JPS6488171A - Mri device - Google Patents

Mri device

Info

Publication number
JPS6488171A
JPS6488171A JP62244002A JP24400287A JPS6488171A JP S6488171 A JPS6488171 A JP S6488171A JP 62244002 A JP62244002 A JP 62244002A JP 24400287 A JP24400287 A JP 24400287A JP S6488171 A JPS6488171 A JP S6488171A
Authority
JP
Japan
Prior art keywords
power source
channel
channels
magnetic field
source part
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.)
Pending
Application number
JP62244002A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Usui
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62244002A priority Critical patent/JPS6488171A/en
Publication of JPS6488171A publication Critical patent/JPS6488171A/en
Pending legal-status Critical Current

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  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

PURPOSE:To improve the utilization rate of a power source and to reduce the size of the MRI device by obtaining gradient magnetic field power supply for forming a gradient magnetic field in X, Y and Z direction from a common power source part. CONSTITUTION:Gradient coils 1, 2, and 3 of three channels are supplied with electric power from the common power source part 7 through amplifier parts 4b, 5b and 6b of the respective channels. At this time, the electric power is twice for the X channel, 2.67 times for the Y channel, and three times for the Z channels as large as when the magnetic field is neither tilted nor slowed. When an output current is congested to a specific channel, output currents of other channels may be small, so the common power source part 7 handles them sufficiently when having capacity three times as large as the standardized electric power of each channel. Therefore, the electric capacity is less than when power source parts are provided in every channel, the utilization efficiency of the power source is improved, and the device is reduced in size and weight.
JP62244002A 1987-09-30 1987-09-30 Mri device Pending JPS6488171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62244002A JPS6488171A (en) 1987-09-30 1987-09-30 Mri device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62244002A JPS6488171A (en) 1987-09-30 1987-09-30 Mri device

Publications (1)

Publication Number Publication Date
JPS6488171A true JPS6488171A (en) 1989-04-03

Family

ID=17112252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62244002A Pending JPS6488171A (en) 1987-09-30 1987-09-30 Mri device

Country Status (1)

Country Link
JP (1) JPS6488171A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003007011A1 (en) * 2001-07-09 2003-01-23 Koninklijke Philips Electronics N.V. Power supply for mri gradient coils

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003007011A1 (en) * 2001-07-09 2003-01-23 Koninklijke Philips Electronics N.V. Power supply for mri gradient coils
US6646439B1 (en) 2001-07-09 2003-11-11 Koninklijke Philips Electronics N.V. Circuit arrangement for delivering power to coils

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