An article for screening includes a top surface and a bottom surface. A forward wall, an aft wall and side walls each extend between the top surface and the bottom surface. A longitudinal recess extends at least partially across the top surface has a first lateral wall extending away from the top surface toward the bottom surface and meeting with a base wall at a predetermined angle therebetween for positioning of a liquid material relative to the first lateral wall and the base wall. The predetermined angle is for restricting data in a data range provided by a scanning operation of the liquid material to data provided within the predetermined angle between the first lateral wall and the base wall of the recess. The liquid material may be contained within a container positioned within the recess. Preferably, the article is an insert for a security screening tray.

The present invention relates to a flow cell that comprises a body defining a cavity, an inlet pipe for the inflow of a fluid to the cavity, an outlet pipe for the outflow of the fluid from the cavity, and an X-ray transparent window for allowing the fluid in the cavity to be irradiated with X-ray radiation. In the flow cell according to the invention the inner surface of the inlet pipe comprises a grooving for imparting rotational flow to the inflowing fluid. The present invention also relates to a system and a method for analysing a fluid.

A source well divider for use with a nuclear level gauge on a process vessel 24, permits the insertion of multiple radiation sources 12 in the source well. The divider includes a plurality of lengths of flexible interlocked metallic tubing 18, each length extending into the source well 22 from a nozzle in the vessel 24, forming a plurality of independent sub-wells each permitting the installation of an independently cabled radiation source 12 into the source well.

An improved microreactor for use in microscopy, use of said microreactor, and a microscope comprising said reactor. The present invention is in the field of microscopy, specifically in the field of electron and focused ion beam microscopy (EM and FIB), and in particular Transmission Electron Microscopy (TEM). However its application is extendable in principle to any field of microscopy, especially wherein characteristics of a (solid) specimen (or sample) are studied in detail, such as during a reaction.

The present invention provides a method for analysis and determination of the heavy metal occurrence key mineral phases in industrial solid waste, by performing N concentration gradients dissociation determination of the heavy metal solid waste to be tested under the same dissociation conditions, to give the dissociation degrees of the heavy metal elements to be tested at N different concentration gradients; the dissociated solid residues after dissociation being quantitatively analyzed for the mineral phase, to give the relative content of each mineral phase in the M mineral phases of the heavy metal solid waste to be tested; then calculating to give the occurrence distribution proportion of the heavy metal elements in the mineral phase, which are accumulated from high to low; the occurrence key mineral phase whose cumulative occurrence proportion exceeds the preset cumulative threshold value is determined to be the key mineral phase of the heavy metal elements.

A thin film liquid cell suitable for transmission electron microscopy at room temperature is fabricated as follows. A thin film floating on a liquid is prepared. A droplet of the liquid with the thin film floating thereon is transferred to a support by means of a loop. The loop carries the droplet and the droplet carries the thin film during this transfer. Sufficient liquid from the droplet on the support is removed to form the thin film liquid cell.

The invention relates to a method for optimizing a mixture of components for the production of a target product by means of spectral analysis, preferably by means of spectral analysis (topological) in the near infrared region (NIR). The aim of the method is to produce a target product by batch mixing and/or continuous mixing of the n components thereof, on the basis of different flows of said components with controlled concentrations and/or flow rates, said target product requiring a set of ranges of values of physiocohemical characteristics for the commercialization thereof. According to the method, a batch mixer or a continuous mixer is supplied with said components with controlled concentrations and/or flow rates.

The present invention relates to a flow cell that comprises a body defining a cavity, an inlet pipe for the inflow of a fluid to the cavity, an outlet pipe for the outflow of the fluid from the cavity, and an X-ray transparent window for allowing the fluid in the cavity to be irradiated with X-ray radiation. In the flow cell according to the invention the inner surface of the inlet pipe comprises a grooving for imparting rotational flow to the inflowing fluid. The present invention also relates to a system and a method for analysing a fluid.

Systems and methods for liquid detection are disclosed. An illustrative method for liquid detection herein may include implementing CT imaging and XRD imaging on one or more liquid planes of liquid contained in a container at once by rotating the container so that X-rays from a same radiation source scan a whole area of each of the one or more liquid planes, and generating a substance identification result for the liquid contained in the container based on a CT image and a XRD image, wherein the CT imaging and the XRD imaging are implemented on a same liquid plane or different liquid planes. Consistent with various aspects and features, implementations may identify substances contained in the liquid more quickly and accurately.

The invention relates to a method and a device for certifying and optimizing a mixture of components in order to obtain a target product by spectral analysis, preferably by (topological) spectral analysis in the near infra-red (NIR).