Gaseous 3He-3He magnetic dipolar spin relaxation.
Gaseous 3He-3He magnetic dipolar spin relaxation.
复制标题
气态 3He-3He 磁偶极自旋弛豫。
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
H. Middleton
中科院分区：
文献类型：
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作者：
N. R. Newbury;A. S. Barton;G. D. Cates;W. Happer;H. Middleton
我们推导了气态[sup 3]He的核自旋弛豫率，这是由于[sup 3]He核自旋之间的磁偶极相互作用引起的。这种偶极弛豫速率的数值计算温度从0.1 K到550 K。在室温下，[sup 3]He密度为10 amagat时的弛豫时间为74.4 h.我们制备了一系列高密度（4- 12 amagat）[sup 3]He样品，其零弛豫受磁偶极相互作用的限制。我们的理论和实验结果都是特别重要的[sup 3]He，通过与光泵Rb蒸汽自旋交换极化的日益增长的使用。
We derive the nuclear-spin relaxation rate of gaseous [sup 3]He due to the magnetic-dipole interaction between the [sup 3]He nuclear spins. This dipolar relaxation rate is numerically evaluated for temperatures from 0.1 K to 550 K. At room temperature, the relaxation time for a [sup 3]He density of 10 amagats is 74.4 h. We have made a series of high-density (4--12 amagat) [sup 3]He samples for which nulcear relaxation is limited by the magnetic-dipole interaction. Both our theoretical and experimental results are particularly important for the growing use of [sup 3]He, polarized through spin exchange with optically pumped Rb vapor.