Negative-hydrogen-ion production from a nanoporous 12CaO $\cdot$ 7Al2O3 (C12A7) electride surface
Plasma Physics
2019-11-26 v1
Abstract
A high production rate of negative hydrogen ion was observed from a nanoporous C12A7 electride surface immersed in hydrogen/deuterium low-pressure plasmas. The target was biased at 10-170 V negatively and the target surface was bombarded by H3 + ions from the plasma. The production rate was 1-2 orders higher than a clean molybdenum surface. The measured H-energy spectrum indicates that the major production mechanism is desorption by sputtering. This material has potential to be used as production surface of cesium-free negative ion sources for accelerators, heating beams in nuclear fusion, and surface modification for industrial applications.
Keywords
Cite
@article{arxiv.1911.11007,
title = {Negative-hydrogen-ion production from a nanoporous 12CaO $\cdot$ 7Al2O3 (C12A7) electride surface},
author = {Mamiko Sasao and Roba Moussaoui and Dmitry Kogut and James Ellis and Gilles Cartry and Motoi Wada and Katsuyoshi Tsumori and Hideo Hosono},
journal= {arXiv preprint arXiv:1911.11007},
year = {2019}
}