CN219266538U

CN219266538U - SiPM-based personal dosage instrument

Info

Publication number: CN219266538U
Application number: CN202320749154.5U
Authority: CN
Inventors: 张丽梅
Original assignee: Hangzhou Miheng Technology Co ltd
Current assignee: Hangzhou Miheng Technology Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-06-27
Anticipated expiration: 2033-04-07

Abstract

The utility model relates to a personal dosage instrument based on SiPM, which comprises a bottom cover, wherein an upper cover is fixedly arranged on the upper end surface of the bottom cover, a mounting cavity is formed inside the bottom cover after the upper cover and the bottom cover are mounted, four groups of support columns are uniformly and fixedly arranged on the lower end surface in the mounting cavity, a mounting plate is arranged on the support columns, through holes are formed in the mounting plate corresponding to the positions of the four groups of support columns, the mounting plate is detachably connected with the support columns through bolts in the through holes, a numerical display screen is arranged on the upper end surface of the mounting plate, a key board is arranged below the numerical display screen, a design of a silicon photomultiplier is arranged, an electric signal generated when the geiger is induced to ionizing radiation can be amplified, the sensing of the device is more sensitive, the interference of electromagnetic signals around an inductor on sensing numerical values can be avoided, a geiger tube protecting shell is arranged, the damage caused by the exposed and mounted geiger in the using process is avoided, and the service life of equipment is prolonged.

Description

SiPM-based personal dosage instrument

Technical Field

The present utility model relates to the field of radiation dose instruments, and more particularly to a SiPM-based personal dose instrument.

Background

Geiger-mueller counter (Geiger counter), a counter instrument that specifically detects the intensity of ionizing radiation (alpha particles, beta particles, gamma rays, and X rays). When the voltage applied to the probe reaches a certain range, the radiation generates a pair of ions in the tube, and the electric pulse with the same size can be amplified and generated and recorded by the connected electronic device, so that the number of the radiation in unit time is measured.

The utility model provides a new solution to the problem that the existing Geiger counter mostly adopts a single silicon diode as a personal dosimeter of the sensor, and has the defects of low sensitivity, extremely easy interference of photoelectric gain, good shielding during design, and multiple naked installation of the Geiger tube in the Geiger counter, wherein when the voltage applied to the probe reaches a certain range, a pair of ions are generated by rays in the tube after ionization, and an electric pulse with the same size can be amplified and generated and recorded by an electronic device connected with the electric pulse, so that the number of rays in unit time is measured.

Disclosure of Invention

In view of the problems in the prior art, it is an object of the present utility model to provide a SiPM-based personal dosing instrument that solves the technical problems mentioned in the background art.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a personal dosage instrument based on SiPM, includes the bottom, bottom up end fixed mounting has the upper cover, and the upper cover is inside to form the installation cavity with the bottom after accomplishing the installation, and terminal surface evenly distributed fixed mounting has four groups support columns under the installation cavity, installs the mounting panel on the support column, and the through-hole has been seted up to the position that corresponds four groups support columns on the mounting panel, and the mounting panel can be dismantled with the support column through using the bolt in the through-hole to be connected, and the mounting panel up end is provided with the numerical display screen, and the numerical display screen below is provided with the keypad.

Preferably, the terminal surface fixed mounting has the circuit board under the mounting panel, and one side is provided with the geiger tube protective housing on the circuit board, is provided with the geiger tube in the geiger tube protective housing, and the electrode of geiger tube both ends is passed the geiger tube protective housing both sides terminal surface and is extended to the geiger tube protective housing outside, and the position that corresponds the geiger tube electrode on the circuit board is provided with the junction clip, is provided with the master control treater on the circuit board, master control treater and junction clip electric connection, is provided with the silicon photomultiplier between the junction clip of master control treater and the corresponding geiger tube output electrode.

In any of the above schemes, preferably, the geiger tube protection shell is composed of a bottom shell and an upper shell, and the bottom shell and the upper shell are detachably mounted through bolts.

In any of the above aspects, preferably, a buffer layer is provided between the geiger tube and the geiger tube protective shell.

In any of the above schemes, preferably, a battery compartment is disposed on the inner lower end surface of the mounting cavity, a battery cover is disposed on the lower end surface of the bottom cover, and a mounting clip is disposed on the lower end surface of the bottom cover.

In any of the above schemes, preferably, a display screen mounting opening is formed in a position of the upper cover corresponding to the numerical display screen, and a key mounting opening is formed in a position of the upper cover corresponding to the key board.

Compared with the prior art, the utility model has the advantages that:

the design of the silicon photomultiplier is arranged in the utility model, so that the electric signal generated when the geiger tube senses the ionizing radiation can be amplified, the induction of the device is more sensitive, the interference of electromagnetic signals around the inductor to induction values is avoided, meanwhile, the geiger tube protective shell is arranged, the damage caused by the exposure and installation of the geiger tube in the use process is avoided, and the service life of equipment is prolonged.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an SiPM-based personal dosage instrument of the present utility model;

FIG. 2 is a schematic view of the disassembled structure of the present utility model;

FIG. 3 is a schematic diagram of a circuit board structure;

FIG. 4 is a schematic diagram of a geiger tube structure;

fig. 5 is a schematic view of the bottom cover structure.

The reference numerals in the figures illustrate:

1. a bottom cover; 2. an upper cover; 3. a mounting cavity; 4. a support column; 5. a mounting plate; 6. a numerical display screen; 7. a key sheet; 8. a circuit board; 9. a geiger tube protective shell; 901. a bottom case; 902. an upper case; 10. a geiger tube; 11. a connecting clip; 12. a master control processor; 13. a silicon photomultiplier; 14. a buffer layer; 15. a battery compartment; 16. a battery cover; 17. a mounting clip; 18. a display screen mounting port; 19. and a key installation port.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Examples:

referring to fig. 1 to 5, an SiPM-based personal dosage apparatus includes a bottom cover 1, an upper cover 2 is fixedly mounted on an upper end surface of the bottom cover 1, an installation cavity 3 is formed inside the installation cavity after the upper cover 2 and the bottom cover 1 are installed, four groups of support columns 4 are uniformly distributed and fixedly mounted on a lower end surface of the installation cavity 3, a mounting plate 5 is mounted on the support columns 4, through holes are formed in positions, corresponding to the four groups of support columns 4, on the mounting plate 5, the mounting plate 5 is detachably connected with the support columns 4 by using bolts in the through holes, a numerical display screen 6 is arranged on an upper end surface of the mounting plate 5, and a key board 7 is arranged below the numerical display screen 6.

In this embodiment, the lower end surface of the mounting plate 5 is fixedly provided with a circuit board 8, one side of the circuit board 8 is provided with a plastic tube protecting shell 9, a plastic tube 10 is arranged in the plastic tube protecting shell 9, electrodes at two ends of the plastic tube 10 penetrate through the end surfaces at two sides of the plastic tube protecting shell 9 and extend out of the plastic tube protecting shell 9, a connecting clamp 11 is arranged at the position, corresponding to the electrodes of the plastic tube 10, on the circuit board 8, of the circuit board 8, a main control processor 12 is arranged on the circuit board 8, the main control processor 12 is electrically connected with the connecting clamp 11, and a silicon photomultiplier 13 is arranged between the main control processor 12 and the connecting clamp 11, corresponding to the output electrodes of the plastic tube 10.

In this embodiment, the geiger tube protection shell 9 is composed of a bottom shell 901 and an upper shell 902, and the bottom shell 901 and the upper shell 902 are detachably mounted by bolts.

In this embodiment, a buffer layer 14 is provided between the geiger tube 10 and the geiger tube protective shell 9.

In this embodiment, a battery compartment 15 is disposed on the inner lower end surface of the mounting cavity 3, a battery cover 16 is disposed on the lower end surface of the bottom cover 1, and a mounting clip 17 is disposed on the lower end surface of the bottom cover 1.

In this embodiment, a display screen mounting opening 18 is formed at a position of the upper cover 2 corresponding to the numerical display screen 6, and a key mounting opening 19 is formed at a position of the upper cover 2 corresponding to the key board 7.

The working process of the utility model is as follows:

when the geiger tube 10 senses surrounding ionizing radiation, an electric signal is sent out to be amplified through the silicon photomultiplier 13 and then sent to the main control processor 12, and the design of the silicon photomultiplier 13 can amplify the electric signal generated when the geiger tube 10 senses the ionizing radiation, so that the radiation induction of the device is more sensitive, interference to induction values due to electromagnetic signals around the geiger tube 10 is avoided, further, the sensing of the more tiny ionizing radiation is avoided, meanwhile, the mounting plate 5 is mounted on the support column 4 through bolts, and the geiger tube protective shell 9 is mounted around the geiger tube, so that the geiger tube 10 is not easy to damage when in use, and the service life of equipment is prolonged.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. SiPM-based personal dosing instrument comprising a bottom cover (1), characterized in that: the utility model discloses a novel waterproof and waterproof integrated circuit board, including bottom (1), upper cover (1), mounting cavity (3), mounting panel (5), through-hole has been seted up to the position that corresponds four sets of support columns (4) on mounting panel (5), mounting panel (5) can dismantle with support column (4) through using the bolt in the through-hole, mounting panel (5) up end is provided with numerical display (6), numerical display (6) below is provided with keypad (7), mounting panel (1) up end fixed mounting has upper cover (2), inside formation installation cavity (3) after upper cover (2) and bottom (1) are installed.

2. A SiPM-based personal dosage instrument as defined in claim 1, wherein: the utility model discloses a solar cell module, including mounting panel (5), terminal surface fixed mounting has circuit board (8) under, one side is provided with plastic tube protective housing (9) on circuit board (8), be provided with plastic tube (10) in plastic tube protective housing (9), plastic tube (10) both ends electrode is passed plastic tube protective housing (9) both sides terminal surface and is extended to outside plastic tube protective housing (9), the position of corresponding plastic tube (10) electrode on circuit board (8) is provided with connecting clamp (11), be provided with master control processor (12) on circuit board (8), master control processor (12) and connecting clamp (11) electric connection, be provided with silicon photomultiplier (13) between master control processor (12) and connecting clamp (11) of corresponding plastic tube (10) output electrode.

3. A SiPM-based personal dosage instrument as defined in claim 2, wherein: the plastic pipe protective shell (9) consists of a bottom shell (901) and an upper shell (902), and the bottom shell (901) and the upper shell (902) are detachably mounted through bolts.

4. A SiPM-based personal dosage instrument as defined in claim 2, wherein: a buffer layer (14) is arranged between the geiger tube (10) and the geiger tube protective shell (9).

5. A SiPM-based personal dosage instrument as defined in claim 1, wherein: the battery box is characterized in that a battery bin (15) is arranged on the inner lower end face of the mounting cavity (3), a battery cover (16) is arranged on the lower end face of the bottom cover (1), and a mounting clamp (17) is arranged on the lower end face of the bottom cover (1).

6. A SiPM-based personal dosage instrument as defined in claim 1, wherein: the upper cover (2) is provided with a display screen mounting opening (18) corresponding to the position of the numerical display screen (6), and the upper cover (2) is provided with a key mounting opening (19) corresponding to the position of the key board (7).