Comet‘s patented X-ray target assembly features a multilayered design with distinct thermal expansion properties. It includes a heat transfer layer, an X-ray source layer, and an adhesion layer, all oriented to optimize heat management, mounted on a cylindrical carrying element that connects to a base. GlobalData’s report on Comet gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Comet, was a key innovation area identified from patents. Comet's grant share as of June 2024 was 36%. Grant share is based on the ratio of number of grants to total number of patents.
Multilayered x-ray target assembly with thermal expansion management
The granted patent US12046440B2 presents a novel X-ray target assembly designed to enhance the efficiency and performance of X-ray generation. The assembly comprises a base and a multilayered X-ray target, which includes a heat transfer layer, an X-ray source layer, and an adhesion layer situated between the two. The configuration ensures that the heat transfer layer is closest to the base, with the X-ray target mounted on a carrying element. Notably, the in-plane coefficients of thermal expansion for the various layers and the carrying element differ, with the carrying element exhibiting the highest coefficient. The carrying element is characterized by a specific height-to-diameter ratio and is designed to fit within a recess in the base, which may also feature cooling fins to enhance thermal management.
Further claims detail the materials and structural configurations of the assembly. The base and carrying element can be made from copper or silver, while the heat transfer layer is specified to have a thermal conductivity of at least 500 W/m·K, with diamond being a preferred material. The X-ray source layer may consist of tungsten, rhenium, molybdenum, or their alloys. The patent also describes methods for depositing the layers, such as ion beam sputtering and chemical vapor deposition. Additionally, the assembly can be integrated into an X-ray anode assembly or an X-ray tube apparatus, with provisions for tilting the X-ray source layer relative to the anode body, thereby optimizing the X-ray emission characteristics.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
