Abstract:
A method, an apparatus and a system are provided for assessing at a security checkpoint the threat status of a liquid product, where the liquid product is comprised of a bottle at least partially filled with liquid. In accordance with a broad aspect aspect, the level of fill is used as a factor in the determination of the threat status of the liquid product. In accordance with another broad aspect, an X-ray image of the liquid product is obtained and processed to derive a level of fill of the bottle and the threat status of the liquid product is determined at least in part based on the level of fill of the bottle. In accordance with yet another broad aspect, an X-ray image of the liquid product is processed to derive location information associated with a meniscus formed by the liquid in the bottle. An estimated length of a path followed by X-rays through the liquid held in the bottle is derived in part based on the location information and is used to determine the threat status of the liquid product.
Abstract:
Method for producing a probe for atomic force microscopy with a silicon nitride cantilever and an integrated single crystal silicon tetrahedral tip with high resonant frequencies and low spring constants intended for high speed AFM imaging.
Abstract:
In a method of dating paintings in particular from the last two hundred years isotopes of a selected element are detected which are found in living plants and used for making binding agents of artistic paint. In the detection only the relative concentration of the two isotopes in relation to each other has to be determined. One of them can be radioactive suitably having a half-life period smaller than e.g. 1000 years. For accurate determining even isotopes having shorter half-life periods can be used. For dating paintings alleged to have been made in the 20th century e.g. 90 Sr and 86 Sr or 137 Cs and 133 Cs can be used to decide whether a painting was made before or after the midst of said century.
Abstract:
An apparatus and method in which one or more taggants that are intrinsically located or extrinsically placed in an article or product (11) The taggants are detected by X-ray fluorescence analysis (20, 21) to identify or verify the article of its point of manufacture. taggants are manufactured as part of the article or the taggant is placed into a coating, label, or otherwise embedded within the articl for the purpose of later verifying the presence or absence of these elements by X-ray fluorescence, thus determining the unique elemental composition of the taggant within the article.
Abstract:
Die Erfindung betrifft ein Verfahren zur Inaktivierung von Pathogenen, wie Bakterien und Viren, in Spenderblut, Blutplasma und in Erythrozytenkonzentraten durch photodynamische Behandlung und/oder die Bestrahlung mit ultraviolettem Licht in flexiblen Belichtungsbeuteln unter starker Bewegung.
Abstract:
A mass spectrometer system has an elongated rod set having an entrance end, an exit end, a plurality of rods and a central longitudinal axis. The mass spectrometer system is operable to perform the following steps: a) admitting a first plurality of groups of ions into the entrance end of the rod set; b) producing a field between the plurality of rods to confine the first plurality of groups of ions in the rod set; c) selecting a first mass/charge range for a first group of ions in the first plurality of groups of ions; d) providing a first radial excitement field to radially displace the first group of ions within the first mass/charge range from the central longitudinal axis, and concurrently retaining a second group of ions closer to the central longitudinal axis than the first group of ions, the second group of ions being within a second mass/charge range disjoint from the first mass/charge range; and then e) providing a first axial force acting on the first group of ions by providing an axial acceleration field. The first axial force is not provided during step d).
Abstract:
An apparatus and method for non-destructive inspection of materials housed in containers involves orienting an X-ray beam emitter and detector to direct and detect an X-ray beam at an angle substantially parallel to a sloped surface of the container to be inspected. A first X-ray apparatus is located opposite a second X-ray apparatus, and both the first and second X-ray apparatus are adapted to provide two X-ray beams. This arrangement provides for imaging of the entire area of a sloped portion of the container without any shadow or hidden spots.
Abstract:
An extremely stable nuclear detector for use in the determination of fractional compositions of multiphase fluids (16) having a scintillator (24), a photomultiplier (26), processing circuitry that determines the energy levels of pulses output from the photomultiplier, and scintillator temperature control (36) means for controlling the temperature of the scintillator during operation of said nuclear detector. Also disclosed and claimed is a scintillator assembly for use in such a nuclear detector having a hermetically sealed scintillator housing and a scintillator crystal contained within the scintillator housing, where the scintillator housing has a low attenuation window (22) composed primarily of Beryllium.
Abstract:
An atomic beam generating method and device, for generating a high-flow-rate atomic beam with a high picking up efficiency by a simple-structured vacuum device, and capable of being regulated in flow rate and applicable to various atomic seeds, wherein an atomic beam generating device (10) for generating an atomic beam by retrieving atoms from a low-temperature atom group formed by using laser cooling is used to block, by an atomic beam transporting tube (14), part of one laser beam advancing in a specified direction in each set of laser beams at a crossing region (15) of at least two sets of laser beams (13a, 13b), each set having two laser beams advancing in mutually opposite directions, to thereby form a negative laser beam region (16), whereby a force pushing atoms in a specified direction in this negative region is generated to generate an atomic beam (18).
Abstract:
A preferred embodiment of the present invention includes a system (10) for detecting a presence of a macromolecule having one or more resonant frequencies. The system includes a pulse generator (20) (a T-wave generator in the most preferred embodiment) for generating a detection profile having a detection set of T-waves (100) and applying the detection profile to a sample including the macromolecule, at least one T-wave having a center frequency substantially centered on one of the resonant frequencies of the macromolecule, a detector (60) for receiving the detection profile (110) after the application of said detection profile to said sample, an analyzer, coupled to the detector, for determining a T-wave absorption profile by identifying which T-waves of the set of T-waves have been wholly or partially absorbed by the sample and to subsequently identify the macromolecule by use of the absorption profile.