CN114405272A - One-chamber multi-source separation placing structure of isotope electromagnetic separator - Google Patents

Abstract

The embodiment of the application provides a structure is placed in separation of a room multisource of isotope electromagnetic separator, relates to isotope electromagnetic separation technical field for solve the problem that a plurality of ion sources of isotope electromagnetic separator are punctured easily. The utility model provides a room multisource separation of isotope electromagnetic separator places structure, includes vacuum chamber, ion source, drive field and receiver that this application embodiment provided. The number of the ion sources is multiple, and the ion sources are used for emitting ions into the vacuum chamber; the driving field is used for driving ions emitted by the ion source to move in an accelerating way and deflect in the vacuum chamber; the number of the receivers is consistent with that of the ion sources, each receiver is arranged on a path of the ions emitted by the corresponding ion source after accelerated movement and deflection so as to receive multiple isotopes of the ions emitted by the corresponding ion source, and the movement paths of the ions emitted by the multiple ion sources are not interfered with each other. The embodiment of the application provides a room multi-source separation placing structure of an isotope electromagnetic separator, which is used for separating isotopes.

Description

One-chamber multi-source separation placing structure of isotope electromagnetic separator

Technical Field

The application relates to the technical field of isotope electromagnetic separation, in particular to a multi-source separation placing structure of an isotope electromagnetic separator.

Background

Stable isotopes are isotopes in which radioactive decay does not occur or is very unlikely to occur, e.g. stable isotopes¹⁷¹Yb、¹⁷⁶Yb、⁸⁷Sr、⁸⁸Sr、³⁹K、⁸⁵Rb and⁸⁷rb and the like have been widely applied in a plurality of technical fields such as military industry, quantum technology, nuclear power engineering, basic science, nuclear medicine and the like. The acquisition of high-abundance stable isotopes needs an isotope separation technology for support, and an isotope electromagnetic separation technology is a relatively common isotope separation technology, and is mainly used for separating isotopes by using an ion source, an electric field, a magnetic field, a receiver and the like. Specifically, the ion source is used for emitting multiple isotope ions of one element, and the multiple isotope ions enter the magnetic field to perform deflection motion after being accelerated by the electric field and are finally received by the receiver. The isotope ions have the same kinetic energy after being accelerated by the electric field, and do circular motion under the influence of Lorentz force after entering the magnetic field, the isotope with larger mass has large motion radius, the isotope with smaller mass has small motion radius, and different isotopes have different motion trails in the magnetic field, so that the separation of the isotopes is realized.

The isotope electromagnetic separation technology has the advantages of good universality, high separation coefficient and the like, but has the defects of low productivity, high cost and difficulty in meeting the use requirements of a plurality of technical fields on stable isotopes. In view of this problem, the related art discloses an isotope electromagnetic separator that is provided with a plurality of ion sources and a plurality of receivers, and ions emitted from the plurality of ion sources are deflected in the same magnetic field and received by the corresponding receivers, respectively. Therefore, compared with the condition that the number of the ion sources and the number of the receivers are both one, the utilization rate of the magnetic field is higher, so that the capacity of the isotope electromagnetic separator is higher, the number of the ion sources is several, and the capacity can be improved by several times.

However, the ion source is a device that operates at high temperature and high pressure, and although it is possible to improve productivity by emitting ions to the same magnetic field by a plurality of ion sources, it also causes a problem in terms of insulation, and if a plurality of ion sources break down each other, production cannot be performed.

Disclosure of Invention

In view of this, the embodiments of the present application provide a one-chamber multi-source separation placement structure of an isotope electromagnetic separator, so as to solve the problem that a plurality of ion sources of the isotope electromagnetic separator are easily broken down.

In order to achieve the above objects, the embodiments of the present application provide a one-chamber multi-source separation placing structure of an isotope electromagnetic separator, which includes a vacuum chamber, an ion source, a driving field, and a receiver. The ion source is used for emitting ions into the vacuum chamber; the driving field is used for driving ions emitted by the ion source to move in an accelerating way and deflect in the vacuum chamber; the number of the receivers is multiple, the number of the receivers is consistent with that of the ion sources, each receiver is arranged on a path after the accelerated motion and deflection of the ions emitted by the corresponding ion source so as to receive multiple isotopes of the ions emitted by the corresponding ion source, and the motion paths of the ions emitted by the multiple ion sources are not interfered with each other.

Further, the vacuum chamber extends in a first direction, and the plurality of ion sources are located on different straight lines extending in the first direction.

Furthermore, the number of the ion sources is two, the width direction of the vacuum chamber is a second direction, the second direction is perpendicular to the first direction, and the two ion sources are arranged at two ends of the vacuum chamber along the second direction.

Further, the two ion sources have a spacing in the first direction.

Further, a line connecting each ion source with its corresponding receiver extends in the first direction.

Furthermore, one ion source and one receiver which correspondingly receives the ions emitted by the ion source form an emission and reception group, and in two groups of emission and reception groups, the ion source in one group of emission and reception groups is arranged opposite to the receiver in the other group of emission and reception groups along the second direction.

Further, ions emitted by the ion source are parallel to the second direction before being deflected.

Further, the ion source and the vacuum chamber are hermetically connected through a first flange structure, and the first flange structure comprises a first flange and a first sub-flange. Wherein, the first flange is hermetically connected with the vacuum chamber; the first sub-flange is connected with the first flange in a sealing mode, and the ion source is connected with the first flange in a sealing mode through the first sub-flange.

Further, the receiver is connected with the vacuum chamber in a sealing mode through a second flange structure, and the second flange structure comprises a second flange and a second sub-flange. Wherein, the second flange is hermetically connected with the vacuum chamber; the second sub-flange is connected with the second flange in a sealing mode, and the receiver is connected with the second flange in a sealing mode through the second sub-flange.

Further, the drive field comprises an electric field for accelerating the ions and a magnetic field for deflecting the accelerated ions.

Further, the vacuum chamber is provided with an observation window for observing an image formed by the ions received at the receiver.

The embodiment of the application provides a structure is placed in separation of a room multisource of isotope electromagnetic separator, and vacuum environment has certain insulating action, and the motion route mutually noninterfere of the ion of a plurality of ion sources transmission can the insulating properties that vacuum environment in the effectual utilization vacuum chamber brought, is favorable to avoiding the ion of a plurality of ion sources transmission to influence the stability of isotope separation at the in-process of vacuum indoor motion each other.

Drawings

FIG. 1 is a schematic diagram of a one-chamber multi-source separation arrangement for an isotope electromagnetic separator in an embodiment of the present application;

FIG. 2 is a schematic view of an embodiment of an ion source mounted on a vacuum chamber;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

Reference numerals:

1-vacuum chamber; 2-a source of ions; 3-a receiver; 4-a first flange configuration; 41-a first flange; 42-a first sub-flange; 43-a first fastener; 44-a second fastener; 5-ion beam; a-a first direction; b-a second direction.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless otherwise specified.

In addition, in the embodiments of the present application, directional terms such as "upper", "lower", "left", and "right" are defined with respect to the schematically-placed orientation of components in the drawings, and it is to be understood that these directional terms are relative concepts, which are used for descriptive and clarifying purposes, and may be changed accordingly according to changes in the orientation in which the components are placed in the drawings.

In the embodiments of the present application, unless otherwise explicitly specified or limited, the term "connected" is to be understood broadly, for example, "connected" may be a fixed connection, a detachable connection, or an integral body; may be directly connected or indirectly connected through an intermediate.

In the embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

With the development of isotope application technology, high-abundance isotopes have been widely used in various fields such as national defense, metering, aerospace, industry, agriculture, biology, medicine, and the like. In the medical field, to¹⁷⁶Yb and⁸⁸radiopharmaceuticals with isotopes such as Sr as core precursor materials are widely used in cancer therapy and diagnosis; in the biological field, isotopes can be used for revealing the secrecy of physicochemical processes in human bodies and cells, and play an important role on the basis of explaining substances of life activities; in the field of military and national defense,³⁹K、⁸⁷rb isotope is used as a raw material for alkali metal magnetometers, and⁸⁵Rb、⁸⁷Rb、¹⁷¹the isotopes such as Yb have an important position in a satellite navigation time-frequency system, and the rubidium clock is an atomic clock widely used in the current navigation system.

Isotopic abundance is the proportion of an isotope in a substance and can be expressed as an atomic or mass fraction. The acquisition of high abundance isotopes requires the support of isotope separation techniques for separating multiple isotopes of an element mixed together to obtain high abundance isotopes. The chemical properties of various isotopes of the same element are very similar due to the same nuclear proton number and nuclear electron number, and the separation difficulty is very high, but the nuclear neutron numbers of the isotopes are different, so the atomic weights of the isotopes are different, the difference of the isotopes or molecules on the thermodynamic property is caused, and the separation purpose can be achieved by utilizing the slight difference of the physical nuclear chemical properties among the isotopes. It should be noted that isotopes can be classified into stable isotopes and radioactive isotopes according to radioactive classification of isotopes, and isotopes can be classified into natural isotopes and artificially produced isotopes according to production methods of isotopes, but such separation process belongs to the category of isotope separation as long as the separated isotopes belong to the same element regardless of the stable isotopes or the radioactive isotopes, and the natural isotopes and the artificially produced isotopes.

Common isotope separation methods include a gas diffusion method, a centrifugal method, an electromagnetic method and the like, wherein the gas diffusion method is also called a porous membrane diffusion method, the aperture of a porous membrane is about 0.01-0.03 mu m, the basic working principle of the gas diffusion method is that isotopes are separated according to the difference of diffusion speeds of isotope molecules through the porous membrane, so that light isotopes are gathered on one side of the membrane, recombinant isotopes are gathered on the other side of the membrane, and the gas diffusion method is a main method for separating uranium 235; the basic working principle of the centrifugal method is to separate isotopes according to different equilibrium distributions of gas molecules with different masses in a centrifugal field, and the separation coefficient of the centrifugal method is related to the absolute mass difference; the electromagnetic isotope separation technology mainly uses an ion source, an electric field, a magnetic field and the like to separate isotopes. The ion source is used for emitting various isotope ions of one element, the various isotope ions enter the magnetic field after being accelerated by the electric field, the various isotope ions have the same kinetic energy after being accelerated by the electric field and do circular motion under the influence of Lorentz force after entering the magnetic field, the isotope with larger mass has large motion radius, the isotope with smaller mass has small motion radius, and different isotopes have different motion trails in the magnetic field, so that the separation of the various isotopes is realized.

Compared with other separation methods such as a gas diffusion method, a centrifugal method and the like, the electromagnetic separation method has good universality, can almost separate all elements on the periodic table of the elements, is the only feasible method for obtaining the isotopes such as Rb, Yb and the like, has high isotope abundance obtained by separation, and is the best choice for preparing the high-abundance isotopes at present. However, the electromagnetic separation method has the disadvantages of low productivity, high cost and difficulty in meeting the use requirements of a plurality of technical fields for stable isotopes. In view of this problem, the related art discloses an isotope electromagnetic separator that is provided with a plurality of ion sources and a plurality of receivers, and ions emitted from the plurality of ion sources are deflected in the same magnetic field and received by the corresponding receivers, respectively. Therefore, compared with the condition that the number of the ion sources and the number of the receivers are both one, the utilization rate of the magnetic field is higher, so that the capacity of the isotope electromagnetic separator is higher, the number of the ion sources is several, and the capacity can be improved by several times.

However, although the ion source is a device that operates at high temperature and high pressure, a plurality of ion sources emit ions to the same magnetic field, which can improve productivity, but also causes a problem in terms of insulation, and if the plurality of ion sources break down each other, production cannot be performed.

In view of the above, referring to fig. 1, the present application provides a one-chamber multi-source separation placing structure of an isotope electromagnetic separator, which includes a vacuum chamber 1, an ion source 2, a driving field, and a receiver 3. The number of the ion sources 2 is multiple, and the ion sources 2 are used for emitting ions into the vacuum chamber 1; the driving field is used for driving ions emitted by the ion source 2 to move in an accelerating way and deflect in the vacuum chamber 1; the number of the receivers 3 is multiple, the number of the receivers 3 is the same as that of the ion sources 2, each receiver 3 is arranged on a path after the accelerated motion and deflection of the ions emitted by the corresponding ion source 2 so as to receive multiple isotopes of the ions emitted by the corresponding ion source 2, and the motion paths of the ions emitted by the ion sources 2 are not interfered with each other.

Wherein, the vacuum chamber 1 is used for providing a vacuum environment, and the ions perform deflection motion in the vacuum chamber 1 under the action of the driving field. The ions need to be carried out in a vacuum environment during the movement process, so as to avoid the collision of the ions and air molecules and influence the stability of separation. Generally, the degree of vacuum of the vacuum is generally not less than 3X 10^-3Pa。

In some embodiments, the vacuum chamber 1 is provided with a viewing window for viewing an image formed by ions received by the interface. With the structure, the arrangement of the observation window is convenient for the working state of the breakdown-preventing multi-source isotope electromagnetic separator in one room to be monitored by the working personnel. Based on this, in some embodiments, the observation window may be made of materials such as calcium fluoride, barium fluoride, zinc selenide, magnesium fluoride, and synthetic quartz glass.

The ion source 2 is filled with a raw material for ionizing neutral atoms or molecules and extracting an ion beam 5 therefrom. In some embodiments, the ion source 2 is a magnetic arc discharge ion source 2. Specifically, the elements to be separated are located in a crucible of the ion source 2, heated by an electric furnace to form vapor, which enters an arc chamber and becomes ions in a plasma arc discharge. Of course, in some other embodiments, the ion source 2 may also be the surface ionization ion source 2, the high temperature ion source 2, the gas ion source 2, and the like. It should be noted that the types of the plurality of ion sources 2 provided in the present application may be completely the same or not, and the present application does not limit this.

The drive field comprises an electric field for accelerating the ions and a magnetic field for deflecting the accelerated ions. Referring to fig. 1, a plurality of ions emitted from the same ion source 2 form an ion beam 5 during acceleration and deflection. Preferably, in some embodiments, the acceleration voltage in the electric field is between 30kV and 50 kV.

The receptacle 3 is for receiving the separated plurality of isotopes. In some embodiments, the receiver 3 has a collection bag made of high purity copper sheet or graphite, and the separated isotopes are accumulated in each collection bag by placing the collection bag at a position where the ion beam 5 is deflected and then focused. And taking out the isotope in the collection bag, and carrying out chemical treatment, extraction, purification and the like to obtain the isotope product.

The embodiment of the application provides a structure is placed in separation of a room multisource of isotope electromagnetic separator, and vacuum environment has certain insulating action, and the motion route mutually noninterfere of the ion of a plurality of ion sources 2 transmission can the insulating properties that vacuum environment in the effectual utilization vacuum chamber brought, is favorable to avoiding the in-process interact of the ion of a plurality of ion sources 2 transmissions motion in vacuum chamber 1, influences isotope separation's stability.

Referring to fig. 1, in order to avoid mutual interference of ions emitted from the plurality of ion sources 2 during the movement process in the vacuum chamber 1, a larger distance may be provided between the plurality of ion sources 2, so that a larger size vacuum isolation zone is formed between the plurality of ion sources 2, and the insulation environment brought by the vacuum chamber 1 can be utilized to a larger extent. Specifically, in some embodiments, the number of the ion sources 2 is two, two ion sources 2 are disposed on opposite sides of the vacuum chamber 1, and a line connecting the two ion sources 2 passes through the geometric center of the vacuum chamber 1. With such a structure, the two ion sources 2 have a larger distance therebetween, which is beneficial to avoiding the mutual breakdown of the two ion sources 2. On this basis, exemplarily, in some embodiments, the vacuum chamber 1 has a spherical structure, and a line connecting the two ion sources 2 passes through the spherical center of the vacuum chamber 1. In some other embodiments, the vacuum chamber 1 has a cylindrical structure, and the two ion sources 2 are arranged along opposite corners of the vacuum chamber 1.

Further, referring to fig. 1, the vacuum chamber 1 extends along a first direction a, and the plurality of ion sources 2 are located on different straight lines extending along the first direction a. Note that the first direction a is parallel to a plane of a moving path of the ions emitted from the plurality of ion sources 2 in the vacuum chamber 1. The plurality of ion sources 2 are located on different straight lines extending along the first direction a, that is, emission ends of any two ion sources 2 in the plurality of ion sources 2 have a distance in a direction perpendicular to the first direction a, the emission end of the ion source 2 refers to an end of the ion source 2 for emitting ions, and the ions leave the ion source 2 from the emission end of the ion source 2. Such a structure is advantageous for avoiding interference of the motion paths of the ions emitted from the plurality of ion sources 2.

On the basis that the plurality of ion sources 2 are located on different straight lines extending along the first direction a, preferably, referring to fig. 1, in some embodiments, the number of the ion sources 2 is two, the width direction of the vacuum chamber 1 is a second direction b, the second direction b is perpendicular to the first direction a, and the two ion sources 2 are disposed at two ends of the vacuum chamber 1 along the second direction b. With the structure, the length of the vacuum chamber 1 along the second direction b can be reasonably utilized, the distance between the two ion sources 2 is large, the vacuum environment between the two ion sources 2 can have a good insulation effect, and the phenomenon that ions emitted by the two ion sources 2 interfere with each other to cause breakdown is avoided.

Referring to fig. 1, the first direction a is a longitudinal direction of the vacuum chamber 1, and a plane formed by the first direction a and the second direction b is parallel to a plane where a moving path of ions emitted from the ion source 2 in the vacuum chamber 1 is located. Further, the length direction and the width direction of the vacuum chamber 1 refer to the extending direction of the wall surface of the vacuum chamber 1, and do not mean that the length of the vacuum chamber 1 in the first direction a is longer than the length in the second direction b, and the length of the vacuum chamber 1 in the first direction a may be longer than, equal to, or shorter than the length of the vacuum chamber 1 in the second direction b, that is, the length of the vacuum chamber 1 may be longer than, equal to, or shorter than the width of the vacuum chamber 1.

Preferably, in some embodiments, the first direction a and the second direction b are both perpendicular to the direction of gravity.

The structure is convenient for the installation and the placement of the ion source 2 and the receiver 3.

On the basis that two ion sources 2 are disposed at two ends of the vacuum chamber 1 along the second direction b, referring to fig. 1, in some embodiments, the two ion sources 2 have a spacing in the first direction a. With the structure, the distance between the two ion sources 2 is large, so that the vacuum environment between the two ion sources 2 has a good insulation effect, and the phenomenon of breakdown caused by mutual interference of ions emitted by the two ion sources 2 is avoided. Preferably, in some embodiments, two ion sources 2 are located at both ends of the vacuum chamber 1 in the first direction a. In such a structure, the two ion sources 2 are arranged at the opposite corners of the vacuum chamber 1, the length of the vacuum chamber 1 along the first direction a and the length of the vacuum chamber 1 along the second direction b can be reasonably utilized, and the insulation effect brought by the vacuum environment in the vacuum chamber 1 can be utilized to the maximum extent.

Further, referring to fig. 1, a connection line between each ion source 2 and its corresponding receiver 3 extends along the first direction a. The structure makes the distance of the ion moving in the vacuum chamber 1 longer, the distance of the multiple isotopes emitted by the same ion source 2 at the corresponding receiver 3 larger, which is convenient for the separation of the multiple isotopes, and on the other hand, the installation and placement of the receiver 3 on the vacuum chamber 1 are also convenient. Preferably, in some embodiments, the ions emitted by the ion source 2 are parallel to the second direction b before being deflected. In such a structure, under the action of the magnetic field, the motion trajectory of the ions emitted by the ion source 2 is a semicircle, and the motion direction of the ions before deflection is opposite to the motion direction at the receiver 3, in this case, the distance between the multiple isotopes emitted by the same ion source 2 at the corresponding receiver 3 is the largest, which is beneficial to the separation of the multiple isotopes.

Referring to fig. 1, in some embodiments, an ion source 2 and a corresponding receiver 3 for receiving ions emitted by the ion source are combined into an emission-reception group, and in two emission-reception groups, the ion source 2 in one emission-reception group and the receiver 3 in the other emission-reception group are disposed opposite to each other along a second direction b, on the basis that a connection line between each ion source 2 and the corresponding receiver 3 extends along the first direction a. The structure form is that two ion sources 2 are placed diagonally, two receivers 3 are also placed diagonally, the distribution of the ion sources 2 and the receivers 3 on the vacuum chamber 1 is reasonable, the distance between the two ion sources 2 is large, the utilization rate of the vacuum chamber 1 is high, and the structure of the one-chamber multi-source separation placement structure of the isotope electromagnetic separator is compact. Preferably, in some embodiments, the ions emitted by the ion source 2 are parallel to the second direction b before being deflected. It will be appreciated that in this case the ions emitted by the two ion sources 2 are moving in opposite directions before deflection.

Further, referring to fig. 2 and fig. 3, fig. 2 is a schematic structural view illustrating an ion source according to an embodiment of the present application installed on a vacuum chamber, and fig. 3 is a partially enlarged view of a portion a in fig. 2. The ion source 2 is sealingly connected to the vacuum chamber 1 by a first flange structure 4, the first flange structure 4 comprising a first flange 41 and a first sub-flange 42. Wherein, the first flange 41 is hermetically connected with the vacuum chamber 1; the first sub-flange 42 is hermetically connected to the first flange 41, and the ion source 2 is hermetically connected to the first flange 41 through the first sub-flange 42. In such a structure, the ion source 2 is hermetically connected with the vacuum chamber 1, so that the sealing performance of the ion source 2 and the vacuum chamber 1 is ensured, and air is prevented from entering the vacuum chamber 1. The degree of vacuum in the vacuum chamber 1 is generally required to be 3X 10^-3Pa, if air enters the vacuum chamber 1, the ion source 2 may be broken downThe air causes abnormal discharge, making the separation unstable. It may also cause the ions emitted from the ion source 2 to collide with air, affecting its original motion trajectory, resulting in a decrease in the abundance and yield of the separated isotopes. Generally, separating isotopes by using an isotope electromagnetic separation technique requires the following operations in sequence, namely, charging raw materials into the ion source 2; mounting the ion source 2 to the vacuum chamber 1; the vacuum chamber 1 is vacuumized until the vacuum degree in the vacuum chamber 1 reaches 3 multiplied by 10^-3Pa; separating isotopes until the raw material is exhausted or the cleanliness of the ion source 2 cannot meet the separation requirement; the ion source 2 is removed and the raw material is refilled. Therefore, the ion source 2 needs to be replaced frequently, in the process of replacing the ion source 2, the ion sources 2 of different models may need to be replaced, the structures of the first sub-flanges 42 on the ion sources 2 of different models are different, the positions, the sizes and the like of the connecting holes on the first sub-flanges 42 may change, in order to avoid frequent changes of the structure of the vacuum chamber 1, the ion source 2 is hermetically connected with the first flange 41, in the process of replacing the ion sources 2 of different models, only the connecting holes on the first flange 41 need to be adjusted, and operation of workers is facilitated.

In some embodiments, with continued reference to fig. 2 and 3, the first sub-flange 42 is sealingly connected to the first flange 41 by a first fastener 43. The first flange 41 is sealingly connected to the vacuum chamber 1 by means of second fastening members 44.

Further, the receiver 3 is sealingly connected to the vacuum chamber 1 by a second flange structure, which comprises a second flange and a second sub-flange. Wherein, the second sub-flange is hermetically connected with the vacuum chamber 1; the second sub-flange is connected with the second flange in a sealing mode, and the receiver 3 is connected with the second flange in a sealing mode through the second sub-flange. Structural style like this, maintain this prevent isotope electromagnetic separator of one room multisource of puncture and get the in-process, probably need to change the receiver 3 of different models, the structure of the sub-flange of second on the receiver 3 of different models is different, the position of the connecting hole on the sub-flange of second and size etc. all are possible to change, in order to avoid frequent structure to vacuum chamber 1 to change, with receiver 3 and second flange sealing connection, change the in-process of the receiver 3 of different models like this, only need adjust the connecting hole on the second flange, the staff's of being convenient for operation.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (11)

1. A one-compartment multi-source separation containment structure for an isotope electromagnetic separator, comprising:

a vacuum chamber;

a plurality of ion sources for emitting ions into the vacuum chamber;

a drive field for driving ions emitted by the ion source to move in an accelerating manner and to deflect in the vacuum chamber;

the number of the receivers is consistent with that of the ion sources, each receiver is arranged on a corresponding path of the ion emitted by the ion source after accelerated motion and deflection so as to receive multiple isotopes of the corresponding ion emitted by the ion source, and the motion paths of the ions emitted by the ion sources are not interfered with each other.

2. The one-chamber multi-source separation placement structure of an isotope electromagnetic separator of claim 1, wherein said vacuum chamber extends in a first direction, and a plurality of said ion sources are located on different straight lines extending in said first direction.

3. The one-chamber multi-source separation placing structure of an isotope electromagnetic separator in claim 2, wherein the number of the ion sources is two, the width direction of the vacuum chamber is a second direction, the second direction is perpendicular to the first direction, and the two ion sources are disposed at both ends of the vacuum chamber in the second direction.

4. The one-compartment multi-source separation arrangement of an isotope electromagnetic separator of claim 3, wherein two of said ion sources have a spacing in said first direction.

5. The one-compartment multi-source separation arrangement of an isotope electromagnetic separator of claim 3, wherein a line connecting each of said ion sources with its corresponding said receptacle extends in said first direction.

6. The one-chamber multi-source separation placement structure of an isotope electromagnetic separator of claim 5, wherein one said ion source and one said receiver corresponding to receive ions emitted therefrom are grouped into one emission-receiving group, and two said emission-receiving groups, wherein said ion source in one said emission-receiving group is disposed opposite to said receiver in the other said emission-receiving group along said second direction.

7. The one-compartment multi-source separation arrangement of an isotope electromagnetic separator of claim 5, wherein ions emitted by the ion source are parallel to the second direction prior to deflection.

8. The one-chamber multi-source separation placement structure of an isotope electromagnetic separator according to any one of claims 1 to 7, wherein the ion source and the vacuum chamber are sealingly connected by a first flange structure, the first flange structure comprising:

the first flange is connected with the vacuum chamber in a sealing way;

the first sub-flange is connected with the first flange in a sealing mode, and the ion source is connected with the first flange in a sealing mode through the first sub-flange.

9. The isotope electromagnetic separator of any one of claims 1 to 7, wherein the receptacle is sealingly connected to the vacuum chamber by a second flange structure, the second flange structure comprising:

the second flange is hermetically connected with the vacuum chamber;

and the receiver is connected with the second flange in a sealing way through the second sub-flange.

10. The one-compartment multi-source separation placement structure of an isotope electromagnetic separator according to any one of claims 1 to 7, wherein the drive field comprises an electric field for accelerating the ions and a magnetic field for deflecting the accelerated ions.

11. The one-chamber multi-source separation placement structure of an isotope electromagnetic separator according to any one of claims 1 to 7, wherein an observation window is provided on the vacuum chamber for observing an image formed by the ions received at the receiver.

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