CN209928026U

CN209928026U - Radiation detection device

Info

Publication number: CN209928026U
Application number: CN201920310117.8U
Authority: CN
Inventors: 朱玉珍; 孙意成; 姜浩
Original assignee: Suzhou Ruipening Technology Co Ltd
Current assignee: Suzhou Ruipening Technology Co Ltd
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-01-10
Anticipated expiration: 2029-03-12

Abstract

The utility model provides a radiation detection device, including the detector shell, a detector, mainboard and handle, the detector includes intercoupling's scintillation crystal and photoelectric conversion device, mainboard and photoelectric conversion device communication connection, the mainboard all sets up in the detector shell with the detector, be provided with the battery compartment in the handle is connected with the detector shell to the handle, place the battery in the battery compartment, the battery is connected with the mainboard electricity, be provided with on the handle with battery compartment complex battery storehouse lid, be provided with the sleeve outside the handle, battery storehouse lid is located the sleeve and contradicts the sleeve inner wall. The utility model discloses still include adjustment mechanism and protection casing. The utility model is provided with a plurality of safeties, solves the problem that the battery and the battery compartment cover are easy to fall off, and is convenient to disassemble; the detection application range is wider, the detection effect is better, and the protective cover is not easy to lose.

Description

Radiation detection device

Technical Field

The utility model relates to a radiation detection technology field, more specifically relate to a radiation detection device for surveying alpha ray, beta ray.

Background

Ionizing radiation is a generic term for all radiation that can cause ionization of a substance, including alpha rays, beta rays, gamma rays, X rays, neutron rays, and the like. Ionizing radiation is divided into direct ionizing radiation and indirect ionizing radiation, wherein alpha rays, beta rays, protons and the like have charges and can directly cause substance ionization; x-rays, gamma photons, neutrons, and the like are not charged, but produce "secondary particles" when interacting with matter, thereby ionizing the matter. With the development of nuclear technology, the application of ionizing radiation in daily life is becoming more and more common, such as alpha and beta radioactive contamination of surfaces of workplaces, laboratories, hospitals, isotope production plants, work surfaces, floors, walls, hands, clothes, and the like. However, ionizing radiation, because it releases energy in human tissues, causes cell death, damage, and even transformation into cancer cells, thus becoming a stealth killer of many problematic diseases, and having great impact on human health. Therefore, ionizing radiation early warning can be carried out through ionizing radiation detection, and the harm of ionizing radiation to a human body is avoided or reduced.

In the prior art, instruments such as a surface contamination detector and the like are generally adopted to detect radiation of alpha rays and beta rays. In general, α and β surface contamination detectors require effective detection areas of not less than 60%, and therefore, the corresponding protective structures outside the detectors in the surface contamination detectors need to be in a grid form, and are not suitable to be formed as seamless protective surface structures, which further results in the risk of damage to the detectors by sharp objects when the surface contamination detectors are stored. To this problem, solve through increasing an extra airtight protection casing among the prior art usually, this protection casing can closely be fixed in order to play the guard action on the detection face that the detector corresponds, need get this protection casing when using the surface contamination detector, because the scope that usually needs to detect is very big, leads to having the problem that the protection casing was placed, was lost at will for the risk of damage appears again in the detector.

In addition, because alpha, beta surface contamination detector is hand-held type check out test set, mainly detects object surface, human body, often sets up to have certain angle with the handle when designing among the prior art and increases the use comfort level. However, due to the specificity of detection of α -rays and β -rays, testing is often performed in some special environments, such as gaps and corners between objects, in special narrow spaces, and at this time, because the angle of the handle of the surface contamination detector in the prior art is fixed and unadjustable, the area size of the detection surface and the angle between the detection surface and the handle cannot be flexibly changed, each corner cannot be effectively detected, the narrow space cannot be detected, and the application range and the detection effect of the instrument are greatly reduced.

Further, due to the specificity of radiation monitoring sites, surface contamination detectors often use batteries, which are typically designed into the handle, for power. The design scheme of the fixing mode of the battery compartment cover in the prior art is two: the first battery compartment cover structure fixed by screws has the defects that tools are needed when the batteries are replaced; the second is that adopt the fixed battery storehouse of buckle to the buckle replaces screw fixation, and the shortcoming of this mode is that battery storehouse lid and battery can drop by oneself and lose when equipment falls carelessly, has the use hidden danger.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a radiation detection device to solve above-mentioned at least one kind of problem.

In order to solve the technical problem, the technical scheme of the utility model is to provide a radiation detection device, radiation detection device includes detector shell, detector and mainboard, the detector includes intercoupling's scintillation crystal and photoelectric conversion device, the mainboard with photoelectric conversion device communication connection, the mainboard with the detector all set up in the detector shell, radiation detection device still includes the handle, the handle with the detector shell is connected, be provided with the battery compartment in hand, place the battery in the battery compartment, the battery with the mainboard electricity is connected, be provided with on hand with battery compartment complex battery compartment cover, the handle is provided with the sleeve outward, battery compartment cover is located just contradict in the sleeve telescopic inner wall.

According to an embodiment of the present invention, the scintillation crystal is a plastic scintillator.

According to the utility model discloses an embodiment, the both sides that the scintillation crystal is relative all couple photoelectric conversion device, photoelectric conversion device respectively with mainboard communication connection.

According to the utility model discloses an embodiment, be provided with the screw thread on the outer wall of handle, be provided with the screw thread on the inner wall of sleeve one end, the handle with the sleeve is connected through the screw thread that matches.

According to the utility model discloses an embodiment, telescopic other end is provided with the sleeve through-hole, be provided with the connector in the sleeve through-hole, the connector with mainboard communication connection.

According to the utility model discloses an embodiment, the handle with be connected through adjustment mechanism between the detector shell, the handle is in under the adjustment mechanism effect around the detector shell rotates.

According to the utility model discloses an embodiment, adjustment mechanism includes: the detector comprises a rotating shaft seat, a rotating shaft, an adjusting shell, a spring and an adjusting button, wherein the rotating shaft seat is arranged on the detector shell; the rotating shaft is arranged on two opposite side surfaces of the rotating shaft seat; the adjusting shell is matched with the rotating shaft, and the rotating shaft seat is accommodated in the adjusting shell; the spring set up in adjust the button with between the pivot, adjust the button with the pivot joint cooperation.

According to the utility model discloses an embodiment, the handle includes interconnect's upper cover of the handle and handle lower cover, cover on the handle and be provided with the upper cover breach, the battery compartment lid with the cooperation of upper cover breach joint.

According to the utility model discloses an embodiment, adjust the shell including adjusting the upper cover and adjusting the lower cover, adjust the upper cover with it is provided with the breach to adjust the lower cover butt joint department, the pivot holding in the breach.

According to the utility model discloses an embodiment, adjust the upper cover with handle upper cover integrated into one piece, adjust the lower cover with handle lower cover integrated into one piece.

According to the utility model discloses an embodiment, the detector shell is including enclosing into box-like space's detector upper cover and detector lower cover, the detector lower cover is latticed.

According to the utility model discloses an embodiment, radiation detection device still includes the protection casing, protection casing detachably is fixed in on the detector shell and cladding the detector lower cover.

According to the utility model discloses an embodiment, be provided with magnet or soft-magnetic in the protection casing, be provided with magnet on the detector shell.

The utility model also provides a radiation detection device, which comprises a detector shell, a detector, a main board and a handle, wherein the detector comprises a scintillation crystal and a photoelectric conversion device which are coupled with each other; the mainboard is in communication connection with the photoelectric conversion device, and the mainboard and the detector are both arranged in the detector shell; the handle with the detector shell is connected, be provided with the battery compartment in the handle, place the battery in the battery compartment, the battery with the mainboard electricity is connected, be provided with on hand with battery compartment complex battery compartment lid, the handle pass through adjustment mechanism with the detector shell is connected, the handle is in around under the adjustment mechanism effect the detector shell rotates.

The utility model also provides a radiation detection device, which comprises a detector shell, a detector, a main board, a handle and a protective cover, wherein a magnet is arranged in the detector shell; the detector comprises a scintillation crystal and a photoelectric conversion device which are coupled with each other; the mainboard is in communication connection with the photoelectric conversion device, and the mainboard and the detector are both arranged in the detector shell; the handle is connected with the detector shell, a battery bin is arranged in the handle, a battery is placed in the battery bin, the battery is electrically connected with the mainboard, and a battery bin cover matched with the battery bin is arranged on the handle; the protective cover is detachably fixed on the detector shell, and a magnet or soft magnetism is arranged in the protective cover.

The utility model provides a radiation detection device adopts the mode of battery storehouse lid cooperation enclosing cover, sets up multichannel insurance, the effectual problem of having solved battery, battery storehouse lid and easily coming off, only needs the rotation to take off the sleeve when taking out the battery, presses the battery storehouse lid downwards again, outwards pushes away again and can take out, need not with the help of the instrument, and is very convenient. The utility model provides a radiation detection device when surveying when having the narrow space of sheltering from the thing all around, can adjust the contained angle of handle and detection face, for example the adjustment is 90 degrees or 180 degrees to effectual every corner that detects, application scope is wider, and the detection effect is better. Additionally, the utility model provides a radiation detection device has solved the difficult fixed and easy problem of losing of protection casing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is an exploded schematic view of a radiation detection device according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the adjustment mechanism and handle of the radiation detection device according to FIG. 1;

FIG. 3 is an exploded schematic view of another angle of a detection mechanism of the radiation detection device of FIG. 1;

fig. 4 is an exploded schematic view of a detection mechanism of a radiation detection apparatus according to another embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific embodiments. It should be understood that the following examples are illustrative of the present invention only and are not intended to limit the scope of the present invention.

It will be understood that when an element/feature is referred to as being "disposed on" another element/feature, it can be directly on the other element/feature or intervening elements/features may also be present. When a component/part is referred to as being "connected/coupled" to another component/part, it can be directly connected/coupled to the other component/part or intervening components/parts may also be present. The term "connected/coupled" as used herein may include electrical and/or mechanical physical connections/couplings. The term "comprises/comprising" as used herein refers to the presence of features, steps or components/features, but does not preclude the presence or addition of one or more other features, steps or components/features. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In addition, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and to distinguish similar objects, and there is no order of precedence between the two, and no indication or implication of relative importance is to be inferred. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

Fig. 1 is an exploded schematic view of a radiation detection device according to an embodiment of the present invention, and as can be seen from fig. 1, the present invention provides a radiation detection device including a detector housing, a detector, a main board, and a handle, wherein the detector housing includes a detector upper cover 10 and a detector lower cover 20, and the detector upper cover 10 and the detector lower cover 20 form a box-shaped space; the detector 30 and the mainboard 40 are accommodated in the box-shaped space, and the detector 30 is in communication connection with the mainboard 40; the handle 50 is connected with the detector shell through an adjusting mechanism 60, the handle 50 is in a handle shape, a battery chamber 53 is arranged in the handle 50, a battery 55 is arranged in the battery chamber 53, the battery 55 is electrically connected with the main board 40, an indicating lamp hole 59 is further arranged on the handle 50, an indicating lamp 510 is arranged in the indicating lamp hole 59, and the indicating lamp 510 is in communication connection with the main board 40.

Further, in the embodiment of fig. 1, the main body of the upper probe cover 10 is box-shaped, and one side of the upper probe cover 10 has an opening which matches the shape of the lower probe cover 20, so that the upper probe cover 10 and the lower probe cover 20 can enclose a hollow box-shaped space; the inside of the probe 10 has a plurality of bolt hole seats 11 (fig. 3) designed as required, the bolt hole seats 11 are provided with bolt holes, and the probe lower cover 20 is also provided with corresponding bolt holes 22, so that the probe upper cover 10 and the probe lower cover 20 can be fixed together by fastening bolts in the corresponding bolt holes. The number, shape and other designs of the bolt hole bases 11 belong to the means commonly used by those skilled in the art, and are not described herein.

In the embodiment of fig. 1, the overall shape of the lower probe cover 20 is a plate shape, and a plurality of holes are distributed on the plate-shaped body of the lower probe cover 20, so that the body of the lower probe cover 20 is formed in a grid plate shape; the area size and shape of the holes may be the same or different, and are not limited herein, and the extending direction of the holes is perpendicular to the plane of the main body of the lower cover 20 of the detector; the total area of the holes is not less than 60% of the surface area of the scintillation crystal of the detector 30.

In the embodiment of fig. 1, the detector 30 may include a scintillation crystal (not shown) and a photoelectric conversion device (not shown), the scintillation crystal may convert the received high-energy α and β -ray photons into visible light photons, the photoelectric conversion device is coupled to the scintillation crystal, the photoelectric conversion device may convert the visible light photons into an electrical signal, and the photoelectric conversion device is in communication connection with the motherboard, so as to send the electrical signal to the motherboard for data processing. The scintillation crystal is preferably a plastic scintillator, thereby reducing the volume and weight of the device; the scintillation crystal can also be sodium iodide (NaI) crystal, yttrium lutetium silicate (LYSO) crystal, Lutetium Silicate (LSO) crystal, Yttrium Silicate (YSO) crystal, cesium iodide (CsI) crystal, etc.; the scintillation crystal can be formed as a scintillation crystal array coupled by a number of scintillation crystal strips or as individual scintillation crystal blocks. The photoelectric conversion device is preferably a SiPM (silicon photomultiplier), A Photodiode (APD), or a photomultiplier tube (PMT).

According to an embodiment of the present invention, the detector 30 may further include a light guide, the light guide is disposed between the photoelectric conversion device and the scintillation crystal and coupled with the photoelectric conversion device and the scintillation crystal respectively, and the light guide is used for conducting visible light photons and may improve the quality of the collected visible light photons.

According to the utility model discloses a further embodiment, detector 30 includes two photoelectric conversion devices, and photoelectric conversion device is coupled respectively to the both sides that same scintillation crystal is relative, and photoelectric conversion device reads out the signal of telecommunication of conversion simultaneously with the mainboard connection respectively to can increase the degree of consistency that the photon count distributes, improve alpha, beta ray's detection efficiency.

In the embodiment of fig. 1, the main board 40 is preferably an FPGA (field programmable gate array) or an MCU (micro program controller), and the main board 40 may include a preamplifier, a main amplifier, a time detection circuit, an energy detection circuit, and the like, so as to collect the electrical signals from the photoelectric conversion device and calculate the energy information of the corresponding α and β ray photons in the electrical signals.

In the embodiment of fig. 1, the radiation detection device provided by the utility model can also include the protection casing 80, and the protection casing 80 sets up in the detector lower cover 20 outside and cooperates with detector lower cover 20 or detector upper cover 10, and the protection casing 80 covers the detector lower cover 20 on the whole so that when depositing dust or foreign matter etc. can not get into the hole of detector lower cover 20 and pollute or damage the detector. It should be noted that, in an embodiment of the present invention, the protection cover 80 may be directly clamped and fixed in the groove at the edge of the upper cover 10 of the detector, or the protection cover 80 may be directly sleeved outside the detector, and will not be described herein.

Fig. 2 is an exploded view of the adjustment mechanism 60 and the handle 50 of the radiation detection device of fig. 1, as can be seen from fig. 1 in conjunction with fig. 2, the handle 50 includes an upper handle cover 51, a lower handle cover 52, a battery compartment 53 and a battery compartment cover 54, wherein the upper handle cover 51 and the lower handle cover 52 enclose a hollow cylindrical handle shape, and the upper handle cover 51 and the lower handle cover 52 are fixed by bolts; the handle upper cover 51 is provided with an upper cover notch 511, and the upper cover notch 511 is communicated with the second space 512 inside the handle, so that the battery 55 can be loaded or taken out through the upper cover notch 511; the upper cover notch 511 is detachably matched with the battery compartment cover 54, and the battery compartment cover 54 is provided with a clamping part 541 matched with the upper cover notch 511, so that the battery compartment cover 54 can be clamped at the upper cover notch 511 to realize the detachable matching of the battery compartment cover and the upper cover notch 511. The battery compartment 53 has a positive terminal 531 and a negative terminal 532 disposed opposite to each other, and the battery 55 is accommodated in the battery compartment 53 and connected to the positive electrode and the negative electrode, respectively; the battery compartment 53 is further provided with a fixing bolt hole 533, and the battery compartment 55 is fixed in the first space 521 of the handle lower cover 52 through the cooperation of the bolt and the fixing bolt hole 533. The positive electrode and the negative electrode of the battery are respectively connected to the main board through wires (not shown), which are commonly used by those skilled in the art and will not be described herein. It should be noted that the utility model provides a handle 50 can also include sleeve 57, and sleeve 57 is cylindricly, and one end 571 of sleeve 57 has the opening, and the opening inboard is provided with the screw thread, is provided with corresponding screw thread 56 on upper handle cover 51 and the lower handle cover 52 to make sleeve 57 can locate the outside of handle 50 through threaded connection cover, sleeve 57 compresses tightly battery compartment cover 54, can prevent not falling off of battery and battery compartment cover when not falling very much. The other end of the sleeve 57 is provided with a sleeve through hole 572, a connector 58 is arranged in the sleeve through hole 572, and the connector 58 is connected with the main board 40 so as to connect the information collected by the detector with other external devices (such as a host). Further, in order to increase the comfort level of the grip test, the outer side of the sleeve 57 may be provided with a protruding point or a cushion layer for facilitating the grip, which is not described herein again.

Further, in FIG. 2, the handle 50 is connected to the sonde housing by an adjustment mechanism 60. The adjusting mechanism 60 comprises a rotating shaft seat 63, an adjusting button 64, a spring 65, a rotating shaft 66 and an adjusting shell, wherein the adjusting shell comprises an adjusting upper cover 61 and an adjusting lower cover 62, the adjusting upper cover 61 and the adjusting lower cover 62 are basically symmetrically arranged and have basically the same shape, a third space 611 is arranged on the adjusting upper cover 61, the third space 611 divides the adjusting upper cover 61 into two opposite parts, a groove 612 matched with the shape of the rotating shaft 66 is arranged on the two opposite parts, and the third space 611 is used for placing the rotating shaft seat 63; similarly, the lower adjusting cover 62 has a fourth space 621, the fourth space 621 divides the lower adjusting cover 62 into two opposite parts, the two opposite parts have grooves matching with the shape of the rotating shaft 66, and the fourth space 621 is used for placing the rotating shaft seat 63; the shape of the rotating shaft seat 63 is similar to a hollow cylinder, the rotating shaft 66 is arranged on two opposite side surfaces of the rotating shaft seat 63, and the rotating shaft 66 is clamped in a circular space surrounded by the grooves on the adjusting upper cover 61 and the adjusting lower cover 62, so that when the adjusting upper cover 61 and the adjusting lower cover 62 are installed together, the rotating shaft seat 63 is accommodated in the third space 611 and the fourth space 621, and the adjusting shell can rotate around the rotating shaft 66. Further, the rotating shaft 66 is sleeved with a spring 65, one end of the spring 65 abuts against the side face of the rotating shaft seat 63, the other end of the spring 65 abuts against the adjusting key 64, a mechanism matched with the rotating shaft 66 in a clamping mode is arranged on the adjusting key 64, when the adjusting key 64 is pressed down, the clamping mechanism is released, the adjusting shell can freely rotate around the rotating shaft 66, after the adjusting key 64 is loosened, the spring 65 pushes the adjusting key 64 away from the rotating shaft 66 in the direction away from the rotating shaft, the clamping mechanism clamps the rotating shaft 66, and at the moment, the adjusting shell cannot continue to rotate. It should be noted that in the embodiment of fig. 2, the upper adjustment cover 61 and the lower adjustment cover 62 are integrally formed with the upper handle cover 51 and the lower handle cover 52, respectively, so as to connect the handle 50 to the detector housing through the adjustment mechanism 60, and the handle 50 can be rotated simultaneously with the adjustment of the detector housing, so as to adjust different angles of the handle relative to the detector housing. In addition, in the embodiment of fig. 2, a cover plate 21 is further disposed on a side of the lower cover 20 close to the handle, and the cover plate 21 is used to form a closed space together with the adjusting outer cover to prevent contaminants such as dust from entering the inside of the device and affecting the use of the device, which is not described herein again.

Fig. 4 is an exploded schematic view of a detection mechanism of a radiation detection device according to another embodiment of the present invention, in the embodiment of fig. 4, a detector lower cover 20, a detector 30, a main board 40, an adjustment mechanism, etc. are all the same as those in the above embodiments, except that a plurality of magnets 12 are disposed on a detector upper cover 10, the magnets 12 may be embedded inside a box space formed by the detector upper cover 10, and the magnets 12 may also be disposed inside a cover body when the detector upper cover 10 is manufactured. The magnet 81 is also provided on the inner side of the shield 80, or the magnet 81 may be provided inside the shield 80 when the shield is manufactured. When using the utility model provides a radiation detection device, take off protection casing 80, put the back at detector upper cover 10, magnet 12 in the detector upper cover 10 and the powerful attraction of magnet 81 in the protection casing 80 this moment, can be so that the firm surface that is fixed in detector upper cover 10 of protection casing 80 moves along with the detector when carrying out radiation detection, when surveying the end, take off protection casing 80, with the protection casing install back detector lower cover 20 department again can to the loss of prevention protection casing 80 that can be fine.

The radiation detection device provided by the utility model is especially suitable for detecting surface pollution of alpha, beta and other rays in a handheld mode, mainly detects the surface of an object and the surface of a human body, and the adjusting mechanism is arranged between the handle and the shell of the detector, so that a certain angle is formed between the handheld handle and the detection surface during detection, for example, when a plane with spaciousness and no obstruction is detected, the angle between the handle and the detection surface is adjusted to be about 30 degrees, and the comfort level of hand holding can be the highest and the detection efficiency is the highest; when detecting a narrow space with a shielding object around, the included angle between the handle and the detection surface can be adjusted to 90 degrees or 180 degrees, so that each corner can be effectively detected.

The utility model provides a radiation detection device adopts the mode of battery storehouse lid cooperation enclosing cover, sets up multichannel insurance, the effectual problem of having solved battery, battery storehouse lid and easily coming off, only needs the rotation to take off the sleeve when taking out the battery, presses the battery storehouse lid downwards again, outwards pushes away again and can take out, need not with the help of the instrument, and is very convenient. The utility model provides a radiation detection device through set up corresponding magnet on detector shell and protective cover, can put the problem that prevents to take off and abandon at will behind the protective cover, prevents that the part from losing and causing the detector to damage.

What has been described above is only the preferred embodiment of the present invention, not for limiting the scope of the present invention, but various changes can be made to the above-mentioned embodiment of the present invention. All the simple and equivalent changes and modifications made according to the claims and the content of the specification of the present invention fall within the scope of the claims of the present invention. The present invention is not described in detail in the conventional technical content.

Claims

1. A radiation detection device, radiation detection device includes detector shell, detector and mainboard, the detector includes intercoupled scintillation crystal and photoelectric conversion device, the mainboard with photoelectric conversion device communication connection, the mainboard with the detector all set up in the detector shell, its characterized in that, radiation detection device still includes:

the handle, the handle with the detector shell is connected, be provided with the battery compartment in the handle, place the battery in the battery compartment, the battery with the mainboard electricity is connected, be provided with on hand with battery compartment complex battery storehouse lid, be provided with the sleeve outside the handle, battery storehouse lid is located just contradict in the sleeve telescopic inner wall.

2. The radiation detection apparatus as recited in claim 1, wherein the scintillation crystal is a plastic scintillator.

3. The radiation detection apparatus as recited in claim 1, wherein the handle is threaded on an outer wall of the handle and the sleeve is threaded on an inner wall of the sleeve at one end of the sleeve, the handle and the sleeve being connected by mating threads.

4. The radiation detection apparatus as recited in claim 1, wherein the handle is coupled to the detector housing via an adjustment mechanism, the handle being rotatable about the detector housing by the adjustment mechanism.

5. The radiation detection apparatus of claim 4, wherein the adjustment mechanism comprises:

the rotating shaft seat is arranged on the detector shell;

the rotating shafts are arranged on two opposite side surfaces of the rotating shaft seat;

the adjusting shell is matched with the rotating shaft, and the rotating shaft seat is contained in the adjusting shell;

a spring; and

the adjusting button, the spring set up in adjust the button with between the pivot, adjust the button with the cooperation of pivot joint.

6. The radiation detection device of claim 5, wherein the handle comprises an upper handle cover and a lower handle cover connected to each other, an upper cover notch is formed in the upper handle cover, and the battery compartment cover is in clamping fit with the upper cover notch.

7. The radiation detection apparatus as claimed in claim 6, wherein the adjustment housing comprises an upper adjustment cover and a lower adjustment cover, a gap is provided at a joint of the upper adjustment cover and the lower adjustment cover, and the rotation shaft is accommodated in the gap.

8. The radiation detection apparatus as recited in claim 7, wherein the adjustment upper cover is integrally formed with the handle upper cover, and the adjustment lower cover is integrally formed with the handle lower cover.

9. The radiation detection apparatus as claimed in claim 1, wherein the detector housing comprises an upper detector cover and a lower detector cover enclosing a box-shaped space, and the lower detector cover is in a grid shape.

10. The radiation detection apparatus as recited in claim 9, further comprising a protective cover removably secured to the detector housing and covering the detector lower cover.

11. The radiation detection apparatus as recited in claim 10, wherein a magnet or soft magnet is disposed within the shield and a magnet is disposed on the detector housing.