A toroidal cooling accelerator neutron target device

Abstract

The application discloses a kind of annular cooling accelerator neutron target device.In the present application, the target sheet is cooled in a ring shape, avoiding the problem of reduced neutron energy caused by the obstruction of traditional back cooling structure to neutron generation; at the same time, the neutron target is forcibly cooled by using high thermal conductivity materials combined with temperature controller to regulate the flow of coolant, reducing the risk of excessively high neutron target temperature.

Description

Technical Field

[0001] This invention relates to the field of nuclear technology and its applications, and in particular to a toroidal cooled accelerator neutron target device. Background Technology

[0002] Commonly used accelerator neutron targets are tritium or deuterium targets, and the temperature of these targets cannot exceed 200°C during use. Therefore, a cooling device needs to be installed on the back of the neutron target to directly cool it. This method has a good cooling effect and can control the temperature of the neutron target to within tens of degrees Celsius. However, because the coolant has a certain thickness on the back of the neutron target and the back cooling structure is relatively complex, the energy of the neutrons generated by the accelerator neutron source is slowed down, resulting in inaccurate measurement data when using neutron energy for nuclear data measurement. Summary of the Invention

[0003] In view of this, the object of the present invention is to provide a neutron target device for a ring-shaped cooling accelerator.

[0004] This invention improves a neutron target device for a ring-shaped cooled accelerator, characterized in that the neutron target device consists of a target chamber shell, a cooling ring, a neutron target, a coolant circulation system, coolant, and heat sinks; the neutron target is circular in shape, with a cross-section consistent with the target chamber shell, and is vertically installed inside the target chamber shell, with the front of the neutron target facing the firing direction and the back of the neutron target facing away from the firing direction, the back of which is exposed to the atmosphere;

[0005] The cooling ring is arranged around the neutron target and outside the target chamber shell. The target chamber shell has upper and lower heat sinks in the vertical direction near the neutron target. The upper and lower heat sinks are located inside the cooling ring and divide the cooling ring into flow channels along the neutron target circumference.

[0006] The inlet and outlet channels of the cooling ring are connected to the coolant circulation system, and the coolant circulates in the cooling ring and the coolant circulation system.

[0007] Furthermore, a thermometer is installed on the back, and the temperature controller is connected to the thermometer and the coolant circulation system via a data cable.

[0008] Furthermore, the target chamber shell, cooling ring, and heat sink are integrated into a single structure.

[0009] Furthermore, the target chamber shell, cooling ring, and heat sink are made of aluminum alloy or other high thermal conductivity materials.

[0010] Furthermore, the temperature controller transmits the neutron target temperature data measured by the thermometer to the coolant circulation system. The coolant circulation system adjusts the coolant flow rate, thereby controlling the neutron target temperature below 200°C. Further, to reduce the neutron target temperature, this can be achieved by increasing the coolant flow rate and adding heat sinks. The coolant flow rate is adjustable, and the number of heat sinks is set to multiple.

[0011] The beneficial effects of this invention are as follows:

[0012] The annular cooling accelerator neutron target device of this invention employs a side-mounted annular cooling method, thereby controlling the neutron target temperature to not exceed 200°C. Simultaneously, it eliminates the auxiliary cooling device on the back of the neutron target, ensuring that the generated neutron energy remains unchanged. With water as the coolant and a flow rate of 0.5 L / min, the neutron target temperature is maintained below 60°C under bombardment by a 60 W deuterium ion beam. Attached Figure Description

[0013] Figure 1 This is a front view of a ring-shaped cooling accelerator neutron target device according to an embodiment of the present invention;

[0014] Figure 2 This is a side view of a neutron target device in a ring-shaped cooling accelerator according to an embodiment of the present invention;

[0015] In the diagram, 1. Target chamber shell, 2. Cooling ring, 3. Neutron target, 4. Thermometer, 5. Temperature controller, 6. Data transmission line, 7. Coolant circulation system, 8. Coolant, 9. Heat sink. Detailed Implementation

[0016] Example 1

[0017] The present invention will be described in detail with reference to the accompanying drawings and Embodiment 1.

[0018] like Figure 1 and Figure 2 As shown, the present invention improves a neutron target device for a ring-shaped cooled accelerator, characterized in that the neutron target device consists of a target chamber shell 1, a cooling ring 2, a neutron target 3, a coolant circulation system 7, a coolant 8, and heat sinks 9; the neutron target 3 is a circular plate with a cross-section consistent with the target chamber shell 1, the neutron target 3 is vertically installed inside the target chamber shell 1, the front of the neutron target 3 is the side facing the firing direction, the back of the neutron target 3 is the side away from the firing direction, and the back is exposed to the atmosphere;

[0019] The cooling ring 2 is arranged around the neutron target 3 on the outside of the target chamber shell 1. The target chamber shell 1 has upper and lower heat sinks 9 in the vertical direction near the neutron target 3. The upper and lower heat sinks 9 are located inside the cooling ring 2 and divide the cooling ring 2 into flow channels around the neutron target 3.

[0020] The inlet and outlet channels of the cooling ring 2 are connected to the coolant circulation system 7, and the coolant 8 circulates in the cooling ring 2 and the coolant circulation system 7.

[0021] Furthermore, a thermometer 4 is installed on the back, and the temperature controller 5 is connected to the thermometer 4 and the coolant circulation system via a data cable 6.

[0022] Furthermore, the target chamber shell 1, cooling ring 2, and heat sink 9 are integrated into one structure.

[0023] Furthermore, the target chamber shell 1, cooling ring 2, and heat sink 9 are made of aluminum alloy or other high thermal conductivity materials.

[0024] Furthermore, the temperature controller 5 transmits the neutron target temperature data measured by the thermometer 4 to the coolant circulation system 7, which adjusts the flow rate of the coolant 8 to control the neutron target 3 below 200°C.

[0025] Furthermore, in order to reduce the temperature of the neutron target, the flow rate of the coolant can be increased and more heat sinks can be added. The flow rate of the coolant 8 is adjustable, and the number of heat sinks 9 is set to multiple.

[0026] The device operates as follows: The temperature of the temperature controller 5 is set to 200℃, and the flow rate of the coolant 8 is adjusted to 10L / min; the heat from the ion beam is deposited on the neutron target and conducted to the coolant through the target chamber shell and cooling ring, where it is carried away by the coolant; the thermometer 3 measures the temperature on the neutron target and feeds it back to the temperature controller 5 in real time; if the temperature of the neutron target exceeds 200℃, the temperature controller 5 controls the coolant circulation system 6 to increase the coolant flow rate, so that the temperature of the neutron target drops below 200℃, thereby reducing the temperature of the neutron tube target plate 2.

[0027] The present invention has been described in detail above with reference to specific embodiments and exemplary examples. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments; the above descriptions should not be construed as limiting the present invention. Those skilled in the art will understand that various equivalent substitutions, modifications, or improvements can be made to the technical solutions and implementation methods of the present invention without departing from the spirit and scope of the present invention, and all such modifications and improvements fall within the scope of the present invention; the scope of protection of the present invention is determined by the appended claims.

Claims

1. A ring-shaped cooled accelerator neutron target device, characterized in that, The neutron target device consists of a target chamber shell (1), a cooling ring (2), a neutron target (3), a coolant circulation system (7), a coolant (8), and heat sinks (9); the neutron target (3) is a circular plate with a cross-section consistent with the target chamber shell (1). The neutron target (3) is vertically installed inside the target chamber shell (1). The front of the neutron target (3) faces the firing direction, and the back of the neutron target (3) is the side away from the firing direction. The back is exposed to the atmosphere. The cooling ring (2) is arranged around the neutron target (3) on the outside of the target chamber shell (1). The target chamber shell (1) has upper and lower heat sinks (9) in the vertical direction near the neutron target (3) of the cooling ring (2). The heat sinks (9) are located inside the cooling ring (2) and divide the cooling ring (2) into flow channels along the circumference of the neutron target (3). The inlet and outlet channels of the cooling ring (2) are connected to the coolant circulation system (7), and the coolant (8) circulates in the cooling ring (2) and the coolant circulation system (7).

2. The annular cooling accelerator neutron target device according to claim 1, characterized in that, A thermometer (4) is installed on the back, and a temperature controller (5) is connected to the thermometer (4) and the coolant circulation system via a data cable (6).

3. The annular cooling accelerator neutron target device according to claim 1, characterized in that, The target chamber shell (1), the cooling ring (2), and the heat sink (9) are an integral structure.

4. The annular cooling accelerator neutron target device according to claim 1, characterized in that, The target chamber shell (1), the cooling ring (2), and the heat sink (9) are made of aluminum alloy or other high thermal conductivity materials.

5. The annular cooling accelerator neutron target device according to claim 2, characterized in that, The temperature controller (5) transmits the neutron target temperature data measured by the thermometer (4) to the coolant circulation system (7), and the coolant circulation system (7) adjusts the flow rate of the coolant (8) to control the neutron target (3) below 200°C.

6. The annular cooling accelerator neutron target device according to claim 1, characterized in that, The flow rate of the coolant (8) is adjustable, and the number of heat sinks (9) is set to multiple.

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