Nuclear wastewater ≠ nuclear sewage
Nuclear wastewater generally refers to the wastewater discharged from nuclear power plants. Nuclear wastewater mainly includes the main equipment and auxiliary equipment drainage water, reactor discharge water, mainly for low and medium radioactive wastewater. Nuclear wastewater Even after “filtration” treatment of nuclear wastewater, it also contains, carbon 14, drill 60, 90 and other difficult to completely remove radioactive material residues. Nuclear contaminated water is more dangerous, and Japan conflates the two.
How much Fukushima contaminated water has affected us？
According to the previous monitoring of the Fukushima nuclear accident, after the nuclear contaminated water enters the Marine environment, it is first transported by ocean currents, and will spread to different oceans, about 240 days after entering our sea.
Whether it is for Marine life, or for human beings, it is very harmful. Once contaminated with these radioactive pollutants, it can directly enter the interior of plants and animals, causing mutations in the genetic sequence, causing serious diseases, such as cancer and so on. At the same time, its impact on the next generation is also very large, the most intuitive impact is the serious deformities and genetic diseases of the new generation.
How to detect radiation around?
Although the nuclear radiation can not be seen and touched, but in fact in the air, soil, sea water in the medium place, if the nuclear radiation value exceeds the safe range, it will cause harm to the human body, want to see nuclear radiation, you need to use professional instruments: nuclear radiation detector.
How does a nuclear radiation instrument work?
nuclear radiation detector is also known as nuclear detection element. It’s a device for detecting radiation.
The core component of the nuclear radiation detection instrument is the sensor. The nuclear radiation sensor is based on the absorption, backscattering or ionizing excitation of the measured substance. Radioactive isotopes give off particles (or rays) with a certain amount of energy during decay, including alpha, beta, gamma, and neutron rays. Its task is to convert various physical, chemical and other variable information that needs to be detected into measurable electrical signals, and then pass them to the chip for calculation.
Which chips are needed for nuclear radiation detectors?
1. The receiver chip is one of the indispensable core components of the nuclear radiation detector; Here are 7 ADI receiver chips
Radiation detector receiving scheme (a, B, X-ray resolution):
Product model: AD5160
Product parameters: 256-Position SPI-Compatible Digital Potentiometer
Main features and advantages: SPI interface control, digital potentiometer, precise control of amplifier gain.
Product model: LTC6362
Product parameters: Precision. low Power Bajl-to-pail lnout/outoutDifferential Op Amp/SAR ADC Driver.
Key features and benefits: Precision SAR ADC drive, low power consumption, low distortion. Drive the ADC.
Product model: AD9629
Product parameters: 12-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS1.8 Analog-to-Digital Converter
Key features and advantages: Ultra-low power consumption, high speed, good scalability.
Product model: LT6654
Product parameters: Precision Wide Supply High Output Drive Low NoiseReference
Key features and benefits: Low drift, low noise, wide input voltage range, providing a reference source for precision ADCs.
High-speed radiation detector solution (y ray, neutron resolution):
Product Model: LTC6268-10
Product parameters: 4GHz Ultra-Low Bias Current FET Input Op Amp
Key features and advantages: ultra-wideband, low bias, low noise, as a pre-op amp.
Product model: AD9083
Product parameters: 16-Channel 125 MHz Bandwidth, JESD204B Analog-to-Digital Converter
Key features and advantages: High sampling rate up to 2G, up to 16 simultaneous signal acquisition.
2. As long as there is a power supply application scenario, it is necessary to carry out power management, and the power chip can ensure the normal operation of the nuclear radiation detection instrument; Here are three ADI power chips to share:
Product model: LT8410
Product parameters: Ultralow Power Boost Converter with OutputDisconnect
Key features and advantages: Low power consumption, high efficiency, boost 5V to 30V, power the Sensor.
Product model: LTM4668A
Product parameters: Quad DC/DC uModule Requlator with Configurable1.2A Output Array
Key features and benefits: 4 channels, 1.2A output per channel, power to FPGA, integrated inductor and MOSFETs
Product model: MAX20812
Product parameters: Dual-Output 6A, 3Mhz, 2.7V to 16V, buck
Key features and benefits: Dual channel, 2.1mm x 3.5mm.6A
Post time: Sep-08-2023