Neutron dose rate meter

Neutron dose rate meterIt is an instrument specifically designed to measure neutron radiation dose rates, with the core used to monitor the safety level of neutron radiation fields. The neutron dose equivalent rate meter is suitable for places that produce neutrons, such as petroleum, medical, research nuclear reactors, accelerators, neutron sources, and other security checks, border controls, customs monitoring, etc.

Neutron dose rate meterMain parameters:

1. Measurement range: Refers to the upper and lower limits of the neutron dose rate that the instrument can measure, usually in units of μ Sv/h (microsieverts per hour) or nSv/h (nanoseconds per hour). The measurement range is 0-100mSv/h.

2. Sensitivity: Refers to the sensitivity of an instrument to neutron radiation, usually expressed as the ratio of counting rate to dose rate, such as cps/(μ Sv/h). Sensitivity is 0.6 cps/(μ Sv · h-1) (252Cf),>0.3 cps/μ Sv/h (241Am Be source).

3. Energy response: refers to the ability of an instrument to respond to neutrons of different energies. Ideally, the instrument should have a uniform response throughout the entire neutron energy range, but in reality, the instrument's response may vary with changes in neutron energy. Thermal neutrons up to 20MeV, with an energy dependence of ± 30% (50keV -10MeV).

4. Accuracy: Refers to the degree to which a measurement result is close to the true value, usually expressed in the form of relative error. ± 20%/± 25% (curium beryllium neutron source).

5. Gamma suppression ratio: reflects the ability of an instrument to distinguish between neutrons and gamma rays, usually expressed as the ratio of the count rate caused by gamma rays to the count rate caused by neutrons. ≥ 100:1 (10mSv · h-1137Cs),>100 at 0.01Sv/h 137Cs.

6. Response time: refers to the time required for the instrument to start measuring and display stable measurement results. Some instruments have two response modes: fast and slow.

7. Working temperature range: The ambient temperature range in which the instrument can work normally. The working temperature range of different models of instruments varies, generally between -20 ℃ and 50 ℃.

8. Protection level: Refers to the ability of the instrument casing to protect against external object intrusion and moisture intrusion, usually represented by an IP code.