CIT-300FM rapid primary screening system for internal pollution Introduction: The instrument is composed of α、β Radioactive internal contamination nasal swab detection system and γ Radioactive pulmonary contamination detection system is composed of wipes in human nostrils α and β Rapid detection and inhalation of radioactive substances in human lungs γ X-ray energy spectrum detection realizes the rapid measurement of the activity of radioactive substances contaminated in a large number of people. The instrument is at the leading level in China in terms of multi-channel spectrometer, total amount measurement, data acquisition and processing, method research and other technologies. The instrument is powered by rechargeable lithium battery, which is small in size, light in weight and easy to carry. It is a high-speed digital separation method for nuclear pulse signal. The system and digital spectrometer [invention patent number: ZL 2014 1 0000626.2] meet the requirements of high-speed acquisition. Single-chip microcomputer control, online use with display screen, and Windows all-Chinese operating system make measurement more intuitive and convenient. characteristic: 1. The combination of multiple sodium iodide detector arrays can quickly measure human body γ Rays; 2. Multiple high-performance PIPS detectors can measure simultaneously α、β， It can also be measured separately α or β； 3. The instrument supports the display of ray energy spectrum, the spectral line view is enlarged and reduced, and the cursor moves in the channel site interval; 4. The user defines the measurement time, and the dose result is automatically calculated after the instrument measurement is completed; 5. The instrument can support large-capacity data storage, measurement parameters (including measurement time, time, etc.) and Measurement results (including X-ray energy spectrum, analysis results, etc.) can be saved inside the instrument without loss Data memory, convenient for paperless operation of users; 6. Support automatic alarm, multi-level menu display, automatic measurement and manual measurement mode selection and other functions; 7. The instrument has built-in rechargeable lithium battery for power supply, which can meet the long-term use on site; 8. The overall modular design of the instrument is detachable and convenient to carry. Technical parameters: Detector: sodium iodide detector, resolution: ≤ 7% γ Energy range of X-ray measurement: 30keV-4MeV Sensitivity threshold: 150cps/ μ sv/h Counting rate: ≥ 100kcps Stability: instrument measurement error ≤± 7% Accuracy: the limit deviation between the measured value of absorbed dose rate and the theoretical calculated value is ≤± 10%; α、β Indicators of ion measurement part: Detector: passive injection plane silicon detector (PIPS); α Ion detection efficiency: ≥ 30%; β Ion detection efficiency: ≥ 20%; Stability: measurement error ≤± 5%; Overall parameter index of the instrument: Screening rate: ≥ 10 persons/h; Host volume: 400 × three hundred × 80mm； Weight of main machine of the instrument: 15.0kg; Working ambient temperature: – 10 ℃~+50 ℃; Working environment humidity: no more than 90%; Instrument power supply: DC 12V or 220V AC power supply; Instrument power: 20W
Introduction: The instrument is composed of α、β Radioactive internal contamination nasal swab detection system and γ Radioactive pulmonary contamination detection system is composed of wipes in human nostrils α and β Rapid detection and inhalation of radioactive substances in human lungs γ X-ray energy spectrum detection realizes the rapid measurement of the activity of radioactive substances contaminated in a large number of people. The instrument is at the leading level in China in terms of multi-channel spectrometer, total amount measurement, data acquisition and processing, method research and other technologies. The instrument is powered by rechargeable lithium battery, which is small in size, light in weight and easy to carry. It is a high-speed digital separation method for nuclear pulse signal. The system and digital spectrometer [invention patent number: ZL 2014 1 0000626.2] meet the requirements of high-speed acquisition. Single-chip microcomputer control, online use with display screen, and Windows all-Chinese operating system make measurement more intuitive and convenient.
