Monday , November 29 2021

Tech: Imaging enabling better testing of components for appliances – (Report)



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The use of nuclear fusion, which gives the sun and stars, to help meet the energy needs of the world, is closer after researchers demonstrated that the use of & # 39; both types a & # 39; image can & # 39; help them assess the safety and reliability of the parts used in & # 39; energy equipment fusion.

Scientists from the University & # 39; Swansea, the Culham Center for Fusion Energy, ITER in France and the Max Planck Institute of Plasma Physics in Germany tried image of X-ray and neutron to test the robustness of the parties.

They found that both methods produce valuable data that can & # 39; used in developing & # 39; components.

The sun is shining example & # 39; fusion in action. In extreme pressure and temperature at the center of the sun, the atoms travel fast enough to merge and release vast amounts of & # 39; energy. For decades & # 39; years, scientists have been looking for how to use this safe, carbon-free and virtually unlimited source & # 39; power.

main obstacle is the staggering temperatures components in fusion devices must withstand: up to 10 times the heat of the sun center.

One of the main approaches to fusion, the magnetic closed, requires reactors to some of the larger temperature gradients in the world, and potentially in the universe: plasmas reach highs & # 39; 150 million ° C and krijopump, which is just meters away, as -269 ° C

It is critical that researchers can test – b & # 39; non-destructive way – the robustness of the engineering components to work in & # 39; so extreme environment.

The team & # 39; research focused on one critical component, called monoblock, which is a pipe carrying coolant. It was the first time that the new design tungsten monoblock printed by & # 39; computerized tomography. They used the neutron imaging device & # 39; ISIS Neutron Source and muon, IMAT.

Dr. Minniti Triestino Council of Science and Technology Facilities said:

"Each technique had benefits and its own disadvantages. The advantage of & # 39; image of neutrons on the image with the x-ray is that neutrons are significantly more penetrating through tungsten .

Therefore, it is feasible to sample & # 39; samples containing higher volumes of & # 39; tungsten. The neutron tomography also allows to investigate the whole monoblock b & # 39; non-destructive way, by removing the need to produce samples & # 39; 'region & # 39; interests "

Llion Dr. Evans of University College & # 39; Swansea Engineering said:

"This work is proof of concept that these two methods & # 39; tomography can produce valuable data. In future these complementary techniques can be used or cycle of & # 39; research and development of Design of fusion component or the manufacturing quality assurance. "

The next step is to convert the 3D images produced by this powerful technique in & # 39; & # 39 simulations, engineering b & # 39; resolution micro-scale. This technique, known as a method of & # 39; finite element based on the image (IBFEM), enabling performance & # 39; each party must be assessed individually and give performances for minor deviations from design caused by & # 39; manufacturing processes.

The research was published in Fusion Engineering and Design.

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