Neutron Survey Meter [ TYPE : NSM741 ]
Technical Data
Neutron Survey Meter Type : NSM 741 is a portable micro-controller based battery operated instrument designed primarily for measurement of leakage neutron radiation normally encountered in Medical Cyclotron Facilities, Nuclear Power Plants and other industries where neutron source is used for certain industrial applications. Neutron Survey Meter finds industrial applications such as, in cement, mineral and coal industries where cross belt on-line analysers, based on Neutron activation Analysis are used. Neutron Survey Meter serves as a radiation protection instrument, to measure leakage radiations from the cross belt analyzers . Neutron Survey Meter can be used for measurement in three modes CPS, CPM & Dose rate (mR/h,μSv/h). The unit can measure in the range of (1 µSv/h to 10mSv/h) in dose rate mode.
Features
Specifications
| Radiation Detected | Neutron Radiation. |
|---|---|
| Detector | 3He proportional detector surrounded by 9″ dia Polyethylene sphere, as moderator. |
| Measurement Range(S) | a) Countrate CPS, CPM (0-999999) b) Doserate |
| Neutron Dose Rate | (1 μSv/h to 10mSv/hr)). |
| Alarms | Provision for audio/visual alarms if Dose rate exceeds preset level. |
| Energy Response | Thermal Energy to 10MeV within +/-10% with respect to Am-241-Be. |
| Sensitivity | 14CPS/NV or 30cpm/µSv/hr |
| Gamma Energy Response | <0.5CPM(Avg) for 10R/hr Co 60. |
| Calibration Accuracy | Better than +/-10% with Am-241-Be source. |
| Data storage | Can store up to 1000 data readings and stored data can be recalled back on to display. |
| Serial port (optional) | Built-in serial port facilitates data downloading in to PC. Data communication software with connecting cable can be provide at extra cost as an additional option.. |
| Detector Operating Voltage | 1000V +/- 50V Approx. |
| Control Buttons | ON/OFF, START, STOP, PROG, STORE, INC & DEC are the SEVEN Control buttons provided on the instrument. The above buttons allow the user to program & operate the instruments in appropriate manner. |
| Power | A rechargeable battery of 7.5V (Clustor 1X2) with 3000mAhr. |
| Weight | <7.5 kgs along with Probe. |
