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HJ-RS2200 Portable Surface Pollution Analyzer
1、 Product Introduction: The HJ-RS2200 portable surface contamination meter is mainly used for measuring alpha and beta surface contamination, and is
Product details
1、 Product Introduction
HJ-RS2100Portable surface pollution metermainly usedα、βThe measurement of surface contamination is widely used in places that must be monitored due to potential contamination, such as nuclear power plants, nuclear waste treatment plants, retired or dismantled nuclear facilities, radioactive waste treatment plants, hospitals, research institutes, and various environmental applications. It can be used to monitor surface contamination of walls, floors, tables, hands, feet, clothing, or other items.
The working principle of the surface contamination meter is to detect the alpha and beta radiation intensity in the radioactive working area and on the clothing of workers through a scintillation detector (plastic scintillator+ZnS (Ag)). When alpha and beta rays pass through a scintillator, photons are emitted. After passing through a photomultiplier tube and amplification circuit, the photons form electrical pulses, which are then detected by a window discriminator to distinguish the alpha and beta signals. These signals are then sent to a counting circuit for calculation and processing to obtain measurement results.
HJ-RS2100Portable surface pollution metermainly usedα、βThe measurement of surface contamination is widely used in places that must be monitored due to potential contamination, such as nuclear power plants, nuclear waste treatment plants, retired or dismantled nuclear facilities, radioactive waste treatment plants, hospitals, research institutes, and various environmental applications. It can be used to monitor surface contamination of walls, floors, tables, hands, feet, clothing, or other items.
The purpose of surface contamination monitoring is to prevent the spread of radioactive contamination, check the effectiveness of radioactive contamination control or whether it violates operating procedures, limit surface contamination to a certain area and level, and prevent contamination from spreading and workers from being exposed to excessive radiation. This provides information for developing personal monitoring plans, system monitoring plans, and operating procedures.
2、 Working principle
The working principle of the surface contamination meter is to detect the alpha and beta radiation intensity in the radioactive working area and on the clothing of workers through a scintillation detector (plastic scintillator+ZnS (Ag)). When alpha and beta rays pass through a scintillator, photons are emitted. After passing through a photomultiplier tube and amplification circuit, the photons form electrical pulses, which are then detected by a window discriminator to distinguish the alpha and beta signals. These signals are then sent to a counting circuit for calculation and processing to obtain measurement results.
IIIApplication location
1. Hospital Radiology Department, Radiotherapy Room;
2. Nuclear power plants, nuclear fuel plants, nuclear fuel reprocessing plants, nuclear related research and experimental institutions, etc;
3. Units related to isotope application and irradiation equipment;
4. Environmental monitoring departments at all levels;
5. Health and epidemic prevention stations at all levels;
4Functional Features
1. The geometric shape and surface of the optimal reflector ensure good uniformity and efficiency;
2. Press the corresponding button to turn on/off the sound prompt;
3. Backlight one key switch, can automatically turn off;
4. It can be connected to an external computer through a USB connector using a serial cable;
5. The surface of the instrument is easy to clean;
6. Vacuum detector, aluminum foil can be quickly replaced;
7. User friendly and easy to operate;
8. Two adjustable alarm thresholds;
9. Small size, light weight, seismic design;
10. High sensitivity and uniform response;
11. Simultaneously measuring alpha beta, alpha or beta can be measured separately;
5、 Technical indicators
detector
plastic scintillatorZnS(Ag)
window
Aluminum containing polyester film foil
β energy
150kev~2.5Mev
BATTERY LIFE
make an appointment150Hour (without backlight)
display
128x64dot matrix
Effective area
10×10 cm2
Detection upper limit
105cps
battery
standardCAlkaline batteryOr rechargeable battery
weight
make an appointment1kg
unit
cps，cps/cm2 ，Bq，Bq/cm2
detection efficiency
241Am≥52%；14C≥17%；204Tl≥48%；90Sr+90Y≥50%；137Cs≥45%
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