilize nuclear reactor transients. Materials that interact more strongly with high energy neutrons than they do with now energy or thermal neutrons.

Abstract: Systems and methods for characterizing electromagnetic spectra are described. The techniques include identifying, using radiation spectroscopy information obtained over a measurement time period, one or more energies associated with electromagnetic radiation emitted by a material or region. The identification includes dividing the measurement time period into two or more subperiods, identifying, for each of the two or more subperiods, measured radiation energies in a subset of the radiation spectroscopy information associated with one of the two or more subperiods, and selecting, from the identified radiation energies for each of the two or more subperiods, radiation energies identified in at least two of the two or more subperiods. The techniques further include identifying, using the selected radiation energies, one or more radioisotopes characterized by the identified radiation energies.

Abstract: Fast neutron detectors using nuclear reactions within semiconductor material, glass, or other material. Some versions used doped versions of the materials. Some versions use dopants selected from Ba, As, Br, C, Ce, Cl, Co, Cu, F, Ga, Ge, In, Cd, Te, Al, P, K, La, Mo, Nd, O, Os, Pr, S, Se, Si, Sn, Sr, Ti, Tl, V, Zn, and Zr. Some versions have filters or coatings deposited on windows into the detector. Coatings are selected from titanium oxide, zinc oxide, tin oxide, copper indium gadolinium selenide, cadmium telluride, cadmium tin oxide, perovskite photovoltaic, Si, GaAs, AlP, Ge.

Abstract: Fast neutron detectors using nuclear reactions within semiconductor sheet material. Some versions used doped versions of the material. Some versions use dopants selected from Ba, As, Br, C, Ce, Cl, Co, Cu, F, Ga, Ge, In, Cd, Te, Al, P, K, La, Mo, Nd, O, Os, Pr, S, Se, Si, Sn, Sr, Ti, Tl, V, Zn, and Zr. Some versions have filters or coatings deposited on windows into the detector. Coatings are selected from titanium oxide, zinc oxide, tin oxide, copper indium gadolinium selenide, cadmium telluride, cadmium tin oxide, perovskite photovoltaic, Si, GaAs, AlP, Ge.