Abstract: The treatment couch includes a couch panel, a main supporting structure, an auxiliary supporting structure and a supporting beam. Both ends of the supporting beam are respectively connected to the main supporting structure and the auxiliary supporting structure.

Abstract: A radiotherapy equipment including: a rotating gantry, an X-beam generating assembly and a treatment couch. The X-beam generating assembly is on the rotating gantry, rotates about a rotation axis of the rotating gantry driven by the rotating gantry, and generates an X-beam deflected with respect to a rotating plane of the rotating gantry in a direction of the rotation axis, and the rotating gantry and the X-beam generating assembly are stationary in the direction of the rotation axis. The treatment couch is on a side of the rotating gantry for supporting a patient, and moves along the direction of the rotation axis to cooperate with a deflection of the X-beam to irradiate a target of the patient with the X-beam.

Abstract: The present invention discloses a copper alloy, which includes: 5 wt % to 15 wt % of Zn, 0.2 wt % to 2.5 wt % of Sn, 0.1 wt % to 2.0 wt % of Ni, 0.01 wt % to 0.3 wt % of P, 0 to 0.3 wt % of Mg, 0 to 0.5 wt % of Fe, and a balance of Cu and inevitable impurities. Preferably, it is controlled that 1.0 wt %?Ni+Sn?3.5 wt %, the weight ratio of Ni to Sn is 0.08 to 10; the weight ratio of Ni to P is 2 to 15, Ni and P form a NiP compound in a matrix. During the crystal orientation analysis using EBSD measurement, the area in a Brass orientation {011}<211> at a derivation angle of less than 15° accounts for 10% to 25%. The yield strength 600 MPa, the electrical conductivity is ?25% IACS, and the bending machinability is excellent because the value R/t in a GW direction is ?1 and the value R/t in a BW direction is ?2.

Abstract: Embodiments of the present disclosure provide a monitoring system for a radiotherapy center. The system includes at least one radiotherapy center and a monitoring cloud platform. The monitoring cloud platform is connected to the at least one radiotherapy center, and is configured to obtain operating parameters of at least one target device in the at least one radiotherapy center in real time. The monitoring cloud platform is further configured to control the at least one target device according to the operating parameters of the at least one target device in the at least one radiotherapy center.

Abstract: A radiotherapy head can include an electron accelerator, a deflection control assembly, a collimator, and a target material. The deflection control assembly is provided between the electron accelerator and the collimator, the collimator is provided with a plurality of collimating holes, and the target material is provided at an entrance of the each of the plurality of collimating holes; the deflection control assembly is configured to adjust a deflection angle of electron beams emitted by the electron accelerator, and emit angle-deflected electron beams to the target material; the target material is configured to convert the electron beams emitted to the target material into X-rays; and the collimator is configured to project the X-rays to a target via the plurality of collimating holes.

Abstract: The invention is a copper alloy with excellent comprehensive performance, including the following components in percentage by weight: 0.4 wt %-2.0 wt % of Ni, 0.2 wt %-2.5 wt % of Sn, 0.02 wt %-0.25 wt % of P, 0.001 wt %-0.5 wt % of Si, and the balance of Cu and unavoidable impurities. The copper alloy has a yield strength of 550 MPa or above, and an electrical conductivity of 38% IACS or above. A bending workability is as follows: the value of R/t in the GW direction is less than or equal to 1, and the value of R/t in the BW direction is less than or equal to 2; and after the copper alloy is kept at 150° C. for 1000 hours, a residual stress rate is greater than or equal to 75%, and the stress relaxation resistance is excellent.

Abstract: A radiation treatment head can include: a radiation source and a primary collimator, wherein the radiation source is configured to emit a radioactive beam; wherein the primary collimator is provided with a plurality of primary collimation channel groups; each of the primary collimation channel groups includes at least one primary collimation channel; and the radiation source and the primary collimator are movable relative to each other, so that the beam emitted from the radiation source is permissible to pass through any one of the primary collimation channels; and wherein the beam emitted from the radiation source, after passing through primary collimation channels of different primary collimation channel groups, forms fields with different sizes of areas on a reference plane.

Abstract: A microwave power control device can include: a microwave signal generator and a signal distribution circuitry connected to the microwave signal generator. The microwave signal generator is configured to generate microwave signals and transmit the microwave signals to the signal distribution circuitry; and the signal distribution circuitry is configured to distribute the microwave signals to n accelerating tubes according to a target microwave power distribution ratio, n being an integer greater than or equal to 2.

Abstract: The present disclosure provides a radiation therapy device and system. The radiation therapy device includes a first treatment head and a second treatment head. A beam emitted from the second treatment head intersects with a beam emitted from the first treatment head at an intersection point. The first treatment head is an X-ray treatment head, and the second treatment head is an X-ray treatment head, a multi-source focusing treatment head, or an intensity-modulated treatment head. The radiation therapy device may increase a dose rate at the intersection point.

Abstract: The invention is a precipitation-strengthened copper alloy, including the following components in percentage by weight: 80 wt %-95 wt % of Cu, 0.05 wt %-4.0 wt % of Sn, 0.01 wt %-3.0 wt % of Ni, 0.01 wt %-1.0 wt % of Si, and the balance of Zn and unavoidable impurities. According to the invention, the comprehensive performance of the alloy is improved by solution strengthening and precipitation strengthening; while the strength of the matrix is improved, the electrical conductivity of the alloy is hardly affected, the bending workability meets the requirements, and the stress relaxation resistance comparable to that of tin phosphor bronze is achieved. The comprehensive performance of the alloy of the invention is superior to that of the tin phosphor bronze C51900. Furthermore, the alloy of the invention is low in raw material cost, has obvious advantages in welding and plating.

Abstract: Provided are a window switching method, and device and storage medium thereof. The method comprises the steps: obtaining a first pre-reading keyword meeting the requirement in all contents on a page opened through a current window, determining a first pre-reading URL corresponding to the first pre-reading keyword, utilizing the pre-reading window to load a pre-reading page corresponding to the first pre-reading URL, and switching the pre-reading window loaded with the pre-reading page to the current window when an instruction of entering the pre-reading page is received. An improved pre-reading function can be achieved, and the technical problem of low user experience caused by the fact that contents on a pre-reading page cannot be displayed completely after switching to the pre-reading page is further solved.

Abstract: The present invention discloses copper alloy containing cobalt and silicon, which comprises (in percentage of weight): 69% to 92% of copper; 6.5% to 30.5% of zinc; 0.01% to 3% of cobalt; and 0.01% to 0.5% of silicon; wherein the total content of copper and zinc is greater than 95%, and the content of inevitable impurities is less than 0.2%. Preferably, the copper alloy comprises matrix phases of copper-zinc ? solid solution and CoxSiy precipitated phases; the CoxSiy precipitated phases are dispersedly distributed on a matrix phase; the percentage of the matrix phases by area is greater than or equal to 95%; and, the percentage of the CoxSiy precipitated phases by area is 0.01% to 5%.

Abstract: Provided are a window switching method, and device and storage medium thereof. The method comprises the steps: obtaining a first pre-reading keyword meeting the requirement in all contents on a page opened through a current window, determining a first pre-reading URL corresponding to the first pre-reading keyword, utilizing the pre-reading window to load a pre-reading page corresponding to the first pre-reading URL, and switching the pre-reading window loaded with the pre-reading page to the current window when an instruction of entering the pre-reading page is received. An improved pre-reading function can be achieved, and the technical problem of low user experience caused by the fact that contents on a pre-reading page cannot be displayed completely after switching to the pre-reading page is further solved.

Abstract: The present invention provides an extendible support mechanism in which a counterbalance system allows extension and retraction of the arm to be carried out with the same level of mechanical effort. Embodiments of the present invention allow the system to be used in a plurality of orientations, and thus the invention has particular utility in the extension and retraction of peripheral devices for radiotherapy systems, where use of a rotatable gantry is common.

Abstract: The present invention provides an extendible support mechanism in which a counterbalance system allows extension and retraction of the arm to be carried out with the same level of mechanical effort. Embodiments of the present invention allow the system to be used in a plurality of orientations, and thus the invention has particular utility in the extension and retraction of peripheral devices for radiotherapy systems, where use of a rotatable gantry is common.