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Matrix isolation by solid helium

机译:固体氦气分离基质

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We have developed a new technique for embedding micro-impurities into solid helium. It is based on sedimentation of a jet of helium mixed with impurities on a gas-liquid and then liquid-solid interface, the He solid is continuously moved downwards by removing helium gas from the bottom of the cell. A guest particle density of 3 x 10(19) per cc and a doped crystal growth rate of 1 mm per 20 s were achieved. A CARS study of deuterium stabilized in solid He showed significant size effect in the Raman scattering cross section for J = 1 and 0 Q-lines. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 8]
机译:我们已经开发出一种将微量杂质嵌入到固体氦气中的新技术。它是基于混合了杂质的氦气射流在气-液界面上的沉淀,然后是液-固界面,通过从池底部除去氦气,He固体不断向下移动。达到每立方厘米3 x 10(19)的客体颗粒密度和每20 s 1毫米的掺杂晶体生长速率。 CARS对氘在固体He中稳定的研究表明,对于J = 1和0 Q线,拉曼散射截面中的尺寸效应显着。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:8]

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