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Best Price on Digital Radon Monitor, Portable Radiation Detector for Underground Engineering, House Safety

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The RJ11 series channel radioactive monitoring system is mainly used to monitor whether trucks, container vehicles, trains and other on-board substances contain excessive radioactive substances.


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In an effort to provide you advantage and enlarge our business enterprise, we even have inspectors in QC Staff and assure you our greatest provider and item for Best Price on Digital Radon Monitor, Portable Radiation Detector for Underground Engineering, House Safety, As we’re moving forward, we maintain an eye on our ever-expanding item range and make improvement to our expert services.
In an effort to provide you advantage and enlarge our business enterprise, we even have inspectors in QC Staff and assure you our greatest provider and item for China Radon Monitor and Gas Alarm Detector, With the development and enlargement of mass clients abroad, now we have now set up cooperative relationships with many major brands. We have our own factory and also have many reliable and well-cooperated factories in the field. Adhering to the “quality first, customer first, We are provideing high-quality, low-cost products and first-class service to customers. We sincerely hope to establish business relationship with customers from all over the world on the basis of quality, mutually benefit. We welcome OEM projects and designs.

The monitoring system is equipped with plastic scintillators and standard atmospheric pressure3He neutron tube (atmospheric pressure is optional), with high sensitivity, low detection limit, rapid measurement (200ms response time), can distinguish between natural and artificial, real-time automatic monitoring of channels, with speed detection, video monitoring, license plate recognition, box identification (optional) and other auxiliary functions, effectively prevent the illegal carrying and diffusion of radioactive substances, widely used in nuclear power plants, customs, airport, railway station and other radioactive monitoring and control.

Medical and health care, renewable resources, metallurgy, steel, nuclear facilities, national defense, customs ports, scientific research / laboratory, hazardous waste industry, etc.

Compulsory hardware composition of the system:
Detection assembly: plastic scintillator + low-noise photomultiplier tube
① Support structure: column and waterproof box
② Detector collimation: 5-sided ring lead-lead box
③ Alarm device: 1 set of sound and light alarm for on-site and control center
④ Center management and control system: computer, hard disk, database and analysis software 1 set
⑤ Transmission components: 1 set of TCP / IP transmission components
⑥ Position occupying and speed measurement device: to the radiation type infrared speed measurement system

Detection component: bulk sodium iodide detector + low potassium photomultiplier tube
① Probe-end analysis device: 1024-channel multichannel energy spectrum analyzer
② Support structure: column and waterproof box
③ Detector collimation: 5-sided ring lead-lead box
④ Alarm device: 1 set of sound and light alarm for on-site and control center
⑤ Center management and control system: computer, hard disk, database and analysis software 1 set
⑥ Transmission components: 1 set of TCP / IP transmission components
⑦ Position occupying and speed measurement device: to the radiation type infrared speed measurement system

System optional auxiliary device:
① Neutron detection components: 2-8 long-life neutron ratio counters
② Self-calibration device: 1 low-activity natural radioactive mineral box (non-radioactive source)
③ License plate number identification: hd night vision continuous camera, camera device 1 set
④ SMS alarm system: 1 SMS SMS alarm system set
⑤ Vehicle through management: 1 set of on-site rod lifting system
⑥ Field display system: 1 set of large-screen LED display system
⑦ Live broadcast system: 1 set of microphone + speakers
⑧ Pressure stabilization and endurance device: 1 set of UPS uninterruptible power supply
⑨ Box number identification system: high-definition scanning and storage of container box number and other information (customs selected) 1 set
⑩ Personnel protective device: protective clothing and personal dose alarm device
⑪ Site source search device: portable n, 1 detector
⑫ Dangerous goods treatment device: 1 large lead equivalent source tank, 1 extended radioactive source operating pliers
⑬ Equipment installation foundation: reinforced concrete concrete, rigid platform 1 set

1. The BIN (Background Identification of Normal) background ignores the technology
The technology can quickly detect low levels of artificial radioactive material in the case of high radiation background, the detection time limit can reach 1.05 times of the background radiation level, detection time can reach 100 ms, at the same time allows the vehicle in the rapid movement of radioactive material detection, suitable for rapid detection, and can ensure that the equipment will not misalarm because of the background increase, and the vehicle caused natural radiation screening reduced compensation, increase the authenticity of the test results, improve the detection probability, especially for weak radioactive detection is very helpful

2.  NORM Refunction (40K)
This function is used to determine the natural radioactive substances (40K), such as combining sodium iodide detector and MCA multienergy analyzer can accurately distinguish medical nuclides, industrial nuclides and natural radionuclides

3. Feature SIGMA statistical algorithm
Through the feature SIGMA algorithm, users can easily adjust the equipment detection sensitivity and false alarm probability relationship, can improve the sensitivity of the required detection of extremely weak radioactive sources (radioactive sources such as lost); or in the long-term online monitoring process, to receive and release freely

4. 1017Count long life3He neutron ratio counter (optional)
groovy3The He counter life is approximately 1011Count, our company uses a long life detector to count the life of up to 1017Counts, increase the use time of the detector by one million times, suitable for long-term work in online radiation monitoring and high radiation field

5. MCA multi-channel energy spectrum analyzer (optional)
The bulk sodium iodide detector equipped with multichannel energy spectrum analyzer can realize 1024 analysis of radioactive source and accurately report nuclide type in one second; “this function has outstanding contribution to the detection of sensitive nuclear materials for national defense requirements”

6. Networking (optional)
The measurement data can be uploaded to the management center through the network for unified supervision

7. Nuclide recognition function (optional)
Identify natural and human nuclides, industrial nuclides, medical nuclides, and special nuclear materials.

Natural nuclide 40K、226Ra、232Th
Industrial nuclide 241Am、137Cs、60Co、57Co、22Na、133Ba、54Mn、88Y
Medical nuclides 131I、201Tl、203Hg、18F、99mTc、99Mo、192Ir
Special nuclear materials 57Co、152Eu、238U

1. The BIN (Background Identification of Normal) background ignores the technology
The technology can quickly detect low levels of artificial radioactive material in the case of high radiation background, the detection time limit can reach 1.05 times of the background radiation level, detection time can reach 100 ms, at the same time allows the vehicle in the rapid movement of radioactive material detection, suitable for rapid detection, and can ensure that the equipment will not misalarm because of the background increase, and the vehicle caused natural radiation screening reduced compensation, increase the authenticity of the test results, improve the detection probability, especially for weak radioactive detection is very helpful;

2.  NORM Refunction (40K)
This function is used to determine the natural radioactive substances (40K), such as combining sodium iodide detector and MCA multienergy analyzer can accurately distinguish medical nuclides, industrial nuclides and natural radionuclides.

3. Feature SIGMA statistical algorithm
Through the feature SIGMA algorithm, users can easily adjust the equipment detection sensitivity and false alarm probability relationship, can improve the sensitivity of the required detection of extremely weak radioactive sources (radioactive sources such as lost); or in the long-term online monitoring process, to receive and release freely;

4. 1017Count long life3He neutron ratio counter (optional)
groovy3The He counter life is approximately 1011Count, our company uses a long life detector to count the life of up to 1017Counts, increase the use time of the detector by one million times, suitable for long-term work in online radiation monitoring and high radiation field;

5. MCA multi-channel energy spectrum analyzer (optional)
The bulk sodium iodide detector equipped with multichannel energy spectrum analyzer can realize 1024 analysis of radioactive source and accurately report nuclide type in one second; “this function has outstanding contribution to the detection of sensitive nuclear materials for national defense requirements”;

6. Networking (optional)
The measurement data can be uploaded to the management center through the network for unified supervision;

7. Nuclide recognition function (optional)
Identify natural and human nuclides, industrial nuclides, medical nuclides, and special nuclear materials.

Natural nuclide 40K、226Ra、232Th
Industrial nuclide 241Am、137Cs、60Co、57Co、22Na、133Ba、54Mn、88Y
Medical nuclides 131I、201Tl、203Hg、18F、99mTc、99Mo、192Ir
Special nuclear materials 57Co、152Eu、238U

Misalarm rate
In a stable environment:
Use the space sensor, 10000 times, false alarm rate 1
Without using the occupying sensor, the false alarm rate and misidentification rate are used once within 12h

Radiation Response
Occupup 50 times, alarm 49 times

Outrange
Over 100 v S / h, a high radiation alarm is emitted and removed within 1min after the source leaves

Radiation-induced neutron alarm
No neutron alarm is triggered when the dose rate reaches 100 Sv / h

Background influence
When the background change is large enough to cause a large change in the alarm probability, the monitoring system shall issue a warning prompt

Nuclide recognition

Natural nuclide 40K、226Ra、232Th
Industrial nuclide 241Am、137Cs、60Co、57Co、22Na、133Ba、54Mn、88Y
Medical nuclides 131I、201Tl、203Hg、18F、99mTc、99Mo、192Ir
Special nuclear materials 57Co、152Eu、238U
Note: Nuclide identification and neutron detection are optional, not in the standard system

Project Name

Specification Information

Admito detector index

  • Detector type: plate plastic scintillator +  low noise photomultiplier tube
  • Volume: 50,60,100,120,150,200, optional
  • Dose rate range: 1nSv / h~6Sv / h (100 l)
  • Energy range: 25keV~3MeV
  • Sensitivity: 6,240 c p s / Sv / h / L (relative)137Cs)
  • Lower limit of detection: can detect radiation of 5nSv/h(0.5R/h above the background)
  • Self-calibration: low-activity natural radioactive mineral box (non-radioactive source)

Neutron detector indicator

  • Probe type: long life3He Neutron detector (1 atmospheric pressure)
  • Energy range: 0.025eV (hot neutron) ~14MeV
  • Count of life: 1017A count
  • Size of the effective detection area: 54mm 1160mm, 55mm 620mm is optional;
  • Sensitivity: 75 cps / Sv / h (relative to the other)252Cf)
  • Underlying count: <5cps

Online nuclide identification indicators

  • Detector type: bulk sodium iodide detector + low potassium quartz photomultiplier tube
  • Detector volume: 1,2,8,16, optional
  • Measuring range: 1nSv / h~8Sv / h
  • Energy range: 40keV~3MeV
  • Sensitivity: 47,500 c p s / Sv / h (relative to the other)137Cs)
  • Underlay: 2,000 c p s
  • Lower limit of detection: can detect radiation of 5nSv/h(0.5R/h above the background)

System detection sensitivity

  • Underlying: Gamma reference background of 10u R / h, neutron background of not greater than 5cps (system count rate)
  • False positives rate: 0.1%
  • Source distance: the radioactive source is 2.5 meters away from the detection surface
  • Source shielding: Gamma source unshielded, neutron source unslow, that is, using the naked source test
  • Source movement speed: 8 km/h
  • Source activity accuracy: ± 20%
  • Under the above conditions that can detect the radioactive substances of the activity or quality listed in the following table, the alarm probability within 95% confidence should be 90%:
Isotopic, or the SNM 137Cs 60Co 241Am 252Cf enriched uranium ASTM plutonium (ASTM)γ plutonium (ASTM)n
Activity or quality 0.6 MBq 0.15MBq 17MBq 20000/s 1000g 10g 200g

 

Support structure indicators

  • Level of protection: IP65
  • Column size: 150mm 150mm 5mm square steel column
  • Surface treatment process: overall plastic spraying, chrysanthemum grain
  • Collimator lead equivalent: 510mm lead antimony alloy + 52mm stainless steel wrapped
  • Total height after installation: 4.92 m

Central control and management system indicators

  • Computer: i5 above Lenovo brand computer
  • Computer system: WIN7
  • Hard drive: 500G
  • Data storage time: 10 years

Software indicators

  • Report form: Generate excel spreadsheet permanently; distinguish color display for different alarm types;
  • Report content: The system will automatically generate the test report, including the vehicle entry channel time, time of exit time, license plate number, container number, radiation level, alarm level, alarm type, alarm level, passing speed, background radiation level, alarm threshold, sensitive nuclear material and other information
  • Count display mode: digital display combined with real-time waveform display
  • Field control: allow authorized personnel to enter conclusions on each inspection result
  • Database: The user can make keyword queries
  • Administrative permission: the authorized account can enter the background expert mode

Systemic indicators

  • System sensitivity consistency: 40% change in sensitivity in the height direction of the monitoring area
  • NORM rejection function: identifying natural radionuclides in cargo (40K) the function of
  • n. Detection probability: greater than or equal to 99.9%
  • n. False positives rate: less than or equal to 0.1 ‰ (1 in 10,000)
  • Height: 0.1m~4.8m
  • Monitoring area width: 4m~5.5m
  • Speed monitoring method: double-sided infrared reaction shot
  • Allowed passing speed: 8 km/h ~ 20 km/h
  • Electronic lever: lever lifting time is less than or equal to 6 seconds, lever can be manually lifted after power off (optional)
  • Video surveillance: an HD night vision camera
  • SMS alarm system: full netcom, customer self-provided SIM card
  • One-time box number system identification rate: greater than or equal to 95%
  • One-time pass license plate recognition rate: greater than or equal to 95%
  • Warning decibel: 90~120db; control center 65~90db
  • Adjustment of alarm threshold and false alarm rate: Key value through SIGMA
  • Data transmission mode: wired TCP / IP mode
  • Vehicle overspeed alarm: with the vehicle overspeed alarm function and provide information display, the alarm speed can be set
  • Radiation source positioning function: the system automatically indicates the location in the compartment of the radioactive source
  • Large field screen led screen size: 0.5m×1.2m (optional)
  • Live broadcast system: 120db (optional)
  • Power-off endurance: The monitoring terminal endurance time is greater than 48 hours (optional)
  • The equipment meets the requirements of the national standard “Radioactive Materials and Special Nuclear Material Monitoring System” GBT24246-2009 for the portal vehicle monitoring system and the neutron detection efficiency
  • It meets the requirements of the neutron and detection efficiency of the portal vehicle monitoring system in the Technical and Functional Specifications for Border Monitoring Equipment and IAEA-TECDOC-1312 released in IAEA 2006

In an effort to provide you advantage and enlarge our business enterprise, we even have inspectors in QC Staff and assure you our greatest provider and item for Best Price on Digital Radon Monitor, Portable Radiation Detector for Underground Engineering, House Safety, As we’re moving forward, we maintain an eye on our ever-expanding item range and make improvement to our expert services.
Best Price on China Radon Monitor and Gas Alarm Detector, With the development and enlargement of mass clients abroad, now we have now set up cooperative relationships with many major brands. We have our own factory and also have many reliable and well-cooperated factories in the field. Adhering to the “quality first, customer first, We are provideing high-quality, low-cost products and first-class service to customers. We sincerely hope to establish business relationship with customers from all over the world on the basis of quality, mutually benefit. We welcome OEM projects and designs.


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