Part of the process of restarting the neutral injection system is to ‘condition the ducts’ through which the beams pass. The energy from the beams tends to heat tiny amounts of residual gas that are on the surfaces of the ducts, and to heat the walls of the ducts. Heating surfaces in a vacuum system usually forces gas to be released, creating even more heating and thus creating an almost invisible avalanche process. The release of this gas leads to the requirement to turn off the beams. This is not as big a problem as it sounds, because in doing this the ducts are cleaned a little, and over just a few days they are back into full operation. This cleaning is almost analogous to a sneeze.

Source: EFDA

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Projekty badawcze realizowane przez IFPiLM są finansowane ze środków Ministerstwa Edukacji i Nauki i Narodowego Centrum Nauki oraz ze środków Komisji Europejskiej na podstawie umowy grantowej No 101052200, w ramach Konsorcjum EUROfusion. Wsparcia finansowego udzielają także: Międzynarodowa Agencja Energii Atomowej, Agencja Fusion for Energy, Europejska Agencja Kosmiczna i Konsorcjum LaserLab.

 

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