3 results about "Liquid scintillation counting" patented technology

1. The name of the design product: liquid scintillation counter. 2. The use of the design product: the design product is used in liquid scintillation counter measuring equipment. 3. The design points of the design product: the combination of shape and color. 4. The picture or photo that best shows the design points: perspective view. 5. The design for which protection is sought includes color. 6. Other circumstances that need to be explained: the material of the design product is mainly aluminum plate, and the surface is subjected to anodic oxidation and sand blasting treatment.

This invention discloses a method for identifying the bio-based properties of liquid fuels based on a liquid scintillation counter. 14 C isotope analysis is used to determine the bio-based content of liquid fuels, thereby identifying whether the liquid fuel is bio-based, fossil-based, or a mixture of bio-based and fossil-based. The steps include: S1, optimizing the experimental parameters of the liquid scintillation counter; S2, determining the sample counting efficiency; S3, determining the background sample... 14 β decay count of C; S4, calculate the bio-based content of the sample using a combination formula.

This invention discloses a method for detecting the specific activity of C14 barium carbonate, belonging to the field of radioactivity detection technology. The method includes: dissolving a C14 barium carbonate sample in a weak acid solution to generate a test solution containing bicarbonate ions; then directly mixing the test solution with a scintillation fluid to obtain a scintillation sample; finally, measuring its radioactivity activity using a liquid scintillation counter and calculating the specific activity based on a standard curve. This invention uses a weak acid to dissolve the C14 barium carbonate sample to generate a test solution containing bicarbonate ions that is directly mixed with the scintillation fluid, omitting the alkaline absorption step and simplifying the detection process from four steps in existing methods to two steps. Furthermore, it eliminates the need for a sealed gas absorption device, removing accumulated errors during sample transfer and the additional background introduced by the alkaline solution. Therefore, this invention reduces equipment requirements and improves detection accuracy and ease of operation.