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ITER plans to implement several heating neutral beam injection (HNB) systems, which shoot the energetic neutral beams of hydrogen or deuterium atoms into the plasma. For efficient neutralization of the accelerated hydrogen or deuterium ions, a particular gas density profile along the beamline is required in the HNB system. A novel Monte Carlo simulation code has been developed which is able to simulate...
The Karlsruhe Tritium Neutrino experiment (KATRIN) is going to use a very large electro-static tandem spectrometer to measure the electron spectrum from the tritium beta decay, where several kilometers of non-evaporable getter (NEG) strips (type ST707) are to be used to achieve the UHV requirements. Different geometrical configurations of the NEG strips have been studied by Monte Carlo simulations...
The Karlsruhe Tritium Neutrino experiment (KATRIN) is a large vacuum system and aims to measure the electron neutrino mass from the β decay of tritium with unprecedented sensitivity. To achieve this purpose, the tritium gas flow has to be significantly reduced along the beamline by means of a modular differential pumping system. This paper studies systematically the vacuum performance of one of the...
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