JPS6439704A - Apparatus for uniformizing field - Google Patents

Apparatus for uniformizing field

Info

Publication number
JPS6439704A
JPS6439704A JP62195318A JP19531887A JPS6439704A JP S6439704 A JPS6439704 A JP S6439704A JP 62195318 A JP62195318 A JP 62195318A JP 19531887 A JP19531887 A JP 19531887A JP S6439704 A JPS6439704 A JP S6439704A
Authority
JP
Japan
Prior art keywords
coil
virtual cylinder
static field
axial direction
field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62195318A
Other languages
Japanese (ja)
Other versions
JPH0434282B2 (en
Inventor
Koji Shibahara
Yoshiaki Hara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP62195318A priority Critical patent/JPS6439704A/en
Publication of JPS6439704A publication Critical patent/JPS6439704A/en
Publication of JPH0434282B2 publication Critical patent/JPH0434282B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

PURPOSE:To provide a static field compensating coil which assures large correctable field per unit current and can be constituted in small size by winding a coil lead in parallel in the axial direction with a particular angle to a virtual cylinder which is provided perpendicularly in the axial direction to the main static field in a static field generating apparatus which requires main static field having high uniformity such as a nuclear magnetic resonant image pickup apparatus. CONSTITUTION:Coil leads 4 in diameter of 1.6mm are provided in the axial direction Z of a virtual cylinder 5. Moreover total of 6n coil leads 4 are arranged, on the cross sectional plane of virtual cylinder 5, to the surface of virtual cylinder 5 with an angle phi forming with the main magnetic field direction X defined by the equation, phi=kpi/3+1/3 arc cos(n+1-2m)/n(n: a number of lead wires arranged from kpi/3 to(k+1)pi/3(n>=1); m: 1, 2, 3,..., n; k:0, 1, 2, 3, 4, 5). Since this coil corrects component proportional to X<2>-Y<2>, a current flowing through the coil is adjusted so that focusing is set to the coefficient of X<2>-Y<2> and such coefficient becomes zero.
JP62195318A 1987-08-06 1987-08-06 Apparatus for uniformizing field Granted JPS6439704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62195318A JPS6439704A (en) 1987-08-06 1987-08-06 Apparatus for uniformizing field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62195318A JPS6439704A (en) 1987-08-06 1987-08-06 Apparatus for uniformizing field

Publications (2)

Publication Number Publication Date
JPS6439704A true JPS6439704A (en) 1989-02-10
JPH0434282B2 JPH0434282B2 (en) 1992-06-05

Family

ID=16339170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62195318A Granted JPS6439704A (en) 1987-08-06 1987-08-06 Apparatus for uniformizing field

Country Status (1)

Country Link
JP (1) JPS6439704A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1014025A2 (en) 1998-12-15 2000-06-28 Calsonic Corporation Heat exchanger core, and method of assembling the heat exchanger core
US6357089B1 (en) 1998-02-24 2002-03-19 Sekisui Plastics Co., Ltd. Clip for a sheet electrode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357089B1 (en) 1998-02-24 2002-03-19 Sekisui Plastics Co., Ltd. Clip for a sheet electrode
EP1014025A2 (en) 1998-12-15 2000-06-28 Calsonic Corporation Heat exchanger core, and method of assembling the heat exchanger core

Also Published As

Publication number Publication date
JPH0434282B2 (en) 1992-06-05

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees