title: ÐÐ·ÑÑÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð´Ð¸Ð°Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÑ Ð¼Ð¸ÐºÑÐ¾ÑÐ°ÑÑÐ¸Ñ Ð¸ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¸Ñ Ð·Ð°Ñ Ð²Ð°ÑÐ° Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÐ¼Ð¸ Ð»Ð¾Ð²ÑÑÐºÐ°Ð¼Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Particle loading and behavior in magnetic traps
Creators: name: ÐÐ°Ð½Ð³ÑÑÐºÐ°Ñ, ÐÐ»Ð¸Ð·Ð°Ð²ÐµÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐ°Ð³Ð½Ð¸ÑÐ½ÑÐµ Ð»Ð¾Ð²ÑÑÐºÐ¸ Ð´Ð»Ñ Ð¿Ð»Ð°Ð·Ð¼Ñ
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description: This thesis is devoted to the study of a particleâs magnetic trapping. Being trapped, or levitated, the particle becomes well-isolated, which makes it suitable for various levitodynamics applications. In experimental part of the thesis, an efficiency of nebulization as a trap loading technique is investigated. 5 suspensions of silica and polymer particles 1.5-5.2 Î¼m in size are sprayed via a jet nebulizer and studied by optical microscopy and high-speed imaging. The nebulization setup performs its function properly but requires further improvements such as increasing the number of produced particles, their visualization and launching speed control, and implementing dehydration procedures. In modeling part of the work, 8 different configurations of horizontal magnetic traps are numerically simulated and compared. Geometries built from cone, cylindrical and pencil-shape permanent magnets are consistently investigated to determine their trapping ability. As a result, 6 strong magnetic gaps including 3 configurations of rods and 3 configurations of pencil-shape magnets are revealed. The pencil-shape magnets demonstrate better localization of the trapping area and provide trap depth of ~7Â·10^(-18) J which is large enough to overwhelm the thermal fluctuations. An effect of geometrical parameters on the pencil configurationâs performance is studied, and an optimal tip radius is 75 Î¼m.