RU94036861A - Tomograph with thermal protection of object of examination
- Google Patents
Tomograph with thermal protection of object of examination
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Publication number
RU94036861A
RU94036861ARU94036861/25ARU94036861ARU94036861ARU 94036861 ARU94036861 ARU 94036861ARU 94036861/25 ARU94036861/25 ARU 94036861/25ARU 94036861 ARU94036861 ARU 94036861ARU 94036861 ARU94036861 ARU 94036861A
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Application filed by Ю.А. Ковальский, В.Н. СтоляровfiledCriticalЮ.А. Ковальский
Priority to RU94036861/25ApriorityCriticalpatent/RU94036861A/en
Publication of RU94036861ApublicationCriticalpatent/RU94036861A/en
FIELD: tomographs for examination of biological objects. SUBSTANCE: tomograph uses an electromagnetic system for setting up a static magnetic field. An additional conductor with current is introduced in the object to be examined, current in the conductor is set in such a manner that non-uniformity of the magnetic field caused by this current would eliminate local non-uniformities of the magnetic field. At the same time the magnetic circuit has such a shape that its horizontal sections are considerably longer than the vertical ones, which makes it possible to move away the patient from that part of the electromagnet yoke that carries the electromagnet coils. EFFECT: enhanced uniformity of magnetic field.
Claims (1)
Предложен томограф для исследования биологических объектов, включающий электромагнитную систему для создания постоянного магнитного поля. Для повышения однородности магнитного поля в исследуемый объем вводят дополнительный проводник с током, ток в котором устанавливают таким образом, чтобы вызванная этим током неоднородность магнитного поля устранила локальные неоднородности магнитного поля. В то же время форма магнитопровода выполнена таким образом, что его горизонтальные участки значительно длиннее вертикальных, что дает возможность удалить исследуемого пациента от той части ярма электромагнита, на которой расположены катушки электромагнита.A tomograph is proposed for the study of biological objects, including an electromagnetic system for creating a constant magnetic field. To increase the uniformity of the magnetic field, an additional conductor with a current is introduced into the volume under investigation, the current in which is set so that the magnetic field inhomogeneity caused by this current eliminates local magnetic field inhomogeneities. At the same time, the shape of the magnetic circuit is designed in such a way that its horizontal sections are much longer than vertical, which makes it possible to remove the patient under study from the part of the electromagnet yoke on which the electromagnet coils are located.
RU94036861/25A1994-09-301994-09-30Tomograph with thermal protection of object of examination
RU94036861A
(en)
NMR APPARATUS FOR THE INVESTIGATION OF A BODY, SPECIFICALLY FOR IMAGING THE SKIN OF THE MENNISCODY BODY, AND DEVICE FOR THE STRUCTURE OF A MAGNETIC FIELD GRADIENT IN SUCH APPLIANCE
FOERFARANDE OCH ANORDNING FOER AVBILDNING AV ETT OMRAODE UNDER ANVAENDANDE AV KAERNMAGNETISK RESONANS, VARVID HUVUDMAGNETEN HAR EN STYRBAR FAELTAMPLITUD.