Evaluation of positional stability in active magnetic levitation using spherical HTS bulk for inertial nuclear fusion

Tao Wang; Hiroshi Ueda; Koh Agatsuma; Atsushi Ishiyama

doi:10.1109/TASC.2010.2098383

Evaluation of positional stability in active magnetic levitation using spherical HTS bulk for inertial nuclear fusion

Tao Wang, Hiroshi Ueda, Koh Agatsuma, Atsushi Ishiyama

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Fuel supply is a fundamental issue in application of inertial nuclear fusion. To address this issue, we propose the use of an HTS superconductor capsule containing nuclear fuel, which can levitate in a magnetic field. During magnetic levitation, positional stability is important because it affects levitation accuracy to the focal point of giant lasers. We have developed a numerical simulation program based on a 3-D hybrid finite element and boundary element method to evaluate positional stability during magnetic levitation. Moreover, we have optimally designed and constructed a multi-coil system wherein spherical HTS bulk of 5 mm diameter can levitate stably. Finally,we have conducted the experiments for the evaluation of magnetic levitation, and compared the results with our simulation.

Original language	English
Article number	5682064
Pages (from-to)	1579-1583
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	21
Issue number	3 PART 2
DOIs	https://doi.org/10.1109/TASC.2010.2098383
Publication status	Published - 2011 Jun 1

Keywords

3-D hybrid fem and BEM
Active magnetic levitation
Inertial fusion
Positional stability
Spherical HTS bulk

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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abstract = "Fuel supply is a fundamental issue in application of inertial nuclear fusion. To address this issue, we propose the use of an HTS superconductor capsule containing nuclear fuel, which can levitate in a magnetic field. During magnetic levitation, positional stability is important because it affects levitation accuracy to the focal point of giant lasers. We have developed a numerical simulation program based on a 3-D hybrid finite element and boundary element method to evaluate positional stability during magnetic levitation. Moreover, we have optimally designed and constructed a multi-coil system wherein spherical HTS bulk of 5 mm diameter can levitate stably. Finally,we have conducted the experiments for the evaluation of magnetic levitation, and compared the results with our simulation.",

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AU - Ueda, Hiroshi

AU - Agatsuma, Koh

AU - Ishiyama, Atsushi

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AB - Fuel supply is a fundamental issue in application of inertial nuclear fusion. To address this issue, we propose the use of an HTS superconductor capsule containing nuclear fuel, which can levitate in a magnetic field. During magnetic levitation, positional stability is important because it affects levitation accuracy to the focal point of giant lasers. We have developed a numerical simulation program based on a 3-D hybrid finite element and boundary element method to evaluate positional stability during magnetic levitation. Moreover, we have optimally designed and constructed a multi-coil system wherein spherical HTS bulk of 5 mm diameter can levitate stably. Finally,we have conducted the experiments for the evaluation of magnetic levitation, and compared the results with our simulation.

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