Abstract: The present disclosure provides a method for growing scintillation crystals with multi-component garnet structure. According to the method, through weight compensating for reactants, introducing a flowing gas, adopting a new temperature field device, and optimizing process parameters, problems such as component deviation and crystal cracking during the crystal growth can be solved to a certain extent, and grown crystals have consistent performance and good repeatability.

Abstract: The present disclosure relates to a method for growing a crystal. The method includes: weighing reactants according to a molar ratio of the reactants according to a reaction equation for generating the crystal after a first preprocessing operation is performed on the reactants, wherein the first preprocessing operation includes a roasting operation under 800° C.˜1400° C.; placing the reactants on which a second preprocessing operation has been performed into a crystal growth device, wherein the second preprocessing operation includes at least one of an ingredient mixing operation or a pressing operation at room temperature; introducing a flowing gas into the crystal growth device after sealing the crystal growth device; and activating the crystal growth device to execute a crystal growth to grow the crystal based on Czochralski technique.

Abstract: The embodiments of the present disclosure disclose a method for controlling crystal growth. The method includes: obtaining an actual crystal parameter in a target time slice; obtaining a reference crystal parameter in the target time slice; determining a temperature control parameter based on the actual crystal parameter and the reference crystal parameter; determining a pulling control parameter based on the actual crystal parameter and the reference crystal parameter; and adjusting a temperature and a pulling speed in a next time slice after the target time slice respectively based on the temperature control parameter and the pulling control parameter.

Abstract: Embodiments of the present disclosure provide a sealing structure and a vacuum furnace. The sealing structure includes a baffle plate provided with a first through-hole, a first structural component provided with an internal hole for a component to be sealed to extend through, and a sealing assembly for sealing a gap between the baffle plate and the first structural component and a gap between the component to be sealed and the first structural component. The first through-hole extends through a first side surface and a second side surface of the baffle plate. The first structural component is connected to the baffle plate, at least a part of the internal hole is located within the first through-hole, and at least the part of the internal hole is not parallel to both the first side surface and the second side surface.

Abstract: The present disclosure provides a method for growing scintillation crystals with multi-component garnet structure. According to the method, through weight compensating for reactants, introducing a flowing gas, adopting a new temperature field device, and optimizing process parameters, problems such as component deviation and crystal cracking during the crystal growth can be solved to a certain extent, and grown crystals have consistent performance and good repeatability.

Abstract: The present disclosure relates to a method for growing a crystal. The method includes: weighing reactants according to a molar ratio of the reactants according to a reaction equation for generating the crystal after a first preprocessing operation is performed on the reactants, wherein the first preprocessing operation includes a roasting operation under 800° C.˜1400° C.; placing the reactants on which a second preprocessing operation has been performed into a crystal growth device, wherein the second preprocessing operation includes at least one of an ingredient mixing operation or a pressing operation at room temperature; introducing a flowing gas into the crystal growth device after sealing the crystal growth device; and activating the crystal growth device to execute a crystal growth to grow the crystal based on Czochralski technique.

Abstract: The present disclosure discloses a method for growing a crystal for detecting neutrons, gamma rays, and/or x rays. The method may include weighting reactants based on a molar ratio of the reactants according to a reaction equation (1?x?z)X2O3+SiO2+2xCeO2+zZ2O3?X2(1?x?Z)Ce2xZ2zSiO5+z/2O2? or (1?x?y?z)X2O3+yY2O3+SiO2+2xCeO2+zZ2O3?X2(1?x?y?z)Y2yCe2xZ2zSiO5+x/202?; placing the reactants on which a second preprocessing operation has been performed into a crystal growth device after an assembly processing operation is performed on at least one component of the crystal growth device; introducing a flowing gas into the crystal growth device after sealing the crystal growth device; and activating the crystal growth device to grow the crystal based on the Czochralski technique.

Abstract: The present disclosure discloses a method for growing a crystal for detecting neutrons, gamma rays, and/or x rays. The method may include weighting reactants based on a molar ratio of the reactants according to a reaction equation (1-x-z)x2O3+SiO2+2xCeO2+zZ2O3?X2(1-x-Z)Ce2xZ2zSiO5+x/2 O2? or (1-x-y-z)X2O3+yY2O3+SiO2+2xCeO2+zZ2O3?X2(1-x-y-z)Y2yCe2xZ2zSiO5+x/2 O2?; placing the reactants on which a second preprocessing operation has been performed into a crystal growth device after an assembly processing operation is performed on at least one component of the crystal growth device; introducing a flowing gas into the crystal growth device after sealing the crystal growth device; and activating the crystal growth device to grow the crystal based on the Czochralski technique.

Abstract: The present disclosure provides an apparatus for crystal growth. The apparatus may include a furnace chamber a temperature field device placed at least partially into the furnace chamber. The furnace chamber may be a non-closed structure, and the temperature field device may be sealed.

Abstract: The present disclosure provides a temperature field device for crystal growth. The temperature field device may include a drum; a filler filled in the drum and configured to support a crucible; a bottom plate mounted on a bottom of the temperature field device and covering a bottom end of the drum; and a cover plate mounted on a top of the temperature filed device and covering a top end of the drum.

Abstract: The present disclosure relates to a method for growing a crystal. The method includes: weighing reactants according to a molar ratio of the reactants according to a reaction equation for generating the crystal after a first preprocessing operation is performed on the reactants, wherein the first preprocessing operation includes a roasting operation under 800° C.˜1400° C.; placing the reactants on which a second preprocessing operation has been performed into a crystal growth device, wherein the second preprocessing operation includes at least one of an ingredient mixing operation or a pressing operation at room temperature; introducing a flowing gas into the crystal growth device after sealing the crystal growth device; and activating the crystal growth device to execute a crystal growth to grow the crystal based on Czochralski technique.

Abstract: The present disclosure discloses a method for growing a crystal in oxygen atmosphere. The method may include compensating a weight of a reactant, introducing a flowing gas, improving a volume ratio of oxygen during a cooling process, providing a heater in a temperature field, and optimizing parameters. According to the method, problems may be solved, for example, cracking and component deviation of the crystal during a crystal growth process, and without oxygen-free vacancy. The method for growing the crystal may have excellent repeatability and crystal performance consistency.

Abstract: The present disclosure provides a temperature field device for crystal growth. The temperature field device may include a first drum; a second drum located inside the first drum; a filler filled in a space between the first drum and the second drum; a bottom plate mounted on a bottom of the temperature field device and covering a bottom end of the first drum; and a first cover plate mounted on a top of the temperature filed device and covering a top end of the first drum.

Abstract: The present disclosure provides a temperature field device for crystal growth. The temperature field device may include a drum; a filler filled in the drum and configured to support a crucible; a bottom plate mounted on a bottom of the temperature field device and covering a bottom end of the drum; and a cover plate mounted on a top of the temperature filed device and covering a top end of the drum.

Abstract: The present disclosure provides a temperature field device for crystal growth. The temperature field device may include a first drum; a second drum located inside the first drum; a bottom plate mounted on a bottom of the temperature field device and covering a bottom end of the first drum; and a first cover plate mounted on a top of the temperature filed device and covering a top end of the first drum.

Abstract: The present disclosure discloses a method for growing a crystal in oxygen atmosphere. The method includes compensating a weight of a reactant, introducing a flowing gas, improving a volume ratio of oxygen during a cooling process, providing a heater in a temperature field, and optimizing parameters. According to the method, cracking and component deviation of the crystal during a crystal growth process, and without oxygen free vacancy can be solved. The method for growing the crystal has excellent repeatability and crystal performance consistency.

Abstract: The present disclosure relates to a method for growing a crystal. The method includes: weighting reactants according to a molar ratio of the reactants according to a reaction equation for generating the crystal after a first preprocessing operation is performed on the reactants, wherein the first preprocessing operation includes a roasting operation under 800° C.˜1400° C.; placing the reactants on which a second preprocessing operation has been performed into a crystal growth device, wherein the second preprocessing operation includes at least one of an ingredient mixing operation or a pressing operation at room temperature; introducing a flowing gas into the crystal growth device after sealing the crystal growth device; and activating the crystal growth device to execute a crystal growth to grow the crystal based on Czochralski technique.

Abstract: The present disclosure provides a method for crystal growth. The method may include at one of the following operations: weighing reactants for growing an oxide crystal after a first preprocessing operation is performed on the reactants; placing the reactants, on which a second preprocessing operation has been performed, into a crystal growth device after an assembly preprocessing operation is performed on at least one component of the crystal growth device, wherein the at least one component of the crystal growth device includes a crucible, the assembly preprocessing operation includes at least one of a coating operation, an acid soaking and cleaning operation, or an impurity cleaning operation; introducing a protective gas into the crystal growth device after sealing the crystal growth device; activating the crystal growth apparatus to execute the crystal growth; and adding reactant supplements into the crystal growth device in real-time during the crystal growth.

Abstract: The present disclosure provides a method for crystal growth. The method may include at one of the following operations: weighing reactants for growing an oxide crystal after a first preprocessing operation is performed on the reactants; placing the reactants, on which a second preprocessing operation has been performed, into a crystal growth device after an assembly preprocessing operation is performed on at least one component of the crystal growth device, wherein the at least one component of the crystal growth device includes a crucible, the assembly preprocessing operation includes at least one of a coating operation, an acid soaking and cleaning operation, or an impurity cleaning operation; introducing a protective gas into the crystal growth device after sealing the crystal growth device; activating the crystal growth apparatus to execute the crystal growth; and adding reactant supplements into the crystal growth device in real-time during the crystal growth.

Abstract: The present disclosure provides a temperature field device for crystal growth. The temperature field device may include a first drum; a second drum located inside the first drum; a filler filled in a space between the first drum and the second drum; a bottom plate mounted on a bottom of the temperature field device and covering a bottom end of the first drum; and a first cover plate mounted on a top of the temperature filed device and covering a top end of the first drum.