Multi-source ion lamp

Abstract

The utility model relates to the technical field of ion lamps, in particular to a multi-source ion lamp which comprises an ion lamp body, a first lamp body, a second lamp body and a photon light-transmitting assembly, the two sides of the ion lamp body are respectively provided with the first lamp body and the second lamp body, and the photon light-transmitting assembly is arranged above the ion lamp body. The photon light-transmitting assembly is used for filtering photons generated by the first lamp body and the second lamp body, so that the photons only pass through photons in a specific wavelength range. Compared with the prior art, by arranging the first lamp body and the second lamp body to be matched with the first air chamber and the second air chamber for use, proper photon energy can be flexibly selected in different application scenes, a wide ionization energy range is covered, and the adaptability and flexibility of equipment are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of ion lamps, in particular to a multi-source ion lamp. Background Art

[0002] In explosion-proof anti-terrorism and security inspection systems, the core technology commonly used in instruments and equipment for detecting explosives and drugs is the substance ion migration technology. For example, in an ion migration tube, the principle is to detect the running speed of substance ions, and identify the substance through the speed. In actual applications, the ion migration tube includes the following parts: ionization region, ion gate, migration region, and collection region, as Figure 1 shown:

[0003] Ionization region: Ionize explosive molecules by ultraviolet light irradiation. According to the atomic characteristics of substances, explosives are ionized into negative ions, and drugs are ionized into positive ions.

[0004] Ion gate: Ions in the ionization region pass through the ion gate to the migration region. The opening and closing of the ion gate control the moment and quantity of ions passing through.

[0005] Migration region: An external electric field is applied in the migration region, and ions move to the other side under the action of the electric field in the migration region.

[0006] Collection region: Ions move to the flange in the collection region. The flange absorbs charges and forms an electron current. The electron current is amplified and sent to the calculation unit, and combined with the control of the ion gate, the ion migration speed is calculated.

[0007] The ionization sources commonly used in ion migration tubes are VUV ultraviolet lamps and laser ionization sources, which belong to photoionization sources. Photons irradiate the object to be detected to ionize it. The wavelength of the photons is different for the ionization of different substances. In this way, we can effectively ionize specifically. The VUV ultraviolet lamp is a primary ionization source, which will not generate reaction ion peaks (interference peaks), and it works in the linear region and is not easy to saturate.

[0008] In the prior art, when the photons emitted by the photoionization source have an energy greater than the ionization energy of the object to be detected, the object to be detected is ionized, otherwise it will not be ionized. The ionization energy is the energy required for a substance to be ionized, which is fixed for a substance. And currently, usually only one kind of gas is filled inside the photoionization source. The commonly used gases are the following three:

[0009] The internal inert gas is xenon, with photon energies of 8.4 eV and 9.6 eV, and wavelengths of 147 nm and 129 nm;

[0010] The internal inert gas is krypton, with photon energies of 10.0 eV and 10.6 eV, and wavelengths of 124 nm and 117 nm;

[0011] The internal inert gas is argon, with photon energies of 11.6 eV and 11.8 eV, and wavelengths of 107 nm and 105 nm;

[0012] A single light source means that there is only one type of gas inside. For example, in a krypton ionization source, only substances with ionization energies less than 10.0 or 10.6 can be ionized. The greater the photon energy, the more types of substances can be ionized. However, it is not always better to choose a larger photon energy because although more types of substances can be ionized with a larger photon energy, it also includes substances (impurities) that we do not need, etc., and the ion composition becomes too complex. This is not conducive to the later analysis of ion peaks as there is too much interference. Therefore, the photon energy for making the ionization source is usually selected specifically. Summary of the Utility Model

[0013] In view of this, the purpose of the present utility model is to provide a multi-source ion lamp to solve the problems of inability to directionally ionize a certain required substance and being easily interfered by sundries.

[0014] Based on the above purpose, the present utility model provides a multi-source ion lamp, including an ion lamp body. On both sides of the ion lamp body, a first lamp body and a second lamp body are respectively arranged. On the upper and lower sides of the first lamp body and the second lamp body, a krypton source negative electrode and a krypton source positive electrode, and a xenon gas negative electrode and a xenon source positive electrode are respectively arranged. Above the krypton source negative electrode and the xenon gas negative electrode, a krypton source focusing column and a xenon source focusing column are respectively arranged. Both the krypton source focusing column and the xenon source focusing column penetrate through the bottom of the ion lamp body. At the tops of the krypton source positive electrode and the xenon source positive electrode, a first gas chamber and a second gas chamber are respectively fixedly installed. The interiors of the first gas chamber and the second gas chamber are respectively filled with a first inert gas and a second inert gas. The first gas chamber and the second gas chamber are both equipped with independent voltage control lines. The krypton source focusing column and the xenon source focusing column can respectively emit krypton source photons and xenon source photons;

[0015] A photon light-transmitting component, which is arranged above the ion lamp body and is used to filter the photons generated by the first lamp body and the second lamp body so that only photons within a specific wavelength range can pass through;

[0016] A control system, which is used to independently control the working states of the first lamp body and the second lamp body so that the first lamp body and the second lamp body emit photons with specific energies and wavelengths.

[0017] Preferably, the first inert gas is krypton and the second inert gas is xenon.

[0018] Preferably, an isolation glass is arranged between the first lamp body and the second lamp body for separation.

[0019] Preferably, the photon-transmissive component includes a first photon-transmissive glass and a second photon-transmissive glass. The first photon-transmissive glass is made of magnesium fluoride + calcium fluoride, and the second photon-transmissive glass is made of magnesium fluoride.

[0020] Preferably, the control system includes a gas path control module, an electric field control module, an ionization control module, an environmental parameter acquisition module, and a calculation and control center. The gas path control module is used to control the flow path of the gas after the sample is vaporized inside the device. The electric field control module is used to adjust the electric field strength and direction. The ionization control module is used to control the turning on and off of the ion lamp body. The environmental parameter acquisition module includes a temperature sampling device, a humidity sampling device, a pressure sampling device, and a level sampling device. The acquisition module is used to acquire environmental data. The calculation and control center is used to receive data from each module and perform calculations and analyses.

[0021] Preferably, the ionization control module can automatically select and control the turning on and off of the xenon gas source or the krypton gas source according to the ionization energy of the predetermined target substance.

[0022] Preferably, a third gas chamber can be added inside the ion lamp body, filled with the inert gas argon, and equipped with a third independent voltage control line and a corresponding photon-transmissive component. The photon-transmissive component of the third gas chamber uses lithium fluoride as the light-transmitting material.

[0023] Advantages of the present utility model:

[0024] 1. For this multi-source ion lamp, by setting the first lamp body and the second lamp body to cooperate with the first gas chamber and the second gas chamber for use, through the setting of the first lamp body, the second lamp body, and the cooperating first gas chamber and second gas chamber, the multi-source ion lamp can achieve precise control of photon energy and ionization effect. The first lamp body (krypton source lamp body) and the second lamp body (xenon source lamp body) each have independent photon emission capabilities. Krypton and xenon respectively generate photons with different energy levels, so as to adapt to the ionization requirements of different substances, ensure the precise matching of photon energy, maximize the ionization efficiency. The cooperating first gas chamber and second gas chamber are respectively filled with krypton and xenon. By controlling the turning on and off of the lamp body through independent voltage control lines, the suitable photon energy can be flexibly selected in different application scenarios, covering a wide range of ionization energies, enhancing the adaptability and flexibility of the device. At the same time, the setting of the isolation glass effectively prevents the mixing of inert gases, maintains the purity of the gas in each lamp body and the stability of photon emission, avoids interference caused by gas or temperature differences, and ensures the electrical safety and overall stability of the system.

[0025] 2. This multi-source ion lamp is equipped with a photon-transmissive component. The photon-transmissive component consists of a first photon-transmissive glass made of a combination of magnesium fluoride and calcium fluoride and a second photon-transmissive glass made of magnesium fluoride. This enables precise filtering and efficient transmission of the ultraviolet spectrum. The first photon-transmissive glass covers a wider ultraviolet spectrum range, effectively filtering out unwanted light waves and ensuring that only photons within a specific energy range can pass through, thereby improving the accuracy and sensitivity of detection. The second photon-transmissive glass, made of magnesium fluoride, has excellent transmittance in the deep ultraviolet band, maximizing the transmission efficiency of xenon-emitted ultraviolet photons and ensuring that high-energy ultraviolet rays can effectively reach the target substance, enhancing the ionization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Schematic diagram of the working principle of the ion migration tube;

[0028] Figure 2 Schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 3 Schematic diagram of the side view structure of the present invention;

[0030] Figure 4 Schematic diagram of the internal sectional structure of the present invention;

[0031] Figure 5 Schematic diagram of the top view of the present invention;

[0032] Figure 6 Schematic diagram of the working principle of the present invention;

[0033] Figure 7 Schematic diagram of the control system process of the present invention.

[0034] The labels in the figures are:

[0035] 1. Ion lamp body; 2. First lamp body; 3. Second lamp body; 4. Krypton source negative electrode; 5. Krypton source converging column; 6. Krypton source positive electrode; 7. First gas chamber; 8. First photon-transmissive glass; 9. Krypton source photons; 10. Xenon negative electrode; 11. Xenon source converging column; 12. Xenon source positive electrode; 13. Second gas chamber; 14. Second photon-transmissive glass; 15. Xenon source photons; 16. Isolation glass. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] To make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with specific embodiments.

[0037] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those with general skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0038] Embodiment 1: As Figures 2 to 7 shown, the multi-source ion lamp includes an ion lamp body 1. On both sides of the ion lamp body 1, a first lamp body 2 and a second lamp body 3 are respectively arranged. On the upper and lower sides of the first lamp body 2 and the second lamp body 3, a krypton source negative electrode 4 and a krypton source positive electrode 6, and a xenon negative electrode 10 and a xenon source positive electrode 12 are respectively arranged. Above the krypton source negative electrode 4 and the xenon negative electrode 10, a krypton source focusing column 5 and a xenon source focusing column 11 are respectively arranged. Both the krypton source focusing column 5 and the xenon source focusing column 11 penetrate through the bottom of the ion lamp body 1. At the tops of the krypton source positive electrode 6 and the xenon source positive electrode 12, a first gas chamber 7 and a second gas chamber 13 are respectively fixedly installed. The interiors of the first gas chamber 7 and the second gas chamber 13 are respectively filled with a first inert gas and a second inert gas. Both the first gas chamber 7 and the second gas chamber 13 are equipped with independent voltage control lines. The krypton source focusing column 5 and the xenon source focusing column 11 can respectively emit krypton source photons 9 and xenon source photons 15; a photon light-transmitting component, which is arranged above the ion lamp body 1 and is used to filter the photons generated by the first lamp body 2 and the second lamp body 3, so that only photons within a specific wavelength range can pass through; a control system, which is used to independently control the working states of the first lamp body 2 and the second lamp body 3, so that the first lamp body 2 and the second lamp body 3 emit photons with specific energies and wavelengths, wherein the first inert gas is krypton and the second inert gas is xenon;

[0039] During the working process of the multi-source ion lamp, first, the first lamp body 2 or the second lamp body 3 is activated through an independent voltage control line. According to the ionization energy requirement of the detection target, the krypton source or xenon source lamp body is selected to be turned on. Subsequently, the krypton source focusing column 5 or the xenon source focusing column 11 focuses and emits the corresponding photons, and the photon emission can be controlled as needed, that is, there are the following three modes:

[0040] I. There are two kinds of photon energies: photon energy of 8.4 eV (wavelength 147 nm), and photon energy of 9.6 eV (wavelength 129 nm);

[0041] II. There are two kinds of photon energies: photon energy of 10.0 eV (wavelength 124 nm), and photon energy of 10.6 eV (wavelength 117 nm);

[0042] III. There are four kinds of photon energies: photon energy of 8.4 eV (wavelength 147 nm), photon energy of 9.6 eV (wavelength 129 nm), photon energy of 10.0 eV (wavelength 124 nm), and photon energy of 10.6 eV (wavelength 117 nm);

[0043] These energy levels can cover substances with medium to high ionization energy requirements. In different modes, they can accurately match the ionization energy requirements of the target substance, thus ensuring that the substance can be fully ionized, improving the detection accuracy. By selecting suitable photon energies, the ionization efficiency can be maximized while avoiding unnecessary waste of photon energy, which is crucial for improving the detection sensitivity;

[0044] And these photons are filtered by the photon light-transmitting component. Only photons within a specific wavelength range can pass through and act on the sample to be detected. The substances in the sample are ionized under the action of photons with specific energies, and the generated ions are transmitted to the detection area and amplified and processed. Finally, the control system receives and analyzes these data to determine the nature and composition of the sample. At the same time, the control system can also adjust the working state of the lamp body in real time according to the collected environmental parameters such as temperature and humidity to ensure the best effect of the ionization process. Finally, the processed results will be output to the user through the display module or the network module. It includes two independent light-emitting units, the krypton gas source and the xenon gas source, which allows the device to emit photons with different energies and wavelengths according to different detection needs. The photons emitted by krypton gas have higher energy and are suitable for substances with high ionization energy, while the photons emitted by xenon gas have slightly lower energy and are suitable for substances with low ionization energy. This can improve the flexibility and accuracy of ionization. Through independent voltage control lines, the first lamp body 2 and the second lamp body 3 can be controlled separately, which means that the krypton gas source or the xenon gas source can be selected to be activated according to the detection needs, or even both can be activated simultaneously to cover a wider range of ionization energies. This independently controlled design improves the adaptability of the device and can achieve the best ionization effect in different application scenarios. The settings of the krypton source focusing column 5 and the xenon source focusing column 11 ensure the concentrated emission of photons, improving the ionization efficiency. The light-transmitting component further optimizes the wavelength of the photons, allowing only photons with specific wavelengths to pass through, thus avoiding unnecessary impurity interference and improving the detection accuracy.

[0045] Such as Figure 2 、Figure 4 , Figure 5 As shown in Figure 5 , an insulating glass 16 is provided between the first lamp body 2 and the second lamp body 3 at intervals;

[0046] The insulating glass 16 effectively separates the first lamp body 2 (krypton source lamp body) and the second lamp body 3 (xenon source lamp body), preventing the inert gases between the two from cross-mixing. This can ensure the gas purity in each lamp body, thereby guaranteeing the consistency and stability of the emission energy and wavelength of photons. Different gases may generate different amounts of heat during the ionization process. The insulating glass 16 can effectively isolate the thermal effects of the two lamp bodies, avoiding unstable photon energy or decreased emission efficiency caused by temperature differences. Moreover, the insulating glass 16 also plays a certain role in electrical insulation, avoiding voltage interference between the two lamp bodies, ensuring that each lamp body can be independently controlled, and enhancing the safety and stability of the entire system.

[0047] As Figure 2 , Figure 5 As shown in Figure 5 , the photon light-transmitting component includes a first photon light-transmitting glass 8 and a second photon light-transmitting glass 14. The first photon light-transmitting glass 8 is made of magnesium fluoride + calcium fluoride, and the xenon-source photon 15 is made of magnesium fluoride;

[0048] The first photon light-transmitting glass 8 is made of magnesium fluoride + calcium fluoride. The combined material of magnesium fluoride (MgF2) and calcium fluoride (CaF2) can cover a wider ultraviolet spectral range. This enables the first photon light-transmitting glass 8 to effectively filter out unwanted light waves, ensuring that only photons within a specific energy range can pass through, thereby improving the accuracy and sensitivity of detection. Moreover, both magnesium fluoride and calcium fluoride have extremely low absorption rates and high light transmittance, which can effectively reduce the loss of photon energy and ensure that the emitted photons can act on the sample to be detected with high efficiency. The second photon light-transmitting glass 14 is made of magnesium fluoride. Magnesium fluoride (MgF2) has excellent transmittance in the deep ultraviolet band (120 - 200 nanometers). Therefore, choosing magnesium fluoride as the light-transmitting material for the second photon light-transmitting glass 14 can maximize the transmission efficiency of the ultraviolet photons emitted by xenon gas, ensure that high-energy ultraviolet rays can effectively reach the target substance, thereby improving the ionization effect. Moreover, when high-energy photons pass through, magnesium fluoride can maintain extremely low optical distortion, ensuring that the transmission path of the photons will not shift, improving the directivity and ionization efficiency of the photons.

[0049] As Figure 7As shown in the figure, the control system includes a gas path control module, an electric field control module, an ionization control module, an environmental parameter acquisition module, and a calculation and control center. The gas path control module is used to control the flow path of the gas after the sample is vaporized inside the device. The electric field control module is used to adjust the electric field strength and direction. The ionization control module is used to control the on and off of the ion lamp body 1. The environmental parameter acquisition module includes a temperature sampling device, a humidity sampling device, a barometric pressure sampling device, and a level sampling device. The acquisition module is used to acquire environmental data. The calculation and control center is used to receive data from each module, perform calculations and analyses. The ionization control module can automatically select and control the on and off of the xenon gas source or krypton gas source according to the ionization energy of the predetermined target substance;

[0050] The gas path control module precisely controls the flow path of the gas after the sample is vaporized, enabling the sample to smoothly enter the ionization region of the ion lamp. Next, the electric field control module adjusts the strength and direction of the electric field in real time to ensure that the ions reach the detector along the set trajectory during migration. At the same time, the ionization control module automatically selects and controls the on and off of the xenon gas source or krypton gas source according to the ionization energy of the target substance set by the calculation and control center, so as to perform ionization under the best conditions. During the whole process, the environmental parameter acquisition module continuously monitors and acquires environmental data such as temperature, humidity, barometric pressure, and level, and transmits them to the calculation and control center. The calculation and control center analyzes these data and dynamically adjusts the operations of the gas path control module, the electric field control module, and the ionization control module according to the analysis results to ensure that the device maintains a stable working state under various environmental conditions. Finally, accurate detection of the sample is achieved and the results are output.

[0051] Embodiment 2: A third gas chamber can be added inside the ion lamp body 1, filled with the inert gas argon, and equipped with a third independent voltage control line and a corresponding photon light-transmitting component. The photon light-transmitting component of the third gas chamber uses lithium fluoride as the light-transmitting material;

[0052] Based on the above references, the ion lamp body 1 can be extended by adding gas chambers accordingly. For example, a third gas chamber can be added and filled with argon gas, and lithium fluoride can be used as the light-transmitting material, which enhances the ionization ability and spectral range of the device. Through more efficient photon transmission and precise voltage control, the accuracy and reliability of the overall detection are improved. In addition, such a setting expands the application scenarios of the device, enabling it to meet more diversified detection requirements, and improves the flexibility and adaptability of the system. Among them, argon gas is used as the third gas source: Argon is a commonly used inert gas with a relatively low ionization energy (about 15.76 eV), so it can generate photons with higher wavelengths, which complements the spectral ranges generated by krypton and xenon. By introducing an argon gas source, the spectral range of the ion lamp can be further expanded, enabling it to adapt to the ionization requirements of more types of substances, especially some substances with medium ionization energy, which provides greater support for the versatility of the device and enables it to be applied to more different detection scenarios. And lithium fluoride (LiF) has a very wide ultraviolet spectral transmission range, especially with extremely high transmittance in the vacuum ultraviolet band (100 - 200 nm). Therefore, choosing lithium fluoride as the photon-transmitting component material for the third gas chamber can minimize the energy loss of photons when passing through the light-transmitting component, ensuring that the photons emitted by the argon gas source can act on the target substance efficiently. The use of this material optimizes the photon transmission path and reduces possible optical distortion and diffraction effects, thereby improving the directivity of photons and the overall ionization efficiency.

[0053] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0054] The present invention aims to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-source ion lamp, characterized in that, Comprising: An ion lamp body (1), on both sides of the ion lamp body (1), a first lamp body (2) and a second lamp body (3) are respectively arranged. On the upper and lower sides of the first lamp body (2) and the second lamp body (3), a krypton source negative electrode (4) and a krypton source positive electrode (6), and a xenon gas negative electrode (10) and a xenon source positive electrode (12) are respectively arranged. Above the krypton source negative electrode (4) and the xenon gas negative electrode (10), a krypton source focusing column (5) and a xenon source focusing column (11) are respectively arranged. The krypton source focusing column (5) and the xenon source focusing column (11) both penetrate through the bottom of the ion lamp body (1). At the tops of the krypton source positive electrode (6) and the xenon source positive electrode (12), a first gas chamber (7) and a second gas chamber (13) are respectively fixedly installed. The interiors of the first gas chamber (7) and the second gas chamber (13) are respectively filled with a first inert gas and a second inert gas. The first gas chamber (7) and the second gas chamber (13) are both equipped with independent voltage control lines. The krypton source focusing column (5) and the xenon source focusing column (11) can respectively emit krypton source photons (9) and xenon source photons (15); A photon light-transmitting component, which is arranged above the ion lamp body (1), and is used for filtering the photons generated by the first lamp body (2) and the second lamp body (3) so that only photons within a specific wavelength range can pass through; A control system, which is used for independently controlling the working states of the first lamp body (2) and the second lamp body (3) so that the first lamp body (2) and the second lamp body (3) emit photons with specific energy and wavelength.

2. The multi-source ion lamp according to claim 1, wherein The first inert gas is krypton gas, and the second inert gas is xenon gas.

3. The multi-source ion lamp according to claim 1, wherein A separation glass (16) is arranged between the first lamp body (2) and the second lamp body (3).

4. The multi-source ion lamp according to claim 1, characterized in that, The photon light-transmitting component includes a first photon light-transmitting glass (8) and a second photon light-transmitting glass (14). The first photon light-transmitting glass (8) is made of magnesium fluoride + calcium fluoride, and the second photon light-transmitting glass (14) is made of magnesium fluoride.

5. The multi-source ion lamp according to claim 1, characterized in that, The control system includes a gas path control module, an electric field control module, an ionization control module, an environmental parameter acquisition module, and a calculation control center. The gas path control module is used for controlling the flow path of the gas after the sample is vaporized inside the device. The electric field control module is used for adjusting the electric field strength and direction. The ionization control module is used for controlling the opening and closing of the ion lamp body (1). The environmental parameter acquisition module includes a temperature sampling device, a humidity sampling device, a pressure sampling device, and a level sampling device. The acquisition module is used for acquiring environmental data. The calculation control center is used for receiving data from each module, and performing calculations and analyses.

6. The multi-source ion lamp according to claim 5, wherein The ionization control module can automatically select and control the opening and closing of the xenon gas source or the krypton gas source according to the ionization energy of a predetermined target substance.

7. The multi-source ion lamp according to claim 1, characterized in that, A third gas chamber can be added inside the ion lamp body (1), filled with the inert gas argon, and equipped with a third independent voltage control line and a corresponding photon light-transmitting component. The photon light-transmitting component of the third gas chamber uses lithium fluoride as the light-transmitting material.

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