CN217332877U - Detector structure - Google Patents

Abstract

The utility model provides a detector structure, which comprises an outer shell, be provided with the detector that a plurality of is array arrangement in the shell, the detector includes detector body and the shield shell that covers in detector body periphery, the detector body is the cylinder that the top surface has circular recess, be provided with the glossy incident window in surface in the circular recess, the top surface setting of shield shell is at the periphery of the circular recess of detector body, the centre is the loop configuration, the bottom of detector body is provided with the screw thread section of thick bamboo that surface and internal surface all have screw thread configuration, the screw thread section of thick bamboo pierces through shield shell and partly extends outside the shell, the external screw thread that extends the screw thread section of thick bamboo of shell carries out threaded connection through the nut, the internal thread that extends the screw thread section of thick bamboo of shell passes through the cooperation installation of joint. An object of the utility model is to provide a simple structure, easy dismounting's detector structure avoids at the detection in-process, and the detector leads to the testing result to deviate because of vibrations are strikeed, causes the damage scheduling problem to the detector.

Description

Detector structure

Technical Field

The utility model relates to a semiconductor detector technical field, concretely relates to detector structure.

Background

When alpha and beta rays are measured, the detector is required to have very good radiation performance (energy response, sensitivity, detection efficiency and the like) on the alpha and beta rays, have excellent adaptability to complex conditions such as field environment and the like, and have the characteristics of firmness, durability, modularization, strong decontamination capability and the like.

At present, the assembly of the detector has a certain intermittent problem, which reduces the detection efficiency of the detector, and in practical operation, once collision occurs, light people cause deviation to the result of detection data, and heavy people even have a probability to damage the detector, thereby bringing unnecessary trouble.

At present, the detector is assembled by generally using packaging modes such as conductive silver paste/indium-silver soldering paste and the like, so that the detector is difficult to assemble and disassemble and is inconvenient to maintain.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to provide a detector structure has advantages such as simple structure, easy dismounting, has solved at the detection in-process, and the detector leads to the problem that the deviation appears in the testing result because vibrations are strikeed.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

the utility model provides a detector structure, includes the shell, be provided with the detector that a plurality of is the array and arranges in the shell, the detector includes detector body and the shield shell that covers in detector body periphery, the detector body is the cylinder that the top surface has circular recess, be provided with the glossy incident window in surface in the circular recess, the top surface setting of shield shell is at the periphery of the circular recess of detector body, and the centre is the loop configuration, the bottom of detector body is provided with the screw thread section of thick bamboo that surface and internal surface all have the helicitic texture, the screw thread section of thick bamboo pierces through shield shell and part extend outside the shell, the external screw thread that extends the screw thread section of thick bamboo of shell carries out threaded connection through the nut, the internal thread that extends the screw thread section of thick bamboo of shell passes through the cooperation installation of joint.

In the technical scheme, the shell is made of a metal shell made of 316L stainless steel, the stainless steel has the advantages of good appearance glossiness, excellent pitting corrosion resistance, excellent high-temperature strength, weak magnetism after processing, no magnetism in a solid state and the like, and can better meet severe use environment, the detector adopts a passivation silicon-implanted semiconductor detector, has good radiation resistance and can obtain better energy resolution, an incident window forms a layer of smooth protection similar to a glass surface with an extremely thin (nm pole) layer through AI evaporation and Si oxide passivation, and is firm and durable, the detector is protected, and the detector is convenient to clean and wipe, so that the problems of influence on measurement accuracy and the like caused by radioactive dust and radioactive liquid contamination are reduced and eliminated, the shielding shell is made of aluminum, the weight is light, the size is small, and the interference of an interface of the detector and a front-end circuit can be effectively reduced, adopt the structure of assembling of honeycomb arrangement, can reduce and assemble the influence of clearance to the detector efficiency, through the inside and outside threaded connection of nut and joint and screw thread section of thick bamboo, fixed the detector, prevent that the detector from rocking at the detection in-process, damage when a certain detector in whole array detector, change can be dismantled in very convenient realization, fine maintainability has, the joint adopts Axial Microdot Female to connect, every connects and corresponds a detector unit, realize the power supply of detector, the output of ground connection and signal.

Further, still be provided with the apron on the shell, shell and apron are through articulated swing joint, be provided with a plurality of through-hole on the apron, the through-hole is corresponding with the detector that is the array and arranges in the shell, the detector top surface just can be placed in the through-hole.

Among the above-mentioned technical scheme, the apron also adopts 316L stainless steel material, the mode of shell and apron accessible joint is opened/closed, be not limited to this, it is corresponding and just can place in the through-hole to be the detector that the array was arranged in through-hole and the shell, so that every detector unit's top surface exposes, bury the edge portion part of every detector unit inside the stainless steel shell deeply simultaneously, possess very outstanding light-resistant effect, thereby do not let the detector cause the performance of surveying to weaken by a wide margin because the light effect of side.

Furthermore, soft silica gel is arranged around the plurality of detectors, and the soft silica gel fills the inside of the shell and contacts with the detectors.

Among the above-mentioned technical scheme, all set up soft silica gel through all around at the detector, promoted the shock resistance of detector and shaken the requirement, avoid leading to the detector to receive the damage because of vibrations are strikeed, make the deviation appear in the testing result.

Further, a spring washer is arranged between the bottom surface of the detector and the shell, and the spring washer is arranged on the threaded cylinder.

Among the above-mentioned technical scheme, through set up spring washer between detector bottom surface and shell, make every detector possess more reliable shock-proof impact's good performance.

Furthermore, the detector body sequentially comprises a front contact electrode, a substrate layer, a passivation layer and a back contact electrode from top to bottom, the front contact electrode forms a ring structure on the inner wall of the shielding shell and the edge of the inner surface of the ring structure covering the entrance window, the passivation layer is formed on the surface of the substrate layer, the back contact electrode covers the passivation layer and is in contact with the shielding shell, and the threaded cylinder is arranged on the back contact electrode.

Among the above-mentioned technical scheme, through the edge of front contact electrode at shielding shell inner wall and the partial ring structure internal surface of cover incidence window, form ring structure, the incidence window forms pn knot photosensitive area with the substrate layer, surveys the outside, and the passivation layer is silicon oxide medium passivation layer.

Compared with the prior art, the utility model provides a detector structure possesses following beneficial effect:

1. by adopting the assembling structure with honeycomb arrangement, the influence of assembling gaps on the efficiency of the detector can be reduced.

2. By filling the soft silica gel around the detector and arranging the spring washer between the bottom of the detector and the shell, the requirement of the detector on vibration and impact resistance is improved, and the situation that the detector is damaged due to vibration and impact and the detection result is deviated is avoided; through the nut and the joint with the threaded cylinder's interior external thread connection, fixed the detector, prevent that the detector from rocking at the detection in-process, damage when a certain detector in whole array detector, change is dismantled in realization that can be very convenient, has fine maintainability.

Drawings

FIG. 1 is a front schematic view of the present invention;

FIG. 2 is a schematic structural view of a side portion of the present invention;

fig. 3 is a schematic structural view of the back of the present invention.

The figure is marked with 1, a detector; 11. a probe body; 12. a circular groove; 13. a shield case; 14. an entrance window; 2. a housing; 3. a cover plate; 4. a through hole; 5. soft silica gel; 6. a threaded barrel; 7. a spring washer; 8. a nut; 9. a joint; 15. a front contact electrode; 16. a substrate layer; 17. a passivation layer; 18. the back surface contacts the electrode.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

referring to fig. 1 and 2, an embodiment of the present invention provides a detector structure, including a housing 2, the housing 2 is made of a metal shell made of 316L stainless steel, the stainless steel has advantages of good appearance gloss, excellent pitting corrosion resistance, excellent high temperature strength, weak magnetic property after processing, no magnetic property in a solid state, and the like, and can better satisfy harsh use environment, a plurality of detectors 1 arranged in an array are disposed in the housing 2, the detectors 1 are passivated and implanted with silicon semiconductor detectors, have good radiation protection performance, and can obtain better energy resolution, the detectors 1 include a detector body 11 and a shielding shell 13 covering the periphery of the detector body 11, the shielding shell 13 is made of aluminum, and has light weight and small volume, and can effectively reduce interference between the detector and an interface of a front-end circuit, the detector body 11 is a cylinder with a circular groove 12 on the top surface, an entrance window 14 with a smooth surface is arranged in the circular groove 12, the entrance window 14 forms a layer of smooth protection similar to a glass surface with an extremely thin (nm pole) through AI evaporation and Si oxide passivation, and is firm and durable, the detector 1 is not only protected, but also is convenient to clean and wipe, so that the problems of influence on measurement accuracy and the like caused by radioactive dust and radioactive liquid contamination are reduced and eliminated, the top surface of the shielding shell 13 is arranged at the periphery of the circular groove 12 of the detector body 11, the middle part of the shielding shell is of an annular structure, a threaded cylinder 6 with a threaded structure on the outer surface and the inner surface is arranged at the bottom of the detector body 11, the threaded cylinder 6 penetrates through the shielding shell 13 and the shell 2 and partially extends out of the shell 2, and the external threads of the threaded cylinder 6 extending out of the shell 2 are in threaded connection through a nut 8, the internal thread of the screw thread section of thick bamboo 6 that extends shell 2 passes through joint 9 threaded connection, joint 9 adopts Axial micro fat Femalle to connect, every connects and corresponds a detector unit, realize the power supply of detector 1, the output of ground connection and signal, through the nut 8 with connect 9 and the interior external screw thread connection of screw thread section of thick bamboo 6, fixed detector 1, prevent that detector 1 from rocking at the detection in-process, damage when a certain detector 1 in whole array detector 1, the change is dismantled in very convenient realization, have fine maintainability, through adopting the structure of assembling of honeycomb arrangement, can reduce the influence of assembling the clearance to detector 1 efficiency.

In this embodiment, still be provided with apron 3 on the shell 2, apron 3 also adopts 316L stainless steel material, shell 2 and apron 3 are through articulated swing joint, and shell 2 and the mode of apron 3 accessible joint are opened/closed, and not limited to this, be provided with a plurality of through-hole 4 on the apron 3, it is corresponding that through-hole 4 is array arrangement's detector 1 in with shell 2, detector 1 top surface just can be placed in through-hole 4 to expose every detector unit's top surface, bury every detector unit's edge part inside stainless steel shell 2 deeply simultaneously, possess very outstanding light-resistant effect, thereby do not let detector 1 arouse the weakening of detection performance by a wide margin because the light effect of side.

In this embodiment, a plurality of detector 1 all is provided with soft silica gel 5 all around, has promoted detector 1's shock-resistant vibrations requirement, avoids leading to detector 1 to receive the damage because vibrations are strikeed, makes the testing result deviate from appearing, soft silica gel 5 fills up 2 insides of shell and contacts with detector 1.

In the present embodiment, a spring washer 7 is disposed between the bottom surface of the probe 1 and the housing 2, so that each probe 1 has more reliable excellent performance of shock and impact resistance, and the spring washer 7 is disposed on the threaded cylinder 6.

In this embodiment, the detector body 11 includes, from top to bottom, a front contact electrode 15, a substrate layer 16, a passivation layer 17, and a back contact electrode 18 in sequence, the front contact electrode 15 forms an annular structure at an inner wall of the shielding shell 13 and an edge of an inner surface of a partial annular structure covering the entrance window 14, the entrance window 14 and the substrate layer 16 form a pn junction photosensitive region to detect the outside, the passivation layer 17 is formed on a surface of the substrate layer 16, the passivation layer 17 is a silicon oxide dielectric passivation layer, the back contact electrode 18 covers the passivation layer 17 and contacts the shielding shell 13, and the threaded cylinder 6 is disposed on the back contact electrode 18.

The utility model discloses an adopt the assembly structure of cellular arrangement, can reduce the influence of assembly clearance to detector 1 efficiency, through fill up soft silica gel 5 around detector 1, be provided with spring washer 7 between detector 1 bottom and shell 2, promoted the requirement of anti-vibration impact of detector 1, avoid because vibrations impact lead to detector 1 receive the damage, make the detection result appear the deviation; through the nut 8 and the joint 9 with the threaded cylinder 6 inside and outside threaded connection, fixed detector 1, prevent that detector 1 from rocking at the detection in-process, damage when a certain detector 1 in whole array detector 1, change is dismantled in realization that can be very convenient, has fine maintainability.

It should be noted that the above embodiments are only used for illustrating the technical solution of the present invention, and do not limit the protection scope of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from these embodiments without any inventive step, are within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still make no creative work on the condition of conflict, and make mutual combination, addition and deletion, or other adjustments according to the features in the embodiments of the present invention, thereby obtaining other technical solutions which are different and do not depart from the concept of the present invention, and these technical solutions also belong to the scope to be protected by the present invention.

Claims (5)

1. The utility model provides a detector structure, its characterized in that, includes shell (2), be provided with a plurality of detector (1) that are the array and arrange in shell (2), detector (1) is including detector body (11) and cover shielding shell (13) in detector body (11) periphery, detector body (11) are the cylinder that the top surface has circular recess (12), be provided with surperficial glossy incident window (14) in circular recess (12), the top surface setting of shielding shell (13) is at the periphery of detector body (11) circular recess (12), and the centre is the loop configuration, the bottom of detector body (11) is provided with the screw thread section of thick bamboo (6) that surface and internal surface all have the helicitic texture, screw thread section of thick bamboo (6) pierce through shielding shell (13) and shell (2) and partly extend outside shell (2), the external screw thread that extends the screw thread section of thick bamboo (6) of shell (2) carries out threaded connection through nut (8) And the internal thread of the thread cylinder (6) extending out of the shell (2) is installed in a matching way through a joint (9).

2. A detector structure according to claim 1, characterized in that a cover plate (3) is further disposed on the housing (2), the cover plate (3) is hinged to the housing (2), the cover plate (3) is provided with a plurality of through holes (4), the through holes (4) correspond to the detectors (1) arranged in the housing (2) in an array, and the top surfaces of the detectors (1) can be just placed in the through holes (4).

3. A detector structure according to claim 1, characterized in that a plurality of said detectors (1) are provided with a soft silica gel (5) all around, said soft silica gel (5) filling the inside of the housing (2) and contacting the detectors (1).

4. A probe structure according to claim 1, characterized in that a spring washer (7) is arranged between the bottom surface of the probe (1) and the housing (2), said spring washer (7) being arranged on the threaded cylinder (6).

5. A detector structure according to claim 1, characterized in that the detector body (11) is a front contact electrode (15), a substrate layer (16), a passivation layer (17) and a back contact electrode (18) from top to bottom, the front contact electrode (15) forms a ring structure on the inner wall of the shielding shell (13) and the edge of the inner surface of the ring structure covering the entrance window (14), the passivation layer (17) is formed on the surface of the substrate layer (16), the back contact electrode (18) is covered on the passivation layer (17) and contacts with the shielding shell (13), and the threaded cylinder (6) is arranged on the back contact electrode (18).

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