CN105487101A - Secondary charged cosmic ray flux detector - Google Patents
Secondary charged cosmic ray flux detector Download PDFInfo
- Publication number
- CN105487101A CN105487101A CN201510963543.8A CN201510963543A CN105487101A CN 105487101 A CN105487101 A CN 105487101A CN 201510963543 A CN201510963543 A CN 201510963543A CN 105487101 A CN105487101 A CN 105487101A
- Authority
- CN
- China
- Prior art keywords
- scintillator
- photomultiplier
- flux
- group
- efficiency
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/208—Circuits specially adapted for scintillation detectors, e.g. for the photo-multiplier section
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention relates to the technical field of an apparatus for measuring the flux of secondary charged cosmic rays, and especially relates to a detector for detecting the flux of secondary charged cosmic rays. The detector is characterized by comprising a flux scintillator group for measuring the flux of cosmic rays and an efficiency scintillator group for scaling the efficiency of the detector, wherein each scintillator is provided with a photomultiplier, the flux scintillator group and the efficiency scintillator group are connected through a support and are installed on a rotating shaft, the two ends of the rotating shaft are installed on the side wall of a machine frame, one end of the rotating shaft passes through the side wall of the machine frame and is provided with a rotation indicator disc, the outer side of the rotation indicator disc is provided with a rotation handle, the rotation indicator disc is also provided with a pointer for indicating an angle, and the side wall of the machine frame is provided with scale lines corresponding to the pointer. The secondary charged cosmic ray flux detector has a self-scaling function, is high in safety, low in cost and convenient to carry, can measure the flux of the secondary charged cosmic rays at different zenith angles, and can record the altitude of a measuring point, GPS time, an ambient temperature and the pressure intensity of the atmosphere in real time.
Description
Technical field
The present invention relates to a kind of scintillator and photoelectric processing module of utilizing to measure in the device technique field of the secondary charged cosmic-ray flux of different zenith angle, especially relate to a kind of secondary charged cosmic-ray flux detector.
Background technology
Secondary cosmic rays flux is an important environmental parameter, and it is one of important sources of ground surface environment radiation.Accumulate on large time, space scale, secondary cosmic-ray flux data on Different Altitude, longitude and latitude, for research secondary cosmic rays and tellurian is evolved, terrestrial climate changes, the relation between change, solar activity etc. of primary cosmic ray all has basic effect.At present, secondary cosmic rays measurement mechanism mainly obtains system based on traditional NIM module and cabinet, plastic scintillant, high-voltage power module and CAMAC/VME and completes measurement.These equipment manufacturing cost are expensive, volume is large, and power consumption is large, be not easy to carry, and are inconvenient to the secondary cosmic rays flux measured anywhere.
Summary of the invention
The object of the invention is to provide a kind of secondary charged cosmic-ray flux detector for the deficiencies in the prior art.Thus effectively solve the problems of the prior art.
For achieving the above object, the technical scheme that the present invention takes is: described secondary charged cosmic-ray flux detector, be characterized in comprising one group for measuring flux scintillator group and one group of efficiency scintillator group for scale detector efficiency of cosmic ray flux, every block scintillator in flux scintillator group and efficiency scintillator group is provided with photomultiplier, flux scintillator group is made up of primary scintillator and the 4th scintillator, efficiency scintillator group is made up of secondary fluor and the 3rd scintillator, flux scintillator group and efficiency scintillator group are connected by support and are arranged in rotating shaft, rotating shaft two ends are arranged on machine frame sidewall respectively by clutch shaft bearing and the second bearing, one end of rotating shaft is installed one through machine frame sidewall and is rotated display disc, rotate display disc arranged outside and have rotating handles, rotate on display disc and be also provided with the pointer being used to indicate angle, machine frame sidewall is provided with the scale mark corresponding with pointer.
Described machine frame two side is respectively arranged with the first in command and the second in command, and be also provided with spring pin between described rotation display disc and machine frame sidewall, on machine frame sidewall, corresponding spring pin is provided with pin-and-hole.
Described photomultiplier group comprises the first photomultiplier, the second photomultiplier, the 3rd photomultiplier and the 4th photomultiplier, first photomultiplier is arranged on primary scintillator, second photomultiplier is arranged on secondary fluor, 3rd photomultiplier is arranged on the 3rd scintillator, and the 4th photomultiplier is arranged on the 4th scintillator.
Described support realizes 0-90 degree and rotates, and support is made up of the first support, the second support, the 3rd support and the 4th support.
The simulating signal that the first described photomultiplier, the second photomultiplier, the 3rd photomultiplier and the 4th photomultiplier export, digital signal is converted into after amplifying, screening, digital signal is input in programmable gate array respectively, obtains the detection efficiency of coincidence counting and detector by meeting algorithm.
Described efficiency scintillator group is positioned between flux scintillator group, and efficiency scintillator group and flux scintillator group have identical solid angle acceptance.
The invention has the beneficial effects as follows: described secondary charged cosmic-ray flux detector, its have self-scale function, safety, cost low, be easy to carry, and the detector of the secondary charged cosmic-ray flux of different zenith angle can be measured.This detector under the driving of automobile batteries or alternating current, can be recorded in the flux of the secondary charged cosmic rays in different zenith angle, and height above sea level, the gps time of the relevant measurement point of record, and the atmospheric parameter such as the temperature of measurement point and air pressure.
Accompanying drawing illustrates:
Fig. 1 is schematic perspective view of the present invention;
Fig. 2 be Fig. 1 of the present invention face structural representation;
Fig. 3 is the structural representation of flux scintillator group of the present invention and efficiency scintillator group;
Fig. 4 is circuit control principle schematic diagram of the present invention.
Shown in figure: 1. primary scintillator; 2. secondary fluor; 3. the first in command; 4. rotating shaft; 5. clutch shaft bearing; 6. the 3rd scintillator; 7. the 4th scintillator; 8. machine frame; 9. the first support; 10. the second support; 11. the 3rd supports; 12. the 4th supports; 13. first photomultipliers; 14. second in command; 15. spring pin; 16. second bearings; 17. rotating handleses; 18. pointers; 19. second photomultipliers; 20. the 3rd photomultipliers; 21. the 4th photomultipliers, 22. rotate display disc; 23. scale marks.
Embodiment
Below in conjunction with accompanying drawing shownschematically preferred example be described in further detail:
As illustrated in fig. 1 and 2, described secondary charged cosmic-ray flux detector, be characterized in comprising one group for measuring flux scintillator group and one group of efficiency scintillator group for scale detector efficiency of cosmic ray flux, every block scintillator in flux scintillator group and efficiency scintillator group is provided with photomultiplier, flux scintillator group is made up of primary scintillator 1 and the 4th scintillator 7, efficiency scintillator group is made up of secondary fluor 2 and the 3rd scintillator 6, flux scintillator group and efficiency scintillator group are connected by support and are arranged in rotating shaft 4, rotating shaft 4 two ends are arranged on machine frame 8 sidewall respectively by clutch shaft bearing 5 and the second bearing 6, one end of rotating shaft 4 is installed one through machine frame 8 sidewall and is rotated display disc 22, rotate display disc 22 arranged outside and have rotating handles 17, rotate on display disc 22 and be also provided with the pointer 18 being used to indicate angle, machine frame 8 sidewall is provided with the scale mark 23 corresponding with pointer 18.
Further, described machine frame 8 two side is respectively arranged with the first in command 3 and the second in command 14, is also provided with spring pin 15 between described rotation display disc 22 and machine frame 8 sidewall, on machine frame 8 sidewall, corresponding spring pin 15 is provided with pin-and-hole.
Further, described photomultiplier group comprises the first photomultiplier 13, second photomultiplier 19, the 3rd photomultiplier 20 and the 4th photomultiplier 21, first photomultiplier 13 is arranged on primary scintillator 1, second photomultiplier 19 is arranged on secondary fluor 2,3rd photomultiplier 20 is arranged on the 3rd scintillator 6, and the 4th photomultiplier 21 is arranged on the 4th scintillator 7.
Further, described support realizes 0-90 degree and rotates, and support is made up of the first support 9, second support 10, the 3rd support 11 and the 4th support 12.
Further, the simulating signal that described the first photomultiplier 13, second photomultiplier 19, the 3rd photomultiplier 20 and the 4th photomultiplier 21 export, digital signal is converted into after amplifying, screening, digital signal is input in programmable gate array respectively, obtains the detection efficiency of coincidence counting and detector by meeting algorithm.
Further, as shown in Figure 3, described efficiency scintillator group is positioned between flux scintillator group, and efficiency scintillator group and flux scintillator group have identical solid angle acceptance.Its primary scintillator 1, secondary fluor 2, the 3rd scintillator 6 and the 4th scintillator 7 are distinguished in one plane along axis that is long and cross direction, when charged particle is through efficiency scintillator group, will inevitably pass flux scintillator group.By investigating respectively under efficiency scintillator group has the condition of useful signal, primary scintillator/the 4th scintillator has the probability of signal, just can obtain the detection efficiency of primary scintillator and the 4th scintillator respectively, be designated as η 1 and η 4 respectively, the total detection efficiency of flux scintillator group is, η tot=η 1 × η 4.Under given zenith angle, within the unit interval, detect counting through flux scintillator group divided by detecting efficiency η tot, just obtain the flux of secondary charged cosmic rays under this zenith angle.
As shown in Figure 4, each block scintillator all connects a photomultiplier, what increase that pipe provides high pressure for photoelectric tube is the Cockcroft-Walten type circuit driven by low-voltage dc power supply.When charged particle is through scintillator, fluorescence can be inspired in scintillator.After these fluorescence are converted into simulating signal by photomultiplier, be converted to digital signal through amplifier and the adjustable voltage comparator of threshold value.The digital signal obtained is input in logic programmable gate array (FPGA) respectively, meets by logic flux and the detection efficiency that algorithm provides secondary charged cosmic ray.The specific implementation that logic meets algorithm is: four railway digital signals are input in a logic programmable door permutation (FPGA) respectively.FPGA occurs with the high level that whether has on each port of the frequency detecting of 40MHz.As long as high frequency clock detects in any road input have signal, the time window (t is adjustable parameter, such as t=100ns) that a width is t will be opened, to wait for the signal in other road.If also signal detected on other road, this just forms an effective coincidence counting.When FPGA meet algorithm judge that scintillator 1 and scintillator 4 have a signal simultaneously time, then export an effective coincidence counting, the temperature sensor be connected with FPGA database and baroceptor are once sampled simultaneously, and by GPS module record Measuring Time, be finally saved in the SD card in data acquisition board by measuring the data obtained or outputted in computer by RS-232 serial ports.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. measure secondary charged cosmic-ray flux detector for one kind, it is characterized in that comprising one group for measuring flux scintillator group and one group of efficiency scintillator group for scale detector efficiency of secondary charged cosmic-ray flux, every fast scintillator of flux scintillator group and efficiency scintillator group is provided with photomultiplier, flux scintillator group is made up of primary scintillator and the 4th scintillator, efficiency scintillator group is made up of secondary fluor and the 3rd scintillator, flux scintillator group and efficiency scintillator group are connected by support and are arranged in rotating shaft, rotating shaft two ends are arranged on machine frame sidewall respectively by clutch shaft bearing and the second bearing, one end of rotating shaft is installed one through machine frame sidewall and is rotated display disc, rotate display disc arranged outside and have rotating handles, rotate on display disc and be also provided with the pointer being used to indicate angle, machine frame sidewall is provided with the scale mark corresponding with pointer.
2. secondary charged cosmic-ray flux detector as claimed in claim 1, it is characterized in that: described machine frame two side is respectively arranged with the first in command and the second in command, also be provided with spring pin between described rotation display disc and machine frame sidewall, on machine frame sidewall, corresponding spring pin is provided with pin-and-hole.
3. secondary charged cosmic-ray flux detector as claimed in claim 1, it is characterized in that: described photomultiplier group comprises the first photomultiplier, the second photomultiplier, the 3rd photomultiplier and the 4th photomultiplier, first photomultiplier is arranged on primary scintillator, second photomultiplier is arranged on secondary fluor, 3rd photomultiplier is arranged on the 3rd scintillator, and the 4th photomultiplier is arranged on the 4th scintillator.
4. secondary charged cosmic-ray flux detector as claimed in claim 1, is characterized in that: described support realizes 0-90 degree and rotates, and support is made up of the first support, the second support, the 3rd support and the 4th support.
5. secondary charged cosmic-ray flux detector as claimed in claim 3, it is characterized in that: the simulating signal that the first described photomultiplier, the second photomultiplier, the 3rd photomultiplier and the 4th photomultiplier export, digital signal is converted into after amplifying, screening, digital signal is input in programmable gate array respectively, obtains the detection efficiency of coincidence counting and detector by meeting algorithm.
6. secondary charged cosmic-ray flux detector as claimed in claim 1, it is characterized in that: described efficiency scintillator group is positioned between flux scintillator group, and efficiency scintillator group and flux scintillator group has identical solid angle acceptance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963543.8A CN105487101A (en) | 2015-12-20 | 2015-12-20 | Secondary charged cosmic ray flux detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963543.8A CN105487101A (en) | 2015-12-20 | 2015-12-20 | Secondary charged cosmic ray flux detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105487101A true CN105487101A (en) | 2016-04-13 |
Family
ID=55674207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510963543.8A Pending CN105487101A (en) | 2015-12-20 | 2015-12-20 | Secondary charged cosmic ray flux detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105487101A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080191133A1 (en) * | 2006-10-27 | 2008-08-14 | Christopher Morris | Radiation portal monitor system and method |
| WO2010025300A2 (en) * | 2008-08-27 | 2010-03-04 | Los Alamos National Security, Llc | Imaging based on cosmic-ray produced charged particles |
| CN103853173A (en) * | 2012-11-30 | 2014-06-11 | 陕西科林能源发展股份有限公司 | Photovoltaic plate pitching angle manual adjusting and positioning mechanism |
| CN203688013U (en) * | 2013-12-10 | 2014-07-02 | 北京农业智能装备技术研究中心 | Flow detection device |
| CN103954988A (en) * | 2014-04-03 | 2014-07-30 | 中国科学院高能物理研究所 | Space particle detector and data collecting and processing method thereof |
| JP2014225527A (en) * | 2013-05-15 | 2014-12-04 | キヤノン株式会社 | Detection device and detection system |
| CN204129327U (en) * | 2014-10-09 | 2015-01-28 | 华夏海洋能源工程（天津）股份有限公司 | Wide-angle Cherenkov array telescope |
-
2015
- 2015-12-20 CN CN201510963543.8A patent/CN105487101A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080191133A1 (en) * | 2006-10-27 | 2008-08-14 | Christopher Morris | Radiation portal monitor system and method |
| WO2010025300A2 (en) * | 2008-08-27 | 2010-03-04 | Los Alamos National Security, Llc | Imaging based on cosmic-ray produced charged particles |
| CN103853173A (en) * | 2012-11-30 | 2014-06-11 | 陕西科林能源发展股份有限公司 | Photovoltaic plate pitching angle manual adjusting and positioning mechanism |
| JP2014225527A (en) * | 2013-05-15 | 2014-12-04 | キヤノン株式会社 | Detection device and detection system |
| CN203688013U (en) * | 2013-12-10 | 2014-07-02 | 北京农业智能装备技术研究中心 | Flow detection device |
| CN103954988A (en) * | 2014-04-03 | 2014-07-30 | 中国科学院高能物理研究所 | Space particle detector and data collecting and processing method thereof |
| CN204129327U (en) * | 2014-10-09 | 2015-01-28 | 华夏海洋能源工程（天津）股份有限公司 | Wide-angle Cherenkov array telescope |
Non-Patent Citations (1)
| Title |
|---|
| 蔡啸等: "CsI（Tl）晶体量能器探测单元宇宙射线实验的建立与调试", 《核电子学与探测技术》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104360376A (en) | Gamma camera having function of identifying radioactive source, namely nuclide, and nuclide identification method | |
| CN104346951B (en) | Method for monitoring vehicles of parking lot based on interference updating of geomagnetic detector | |
| CN101470206A (en) | Active material detection system and method using multichannel spectrometer | |
| CN103543462A (en) | Nuclide recognition device of radioactive aerosol | |
| CN103852475A (en) | Multichannel potassium measuring instrument based on gamma ray | |
| CN102253063A (en) | X-ray on-line detection probe of steel wire rope core conveyor belt and signal acquisition and processing method | |
| CN103913762A (en) | Channel radioactive substance inspecting and monitoring device and inspecting method | |
| CN103412319A (en) | Detector signal processing method and device based on pulse width spectrum | |
| CN104730561A (en) | Portable alpha and beta surface contamination survey meter | |
| CN202267746U (en) | Detection system for isotope radon-220 of radon | |
| CN106526127A (en) | Multifunctional soil detection and analysis equipment | |
| CN108646284A (en) | A kind of gamma spectrum combined detection system and gamma spectrum measurement method | |
| CN204101739U (en) | A kind of portable multi-function digital radiation logging | |
| CN204705719U (en) | A kind of portable radioactive contamination meter | |
| CN105487101A (en) | Secondary charged cosmic ray flux detector | |
| CN206470158U (en) | dust detecting system | |
| CN104458768A (en) | Method for rapidly determining potassium ion content on transmission band of potash fertilizer production washing section | |
| CN103698798B (en) | β surface contamination position resolution measuring method | |
| CN203705088U (en) | Remote detection system for concrete temperature | |
| CN105785423A (en) | Vehicle-mounted large-area radiation monitoring system | |
| CN202903761U (en) | Underground overflowing gas detection device | |
| CN203849419U (en) | Nuclear haze measurement device | |
| CN206420851U (en) | A kind of gas detects special light source drive module | |
| Askari et al. | Position estimation of a gamma-ray source using NaI-plastic combined detectors | |
| CN110007331A (en) | A kind of radiation detection system and method based on gantry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160413 |