CN106908831A - Particle track detection device based on micro structure array - Google Patents

Abstract

The present disclosure provides a particle track detection device based on a microstructure array, which includes: a scintillator for generating scintillation light based on the movement of particles in the scintillator; a microstructure array for modulating the scintillation light , and guide the modulated scintillation light to a light detection element; the light detection element is used to receive the modulated scintillation light; a particle track detection unit is used to receive the light based on the light detection element The scintillation light is used to calculate the location where the scintillation light is generated, and the particle track is calculated based on the location where the scintillation light is generated. The disclosure realizes the identification of the particle track, reduces the processing difficulty, and further reduces the processing cost.

Description

Particle track detection device based on microstructure array

technical field

The present disclosure relates to the field of particle track detection and optics, in particular to a particle track detection device based on a microstructure array.

Background technique

Detecting particles and extracting their basic properties is a main way and means for human beings to go deep into the microscopic world. Through the identification of particle tracks, information such as particle strength, energy, position, and direction can be obtained.

At present, traditional line array and area array detectors cannot achieve depth resolution, so the identification of particle tracks cannot be realized. The use of volume array detectors, such as scintillator arrays with layers interlaced with each other, can realize the identification of particle tracks to a certain extent, but the structure of the volume array is more complicated due to the inconsistency between layers.

It can be seen from the above that the traditional line array and area array detectors cannot realize the identification of particle tracks. Although the particle track identification can be realized to a certain extent by using the volume array detector, the complex structure of the volume array makes the processing difficult and the processing cost is high.

It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to those of ordinary skill in the art.

Contents of the invention

The purpose of the present disclosure is to provide a particle track detection device based on a microstructure array, thereby overcoming one or more problems caused by limitations and defects of related technologies at least to a certain extent.

According to one aspect of the present disclosure, a particle track detection device based on a microstructure array is provided, including:

a scintillator for generating scintillation light based on movement of particles within said scintillator;

a microstructure array for modulating the scintillation light, and directing the modulated scintillation light to a photodetection element;

The photodetection element is used to receive the modulated scintillation light;

The particle track detection unit is configured to calculate the position where the scintillation light is generated based on the scintillation light received by the light detection element, and calculate the particle track according to the position where the scintillation light is generated.

In an exemplary embodiment of the present disclosure, the microstructure array is composed of a plurality of microstructures, wherein the plurality of microstructures form a line array or an area array.

In an exemplary embodiment of the present disclosure, the microstructure array covers all or part of the surface of the scintillator.

In an exemplary embodiment of the present disclosure, the microstructure array is processed by scintillator surface, scintillator surface coating, or the microstructure is manufactured as an independent device and coupled through a coupling medium. production.

In an exemplary embodiment of the present disclosure, the microstructure array adopts any one of a lens array, a prism array, or an optical modulation microstructure.

In an exemplary embodiment of the present disclosure, the microstructure array is coupled to the photodetection element in a manner of close contact or a gap.

In an exemplary embodiment of the present disclosure, a coupling medium is further included between the microstructure array and the light detection element.

In an exemplary embodiment of the present disclosure, there is at least one type of the coupling medium, wherein the coupling medium can be penetrated by the scintillation light or a part of the scintillation light.

In an exemplary embodiment of the present disclosure, the microstructure array is coupled to the scintillator in a tight combination or with a gap left.

In an exemplary embodiment of the present disclosure, the microstructure array and the scintillator are coupled through one or more media.

An exemplary embodiment of the present disclosure provides a particle track detection device based on a microstructure array. The microstructure array is used to modulate the scintillation light generated by the movement of particles in the scintillator to the light detection element, and based on the light received by the light detection element The scintillation light calculates the position where the scintillation light is generated, and in turn calculates the particle track. On the one hand, the identification of the particle track is realized by the above-mentioned device. On the other hand, the use of the microstructure array reduces the processing difficulty and further reduces the processing cost.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The above and other features and advantages of the present disclosure will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings. Apparently, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings according to these drawings without creative efforts. In the attached picture:

FIG. 1 is a block diagram of a particle track detection device based on a microstructure array in the present disclosure.

FIG. 2 is a schematic diagram of a particle track detection device based on a microstructure array according to the present disclosure.

detailed description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or that other methods, components, materials, devices, steps, etc. may be employed. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings identify the same or similar parts, and thus repeated descriptions thereof will be omitted.

In this exemplary embodiment, a particle track detection device based on a microstructure array is provided. Referring to FIG. 1 and FIG. 2 , the microstructure array-based particle track detection device 100 may include: a scintillator 101 , a microstructure array 102 , the light detection element 103 , and a particle track detection unit 104 . in:

The scintillator 101 may be used to generate scintillation light 106 based on the movement of particles in said scintillator 101 .

The microstructure array 102 can be used to modulate the scintillation light 106 and guide the modulated scintillation light 106 to a light detection element 103 .

The light detection element 103 can be used to receive the modulated scintillation light 106 .

The particle track detection unit 104 can be used to calculate the position where the scintillation light 106 is generated based on the scintillation light 106 received by the light detection element 103, and calculate the particle track according to the position where the scintillation light 106 is generated 107.

The particle track detection device based on the microstructure array provided in this exemplary embodiment, on the one hand, realizes the identification of the particle track through the above-mentioned device. On the other hand, the use of the microstructure array reduces the processing difficulty and further reduces the processing cost.

Next, various parts of the microstructure array-based particle track detecting device in this exemplary embodiment will be described in more detail with reference to FIG. 1 and FIG. 2 .

The scintillator 101 may be used to generate scintillation light 106 based on the movement of particles in said scintillator 101 .

In this exemplary embodiment, the scintillator 101 is a type of material capable of emitting light after absorbing high-energy particles or rays. The scintillator 101 may be a continuous scintillator, or may be formed by stacking a plurality of scintillators, which is not specifically limited in this exemplary embodiment. The material of the scintillator 101 can be a crystal (such as BGO, LSO, LYSO, CsI, etc.), or an organic material (such as plastic). The form of the scintillator 101 can be liquid or other forms. The shape of the scintillator 101 may be a cube or other shapes, and the shape of the scintillator may be determined according to a specific application scenario. The particles are charged particles or neutral particles that can move in the scintillator 101 to generate scintillation light 106 , such as electrons, protons, ions, photons, neutrons and the like.

The microstructure array 102 can be used to modulate the scintillation light 106 and guide the modulated scintillation light 106 to the light detection element 103 .

In this exemplary embodiment, the aforementioned modulation of the scintillation light 106 refers to focusing the scintillation light 106 . Specifically, the microstructure array 102 focuses the scintillation light 106 generated by particles moving in the scintillator 101 , and guides the focused scintillation light 106 to a photodetection element 103 . By adopting the microstructure array 102, the processing difficulty is reduced, and further, the processing cost is also reduced.

Further, the microstructure array 102 may be composed of multiple microstructure arrays, wherein the multiple microstructure arrays form a line array or a surface array. Further, the microstructure array 102 covers all or part of the surface of the scintillator 101 .

Further, the microstructure array 102 can be made in the following ways: 1. The surface of the scintillator 101 can be processed to obtain the microstructure array 102 . Second, the microstructure array 102 can be formed by coating the surface of the scintillator 101 . 3. The microstructure can be made into independent devices first, and then multiple independent devices are coupled through a coupling medium (such as optical glue) to obtain the microstructure array 102 .

Further, the microstructure array 102 may adopt any one of a lens array, a prism array, or an optical modulation microstructure. For example, the microstructure array 102 may use a lens array. When the scintillation light 106 passes through the lens array, the lens array focuses the scintillation light 106 and guides the focused scintillation light 106 to the light detection element 103 .

Further, the microstructure array 102 and the scintillator 101 can be coupled in the following ways: 1. The microstructure array 102 and the scintillator 101 can be coupled in a tight combination or with a gap, specifically In other words, the microstructure array 102 and the scintillator 101 can be closely combined, or a certain gap can be left between the microstructure array 102 and the scintillator 101 . 2. The microstructure array 102 and the scintillator 101 may be coupled through one or more media. Specifically, the microstructure array 102 and the scintillator 101 may be coupled through one medium, or may be coupled through multiple different mediums.

The light detection element 103 can be used to receive the modulated scintillation light 106 .

In this exemplary embodiment, the photodetection element 103 may be a photoelectric converter (such as a photomultiplier tube, a silicon photomultiplier tube, a CCD, an EMCCD, etc.), or other photodetection elements with position resolution capabilities, or It may be a detection system including a light detection element, which is not specifically limited in this exemplary embodiment.

Further, the microstructure array 102 and the photodetection element 103 may be coupled in the following ways: 1. The microstructure array 102 and the photodetection element 103 may be tightly coupled or coupled with a gap. Specifically, the microstructure array 102 and the photodetection element 103 may be closely combined, or a certain gap may be left between the microstructure array 102 and the photodetection element 103 . 2. A coupling medium 105 may also be included between the microstructure array 102 and the photodetection element 103 . There is at least one type of the coupling medium 105 , wherein the coupling medium 105 can be penetrated by the scintillation light 106 or a part of the scintillation light 106 . Specifically, the microstructure array 102 and the light detection element 103 may be coupled through a coupling medium 105 . Further, the type of the coupling medium 105 may be one type, or two or more types. It should be noted that no matter how many kinds of coupling media 105 are used for coupling, all or part of the scintillation light 106 must be allowed to pass through the coupling media 105 . Referring to FIG. 2 , the photodetection element 103 is coupled to the microstructure array 102 through a coupling medium 105 .

In another exemplary embodiment, the size and positional relationship of the scintillator 101, the microstructure array 102, the coupling medium 105, and the photodetection element 103 can form an optimal object image according to the particle track depth, the microstructure array, and the photodetection element. relationship design. Due to the depth effect, it is difficult to establish a strict object-image relationship, so it can also be designed according to the actual detection position reference object-image relationship. Further, the coverage area of the scintillator 101 , the microstructure array 102 , the coupling medium 105 and the photodetection element 103 can be designed according to the collection method of the scintillation light 106 .

The particle track detection unit 104 can be used to calculate the position where the scintillation light 106 is generated based on the scintillation light 106 received by the light detection element 103, and calculate the particle track according to the position where the scintillation light 106 is generated 107.

In this exemplary embodiment, first, the particle track detection unit calculates the position where the scintillation light is generated based on the position of the scintillation light received by the photodetection element through the refraction relationship of the scintillation light. Then, the distribution of the location where the scintillation light is generated is obtained according to the location where the scintillation light is generated, and the track of the particle is calculated based on the distribution of the location where the scintillation light is generated. In this exemplary embodiment, the scintillation light is modulated by the microstructure array, and the position where the scintillation light is generated is calculated according to the modulated scintillation light, and then the track of the particle is calculated, thereby realizing the identification of the particle track.

Next, the operation process of the microstructure array-based particle track detecting device in this example embodiment will be described in detail.

First, when a particle is incident into the scintillator 101 , the scintillator 101 is excited to generate scintillation light 106 based on the motion of the particle in the scintillator 101 . Then, the microstructure array 102 modulates the scintillation light 106 and guides the modulated scintillation light 106 to the light detection element 103 . Then, the light detecting element 103 receives the modulated scintillation light 106 . Finally, the particle track detection unit 104 calculates the position where the scintillation light 106 is generated based on the scintillation light 106 received by the light detection element 103 , and calculates the particle track 107 according to the position where the scintillation light is generated.

Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered exemplary only, with the true scope and spirit of the disclosure indicated by the appended claims.

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. a kind of particle track detection device based on micro structure array, it is characterised in that including：

Scintillator, passage of scintillation light is produced for being moved in the scintillator based on particle；

Micro structure array, for modulating the passage of scintillation light, and by modulation after the optical detection device of flicker light directing one；

The optical detection device, for receiving the passage of scintillation light after modulation；

Particle track probe unit, the passage of scintillation light for being received based on the optical detection device calculates the generation sudden strain of a muscle The position of bright light, and particle track is calculated according to the position of the generation passage of scintillation light.

2. the particle track detection device based on micro structure array according to claim 1, it is characterised in that micro- knot Structure array is made up of multiple micro-structurals, wherein, the multiple micro-structural forms linear array or face array.

3. the particle track detection device based on micro structure array according to claim 2, it is characterised in that micro- knot Structure array is covered in all or part of surface of the scintillator.

4. the particle track detection device based on micro structure array according to claim 3, it is characterised in that micro- knot Structure array is made as independent device and by coupling by scintillator surface processing, scintillator surface plated film or by the micro-structural Any one of medium is closed and couple mode to be made.

5. the particle track detection device based on micro structure array according to claim 4, it is characterised in that micro- knot Structure array is using any one in lens array, prism array or optical modulation micro-structural.

6. the particle track detection device based on micro structure array according to claim 1, it is characterised in that micro- knot Structure array is coupled with the optical detection device in the way of combining closely or leaving gap.

7. the particle track detection device based on micro structure array according to claim 1, it is characterised in that micro- knot Also include a couplant between structure array and the optical detection device.

8. the particle track detection device based on micro structure array according to claim 7, it is characterised in that the coupling The species of medium is at least one kind, wherein, the couplant can be penetrated by the passage of scintillation light or a part of passage of scintillation light.

9. the particle track detection device based on micro structure array according to claim 1, it is characterised in that micro- knot Structure array is coupled with the scintillator in the way of combining closely or leaving gap.

10. the particle track detection device based on micro structure array according to claim 1, it is characterised in that described micro- Array of structures passes through one or more medium couples with the scintillator.