[특허]Method of obtaining internal information of a measuring target from the out-side by the application of a nuclear magneti

Method of obtaining internal information of a measuring target from the out-side by the application of a nuclear magneti 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01R-033/08
출원번호	US-0387138 (1973-08-09)
우선권정보	JA-0013508 (1973-02-02)
발명자 / 주소	Abe Zenuemon (Sapporo JA) Tanaka Kunio (Sapporo JA) Hotta Masao (Sapporo JA) Imai Masaaki (Iwamisawa JA)
출원인 / 주소	Kichizo Niwa (Sapporo JA 03)
인용정보	피인용 횟수 : 54 인용 특허 : 0

초록 ▼

This invention relates to a method of obtaining internal information of the body to be investigated (target) by the application to the target of a nuclear magnetic resonance phenomenon, in which the measuring target is placed in a homogeneous magnetic field Ho and a static or scanning magnetic field Hs is superimposed on the homogenous magnetic field Ho within a specified area of the target; from the inside or outside thereof. A high frequency field H1 of a frequency determined by the static field Ho +Ds in the measuring target area (MT) is applied uniformly to the body thereby obtaining information of a nuclear magnetic substance disposed within the specified area of the body, i.e., the measuring target in accordance with detection of a resonance frequency defined by Ho +Ds. Alternatively, the scanning field Ds may be applied to the body only outside of the target region and a resonance frequency defined by Ho only then is detected as to the target MT. The high frequency field may be constant or pulsed.

대표청구항 ▼

A method of obtaining internal information of a specified area of a measuring target by use of a nuclear magnetic resonance phenomenon, including the steps of: providing a homogeneous magnetic field H0, disposing the measuring target in said homogeneous magnetic field, generating a scanning magnetic field Ds and applying said scanning magnetic field Ds in superimposed relationship with said homogeneous magnetic field H0 to establish a level of field intensity in the specified area to be examined which differs substantially from the level of field intensity of the remaining portion of the measuring target, providing a high-frequency magnetic field H1 of a resonance frequency of a nuclear magnetic substance in the measuring target area, said high-frequency being determined by the level of field intensity in the said target area, and applying the high-frequency magnetic field in a direction perpendicular to the field H0 so as to encompass at least said specified area of the measuring target and regions adjacent said specified area of said measuring target, to produce a signal representative of a nuclear magnetic substance in said specified area, and detecting and processing said signal for obtaining information of said nuclear magnetic substance of said specified area of said measuring target.

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Method of obtaining internal information of a measuring target from the out-side by the application of a nuclear magneti 원문보기

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연합인증

Method of obtaining internal information of a measuring target from the out-side by the application of a nuclear magneti 원문보기

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연구과제 타임라인

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