Electron gun starting device for electron accelerator

Abstract

The utility model discloses an electron gun starting device for an electron accelerator. The heating pipe comprises a pipe body and a starting reinforcing assembly arranged on the surface of the pipe body, the starting reinforcing assembly comprises transverse blocks arranged on the four sides of the surface of the pipe body, an inner cavity is formed in each transverse block, the two sides of the interior of each inner cavity are detachably connected with a plurality of heating strips, and first screw holes are formed in the surfaces of the transverse blocks; the surface of the copper plate is aligned with the first screw holes formed in the four corners of the surface of the transverse block through the second screw holes formed in the four corners of the surface of the copper plate, the transverse block can be installed on the surface of the copper plate by screwing bolts in the second screw holes, the transverse block is used for installing a plurality of heating strips through the inner cavity formed in the transverse block, and the heating strips work in the inner cavity to release heat. And heat is guided into the position of the hot wire in the tank body through the copper plate, so that the pre-starting performance of the hot wire is improved, the copper plate has good thermal conductivity, and then the electronic gun starting device has a measure for preheating and pre-starting the whole body when in use.

Description

Technical Field

[0001] The utility model relates to the technical field of electron gun equipment, in particular to an electron gun starting device for an electron accelerator. Background Art

[0002] An electron gun is a device that generates, accelerates and converges high-energy-density electron beams. It emits electron beams with a certain energy, a certain beam current, speed and angle, also known as electron beams. Applications of electron guns include inelastic electron scattering and fluorescent screen luminescence. The ring gun has a simple structure, low cost, and can work with a simple power supply. The gun body consists of a ring filament, an anode, a cathode, a focusing coil and a deflection coil. The ring filament is under negative high voltage and is used as a thermal electron emission source. Under the directional reflection of the focusing electrode and the acceleration of the anode, the electron beam converges at the center of the crucible evaporation source. When the ring gun and the straight gun are in use, the high-energy electron beam bombards the material to emit secondary electrons.

[0003] The existing open patent (publication number CN2539282Y) discloses a novel electron gun, including a V-shaped stainless steel guide plate, a getter parallel to the guide plate is arranged on the lower side of the V-shaped stainless steel guide plate, and the getter is connected to the electron gun through a getter antenna. The utility model adds a getter guide plate on the upper side of the electron gun getter, and when the getter evaporates, due to the effect of the getter guide plate, the evaporation direction of the getter is changed, so that the barium atoms evaporate to the cone, and there is no barium film on the inner side of the shadow mask, thereby playing a role of potential compensation, realizing potential compensation for color purity drift, and achieving the purpose of improving the picture quality of the color tube.

[0004] However, there are some problems in the use of existing electron gun starting devices. The electron gun starting devices currently on the market lack a measure for preheating and pre-starting when in use, which reduces the overall starting speed and causes the overall starting efficiency to become low, which is not conducive to quick and convenient use. Utility Model Content

[0005] The purpose of the utility model is to provide an electron gun starting device for an electron accelerator to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: comprising a tube body and a start-up enhancement component arranged on the surface of the tube body;

[0007] The starting enhancement component includes a horizontal block arranged on the four sides of the tube body surface, the horizontal block has an inner cavity, and heating strips are detachably connected to both sides of the inner cavity. There are multiple heating strips, and a first screw hole is opened on the surface of the horizontal block, and the heating end inside the tube body is preheated by the heating strip.

[0008] Preferably, the starting enhancement component also includes a copper plate connected to the surface of the inner cavity, and second screw holes are opened at the four corners of the surface of the copper plate.

[0009] Preferably, the first screw hole and the second screw hole are aligned inside, and bolts are cooperatively connected inside the first screw hole and the second screw hole.

[0010] Preferably, mounting blocks are fixedly connected to both sides of the copper plate, and one end of the mounting block is cooperatively connected to the surface of the tube body.

[0011] Preferably, an anode is detachably connected to one end of the tube body, and an electron beam generator is detachably connected to the surface of the tube body.

[0012] Preferably, a bunching electrode is cooperatively connected inside the tube body, and a block cathode is detachably connected to one side of the tube body.

[0013] Preferably, a hot wire is detachably connected to the interior of the tube body, and an electron emitter is detachably connected to one end of the interior of the tube body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model: when in use, the copper plate is installed on the four sides of the outer side of the tube body through the mounting blocks detachably connected on both sides of the surface, and the copper plate is installed through the mounting blocks, and the surface of the copper plate is aligned with the first screw holes opened at the four corners of the surface of the cross block through the second screw holes opened at the four corners, and the cross block can be installed on the surface of the copper plate by tightening the bolts therein, and the cross block can be used to install multiple heating strips through the inner cavity opened inside, and when pre-starting, the power current output end of the heating strip can be connected through an external power supply, and the heating strip works inside the inner cavity to release heat, and introduces the heat into the position of the hot wire in the tank body through the copper plate, thereby increasing the pre-starting property of the hot wire, and the copper plate has good thermal conductivity, and then the electron gun starting device has a measure for preheating and pre-starting for the whole when in use, thereby improving the overall starting speed, resulting in a higher overall starting efficiency, which is conducive to quick and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the horizontal block of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the copper plate structure of an embodiment of the utility model.

[0019] In the figure: 1, tube body; 2, anode; 3, electron beam generator; 4, focusing electrode; 5, block cathode; 6, hot wire; 7, electron emitter; 801, cross block; 802, inner cavity; 803, heating strip; 804, first screw hole; 805, copper plate; 806, second screw hole; 807, bolt; 808, mounting block. DETAILED DESCRIPTION

[0020] In order to facilitate the problem to be solved, the embodiment of the utility model provides an electron gun starting device for an electron accelerator. The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figure 1-3 This embodiment provides a starting enhancement component including a tube body 1 and a starting enhancement component arranged on the surface of the tube body 1, the starting enhancement component includes a horizontal block 801 arranged on four sides of the surface of the tube body 1, an inner cavity 802 is opened inside the horizontal block 801, and heating strips 803 are detachably connected to both sides of the inner cavity 802. There are multiple heating strips 803, and a first screw hole 804 is opened on the surface of the horizontal block 801, and the heating end inside the tube body 1 is preheated by the heating strip 803.

[0023] In this embodiment, the starting enhancement component also includes a copper plate 805 that is connected to the surface of the inner cavity 802, and second screw holes 806 are opened at the four corners of the surface of the copper plate 805. The first screw hole 804 and the second screw hole 806 are aligned internally, and bolts 807 are connected to the first screw hole 804 and the second screw hole 806. Mounting blocks 808 are fixedly connected on both sides of the copper plate 805, and one end of the mounting block 808 is connected to the surface of the tube body 1.

[0024] Specifically, the copper plate 805 is connected to the surface of the tube body 1 through the mounting block 808, which increases the mountability of the cross block 801 and makes it easier to install it between the tube body 1. The copper plate 805 is installed on the outer wall surface where the hot wire 6 works, thereby playing a preheating function.

[0025] Furthermore, an anode 2 is detachably connected to one end of the tube body 1, an electron beam generator 3 is detachably connected to the surface of the tube body 1, a bunching electrode 4 is cooperatively connected to the inside of the tube body 1, a block cathode 5 is detachably connected to one side of the inside of the tube body 1, a hot wire 6 is detachably connected to the inside of the tube body 1, and an electron emitter 7 is detachably connected to one end of the inside of the tube body 1.

[0026] Specifically, after the electron beam is emitted, it is accelerated by the anode 2 and forms a certain beam waist behind the anode 2, and the diameter, position and beam intensity of the beam waist can be easily controlled. The essence of its control is to determine the required electromagnetic field on the predetermined electron beam path, and to apply a bombardment voltage of several hundred or even thousands of volts between the filament and the block cathode 5. Under this voltage, the electrons emitted from the heater bombard the cathode, so that the cathode is heated to a certain temperature and a large number of electrons are emitted from its surface.

[0027] When in use, the copper plate 805 is installed on the four outer sides of the tube body 1 through the mounting blocks 808 detachably connected on both sides of the surface. The copper plate 805 is installed through the mounting blocks 808. The surface of the copper plate 805 is aligned with the first screw holes 804 opened at the four corners of the surface of the cross block 801 through the second screw holes 806 opened at the four corners. The cross block 801 can be installed on the surface of the copper plate 805 by tightening the bolts 807 therein. The cross block 801 installs multiple heating strips 803 through the inner cavity 802 opened inside. When pre-starting, the power current output end of the heating strip 803 can be connected through an external power supply, and the heating strip 803 It works inside the inner cavity 802 to release heat, and introduces the heat to the position of the hot wire 6 in the tank through the copper plate 805, thereby increasing the pre-starting performance of the hot wire 6. The copper plate 805 has good thermal conductivity. The copper plate 805 is connected to the surface of the tube body 1 through the mounting block 808, which increases the mountability of the cross block 801 and makes it easy to install it between the tube body 1. The copper plate 805 is installed on the outer wall surface of the working position of the hot wire 6, thereby playing a pre-heating function. After the sub-beam is emitted, it is accelerated by the anode 2 and forms a certain beam waist behind the anode 2, and the diameter, position and beam intensity of the beam waist can be easily controlled. The essence of its control is to determine the required electromagnetic field on the predetermined electron beam path, by adding a bombardment voltage of several hundred or even thousands of volts between the filament and the block cathode 5. Under this voltage, the electrons emitted from the heater bombard the cathode, causing the cathode to be heated to a certain temperature and then emit a large number of electrons from its surface. Then, when the electron gun starting device is in use, it has a measure for preheating and pre-starting the whole, thereby improving the overall starting speed, resulting in higher overall starting efficiency, which is conducive to quick and convenient use.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electron gun starting device for an electron accelerator, characterized in that: It comprises a tube body (1) and a start-up enhancement component arranged on the surface of the tube body (1); The starting enhancement component comprises a horizontal block (801) arranged on four sides of the surface of the tube body (1), an inner cavity (802) is provided inside the horizontal block (801), heating strips (803) are detachably connected to both sides of the inner cavity (802), and there are multiple heating strips (803). A first screw hole (804) is provided on the surface of the horizontal block (801), and the internal heating end of the tube body (1) is preheated by the heating strips (803).

2. The electron gun starting device for an electron accelerator according to claim 1, characterized in that: The starting enhancement component also includes a copper plate (805) connected to the surface of the inner cavity (802), and second screw holes (806) are opened at four corners of the surface of the copper plate (805).

3. The electron gun starting device for an electron accelerator according to claim 2, characterized in that: The first screw hole (804) and the second screw hole (806) are aligned with each other, and bolts (807) are matched and connected inside the first screw hole (804) and the second screw hole (806).

4. The electron gun starting device for an electron accelerator according to claim 2, characterized in that: The copper plate (805) is fixedly connected to mounting blocks (808) on both sides, and one end of the mounting block (808) is cooperatively connected to the surface of the tube body (1).

5. The electron gun starting device for an electron accelerator according to claim 1, characterized in that: One end of the tube body (1) is detachably connected to an anode (2), and the surface of the tube body (1) is detachably connected to an electron beam generator (3).

6. The electron gun starting device for an electron accelerator according to claim 5, characterized in that: The tube body (1) is cooperatively connected with a bunching electrode (4) inside, and a block cathode (5) is detachably connected to one side inside the tube body (1).

7. The electron gun starting device for an electron accelerator according to claim 5, characterized in that: A hot wire (6) is detachably connected inside the tube body (1), and an electron emitter (7) is detachably connected inside one end of the tube body (1).

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