DM-01C portable gamma - (X) radiation dose rate meter is a device that integrates multiple advanced technologiesRadiation detectorThe device. The portable (X) radiation dose rate meter consists of an organic scintillator, a photomultiplier tube, a signal processing circuit, and a microcomputer. Applicable to environmental protection departments, disease control centers, geological and mining, medical and health, nuclear power plants, public safety and nuclear emergency, national security, military customs and entry-exit inspection and quarantine, civil aviation, railways, highways and shipping, nuclear decommissioning and decontamination departments, etc; It is also applicable for routine and emergency monitoring of X/γ radiation dose rates in fields such as industrial hygiene and environmental protection. The instrument fully meets the sensitivity measurement lower limit and range requirements of JJG521-2006 "Air Specific Release Energy (Absorbed Dose) Rate Meter for Environmental Monitoring with X - γ Radiation"; The instrument adopts a single detector, which combines high sensitivity and large range characteristics. It can be used as an environmental grade X-ray and gamma dose rate meter, as well as a protective grade X-ray instrument γradiometer.

Product features:

1. Micro touchscreen computers provide you with data display and recording functions.

2. Can simultaneously display dose rate, cumulative dose, change curve, detection type, power display, longitude and latitude, high voltage, and time

3. Advanced GPS chips provide fast and accurate positioning.

4. The 3-inch air equivalent plastic scintillation probe has high sensitivity, high stability, and excellent energy response;

5. Using a single detector, it combines high sensitivity and large range characteristics, without the need to switch detectors to measure high dose rates.

6. Dynamically display dose rate and change curve

7. The fully sealed probe design enables the instrument to be suitable for various harsh environments.

8. Continuous measurement, positioning, timing, and recording can be carried out during the driving process.

9. Data storage can reach over 10 million records.

10. Can illustrate the driving route and dose rate variation curve (in conjunction with PC software).

Technical indicators:

1. Detector: 3 * 2.25 inch plastic scintillator.

2. Radiation measurement range: 10nGy/h-2mGy/h.

3. Energy response: 25keV-3.0MeV (deviation<30%).

4. Response time: 50ms.

5. Radiation measurement update rate:

Conventional: 1 time/second (average value within 1 second)

Fast: 20 times/second (instantaneous value of each sample)

6. Can monitor fast X-ray exposure pulses and provide peak dose rate, pulse width, and peak area dose.

7. Radiation measurement scale value:<0.5% of the displayed value.

8. Relative inherent error: ＜ ± 15%.

9. Radiation measurement temperature drift: ＜ ± 0.2%/℃.

10. Geographic positioning error: depends on GPS, usually GPS positioning error is less than 15m.

11. Display: 3.5-inch industrial grade LCD color touch screen, optional for mobile phone and PC display.

12. Communication method: USB、RS485、 Optional Bluetooth WIFI。

13. Working environment temperature:- 10-45℃；

14. High voltage: 600-900V adjustable (non professionals are not allowed to debug).

15. Relative humidity of working environment:<95% (no condensation or frost)

16. Power supply: Lithium ion, can work continuously for more than 8 hours when fully charged. It can be powered by a 12VDC adapter or a car cigarette lighter, and the continuous working time is not limited.

17. Weight: Approximately 1800 grams (main unit)

PC software:

Connecting a portable computer can display real-time dose measurement values, locations, travel routes, radiation dose rate changes, and other information in the field, and can read back data after measurement. The following figure shows the radiation dose monitoring map from Shenzhen Airport to Meilin Hospital:

High precision logarithmic amplifier is adopted, which enables the instrument to have good output linearity within 5 orders of magnitude, fast response, and no blockage. The following figure is a real graph of the calibration instrument at the primary measurement station, with all data online.

Running Google Earth or other free software can obtain the map that users need. This software has developed a map registration function, which allows users to easily and accurately use map files and observe measurement data.