Influence of high frequency AC magnetic field on trapped magnetic field

Jun Ogawa; Satoshi Fukui; Tetsuo Oka; Mitsugi Yamaguchi; Takao Sato; Mamoru Takada; Ryuichi Sato; Masaru Tomita

doi:10.1109/TASC.2007.899000

Influence of high frequency AC magnetic field on trapped magnetic field

Jun Ogawa, Satoshi Fukui, Tetsuo Oka, Mitsugi Yamaguchi, Takao Sato, Mamoru Takada, Ryuichi Sato, Masaru Tomita

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

8 Citations (Scopus)

Abstract

The trapped magnetic field in an HTS bulk is decayed and even erased by the application of an AC magnetic field whose amplitude is much smaller than the maximum trapped magnetic field. In previous experiments, the decay of the trapped magnetic field was shown to be due to the temperature rise of the bulk caused by the AC losses. Especially, in a high frequency magnetic field, AC losses are larger and the decay of the trapped magnetic field is accelerated by this AC loss increase. We investigated the time relationships of the AC loss of the HTS bulk in a high frequency magnetic field using the thermal equilibrium equation.

Original language	English
Pages (from-to)	3024-3027
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	17
Issue number	2
DOIs	https://doi.org/10.1109/TASC.2007.899000
Publication status	Published - 2007 Jun
Externally published	Yes

Keywords

AC loss
Bulk temperature
HTS bulk
Thermal equilibrium equation
Trapped magnetic field

ASJC Scopus subject areas

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

Access to Document

10.1109/TASC.2007.899000

Cite this

@article{28e28d9b9ff04018ae6c7e3c8df243e4,

title = "Influence of high frequency AC magnetic field on trapped magnetic field",

abstract = "The trapped magnetic field in an HTS bulk is decayed and even erased by the application of an AC magnetic field whose amplitude is much smaller than the maximum trapped magnetic field. In previous experiments, the decay of the trapped magnetic field was shown to be due to the temperature rise of the bulk caused by the AC losses. Especially, in a high frequency magnetic field, AC losses are larger and the decay of the trapped magnetic field is accelerated by this AC loss increase. We investigated the time relationships of the AC loss of the HTS bulk in a high frequency magnetic field using the thermal equilibrium equation.",

keywords = "AC loss, Bulk temperature, HTS bulk, Thermal equilibrium equation, Trapped magnetic field",

author = "Jun Ogawa and Satoshi Fukui and Tetsuo Oka and Mitsugi Yamaguchi and Takao Sato and Mamoru Takada and Ryuichi Sato and Masaru Tomita",

year = "2007",

month = jun,

doi = "10.1109/TASC.2007.899000",

language = "English",

volume = "17",

pages = "3024--3027",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "2",

}

TY - JOUR

T1 - Influence of high frequency AC magnetic field on trapped magnetic field

AU - Ogawa, Jun

AU - Fukui, Satoshi

AU - Oka, Tetsuo

AU - Yamaguchi, Mitsugi

AU - Sato, Takao

AU - Takada, Mamoru

AU - Sato, Ryuichi

AU - Tomita, Masaru

PY - 2007/6

Y1 - 2007/6

N2 - The trapped magnetic field in an HTS bulk is decayed and even erased by the application of an AC magnetic field whose amplitude is much smaller than the maximum trapped magnetic field. In previous experiments, the decay of the trapped magnetic field was shown to be due to the temperature rise of the bulk caused by the AC losses. Especially, in a high frequency magnetic field, AC losses are larger and the decay of the trapped magnetic field is accelerated by this AC loss increase. We investigated the time relationships of the AC loss of the HTS bulk in a high frequency magnetic field using the thermal equilibrium equation.

AB - The trapped magnetic field in an HTS bulk is decayed and even erased by the application of an AC magnetic field whose amplitude is much smaller than the maximum trapped magnetic field. In previous experiments, the decay of the trapped magnetic field was shown to be due to the temperature rise of the bulk caused by the AC losses. Especially, in a high frequency magnetic field, AC losses are larger and the decay of the trapped magnetic field is accelerated by this AC loss increase. We investigated the time relationships of the AC loss of the HTS bulk in a high frequency magnetic field using the thermal equilibrium equation.

KW - AC loss

KW - Bulk temperature

KW - HTS bulk

KW - Thermal equilibrium equation

KW - Trapped magnetic field

UR - http://www.scopus.com/inward/record.url?scp=34547428931&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547428931&partnerID=8YFLogxK

U2 - 10.1109/TASC.2007.899000

DO - 10.1109/TASC.2007.899000

M3 - Article

AN - SCOPUS:34547428931

SN - 1051-8223

VL - 17

SP - 3024

EP - 3027

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2

ER -

Influence of high frequency AC magnetic field on trapped magnetic field

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this