摘要:
Thin composite panels with interconnection schemes that are unitized with the panels, i.e., formed integrally and substantially simultaneously with the panels. Further contemplated is the application of an injection molding technique, such as reaction injection molding, in establishing a foam or polymeric core between laminates in thin composite panels. Additionally contemplated is the use of interchangeable laminate components in affording the capability of altering the coloring or other visual features of a reveal in a panel or panels.
摘要:
An apparatus and method for the generation of ultrabright multikilovolt x-rays from saturated amplification on noble gas transition arrays from hollow atom states is described. Conditions for x-ray amplification in this spectral region combine the production of cold, high-Z matter, with the direct, selective multiphoton excitation of hollow atoms from clusters using ultraviolet radiation and a nonlinear mode of confined, self-channeled propagation in plasmas. Data obtained is consistent with the presence of saturated amplification on several transition arrays of the hollow atom Xe(L) spectrum (&lgr;˜2.9 Å). An estimate of the peak brightness achieved is ˜1029 &ggr;·s−1·mm−2·mr−2 (0.1% Bandwidth)−1, that is ˜105-fold higher than presently available synchotron technology.
摘要:
A process and apparatus for separating isotopes by selective excitation of isotopic species of a volatile compound by tuned laser light. A highly cooled gas of the volatile compound is produced in which the isotopic shift is sharpened and defined. Before substantial condensation occurs, the cooled gas is irradiated with laser light precisely tuned to a desired wavelength to selectively excite a particular isotopic species in the cooled gas. The laser light may impart sufficient energy to the excited species to cause it to undergo photolysis, photochemical reaction or even to photoionize. Alternatively, a two-photon irradiation may be applied to the cooled gas to induce photolysis, photochemical reaction or photoionization. The process is particularly applicable to the separation of isotopes of uranium.
摘要:
The generation of ultrabright, multikilovolt coherent tunable x-radiation resulting from amplification on hollow atom transition arrays is described. Amplification has been demonstrated by physical evidence including (a) the observation of selected spectral components of several Xeq+ hollow atom transition arrays (q=30, 31, 32, 34, 35, 36, 37) radiated axially from confined plasma channels, (b) the measurement of line narrowing that is spectrally correlated with the amplified transitions, (c) evidence for spectral hole-burning in the spontaneous emission, a manifestation of saturated amplification, that corresponds spectrally with the amplified lines, and (d) the detection of an intense narrow (δθx˜0.2 mr) directed beam of radiation in the far field of the source.
摘要:
Methods for food product preservation by inactivation of microorganisms and/or enzymes by applying pulses of very intense, very short duration pulses of light in the visible and near visible frequencies to the surface of food products to be preserved. Also disclosed are packaging methods and apparatus utilizing such intense, short pulses of polychromatic, incoherent light.
摘要:
Methods and apparatus for food product preservation by inactivation of microorganisms and/or enzymes by applying pulses of very intense, very short duration pulses of light in the visible and near visible frequencies to the surface of food products to be preserved. Also disclosed are packaging methods and apparatus utilizing such intense, short pulses of polychromatic, incoherent light.
摘要:
A plasma pinch system includes a fluid-jet pinch device for establishing a plasma source composed of a tenuous vapor preconditioning cloud surrounding a central narrow flowing fine stream of fluid under pressure. A discharge device is connected electrically to the fluid-jet pinch device for supplying an electrical flow through a portion of the fluid stream for establishing an incoherent light emitting plasma therealong. A method of using the plasma pinch system for manufacturing semiconductors, includes exposing a semiconductor wafer to the incoherent light emitted by the plasma for either annealing or etching purposes.
摘要:
Methods and apparatus for food product preservation by inactivation of microorganisms and/or enzymes by applying pulses of very intense, very short duration pulses of light in the visible and near visible frequencies to the surface of food products to be preserved. Also disclosed are packaging methods and apparatus utilizing such intense, short pulses of polychromatic, incoherent light.
摘要:
A method and apparatus for obtaining uniform, high-energy, large-volume electrical discharges in the lasing medium of a gas laser whereby a high-energy electron beam is used as an external ionization source to ionize substantially the entire volume of the lasing medium which is then readily pumped by means of an applied potential less than the breakdown voltage of the medium. The method and apparatus are particularly useful in CO.sub.2 laser systems.