期刊
出版社
ELSEVIER
DOI: 10.1016/j.nimb.2023.165143
关键词
Negative hydrogen ion; Gas target; Neutralization efficiency; Quality of the beam
This study examined the neutralization process and beam quality of a hydrogen beam by emitting negative hydrogen ions to a hydrogen target. The findings showed that the neutralization efficiency was influenced by variables such as the transport distance, energy, and target gas density. However, the maximal neutralization efficiency was not affected by the density of the target gas or the energy of the negative hydrogen ions.
The neutralization process and beam quality of a hydrogen beam prepared by emitting 1---10 MeV negative hydrogen ions to a hydrogen target were studied. The simulation of the neutralization of negative hydrogen ions followed the construction of the neutralization theoretical model and beam transport model. Finally, calculations and analyses were performed to determine the effects of various variables on the neutralization of negative hydrogen ions, such as the transport distance, energy, and target gas density. According to the findings, since negative hydrogen ions in the target gas are transmitted farther, neutralization efficiency first rises and then falls. To achieve the highest neutralization efficiency, the gas vessel must be thicker depending on the incoming negative hydrogen ions are more energetic. Conversely, the denser the target gas, the thinner the gas vessel must be. The maximal neutralization efficiency, however, is unaffected by the density of the target gas or the negative hydrogen ion energy.
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