摘要:
A specimen holding and positioning apparatus operable to substantially non-movably maintain a specimen (e.g., an excised tissue specimen) in a fixed or stable orientation with respect to the apparatus during imaging operations (e.g., x-ray imaging), transport (e.g., from a surgery room to a pathologist's laboratory), and the like for use in facilitating accurate detection and diagnosis of cancers and/or other abnormalities of the specimen.
摘要:
The subject of the present invention is a device for the in situ analysis of batteries by means of X-ray, synchrotron or another radiation. The device has a sample support, which is realized as a sample wheel rotatably mounted about the center axis. A plurality of sample holders, the center points of which are placed on a common circular line about the center point of the sample support, are arranged on the sample support, wherein each sample holder can be repeatedly opened and closed individually by an arrestable cover. Each sample holder has in its interior a cavity which receives the battery, which is to be examined, in a manner ideal in shape with regard to circumference, wherein the cover and the cavity have an opening for the passage of the beam. A spring, engaging in the edge region of the battery, presses the battery against the cover, wherein the spring and the edge region of the cover are embodied so as to be electrically conducting but insulated with respect to one another. There are directed from each sample holder an electrically conductive connection from the edge region of the cover, and an electrically conductive connection from the spring onto the face of the sample support facing away from the cover and into the vicinity of its center point. There, the lines of all sample holders are combined to form a line bundle or a plug connector.
摘要:
A method for characterizing a sample combining an X-ray tomography characterization technique and a secondary ionization mass spectrometry characterization technique, includes: a step of providing a tip that includes first and second end surfaces, a first cylindrical region bearing the first end surface and a second region in contact with the first cylindrical region and becoming slimmer towards the second end surface; a step of machining the second region to obtain a sample holder including a flat surface, the flat surface forming an end surface of the sample holder, the area of the flat surface being less than the area of the first end surface; a step of placing the sample on the flat surface of the sample holder; a first step of characterization of the sample using an X-ray characterization technique; a second step of characterization of the sample using a secondary ionization mass spectrometry characterization technique.
摘要:
This invention relates to the design and construction of a novel sample cup inner member including an integral venting cap for use in XRF Spectroscopy.
摘要:
A sample holding device for studying light-driven reactions and a sample analysis method using the same are disclosed. The sample holding device comprises a main body, a supporting structure and a light source assembly. The main body has a channel which has a first end and a second end opposite to the first end, and a focusing lens which is located on the second end. The supporting structure is located on one end of the main body for sample supporting. The light source assembly is detachably disposed on the other end opposite to the end which is disposed with the supporting structure. The light source assembly emits a light beam into the first end of the channel. The light beam then irradiates the sample which locates on the supporting structure after passing through the focusing lens.
摘要:
A conditioning system includes a sample chamber capable of receiving a specimen as well as first and second specimen-holding fixtures positioned within the sample chamber and configured to apply mechanical stimulation to a specimen held by the fixtures. The system has at least one port capable of providing a fluid to the sample chamber. The chamber is sized and shaped so that it can be inserted into an imaging device which can record images of a specimen held by the fixtures.
摘要:
A sample holder for the examination of small particles contained in a suspension using X-rays or electron beams is depicted and described, wherein the sample holder includes a single-crystal substrate extending in a plane, the dimensions of which in the plane are several times larger than the dimensions perpendicular to the plane, wherein the substrate includes a first and a second surface, which run parallel to the plane, and wherein the substrate includes through-holes, which extend perpendicular to the plane and which run from the first to the second surface.
摘要:
The present invention pertains to a method for obtaining and analyzing solids, preferably crystals, which method comprises the following steps: providing a well plate, the well plate comprising a plurality of wells, each of the wells having a depth and an open upper end and each of the wells being provided with a filter having pores, which filter is arranged at a distance below the open upper end, each of the wells having an upper inner wall part above the filter that has a fluid contact surface and each filter having a top filter surface, at least both the fluid contact surface of the well and the top filter surface being of a material that is at least substantially inert for organic and/or aqueous solvents and/or mixtures of organic and aqueous solvents, providing one or more substances and one or more solvents in at least one of the wells of the well plate, applying conditions to dissolve the one or more substances in the one or more solvents; applying conditions for crystallizing at least a part of the substance so that solids are formed in the at least one well, substantially removing the part of the substance that remains in solution, thereby leaving the solids, preferably crystals, that were formed from the substance in the well of the well plate in which they were formed, performing further investigation of the solids, preferably crystals in the well of the well plate where they were formed.
摘要:
A specimen platform for maintaining specimen geometry and traceability includes a specimen holder having a specimen receptacle comprising a flexible X-ray and optically transparent material, configured to conform an excised specimen to a shape of the specimen before excision, a specimen receptacle support attached to the specimen receptacle, and a frame configured to hold the specimen receptacle support.
摘要:
The sample mounting system comprises a sample holder and a sample stage having a platform for supporting the sample holder. The sample can be fixed to the sample holder by a mount. The sample holder comprises a holder reference portion, which co-operates with a corresponding reference portion of the sample stage (the stage reference portion) to align the sample holder with the sample stage. When the sample holder is positioned on the platform such that the stage reference portion and the holder reference portion engage each other, the sample holder is aligned with the sample stage.