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010-83622127
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This neutron dose rate meter is an intelligent radiation measurement instrument, employing an intelligent probe and usable by connecting to a multi-functional radiation measurement host. This instrument enriches the intelligent probe series and expands the applications of multi-functional radiation measurement instruments. The instrument achieves product serialization based on a unified inspection system software platform and a single multi-functional radiation measurement instrument. Customers can meet various usage requirements by selecting different probes. This probe uses a 3He proportional counter tube with a polyethylene moderator for measuring neutron dose rate. This product is widely used for neutron dose rate detection in nuclear power plants, nuclear power plants, research nuclear reactors, accelerators, and neutron source operations. It can also be used by environmental protection bureaus at all levels, disease control centers, and oil well logging. It conforms to the standard GB/T 14318-2019/IEC 61005:2014 "Radiation Protection Instruments - Neutron Ambient Dose Equivalent (Rate) Meter".
| Host technical specifications | |
|---|---|
| Display screen | 3.2-inch color LCD screen, 320×240 resolution, with backlight. |
| detector | GM pipe |
| Measurement type | X-rays and gamma rays |
| Energy range | 48keV~3MeV |
| Measurement range | Absorbed dose rate: 10 nGy/h~100 mGy/h; Dose equivalent rate: 10 nSv/h~100 mSv/h |
| powered by | Built-in rechargeable lithium battery to power the entire device |
| Neutron probe technical specifications | |
| detector | ³He proportional counter tube + polyethylene moderator (spherical) |
| Sensor pressure | 8 atmospheres |
| Measurement type | neutron n |
| Sensitivity | 2.83CPS/(μSv/h)，²⁵²Cf 源 |
| Real-time dose equivalent rate | 0.01μSv/h ~ 99.99mSv/h |
| Cumulative dose | 0.01μSv ~ 9999mSv |
| Energy range | 0.025eV ~ 15MeV |
| Relative inherent error | ≤±15% |
| Repeatability | ≤1% |
| Thermal neutron detection efficiency | Approximately 90% |
| γ inhibition ratio | ≥100:1(10mSv/h，¹³⁷Cs) |
| Radiation resistance | The instrument can operate normally with a cumulative gamma-ray dose of up to 300 Sv. |
| Alarm methods | Sound and light alarm |
| alarm threshold | Continuously adjustable within the measurement range |
| Alarm Categories | Threshold, overload, fault, low battery voltage |
| Display unit | nSv/h、nGy/h、μGy/h、μSv/h、cps 等 |
| Data storage | It can store 20,000 sets of data. |
| Angular response | The 4π angle response deviation is less than ±10%. |
| Corrosion resistance | It is resistant to weak acids, weak bases, and salt solutions; it is insoluble in most solvents below 60°C. |
| Communication methods | RS-485 |
| Power consumption | The total power consumption of the machine is ≤200mW (excluding the power consumption of the monitor backlight). |
| Working hours | When used with the main unit, it can work continuously for more than 24 hours with the buzzer and backlight turned off. |
| Environmental characteristics | |
| Operating temperature | -41℃~ +50 ℃ |
| Storage temperature | -41℃~ +50℃ |
| relative humidity | ≤90% (35℃) |
| Protection level | IP65 |
| Mechanical properties | |
| Moderator materials | Low-density polyethylene |
| moderated body density | 0.95g/cm³ |
| size | Probe: Φ230×360mm; Main unit: 170×80×30mm |
| weight | The whole machine weighs 9.5kg |
Online message
Jujie Financial Building, Lizhe Road, Fengtai District, Beijing
010-83622127
info@n-tetbj.com
