Product Introduction

The NT-VR800 channel type vehicle radioactive monitoring system is independently developed and produced by Shanghai Minghe Instrument Co., Ltd. It is mainly installed at important entrances and exits such as airports, docks, train stations, steel production enterprises, entry and exit security channels, nuclear power plant control areas, and nuclear waste treatment plants. It is used to monitor whether vehicles, trains, containers, etc. carry radioactive substances. The product has high sensitivity, wide detection range, short response time, and can achieve advanced functions such as automatic radiation alarm, automatic data storage, automatic capture of vehicle photos, and remote data management. When the radioactive level inside the vehicle exceeds the alarm threshold, the system emits an audible and visual alarm signal to prevent the spread of radioactive substances and their pollutants.

Technical Indicators:

-Detector: Imported plastic scintillator detector, with a single detector volume of 25L, equipped with five sided lead shielding to reduce false alarm rate;

-Energy range: 20keV to 3Mev;

-Detection area height: 0.1-4m customizable height;

-Response width of detection area: 5m (double-sided detector);

-Maximum speed: 10 km/h;

-The system automatically measures the environmental background, and only when it exceeds three times the environmental background for three consecutive times, will the system automatically sound an alarm with a low false alarm rate;

-Environmental adaptability: Temperature: -30 ℃~+60 ℃, Humidity: 30%~95% Rh;

-The monitoring system has the function of measuring the speed of the inspected vehicle and has an overspeed alarm function;

-The entire system meets the requirements of the national standard GB/T24246-2009 "Monitoring System for Radioactive Substances and Special Nuclear Materials" for vehicle radioactive monitoring systems;

-Distinguish between natural radioactive materials and special nuclear materials;

-False alarm rate: ≤ 1/1000;

-Detection sensitivity: At a background level of 0.2 μ Sv/h, an increase of 0.04 μ Sv/h will trigger an alarm within 1 second; Detection probability 99.9%;

-Detection limit:<100nSv/h;

-Automatic background deduction;

-Modular design, easy to disassemble, expand, customize, and maintain; Strong anti-interference ability, able to work in harsh natural environments;

-Alarm method: sound and light alarm;

-Real time visual display of vehicle passage, alarm information, and location of radioactive sources;

-Power supply mode: 220V/50Hz AC power;

-Communication interface: Ethernet;

-Protection level: IP65.

Features:

Adopting multi probe, dual photomultiplier tube coupling technology, and large-area plastic scintillator, the instrument has high sensitivity; Provide remote communication interface to enable computer networking and facilitate centralized management of the system. Strong environmental adaptability, stable and reliable performance, user-friendly human-machine interface, easy installation and maintenance. The modular design of the device can adapt to various monitoring application requirements. The system is capable of storing and displaying historical data.

Product Configuration:

Gamma detector (including supporting structure): 1 unit;

Main control unit: 1 set;

Sound and light alarm equipment: 1 set;

Channel occupancy sensor: 1;

Video surveillance capture system: 1 set;

Remote monitoring center: 1 set;

Chinese application software and accompanying user manual: 1 set;

1 item of civil construction (pipeline laying distance not exceeding 15 meters).

Product hardware:

-Gamma detector: 2 large-area plastic scintillator detectors, with a single plastic scintillator volume of 25L and a total volume of 50L; equipped with five sided lead shielding to ensure effective shielding of the background, the gamma detector has self checking function;

-Main control unit: system operation control, display system working status, alarm control and indication, etc;

-Sensor: detects whether the vehicle to be tested has entered the measurement area and monitors the vehicle's driving speed;

-Sound and light alarm equipment: local sound and light alarm, red and green alarm lights, effectively distinguishing between gamma alarm and out of range value sound and light alarm;

-Remote Monitoring Center: Using one or more computers or servers as a remote monitoring platform, the local radioactive material monitoring system is remotely monitored by running dedicated software, databases, etc. The measurement results are displayed, data storage, data statistical analysis, system control and maintenance, remote parameter settings, fault diagnosis, etc. are achieved; Based on the TCP/IP protocol, multi-point network deployment can be achieved by using multiple computers to form a monitoring center, while monitoring a radioactive material monitoring system to ensure normal monitoring work can continue in the event of a computer failure; Having a central database to implement database management functions; The historical data of the equipment and the center are automatically synchronized, and the monitoring data of the local radioactive material monitoring system can be stored in real time. Calculated by 100 vehicles per day, the data can be stored for 15 years; The central database can backup annual historical data to ensure query efficiency, and after backup, it is easy to query the backed up historical data.

Specialized software:

-There are fully Chinese application software and accompanying user manuals;

-Real time display of data curves and threshold curves;

-It can display data from multiple detectors stacked together, as well as individual detector data;

-Real time display of the current passing vehicle number and passing speed;

-Each detection record passed by a vehicle should be saved, including: the number of the vehicle passing through; The time of entering the detection channel; The time of leaving the detection channel; The speed at which vehicles pass through; Did it trigger an alarm; The raw detection data of this exploration; The alarm threshold parameter setting for this detection;

-If the passing vehicle generates an alarm, the following additional records can be added on the basis of the detection record: alarm type, alarm level; The location of the radioactive source in the carriage;

-Provide a user editing window to input inspection conclusions for each vehicle;

-Capable of historical record statistical analysis, able to perform record queries, statistics, chart analysis, etc. based on different conditions (such as detection, alarm, etc.).