Abstract: The present invention discloses a high-entropy soft magnetic alloy with 900 K high-temperature resistance, comprising Fe, Co, Ni, Si and Al, and the atomic percent of the alloy composition is expressed as FexCoyNizSimAln, wherein x=40%-80%, y=20%-60%, z=0-30%, m=0-20%, n=0-20%, and x+y+z+m+n=100%; the atomic percent of other doping elements is p=0-5%, and 0.5?m/n?3; the performance indexes of the material include: at room temperature, saturation magnetization Ms=90-150 emu/g, and coercive force Hc=0.1-15 Oe; and at 900 K, saturation magnetization Ms=70-130 emu/g, and coercive force Hc=0.1-25 Oe.

Abstract: Systems and methods for image correction are provided. The systems and methods may obtain raw data of a target object. The systems and methods may determine, based on the raw data of the target object, a target phase. The systems and methods may generate a first image corresponding to the target phase. The systems and methods may determine, using a preset evaluation tool, an image quality evaluation result of the first image. In response to determining that the image quality evaluation result of the first image does not satisfy a preset condition, the systems and methods may generate a set of corrected raw sub-data of the target object corresponding to the target phase by correcting a set of raw sub-data of the target object corresponding to the target phase. The systems and methods may generate, based on the set of corrected raw sub-data of the target object, a corrected image corresponding to the first image.

Abstract: The present disclosure discloses a method for positioning. The method may include obtaining a scout image of a target object and inputting the scout image of the target object into a positioning model. The method may also include determining a positioning frame in the scout image based on an output result of the positioning model. The positioning model may be obtained by training based on training scout images and information of the gold standard positioning frames. Each of the gold standard positioning frames may be in, from, or determined based on one of the training scout images and used for scanning.

Abstract: The present disclosure is related to systems and methods for controlling a patient bed of a medical device. A method includes determining whether a first gesture on the touch panel satisfies a first trigger condition; in response to determining that the first gesture satisfies the first trigger condition, generating, instructions for causing at least one icon to be displayed on the touch panel, the at least one icon being configured to control the movement of the patient bed; and determining at least one movement parameter of the patient bed based at least on a second gesture directed to the at least one icon.

Abstract: Systems and methods for positioning in medical systems are provided. The system may obtain data associated with a scanning range of a subject. The system may also obtain an image of the subject on a couch of a medical radiation device. The image may be acquired by an imaging device when the couch is at a first position. The system may determine a position of the scanning range of the subject in the image. The system may further cause, based on the position of the scanning range in the image, the couch to move to a second position. The scanning range of the subject may be in a radiation region of the medical radiation device when the couch is located at the second position.