Ionization source device and hydrogen atomic clock

Abstract

The present invention relates to the field of ionization technology, and discloses an ionization source device and a hydrogen atomic clock. The ionization source device includes an ionization cell, a resonant cavity assembly, and a magnetic field generating member. An input port and an output port are provided on the ionization cell. The resonant cavity assembly includes a resonant cavity body, a flange cover, and a microwave introducing member. The microwave introducing member is disposed on the flange cover, and the flange cover is covered on the resonant cavity body to form a resonant cavity. The ionization cell is located in the resonant cavity and abuts against the flange cover. The microwave introducing member is inserted into the resonant cavity and is located inside or outside the ionization cell, and the microwave introducing member is used to introduce microwaves into the resonant cavity or the ionization cell. The magnetic field generating member is disposed outside the resonant cavity body, and the magnetic field generating member is used to generate a magnetic field to act together with the microwaves to ionize hydrogen gas in the ionization cell into hydrogen plasma. The structure of the resonant cavity assembly and the ionization cell of the ionization source device is simplified, so as to reduce the structural assembly complexity of the ionization source device, reduce the energy coupling loss, and improve the preparation efficiency of hydrogen atoms.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen ionization, and particularly to an ionization source device and a hydrogen atomic clock. Background Art

[0002] At present, the preparation of effective hydrogen atoms in a hydrogen atomic clock is limited to radio frequency capacitive coupling or capacitive coupling discharge. The radio frequency power is coupled from the outside to the source through two electrodes or a coil. When hydrogen gas is introduced into the ionization cell and the ionization source device is powered on, the electrons already present in the source oscillate in the radio frequency field. During the oscillation process, the electrons collide with hydrogen molecules to generate atoms, ions and other electrons, and the new electrons participate in the collision in turn, thus maintaining the plasma discharge. The traditional ionization source device is usually of a split design, that is, the quartz ionization cell and the radio frequency microwave source cavity are separated and assembled, which results in complex assembly of the ionization source device, large energy coupling loss, and affects the preparation efficiency of hydrogen atoms.

[0003] Therefore, there is an urgent need for an ionization source device and a hydrogen atomic clock to solve the above problems. Summary of the Invention

[0004] An object of the present invention is to provide an ionization source device, which can simplify the complexity of the assembly structure of the ionization source device, not only helps to realize the miniaturized design of the ionization source device, but also can reduce the energy coupling loss and improve the preparation efficiency of hydrogen atoms.

[0005] With the above concept, the technical solution adopted by the present invention is as follows:

[0006] Provide an ionization source device, comprising:

[0007] An ionization cell, on which an input port and an output port are provided. The input port is used to input hydrogen gas into the ionization cell, and the output port is used to output the hydrogen plasma in the ionization cell;

[0008] A resonant cavity assembly, including a resonant cavity body, a flange cover and a microwave introduction member. The microwave introduction member is arranged on the flange cover, and the flange cover is covered on the resonant cavity body to form a resonant cavity. The ionization cell is located in the resonant cavity and abuts against the flange cover. The microwave introduction member is inserted into the resonant cavity and is located inside or outside the ionization cell. The microwave introduction member is used to introduce microwave into the resonant cavity or into the ionization cell;

[0009] A magnetic field generating member, arranged outside the resonant cavity body. The magnetic field generating member is used to generate a magnetic field to act together with the microwave to ionize the hydrogen gas in the ionization cell into hydrogen plasma.

[0010] Optionally, the outer wall of the ionization bubble has a recessed insertion groove extending along the thickness direction of the flange cover, and the magnetron of the microwave introduction member is inserted into the insertion groove and located outside the ionization bubble.

[0011] Optionally, at least two insertion grooves are provided. The magnetron includes a positive electrode and a negative electrode. The positive electrode is insulated and connected to the flange cover, the positive electrode is inserted into one of the insertion grooves, and the negative electrode is inserted into the other insertion groove.

[0012] Optionally, the resonant cavity assembly further includes a base. The resonant cavity is detachably connected to the base. The ionization bubble is clamped between the resonant cavity and the base. An inlet and an outlet are provided on the base. The inlet is communicated with the input port, and the outlet is communicated with the output port.

[0013] The resonant cavity assembly further includes a first sealing ring and a second sealing ring. The base presses against the first sealing ring and is arranged around the outer periphery of the input port, and the base presses against the second sealing ring and is arranged around the outer periphery of the output port.

[0014] Optionally, the resonant cavity and the flange cover are hermetically connected. PTFE coatings are provided on the inner walls of the resonant cavity and the flange cover to form the ionization bubble. The microwave introduction member is inserted into the resonant cavity and located inside the ionization bubble.

[0015] Optionally, the resonant cavity assembly further includes a third sealing ring. The resonant cavity has an opening, a stepped surface is provided at the opening, the flange cover is arranged on the stepped surface, and the third sealing ring is clamped between the stepped surface and the flange cover.

[0016] Optionally, the resonant cavity assembly further includes a base, the base is integrally provided with the resonant cavity, and the input port and the output port are provided on the base.

[0017] Optionally, the magnetic field generating member is an annular permanent magnet, and the annular permanent magnet is sleeved on the outer periphery of the resonant cavity.

[0018] Optionally, the intensity of the magnetic field is 875 Gs, and the frequency of the microwave is 2.45 GHz.

[0019] Another object of the present invention is to provide a hydrogen atomic clock, the assembly structure of the ionization source device thereof has a high degree of simplification, which helps to realize the miniaturized design of the ionization source device, can also reduce the energy coupling loss, and improve the preparation efficiency of hydrogen atoms.

[0020] Based on the above concept, the technical solution adopted by the present invention is as follows:

[0021] Provided is a hydrogen atomic clock, including the ionization source device described above.

[0022] The beneficial effects of the present invention are as follows:

[0023] The ionization source device proposed by the present invention includes an ionization cell, a resonant cavity assembly, and a magnetic field generating component. An input port and an output port are provided on the ionization cell. The input port is used to input hydrogen gas into the ionization cell, and the output port is used to output the hydrogen plasma in the ionization cell. The resonant cavity assembly includes a resonant cavity body, a flange cover, and a microwave introduction component. The microwave introduction component is provided on the flange cover, and the flange cover is covered on the resonant cavity body to form a resonant cavity. The ionization cell is located in the resonant cavity and abuts against the flange cover. The microwave introduction component is inserted into the resonant cavity and is located inside or outside the ionization cell. The microwave introduction component is used to introduce microwaves into the resonant cavity or the ionization cell. The magnetic field generating component is provided outside the resonant cavity body, and the magnetic field generating component is used to generate a magnetic field. The magnetic field and the microwaves act together to ionize the hydrogen gas in the ionization cell into hydrogen plasma. The ionization source device enables the electrons in the ionization cell to obtain initial energy through the magnetic field of the magnetic field generating component, and further enhances the electron cyclotron resonance by using the microwave magnetic field, so that the electrons in the ionization cell continuously absorb microwave energy, thereby enabling the hydrogen gas input into the ionization cell to be ionized into hydrogen plasma, which can improve the ionization efficiency of hydrogen gas. The ionization source device simplifies the structures of the resonant cavity assembly and the ionization cell, thereby reducing the structural assembly complexity of the ionization source device, contributing to the realization of the miniaturized design of the ionization source device, and also reducing the energy coupling loss and improving the preparation efficiency of hydrogen atoms.

[0024] The hydrogen atomic clock proposed by the present invention includes the ionization source device described above. As one of the key components of the hydrogen atomic clock, the ionization source device can ionize hydrogen molecules into hydrogen atoms to provide necessary hydrogen atoms for the normal operation of the hydrogen atomic clock. The ionization source device of the hydrogen atomic clock has a high degree of structural simplification, which contributes to the realization of the miniaturized design of the ionization source device, and also reduces the energy coupling loss and improves the preparation efficiency of hydrogen atoms. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of an ionization source device provided in Embodiment 1 of the present invention;

[0026] Figure 2 is a schematic structural diagram of another ionization source device provided in Embodiment 2 of the present invention.

[0027] In the figure:

[0028] 1. Ionization cell; 11. Input port; 12. Output port; 13. Insertion groove;

[0029] 2. Resonator assembly; 21. Resonator cavity; 22. Flange cover; 221. Insulating layer; 23. Base; 231. Inlet; 232. Outlet; 24. Microwave inlet component; 25. Coating; 26. First sealing ring; 27. Second sealing ring; 28. Third sealing ring;

[0030] 3. Magnetic field generating component; 4. SMA interface. Detailed implementation manners

[0031] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0032] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0034] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0035] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners.

[0036] This embodiment provides an ionization source device, which includes an ionization cell 1, a resonant cavity assembly 2, and a magnetic field generating component 3. An input port 11 and an output port 12 are provided on the ionization cell 1. The input port 11 is used to input hydrogen gas into the ionization cell 1, and the output port 12 is used to output the hydrogen plasma in the ionization cell 1. The resonant cavity assembly 2 includes a resonant cavity body 21, a flange cover 22, and a microwave introduction component 24. The microwave introduction component 24 is provided on the flange cover 22, and the flange cover 22 covers the resonant cavity body 21 to form a resonant cavity. The ionization cell 1 is located in the resonant cavity and abuts against the flange cover 22. The microwave introduction component 24 is inserted into the resonant cavity and is located inside or outside the ionization cell 1. The microwave introduction component 24 is used to introduce microwaves into the resonant cavity or into the ionization cell 1. The magnetic field generating component 3 is provided outside the resonant cavity body 21. The magnetic field generating component 3 is used to generate a magnetic field. The magnetic field and the microwaves act together to ionize the hydrogen gas in the ionization cell 1 into hydrogen plasma. In this ionization source device, the magnetic field of the magnetic field generating component 3 enables the electrons in the ionization cell 1 to obtain initial energy, and further uses the microwave magnetic field to enhance electron cyclotron resonance, so that the electrons in the ionization cell 1 continuously absorb microwave energy, thereby enabling the hydrogen gas input into the ionization cell 1 to be ionized into hydrogen plasma, which can improve the ionization efficiency of hydrogen gas. This ionization source device simplifies the structures of the resonant cavity assembly 2 and the ionization cell 1, thereby reducing the structural assembly complexity of the ionization source device, facilitating the realization of the miniaturized design of the ionization source device, reducing energy coupling loss, and improving the preparation efficiency of hydrogen atoms.

[0037] Embodiment 1

[0038] As Figure 1 shown, the specific structure of the ionization source device provided in this embodiment is that the outer wall of the ionization cell 1 has an inserted groove 13 recessed therein. The inserted groove 13 extends along the thickness direction of the flange cover 22. The magnetron of the microwave introduction component 24 is inserted into the inserted groove 13 and is located outside the ionization cell 1. In this embodiment, the inserted groove 13 is arranged to be recessed towards the inner cavity of the ionization cell 1, so that a space for accommodating the magnetron can be formed at the center of the ionization cell 1, and the flange cover 22 can also abut against the top of the ionization cell 1. By reducing the space for accommodating the ionization cell 1 and the magnetron in the resonant cavity, it is convenient to realize the miniaturized design of the ionization source device.

[0039] Optionally, at least two insertion slots 13 are provided. The magnetron includes a positive electrode and a negative electrode. The positive electrode is insulated and connected to the flange cover 22. The positive electrode is inserted into one insertion slot 13, and the negative electrode is inserted into another insertion slot 13. In specific implementation, at least two through mounting holes are provided on the flange cover 22. The positive electrode is inserted into one mounting hole, and an insulating layer 221 is provided between the positive electrode and the inner wall of the mounting hole to ensure the insulated connection between the positive electrode and the flange cover 22. The negative electrode is inserted into another mounting hole, and the negative electrode is non-insulatedly connected to the flange cover 22. In specific implementation, an SMA interface 4 is further provided on the flange cover 22. The magnetron is connected to the SMA interface 4. The SMA interface 4 is widely used in coaxial connections in the radio frequency and microwave fields and has characteristics such as small size, stable performance, and wide frequency range, making it suitable for the transmission of radio frequency signals.

[0040] In other embodiments, the positive electrode and the negative electrode may also be located in the same insertion slot 13, and there is a certain distance between the positive electrode and the negative electrode. The distance between the positive electrode and the negative electrode provides the necessary space for the movement of electrons.

[0041] Optionally, the resonant cavity assembly 2 further includes a base 23. The resonant cavity body 21 is detachably connected to the base 23. The ionization cell 1 is clamped between the resonant cavity body 21 and the base 23. An inlet 231 and an outlet 232 are provided on the base 23. The inlet 231 is communicated with the input port 11, and the outlet 232 is communicated with the output port 12. The resonant cavity assembly 2 further includes a first sealing ring 26 and a second sealing ring 27. The base 23 presses against the first sealing ring 26 and is arranged around the outer periphery of the input port 11, and the base 23 presses against the second sealing ring 27 and is arranged around the outer periphery of the output port 12. In specific implementation, the opening at the upper end of the resonant cavity body 21 is connected to the flange cover 22, and the lower end of the resonant cavity body 21 is connected to the base 23, so that the ionization cell 1 can be fixed in the middle. The resonant cavity body 21 includes a resonant cavity main body and a first convex ring arranged on the outer periphery of the resonant cavity main body. The ionization cell 1 includes an ionization cell main body and a second convex ring arranged on the outer periphery of the ionization cell main body. The first convex ring is connected to the base 23 through a fastener, and the second convex ring is clamped between the first convex ring and the base 23, so as to realize the fixation of the ionization cell 1 by the resonant cavity assembly 2. Both the resonant cavity body 21 and the base 23 are made of aluminum alloy structure. If the clamping force applied to the second convex ring during their connection is too large, it is easy to damage the ionization cell 1, and if the clamping force applied to the second convex ring during their connection is too small, it is easy to generate a gap between the ionization cell 1 and the base 23. Therefore, a first sealing ring 26 is arranged around the outer periphery of the input port 11, and a second sealing ring 27 is arranged around the outer periphery of the output port 12. The input port 11 and the inlet 231 are coaxially arranged in the vertical direction, and the output port 12 and the outlet 232 are coaxially arranged in the vertical direction. The second sealing ring 27 is sleeved on the outer periphery of the first sealing ring 26. After the base 23 is fixedly connected to the resonant cavity body 21, the first sealing ring 26 will be squeezed and fixed by the base 23 on the outer peripheries of the input port 11 and the inlet 231 to ensure the communication between the input port 11 and the inlet 231. The second sealing ring 27 will be squeezed and fixed by the base 23 on the outer peripheries of the output port 12 and the outlet 232 to ensure the communication between the output port 12 and the outlet 232.

[0042] Optionally, the magnetic field generating member 3 is an annular permanent magnet, and the annular permanent magnet is sleeved on the outer periphery of the resonant cavity body 21. In this embodiment, two annular permanent magnets are provided, and the magnetic poles of the two annular permanent magnets are the same. An insulator is arranged between the two annular permanent magnets to make there be a gap between the two annular permanent magnets to form a magnetic mirror.

[0043] In this embodiment, the annular permanent magnet is made of neodymium iron boron material.

[0044] In this embodiment, the intensity of the magnetic field is 875 Gs, and the frequency of the microwave is 2.45 GHz, so as to ensure that the Larmor frequency of the electrons matches the microwave frequency and still maintain efficient discharge in a low-pressure environment.

[0045] Embodiment Two

[0046] The difference between the ionization source device provided in this embodiment and the ionization source device provided in Embodiment 1 lies in that:

[0047] As Figure 2 shown, the microwave introduction member 24 of the ionization source device in this embodiment is directly inserted into the ionization cell 1. The specific structure is that a polytetrafluoroethylene material coating 25 is provided on the inner wall of the resonant cavity 21 and the inner wall of the flange cover 22, so that the cavity formed by the combination of the resonant cavity 21 and the flange cover 22 is both a resonant cavity and the inner cavity of the ionization cell 1. The ionization source device provided in this embodiment forms an ionization space for hydrogen ionization through the polytetrafluoroethylene material coating 25 coated in the resonant cavity, and the component of the ionization cell 1 can be completely omitted. To ensure the sealing of the ionization space, the resonant cavity 21 and the flange cover 22 need to be hermetically connected to avoid hydrogen leakage.

[0048] The structure of the microwave introduction member 24 in this embodiment is the same as that of the microwave introduction member 24 in Embodiment 1. The microwave introduction member 24 is generally made of pure copper and is silver-plated or gold-plated. The polytetrafluoroethylene material can prevent the generated plasma from contacting the metal surface and undergoing reverse recombination into hydrogen molecules. Since the microwave introduction member 24 outputs electromagnetic field microwave energy inside the ionization cell 1, the hydrogen gas near the microwave introduction member 24 is more likely to be ionized. Secondly, the surface area of the microwave introduction member 24 located inside the ionization cell 1 is small, that is, the contact with hydrogen gas is limited. Therefore, even if the surface of the microwave introduction member 24 is not coated with polytetrafluoroethylene material, its reverse effect on the plasma is limited.

[0049] Optionally, the resonant cavity assembly 2 further includes a third sealing ring 28. The resonant cavity 21 has an opening, and a stepped surface is provided at the opening. The flange cover 22 is arranged on the stepped surface, and the third sealing ring 28 is clamped between the stepped surface and the flange cover 22. During specific implementation, the stepped surface is annular, and the flange cover 22 is arranged on the stepped surface to define the assembly position of the flange cover 22 on the resonant cavity 21. Matching thread structures are provided on the outer periphery of the flange cover 22 and the inner wall of the opening, and the flange cover 22 is fixed at the opening through threaded connection. The third sealing ring 28 is arranged on the stepped surface. As the flange cover 22 rotates at the opening, the flange cover 22 continuously moves toward the stepped surface side until the third sealing ring 28 is clamped between the flange cover 22 and the stepped surface, thereby ensuring the sealing of the ionization space.

[0050] In other embodiments, sealant can also be provided at the opening of the resonant cavity 21 to ensure that when the flange cover 22 covers the opening of the resonant cavity 21, the gap between the flange cover 22 and the resonant cavity 21 is sealed with the sealant, thereby ensuring the sealing of the ionization space.

[0051] Optionally, the resonant cavity assembly 2 further includes a base 23, which is integrally provided with the resonant cavity. An input port 11 and an output port 12 are provided on the base 23. In this embodiment, the input port 11 and the inlet 231 are the same, and the output port 12 and the outlet 232 are also the same. On this basis, there is no need to consider the sealed connection between the input port 11 and the inlet 231, and the sealed connection between the output port 12 and the outlet 232, and the structure is simpler.

[0052] In addition, the ionization source device provided in this embodiment has the same structure as the ionization source device in the first embodiment, and will not be described in detail here.

[0053] Embodiment 3

[0054] This embodiment also provides a hydrogen atomic clock, which includes the ionization source device in the first embodiment or the second embodiment. As one of the key components of the hydrogen atomic clock, the ionization source device can ionize hydrogen molecules into hydrogen atoms to provide the necessary hydrogen atoms for the normal operation of the hydrogen atomic clock. The ionization source device of this hydrogen atomic clock has a high degree of simplification in the assembly structure, which helps to realize the miniaturized design of the ionization source device, can also reduce the energy coupling loss, and improve the preparation efficiency of hydrogen atoms.

[0055] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Ionization source device, characterized in that, Comprising: An ionization cell (1), an input port (11) and an output port (12) are arranged on the ionization cell (1), the input port (11) is used for inputting hydrogen into the ionization cell (1), and the output port (12) is used for outputting the hydrogen plasma in the ionization cell (1); A resonant cavity assembly (2), including a resonant cavity body (21), a flange cover (22) and a microwave introduction member (24), the microwave introduction member (24) is arranged on the flange cover (22), the flange cover (22) covers the resonant cavity body (21) to form a resonant cavity, the ionization cell (1) is located in the resonant cavity and abuts against the flange cover (22), the microwave introduction member (24) is inserted into the resonant cavity and is located inside or outside the ionization cell (1), and the microwave introduction member (24) is used for introducing microwave into the resonant cavity or into the ionization cell (1); A magnetic field generating member (3), arranged outside the resonant cavity body (21), the magnetic field generating member (3) is used for generating a magnetic field to act together with the microwave to ionize the hydrogen in the ionization cell (1) into hydrogen plasma.

2. The ionization source device according to claim 1, wherein, The outer wall of the ionization cell (1) has an inserted groove (13) recessed therein, the inserted groove (13) extends along the thickness direction of the flange cover (22), and the magnetron of the microwave introduction member (24) is inserted into the inserted groove (13) and is located outside the ionization cell (1).

3. The ionization source device according to claim 2, wherein, At least two inserted grooves (13) are provided, the magnetron includes a positive electrode and a negative electrode, the positive electrode is insulated and connected to the flange cover (22), the positive electrode is inserted into one of the inserted grooves (13), and the negative electrode is inserted into the other inserted groove (13).

4. The ionization source device according to claim 2, characterized in that, The resonant cavity assembly (2) further includes a base (23), the resonant cavity body (21) is detachably connected to the base (23), the ionization cell (1) is clamped between the resonant cavity body (21) and the base (23), an inlet (231) and an outlet (232) are arranged on the base (23), the inlet (231) is communicated with the input port (11), and the outlet (232) is communicated with the output port (12); The resonant cavity assembly (2) further includes a first sealing ring (26) and a second sealing ring (27), the base (23) presses against the first sealing ring (26) and is arranged around the outer periphery of the input port (11), and the base (23) presses against the second sealing ring (27) and is arranged around the outer periphery of the output port (12).

5. The ionization source device according to claim 1, characterized in that, The resonant cavity body (21) and the flange cover (22) are hermetically connected, a polytetrafluoroethylene coating (25) is arranged on the inner wall of the resonant cavity body (21) and the inner wall of the flange cover (22) to form the ionization cell (1), and the microwave introduction member (24) is inserted into the resonant cavity and is located inside the ionization cell (1).

6. The ionization source device according to claim 5, characterized in that, The resonant cavity assembly (2) further includes a third sealing ring (28). The resonant cavity body (21) has an opening, and a stepped surface is provided at the opening. The flange cover (22) is arranged on the stepped surface, and the third sealing ring (28) is clamped between the stepped surface and the flange cover (22).

7. The ionization source device according to claim 1, wherein, The resonant cavity assembly (2) further includes a base (23). The base (23) is integrally provided with the resonant cavity body (21), and the input port (11) and the output port (12) are arranged on the base (23).

8. The ionization source device according to claim 1, characterized in that, The magnetic field generating member (3) is an annular permanent magnet, and the annular permanent magnet is sleeved on the outer periphery of the resonant cavity body (21).

9. The ionization source device according to claim 1, characterized in that, The intensity of the magnetic field is 875 Gs, and the frequency of the microwave is 2.45 GHz.

10. Hydrogen atomic clock, characterized in that, It includes the ionization source device according to any one of claims 1 to 9.

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