CN210136312U - Photomultiplier detection device - Google Patents
Photomultiplier detection device Download PDFInfo
- Publication number
- CN210136312U CN210136312U CN201920486410.XU CN201920486410U CN210136312U CN 210136312 U CN210136312 U CN 210136312U CN 201920486410 U CN201920486410 U CN 201920486410U CN 210136312 U CN210136312 U CN 210136312U
- Authority
- CN
- China
- Prior art keywords
- probe
- detection device
- photomultiplier
- vertical plate
- gamma
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Radiation (AREA)
Abstract
The utility model discloses a photomultiplier detection device, including test box, density electron appearance, teletransmission gamma nipple joint, simulator, test rack and computer, be provided with gamma scale source and probe in the test box, the probe is used for detecting gamma scale source and passes through density electron appearance, teletransmission gamma nipple joint, simulator, test rack and computer connection in proper order. The utility model discloses small and exquisite exquisiteness, portable, high-efficient swift, powerful.
Description
Technical Field
The utility model belongs to the technical field of detecting instrument, concretely relates to photomultiplier detection device.
Background
The temperature characteristic and relevant electrical parameters of the photomultiplier directly relate to the quality of logging data. Because the photomultiplier in the lithology density instrument works under the well with the depth of 3000 meters to 5000 meters, for the new photomultiplier and the photomultiplier which uses dozens of wells, whether the photomultiplier works normally under the high temperature of the well can not be judged even if the ground works normally at normal temperature.
Various quality and safety risks can occur in this state:
1. the measured lithologic density pe value and density value have large difference with the actual value of the stratum.
2. The failure of logging results in secondary source loading, safety risk is increased, and logging cost is increased.
3. The new photomultiplier can not be accurately checked, so that the quality exceeding pipes are applied to instruments, and logging risks and cost waste are caused.
At present, no more efficient and practical solution and detection device exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed at, provide a photomultiplier detection device, can the accurate photomultiplier performance of judging good and bad, be a high-efficient portable, economical and practical's detection device, effectively solved the difficult problem that photomultiplier performance was judged, filled the vacancy in this professional photomultiplier quality testing field.
The utility model adopts the following technical scheme:
the utility model provides a photomultiplier detection device, includes test box, density electron appearance, teletransmission gamma nipple joint, simulator, test rack and computer, is provided with gamma scale source and probe in the test box, and the probe is used for detecting gamma scale source and passes through density electron appearance, teletransmission gamma nipple joint, simulator, test rack in proper order and be connected with the computer.
Specifically, be provided with the scale source constant head tank that is used for placing gamma scale source in the test box, the left and right sides correspondence of scale source constant head tank is provided with first probe and second probe, is provided with the circuit board in one side of first probe, scale source constant head tank and second probe, is provided with amplifier circuit on the circuit board, and first probe and second probe are connected with amplifier circuit respectively, and amplifier circuit is connected with the density electron appearance through the circuit.
Furthermore, a first positioning cylinder and a second positioning cylinder are correspondingly arranged between the first probe and the scale source positioning groove, the first positioning cylinder is connected with the first probe, and the second positioning cylinder is connected with the second probe.
Furthermore, a first wiring terminal and a second wiring terminal are arranged in the test box, the first wiring terminal and the second wiring terminal are correspondingly arranged among the first probe, the second probe and the circuit board, the first probe is movably connected with the circuit board through the first wiring terminal, and the second probe is movably connected with the circuit board through the second wiring terminal.
Furthermore, the circuit board is arranged on the framework mounting block, and a framework positioning block is arranged on one side of the framework mounting block.
Furthermore, the first probe and the second probe are composed of sodium iodide crystals and photomultiplier tubes, the energy spectrum of the gamma rays received by the first probe is 150 KeV-450 KvV, and the energy spectrum of the gamma rays received by the second probe is 60 KeV-549 KvV.
The testing box comprises a lower plate, a first side vertical plate, a second side vertical plate, a front vertical plate, a rear vertical plate and a cover plate, wherein the front vertical plate, the first side vertical plate, the rear vertical plate and the second side vertical plate are sequentially connected end to form a rectangular frame structure, the lower plate and the cover plate are correspondingly arranged on the upper portion and the lower portion of the frame structure to form a box body structure, a scale source positioning groove, a framework mounting block, a first probe and a second probe are respectively arranged on the lower plate, and a bottom angle used for supporting is arranged at the bottom of the lower plate.
Furthermore, a fixed seat is arranged on the front vertical plate, a second connector is installed on the fixed seat, one end of the second connector is connected with the circuit board, and the other end of the second connector is connected with the density electronic instrument through a flexible connecting line and the first connector.
Specifically, the test cartridge is placed on a support within the incubator.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model relates to a photomultiplier detection device can carry out professional detection to photomultiplier, can judge photomultiplier's thermal stability, plateau district characteristic and sensitivity have effectively solved the problem that photomultiplier performance can't distinguish, has filled the blank of this professional photomultiplier detection area, improves the quality of lithology density logging data greatly, avoids a series of safety risks that radioactive instrument repeated log-in leads to, has practiced thrift the cost, has improved the logging prescription.
Furthermore, the arrangement of the first positioning cylinder and the second positioning cylinder can be used for respectively encapsulating the two detected photomultiplier tubes and the two sodium iodide crystals in the two positioning cylinders, so that the photomultiplier tubes and the crystals can be fixed and encapsulated, and the advantage that the distance between the detected photomultiplier tubes and the middle scale source 4 can be adjusted at any time according to needs can be achieved by adjusting the distance between the two positioning cylinders.
Furthermore, the temporary wiring function of the first wiring terminal and the second wiring terminal is set, so that the photomultiplier to be detected in the detection device can be replaced at any time; through the temporary wiring function of the two wiring terminals, when the photomultiplier needs to be replaced, the temporary connection and disconnection of the outgoing line of the photomultiplier are facilitated.
Furthermore, according to the principle of measuring the intensity of radioactive rays, gamma rays scattered from the position of the scale source 4 in the device are received by the first probe and the second probe which are arranged on the two sections of the scale source, when the gamma rays enter the two probes, the gamma rays are firstly converted into photons by the sodium iodide crystal, the photons enter the photomultiplier tube and are converted into electric pulses, and the electric pulses are amplified by the amplifying circuit 9 and then are output.
Further, the detection device placed in the warming box is heated at a constant temperature, and working environments with different temperatures are rebuilt, so that the temperature characteristics of the photomultiplier under different temperature environments can be detected, and the temperature stability of the photomultiplier under different temperature environments can be detected conveniently.
To sum up, the utility model discloses small and exquisite exquisiteness, portable, high-efficient swift, powerful.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view of the detecting device of the present invention;
fig. 2 is the utility model discloses detection device uses the connection schematic diagram.
Wherein: 1. a lower base plate; 2. a density electron instrument; 3. a first positioning cylinder; 4. a scale source positioning slot; 5. remotely transmitting the gamma short section; 6. a second positioning cylinder; 7. a framework mounting block; 8. a framework positioning block; 9. a circuit board; 10. a first probe; 11. a second probe; 12. a first side vertical plate; 13. a second side vertical plate; 14. a front vertical plate; 15. a rear vertical plate; 16. a first connector; 17. a second connector; 18. a fixed seat; 19. soft connection; 20. a cover plate; 21. a simulator; 22. a bottom corner; 23. a test bench; 24. a computer; 25. a test cartridge; 26. a heating box; 27. a support; 28. a second connection terminal; 29. a first connection terminal.
Detailed Description
Referring to fig. 1, the present invention discloses a photomultiplier detection device, which includes a test box 25, a scale source positioning slot 4, a frame mounting block 7, a first probe 10 and a second probe 11; the scale source constant head tank 4 is used for placing the gamma scale source, and the left and right sides correspondence of scale source constant head tank 4 is provided with a first location section of thick bamboo 3 and a second location section of thick bamboo 6, and a first location section of thick bamboo 3 is connected with first probe 10, and a second location section of thick bamboo 6 is connected with second probe 11, and skeleton installation piece 7 sets up in one side of first probe 10, scale source constant head tank 4 and second probe 11.
A framework positioning block 8 is arranged at one end of the framework mounting block 7, a circuit board 9 is arranged on the framework mounting block 7, a second wiring terminal 28 and a first wiring terminal 29 are arranged on the lower base plate 1 of the test box 25, and an output signal wire head led out by the first probe 10 is connected with an input signal wire head led out by the circuit board 9 through the first wiring terminal 29, so that the connection and disconnection can be realized quickly; the output signal line head led out from the second probe 11 is connected with the input signal line head led out from the circuit board 9 through a second wiring terminal 28, and can be quickly connected and disconnected, and the circuit board 9 is provided with an amplifying circuit, and the signal is amplified and then output to the computer 24 through the second connector 17.
The first positioning cylinder 3 and the second positioning cylinder 6 are respectively provided with a positioning block for limiting, the first probe 10 is a short probe, the second probe 11 is a long probe, the energy spectrum of gamma rays received by the first probe 10 is 150 KeV-450 KvV, the energy spectrum of gamma rays received by the second probe 11 is 60 KeV-549 KvV, and the first probe 10 and the second probe 11 are analog EILog-05 lithologic density short source distance receiving probes. The test box 25 includes lower plate 1, first side riser 12, second side riser 13, preceding riser 14, back riser 15 and apron 20, preceding riser 14, first side riser 12, back riser 15 and second side riser 13 constitute the rectangle frame construction end to end in proper order, lower plate 1 and apron 20 correspond and set up the upper and lower constitution box body structure at frame construction, scale source constant head tank 4, skeleton installation piece 7, first probe 10 and second probe 11 set up respectively on lower plate 1 in test box 25, the bottom of lower plate 1 is provided with four base angles 22 and is used for supporting.
A fixed seat 18 is arranged on the front vertical plate 14, a second connector 17 is mounted on the fixed seat 18, the second connector 17 is connected with the first connector 16 through a soft connecting line, the first connector 16 is a thirty-core connector, and the second connector 17 is a ten-core connector.
Referring to fig. 2, a test box 25 is placed in a heating box 26 and is connected with one end of a 31-core flexible connection 19 through a second connector 17 of the test box, the other end of the flexible connection 19 is connected with a density electronic instrument 2 and a telemetry gamma nipple 5(TCC) in sequence and then is connected with a first connector 16, and the first connector 16 is connected with a simulator 21, a test bench 23 and a computer 24 in sequence through the flexible connection 19; by changing the temperature in the heating box 26, the working environment of the photomultiplier in the well is simulated, and the thermal stability, plateau characteristics and sensitivity of the photomultiplier are detected. The electric signal output by the first probe 10 is led to one end of a first wiring terminal 29, the signal is transmitted to a circuit board 9 through the other end of the first wiring terminal 29, amplified by the circuit board 9 and output through a second connector 17, and then connected with a computer 24 for collection through a flexible connecting line 19, a first connector 16, a density electronic instrument 2 and a remote transmission gamma nipple 5.
The electric signal output by the second probe 11 is led to one end of a second wiring terminal 28, and then is transmitted to a circuit board 9 through the other end of the second wiring terminal 28, amplified by the circuit board 9 and then output through a second connector 17, and then is connected with a computer 24 for collection through a flexible connecting wire 19, a first connector 16, a density electronic instrument 2 and a remote transmission gamma nipple 5.
The working principle is as follows:
a gamma scale source with 10 microCurie is placed on the scale source positioning groove 4 in the test box 25 to generate gamma energy spectrum rays with 80-690 Kev; the energy spectrum ray is received by a first probe 10 and a second probe 11 which are arranged at two ends of the energy spectrum ray, the first probe 10 and the second probe 11 are composed of sodium iodide crystals and photomultiplier tubes (devices to be detected mainly by the device), the first probe 10 and the second probe 11 convert gamma photons into electronic signals, the electronic signals are amplified by a preamplification circuit in a test box 25 and then sent to an EILog complete system for processing to obtain the counting rates of the first probe 10 and the second probe 11, and the sensitivity of the photomultiplier tubes can be judged through the counting rates.
Changing the high voltage, a plateau characteristic map of the photomultiplier tube can be obtained.
The test cell 25 was placed on a holder 27 in an incubator 26, and the thermal stability of the photomultiplier was judged by changing the temperature of the incubator 26.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a photomultiplier detection device, its characterized in that, includes test box (25), density electron appearance (2), teletransmission gamma nipple joint (5), simulator (21), test rack (23) and computer (24), is provided with gamma scale source and probe in test box (25), and the probe is used for detecting gamma scale source and is connected with computer (24) through density electron appearance (2), teletransmission gamma nipple joint (5), simulator (21), test rack (23) in proper order.
2. The photomultiplier detection device according to claim 1, wherein a scale source positioning groove (4) for placing a gamma scale source is provided in the test box (25), a first probe (10) and a second probe (11) are correspondingly provided on the left and right sides of the scale source positioning groove (4), a circuit board (9) is provided on one side of the first probe (10), the scale source positioning groove (4) and the second probe (11), an amplifying circuit is provided on the circuit board (9), the first probe (10) and the second probe (11) are respectively connected with the amplifying circuit, and the amplifying circuit is connected with the density electron instrument (2) through a circuit.
3. The photomultiplier detection device according to claim 2, wherein a first positioning cylinder (3) and a second positioning cylinder (6) are provided between the first probe (10) and the second probe (11) and the scale source positioning groove (4), the first positioning cylinder (3) is connected to the first probe (10), and the second positioning cylinder (6) is connected to the second probe (11).
4. The photomultiplier detection device according to claim 2, wherein a first connection terminal (29) and a second connection terminal (28) are provided in the test box (25), the first connection terminal (29) and the second connection terminal (28) are correspondingly provided between the first probe (10), the second probe (11) and the circuit board (9), the first probe (10) is movably connected to the circuit board (9) through the first connection terminal (29), and the second probe (11) is movably connected to the circuit board (9) through the second connection terminal (28).
5. The photomultiplier detection device according to claim 2, wherein the circuit board (9) is provided on the frame mounting block (7), and a frame positioning block (8) is provided on one side of the frame mounting block (7).
6. The photomultiplier tube detection device according to claim 2, wherein the first probe (10) and the second probe (11) are composed of a sodium iodide crystal and a photomultiplier tube, the first probe (10) receives a gamma ray having an energy spectrum of 150KeV to 450KvV, and the second probe (11) receives a gamma ray having an energy spectrum of 60KeV to 549 KvV.
7. The photomultiplier detection device according to any one of claims 1 to 6, wherein the test box (25) comprises a lower base plate (1), a first side vertical plate (12), a second side vertical plate (13), a front vertical plate (14), a rear vertical plate (15) and a cover plate (20), the front vertical plate (14), the first side vertical plate (12), the rear vertical plate (15) and the second side vertical plate (13) are sequentially connected end to form a rectangular frame structure, the lower base plate (1) and the cover plate (20) are correspondingly arranged above and below the frame structure to form a box structure, the lower base plate (1) is provided with a scale source positioning slot (4), a framework mounting block (7), a first probe (10) and a second probe (11), and the bottom of the lower base plate (1) is provided with a bottom corner (22) for supporting.
8. The photomultiplier detection device according to claim 7, wherein a fixing seat (18) is provided on the front vertical plate (14), a second connector (17) is mounted on the fixing seat (18), one end of the second connector (17) is connected to the circuit board (9), and the other end is connected to the density electronic instrument (2) through a flexible wire and the first connector (16).
9. Photomultiplier detection device according to claim 1, characterized in that the test cassette (25) is placed on a support (27) inside the incubator (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920486410.XU CN210136312U (en) | 2019-04-11 | 2019-04-11 | Photomultiplier detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920486410.XU CN210136312U (en) | 2019-04-11 | 2019-04-11 | Photomultiplier detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210136312U true CN210136312U (en) | 2020-03-10 |
Family
ID=69703297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920486410.XU Active CN210136312U (en) | 2019-04-11 | 2019-04-11 | Photomultiplier detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210136312U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521519A (en) * | 2020-05-09 | 2020-08-11 | 河海大学 | Probe and method for measuring proportion of cement to soil in saturated soil |
| CN112988082A (en) * | 2021-05-18 | 2021-06-18 | 南京优存科技有限公司 | Chip system for AI calculation based on NVM and operation method thereof |
-
2019
- 2019-04-11 CN CN201920486410.XU patent/CN210136312U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521519A (en) * | 2020-05-09 | 2020-08-11 | 河海大学 | Probe and method for measuring proportion of cement to soil in saturated soil |
| CN111521519B (en) * | 2020-05-09 | 2021-09-17 | 河海大学 | Probe and method for measuring proportion of cement to soil in saturated soil |
| CN112988082A (en) * | 2021-05-18 | 2021-06-18 | 南京优存科技有限公司 | Chip system for AI calculation based on NVM and operation method thereof |
| CN112988082B (en) * | 2021-05-18 | 2021-08-03 | 南京优存科技有限公司 | Chip system for AI calculation based on NVM and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210136312U (en) | Photomultiplier detection device | |
| CN105403348B (en) | One kind may be programmed highly integrated multi-path pressure test device | |
| CN109991480B (en) | Detection device and method of M-Bus signal instrument under intentional radiation interference | |
| CN106997058B (en) | A kind of scintillator performance testing device and its Concordance method | |
| CN103712668B (en) | Passive type core material level detector and detection method | |
| CN103792437A (en) | Integrated LEMP three-dimensional electric field measuring instrument | |
| CN103135120A (en) | Measuring method and measuring device of regional gamma radiation based on silicon photomultiplier | |
| CN204331044U (en) | Airborne gamma spectrometer | |
| CN202421506U (en) | X and gamma dosage rate measurement device | |
| CN112925007B (en) | Measuring method and system of PET detector and computer readable storage medium | |
| CN201855270U (en) | Signal generator for debugging and calibration of positron emission tomography scanner | |
| CN106597519A (en) | Foreign particle concentration measuring system for J-TEXT Tokamak device | |
| CN202815233U (en) | Gain stabilizing device used for detector system | |
| CN210128914U (en) | Measuring device for concentration and density of ore pulp | |
| CN204964452U (en) | Wireless crack depth automated inspection appearance | |
| CN208969228U (en) | A kind of Magnetic Sensor static and dynamic performance caliberating device charging straight wire surrounding magnetic field | |
| CN201730614U (en) | Wired MWD gamma energy spectrum log tool | |
| CN207020320U (en) | A kind of gain correcting device of scintillation detector | |
| CN203444733U (en) | Testing device for measuring device response time | |
| CN206096480U (en) | Nuclear power station exhaust -gas treatment radiation monitoring system | |
| CN209927938U (en) | Detection device of M-Bus signal instrument under intentional radiation interference | |
| CN209858018U (en) | Array radiation charge level indicator | |
| CN103278300A (en) | Non-contact bridge deflection sensor | |
| CN106121628B (en) | 2228 lithologic density logging instrument with exemption source | |
| CN108693551B (en) | Probe and device for monitoring grade of uranium ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |