Light guide element for radiation detector and radiation detector

Abstract

The utility model provides a light guide element for a radiation detector and the radiation detector, which belong to the technical field of photoelectric detection, and comprise a crystal body, a light guide plate and a light guide plate, the butt joint mechanism is arranged on the crystal body, specifically, the butt joint mechanism comprises two cross-shaped insertion holes which are symmetrically formed, cross-shaped insertion blocks are arranged on the inner walls of the cross-shaped insertion holes in a sliding mode, and the tops of the two cross-shaped insertion blocks are fixedly connected with the bottom of the light guide element body; the fixing mechanism is arranged on the light guide element body and used in cooperation with the crystal body, and specifically, the fixing mechanism further comprises a connecting assembly arranged on the light guide element body; and the clamping assembly is arranged on the crystal body and is matched with the connecting assembly for use. According to the utility model, the connection mode of the light guide element and the crystal is replaced, the connection fault tolerance of the light guide element and the crystal is improved, and the stability when the light guide element and the crystal are connected is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photoelectric detection technical field, concretely relates to a light guide element for radiation detector and radiation detector. BACKGROUND

[0002] Positron emission computed tomography is a kind of radiation detector for observing the metabolic process of body, and its principle is to inject isotopes labeled medicine (such as one or two of the isotopes of carbon, fluorine, oxygen and nitrogen) with positron emission into human body, and the annihilation effect occurs in the physiological metabolic process of human body, generating two back-to-back emitted γ photons with energy of 0.511 MeV, after the γ photons enter the crystal, the crystal will ionize and excite visible light, and the visible light is projected onto the photodetector and converted into an electrical signal by the photodetector. The intensity of the electrical signal output by each photodetector is proportional to the intensity of the visible light received, and the energy of the γ photons and the position of the γ photons incident to the crystal are obtained according to the intensity of the electrical signal output by each photodetector.

[0003] The application number "CN202022273363.6" describes "a light guide element for radiation detector and radiation detector, the light guide element has an incident surface and an exit surface opposite to each other in its own thickness direction, the exit surface is divided into a light transmission region for mounting a photodetector element and a remaining exposed region, and the exposed region is covered with an end surface reflection layer formed by applying a reflective material."

[0004] The light guide element of the above-mentioned patent can reduce photon escape and improve the performance of the radiation detector, but the connection relationship between the light guide element and the crystal of the above-mentioned patent is only by pasting, which can easily cause the light guide element and the crystal to shift and fall during detection operation, thereby affecting the subsequent detection efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a light guide element for radiation detector and radiation detector, and aims at solving the problem of unstable connection between the light guide element and the crystal in the prior art, and the problem of easy shift and fall.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A light guide element for radiation detector and radiation detector, comprising:

[0008] A crystal body;

[0009] A docking mechanism is arranged on the crystal body to realize the alignment of the crystal and the light guide element.

[0010] The light guide element body is arranged on the docking mechanism;

[0011] The fixing mechanism is arranged on the light guide element body and is used in cooperation with the crystal body to improve the stability of the connection between the crystal body and the light guide element body.

[0012] As a preferred scheme of the utility model, the docking mechanism comprises two cross insertion holes arranged symmetrically, cross insertion blocks are slidably arranged on the inner walls of the cross insertion holes, and the top portions of the two cross insertion blocks are fixedly connected with the bottom portion of the light guide element body.

[0013] As a preferred scheme of the utility model, the fixing mechanism further comprises:

[0014] The connecting assembly is arranged on the light guide element body.

[0015] The clamping assembly is arranged on the crystal body and is used in cooperation with the connecting assembly.

[0016] As a preferred scheme of the utility model, the connecting assembly comprises two openings arranged symmetrically, a connecting block is fixedly arranged on the inner wall of the opening, two sliding grooves are symmetrically arranged on the side wall of the connecting block, a pressing block is slidably arranged on the inner wall of the sliding groove, a spring is fixedly arranged between the two pressing blocks, and a T-shaped clamping block is fixedly arranged on the end portion of the pressing block.

[0017] As a preferred scheme of the utility model, the clamping assembly comprises two docking blocks arranged symmetrically, a groove is arranged on the top portion of the docking block, clamping grooves are uniformly arranged on the two side walls of the groove, and the clamping grooves and the T-shaped clamping block are matched with each other.

[0018] As a preferred scheme of the utility model, the gap formed by the opening and the connecting block is used in cooperation with the docking block.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] 1. Two openings are arranged on the two side walls of the light guide element body, a connecting block is fixedly arranged on the inner wall of the opening, two sliding grooves are symmetrically arranged on the side wall of the connecting block, a pressing block is slidably arranged on the inner wall of the sliding groove, a spring is fixedly arranged between the two pressing blocks, a T-shaped clamping block is fixedly arranged on the end portion of the pressing block, two docking blocks are fixedly arranged on the top portion of the crystal body, a groove is arranged on the top portion of the docking block, clamping grooves are uniformly arranged on the two side walls of the groove, and the clamping grooves and the T-shaped clamping block are matched with each other.

[0021] 2、By two cross sockets are opened in the top of the crystal body, the cross socket inner wall is slidably provided with a cross block, the top of the two cross blocks is fixedly connected with the bottom of the light guide element body, replacing the paste connection of the light guide element and the crystal, and the connection effect of the light guide element and the crystal is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application.

[0023] In the drawings:

[0024] Figure 1 It is a first perspective view of a light guide element and a radiation detector for a radiation detector of the present application;

[0025] Figure 2 It is a first perspective view of a light guide element and a radiation detector for a radiation detector of the present application;

[0026] Figure 3 It is a first perspective view of a light guide element and a radiation detector for a radiation detector of the present application;

[0027] Figure 4 It is a first perspective view of a light guide element and a radiation detector for a radiation detector of the present application;

[0028] Figure 5 It is a first perspective view of a light guide element and a radiation detector for a radiation detector of the present application;

[0029] Figure 6 It is the present application Figure 5 The enlarged view of A in the present application.

[0030] In the drawings: 1, crystal body; 2, cross socket; 3, cross block; 4, light guide element body; 5, opening; 6, connecting block; 7, pressing block; 8, spring; 9, T-shaped clamping block; 10, sliding groove; 11, butt joint block; 12, groove; 13, clamping groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] EMBODIMENT

[0033] Referring to Figures 1-6 The utility model provides the following technical scheme:

[0034] A light guide element for a radiation detector and a radiation detector, which is composed of a crystal body 1, a docking mechanism, a light guide element body 4 and a fixing mechanism, and is specifically described as follows:

[0035] Referring to Figure 1 The docking mechanism is arranged on the crystal body 1 to realize the alignment of the crystal and the light guide element. Specifically, the docking mechanism comprises two symmetrical cross-shaped insertion holes 2, the two cross-shaped insertion holes 2 are arranged on the top of the crystal body 1, cross-shaped insertion blocks 3 are slidably arranged on the inner walls of the cross-shaped insertion holes 2, and the top portions of the two cross-shaped insertion blocks 3 are fixedly connected with the bottom portion of the light guide element body 4.

[0036] In this embodiment, the two cross-shaped insertion holes 2 are arranged on the top of the crystal body 1, the cross-shaped insertion blocks 3 are slidably arranged on the inner walls of the cross-shaped insertion holes 2, and the top portions of the two cross-shaped insertion blocks 3 are fixedly connected with the bottom portion of the light guide element body 4, so that the connection effect of the light guide element and the crystal is improved.

[0037] Referring to Figure 2 The light guide element body 4 is arranged on the docking mechanism.

[0038] Referring to Figure 3 and Figure 6 The fixing mechanism is arranged on the light guide element body 4 and is used in cooperation with the crystal body 1 to improve the stability of the connection between the crystal and the light guide element. Specifically, the fixing mechanism further comprises a connecting assembly arranged on the light guide element body 4. Specifically, the connecting assembly comprises two symmetrical openings 5 arranged on the two side walls of the light guide element body 4, connecting blocks 6 are welded on the inner walls of the openings 5, two symmetrical sliding grooves 10 are arranged on the side walls of the connecting blocks 6, pressing blocks 7 are slidably arranged in the sliding grooves 10, springs 8 are welded between the two pressing blocks 7, and T-shaped clamping blocks 9 are welded on the end portions of the pressing blocks 7.

[0039] Referring to Figure 4 The clamping assembly is arranged on the crystal body 1 and is used in cooperation with the connecting assembly. Specifically, the clamping assembly comprises two symmetrical docking blocks 11 arranged on the top of the crystal body 1, recesses 12 are arranged on the top portions of the docking blocks 11, clamping grooves 13 are uniformly arranged on the two side walls of the recesses 12, the clamping grooves 13 and the T-shaped clamping blocks 9 are matched with each other, and the clamping connection between the crystal body 1 and the light guide element body 4 is manually controlled.

[0040] In the embodiment, two openings 5 are formed in the two side walls of the light guide element body 4, the inner wall of the opening 5 is welded with a connecting block 6, the side wall of the connecting block 6 is symmetrically provided with two sliding grooves 10, the inner wall of the sliding groove 10 is slidably provided with a pressing block 7, the two pressing blocks 7 are welded with a spring 8, the end of the pressing block 7 is welded with a T-shaped clamping block 9, two abutting blocks 11 are welded on the top of the crystal body 1, the top of the abutting block 11 is provided with a groove 12, the two side walls of the groove 12 are uniformly provided with clamping grooves 13, and the clamping grooves 13 and the T-shaped clamping block 9 are matched with each other, the clamping connection of the crystal body 1 and the light guide element body 4 is manually controlled, the stability of the crystal body 1 and the light guide element body 4 during connection is effectively improved, and the working efficiency during detection is further improved.

[0041] Please refer to Figure 5 The gap formed by the opening 5 and the connecting block 6 is used in cooperation with the abutting block 11.

[0042] The working principle and use process of the utility model: when the crystal body 1 and the light guide element body 4 are installed and connected, the previous technology is fixed by the adhesion of the contact surface of the crystal body 1 and the light guide element body 4, but if the position of the crystal body 1 and the light guide element body 4 is deviated during connection, the overall fault tolerance is greatly reduced, and the crystal body 1 and the light guide element body 4 are prone to falling during subsequent detection operation, which further affects the subsequent detection operation, therefore, the device is matched by the sliding of the cross-shaped socket 2 and the cross-shaped plug 3, the crystal body 1 and the light guide element body 4 are assisted to align and adhere, then the pressing block 7 at both ends of the light guide element body 4 is pressed by hand, the spring 8 is elastically matched, the pressing block 7 and the sliding groove 10 are slidably matched, the two T-shaped clamping blocks 9 are driven to displace to the middle section of the connecting block 6, then the abutting block 11 is inserted into the gap formed between the opening 5 and the connecting block 6, finally, the pressing block 7 is released, the T-shaped clamping block 9 fixedly connected with the pressing block 7 is elastically matched by the spring 8 and is bounced back to the initial position, then the clamping of the T-shaped clamping block 9 and the clamping groove 13 on the abutting block 11 is realized, and the stability of the crystal body 1 and the light guide element body 4 during connection is effectively improved.

[0043] Finally, it should be noted that: the above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, the skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A light guide element for a radiation detector and a radiation detector, characterized in that Including: The crystal body (1); The docking mechanism is provided on the crystal body (1), which realizes the alignment of the crystal and the light guide element; The light guide element body (4) is provided on the docking mechanism; The fixing mechanism is provided on the light guide element body (4) and cooperates with the crystal body (1), which is used to improve the stability of the connection between the crystal and the light guide element; The docking mechanism includes two symmetrical cross insertion holes (2), the inner wall of the cross insertion hole (2) is provided with a cross insertion block (3), and the top of the two cross insertion blocks (3) is fixedly connected with the bottom of the light guide element body (4); The fixing mechanism further comprises: The connecting assembly is provided on the light guide element body (4); The clamping assembly is provided on the crystal body (1) and cooperates with the connecting assembly; The connecting assembly includes two symmetrical groups of openings (5), the inner wall of the opening (5) is fixedly provided with a connecting block (6), the side wall of the connecting block (6) is symmetrically provided with two sliding grooves (10), the inner wall of the sliding groove (10) is slidably provided with a pressing block (7), two pressing blocks (7) are fixedly provided with a spring (8), and the end of the pressing block (7) is fixedly provided with a T-shaped clamping block (9); The clamping assembly includes two symmetrical docking blocks (11), the top of the docking block (11) is provided with a groove (12), the two side walls of the groove (12) are uniformly provided with clamping grooves (13), and the clamping grooves (13) and the T-shaped clamping block (9) are matched.

2. A light guide element for a radiation detector and a radiation detector according to claim 1, characterized in that The gap formed by the opening (5) and the connecting block (6) cooperates with the docking block (11).

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