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Updated: Aug 9, 2026

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选择性加载微米级粒子进入磁重力陷通过升华激活释放

Connor E Murphy1, Mario Duenas1, Daniel Iron1

  • 1Department of Physics, Montana State University, Bozeman, Montana 59717, USA.

The Review of scientific instruments
|June 24, 2024
PubMed
概括

一种新的升华激活释放 (SAR) 方法使用坎佛升华来精确地将微粒装入磁重力陷. 这种技术提供了低损耗,低粒子速度,以及适用于各种粒子大小和陷设计的多功能性.

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In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis. This...