| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2010-10-05 |
| タイトル |
|
|
タイトル |
Open-Type Magnetically Shielded Room Combined With Square Cylinders Made of Magnetic and Conductive Materials for MRIs |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Electromagnetic field |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
leakage magnetic field |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
magnetic resonance imaging |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
multilayered magnetically shielded room |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
opening |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Yamazaki, Keita
Hirosato, Shigetaka
Kamata, Kiyotaka
Muramatsu, Kazuhiro
Kobayashi, Koichiro
Haga, Akira
|
| 著者(機関) |
|
|
値 |
Research and Development Institute, Takenaka Corporation |
| 著者(機関) |
|
|
値 |
Research and Development Institute, Takenaka Corporation |
| 著者(機関) |
|
|
値 |
Department of Electric Control Engineering, Kagoshima National College of Technology |
| 著者(機関) |
|
|
値 |
Department of Electrical and Electronic Engineering, Saga University |
| 著者(機関) |
|
|
値 |
Department of Welfare Engineering, Iwate University |
| 著者(機関) |
|
|
値 |
Department of Electrical Engineering and Information Technology, Tohoku Gakuin University |
| 登録日 |
|
|
日付 |
2010-10-05 |
| 書誌情報 |
IEEE TRANSACTIONS ON MAGNETICS
巻 44,
号 11,
p. 4183-4186,
発行日 2008-11-01
|
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0018-9464 |
| Abstract |
|
|
内容記述タイプ |
Other |
|
内容記述 |
To improve the comfort of hospital patients, we have developed a new open-type magnetically shielded room (MSR) for magnetic resonance imaging (MRI), constructed by stacking square cylinders composed of magnetic material on the inside and a conductive material on the outside. The magnetic cylinder shields against leakage of the magnetic field from the MRI, while the conductive outer cylinder prevents intrusion of the electromagnetic field from outside by waveguide attenuation. First, the optimal design of the magnetic cylinder was determined, using 3-D magnetic field analysis with a simple cubic MSR. Second, the validity of the analysis and the practical realization of the designed MSR were investigated using a small experimental model. Finally, from a design perspective and the standpoint of saving space, the optimal combination of electromagnetically shielded glass and conductive cylinders made of aluminum was studied by measuring the electromagnetic shielding effect. As the optimal design of an open-type MSR for an MRI, we have adopted a combination of single-layered electromagnetically shielded glass together with stacked cylinders. These cylinders are made of a square cylinder, 144 × 144 mm and 300 mm long, made of silicon steel (thickness t = 1 mm) and divided into three parts along the axial direction, placed inside a second square cylinder made of aluminum, 150 × 150 mm and 300 mm long (t = mm). This MSR construction technique creates an open, spacious feeling inside the facility and can be easily fabricated at low cost. |
| 出版者 |
|
|
出版者 |
IEEE |
| 権利 |
|
|
権利情報 |
(c) 2008 IEEE |
| DOI |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1109/TMAG.2008.2002519 |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
itm-v44n11p4183-4186.pdf (748.8 kB)
