COMPONENTS
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Testing Testing and validating the finished materials used for coaxial cables and connectors to confirm they are nonmagnetic is essential. Use an indepth test process aligned with industry standards such as ASTM F2052 or ASTM F221 to ensure the components are nonmagnetic. These standards define the requirements for materials, magnetic properties, and performance. This can be done using a Gauss meter or a magnetometer, two tools that measure the strength and direction of magnetic fields. The cables and connectors should be tested in their final configuration, including any adapters or extensions. Thorough testing of the materials and final products can ensure they will not interfere with the MRI imaging process. Finding the right partner Given the life-saving diagnostics provided by MRI, it is imperative to
choose a partner with a proven track record of developing solutions for mission-critical applications such as the military, spaceflight and aerospace industries. The partner should be able to leverage time-tested standards such as quality, cleanliness, and traceability from those industries. Manufacturers must take these factors seriously and should offer not only materials but also technical expertise to solve complex problems from an industry-standard perspective. A third party that provides engineering services in addition to coaxial cable assemblies can become a part of the design team from the beginning and collaborate on the right interconnect solutions for a specific MRI application. Whether designing a product or helping with processing and techniques, the partner must be committed to providing technical solutions and answers to deliver highquality results.
Takeaways In conclusion, the fundamental requirement to ensure coaxial cables and connectors used in MRI applications are truly nonmagnetic is increasingly important to ensure the images produced are accurate as MRI magnetic fields strengthen. Careful consideration of the base materials, materials processing, and component finishing ensure coaxial cable assemblies used in critical MRI applications remain nonmagnetic. Once complete, testing the assembled cables and connectors for magnetic fields and verifying compliance with industry standards confirms the assembly will not interfere with the MRI imaging process.
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