Gemini-NIt is a powerful and high-performance handheld nuclide identifier that achieves powerful radioactive measurement capabilities through careful design and innovative technology.

Purpose:Gemini-N handheldThe nuclide identifier is a handheld portable device that has the ability to measure the dose of radioactive substances (mainly composed ofNaI (Tl) detector and GM tube detector are used for source localization (mainly through dose rate changes and waterfall spectrum changes for radiation source localization), nuclide identification and energy spectrum analysis functions (equipped with unique nuclide identification algorithms and spectrum analysis software).

Technical Parameter

• Detector types: NaI (Tl) and GM tube detectors, sodium iodide is mainly used for nuclide identification and low to medium range dose rate measurement, GM tube
• Mainly used for dose rate measurement;
• Crystal volume: NaI: ≥ Ø 35mm × 50mm, GM tube: ≥ Φ7.5mm×55mm；
• Portable host, detector and instrument host are a closed whole and should not be connected by external cables;
• Stability: ± 1.0% (temperature fluctuation range of 0.5 ℃ or 0.9 ℉ per minute), good stability, with built-in temperature compensation function;
• Automatic power on calibration, with automatic spectrum stabilization function, using characteristic rays of 40K, 214Bi, 208Tl in the environment to achieve automatic energy calibration and spectrum stabilization function;
• Digital filtering correction to eliminate interference signals;
• Using imported Nal detector, energy resolution: for 137Cs (662keV), energy resolution ≤ 7.5%;
• Energy range: 20keV to 3000keV;
• Multi channel: digital multi-channel, 1024 channels;
• Spectral features: ≥ 1024 channels. Can zoom in and out with the cursor, and view the energy of each track;
• Energy spectrum storage: The device can store spectra and comes with 16GB of memory, storing at least 2000 energy spectrum data;
• Equipped with GammaStar graph analysis software, data can be imported into a computer for graph analysis and storage;
• Built in nuclide library, including industrial, medical, natural, safety, nuclear industry, special nuclear materials, and user-defined libraries, capable of storing nuclides
• Classify and distinguish types and intensities;
• Can perform nuclide library and software upgrades;
• The sensitivity technical indicators meet the relevant requirements of IEC 62327 or IAEA Nuclear Security Series No.1 "Technical and Functional Specifications for Border Monitoring Equipment";
• Dose rate range (NaI): 10nSv/h to 500 μ Sv/h;
• Dose rate range (GM): 500 μ Sv/h to 1000mSv/h;
• Dose range: 100nSv-1Sv or 10 μ rem~100rem;
• Equipped with maximum dose rate alarm function, the alarm threshold can be adjusted;
• Weight: with battery and detector not exceeding 2000g;
• Working temperature range: -20 to+50 ℃;
• Humidity: 0-93%, no condensation;
• Protection level: IP55；
• Battery usage time: 12000mAh battery, fully charged and used for no less than 16 hours;
• Display mode: 5.5-inch color LCD, not less than 320 × 240 pixels, with backlight;
• Communication interfaces: RS232 standard interface, USB interface, and Bluetooth;
• Alarm methods: sound, light, and vibration alarms.

to configure:

1.One handheld nuclide identification instrument host with built-in NaI probe and GM tube probe;

2. Data conversion box, USB cable, RS232 cable;

3. One set of graph analysis software;

4. One portable case;

5. One original instrument storage box from the manufacturer;

6. One power adapter;

7. One car charger;

8. One spare battery box.