FoodScreen - Radiological Food Screening System
The CANBERRA FoodScreen Radiological Food Screening System is a complete, transportable food analyzer for quickly determining whether raw or processed food has become contaminated from a radiological event. A sample is placed into the shield, a count is initiated and a final report is generated. The report lists activity or minimum detectible activity concentrations found in the sample for the key nuclides of interest for food products: Iodine-131, Cesium-134 and Cesium-137. Based on nuclidespecific limits pre-determined by the system manager, the report will also state whether the sample is `Clean` or `Above Limit`. Above limit samples may need to be investigated further in a higher resolution detector system such as the CANBERRA FoodSpec™ Radiological Food Analysis System.
The FoodScreen includes a 2 x 2 in. NaI(Tl) detector (optionally temperature stabilized), 7F7 Mobile FoodScreen Shield, a NORM* KCl calibration check source, Osprey™ Universal Digital MCA Tube Base, industry-standard Genie 2000 spectroscopy algorithms and the Genie-FoodPro application software to streamline and simplify counting operations.
Systems are provided pre-calibrated for a variety of sample types including: water, seawater, dairy products, vegetation, grains, meat, eggs, fish, baby food, etc. Of course, the samples may be raw materials directly from the field or processed foods from a factory, export/import dock, warehouse or retail store. A wide range of sample containers is supported to accommodate both raw and canned foods.
Two different system models are available: FoodScreen and FoodScreen-Plus. The only difference between the two models is the detector. FoodScreen includes a standard 2 x 2 in. NaI(Tl) detector, while FoodScreen-Plus incorporates a patented** NAIS-2x2 LED temperature-stabilized 2 x 2 in. NaI(Tl) detector. Sodium Iodide detectors tend to drift with changes in temperature, causing their spectra to broaden and making the detected nuclides more difficult to identify and quantify. Therefore, FoodScreen-Plus is optimized for use in non-air-conditioned rooms as well as field applications.
- NORM - Naturally Occurring Radioactive Material
- US Patent 7,005,646 B1 and 7,049,598 B1
Features
- Rapid screening of processed or raw food products for key 131I, 134Cs and 137Cs nuclides
- Clear, immediate indication if any nuclide-specific maximum permissible concentrations are exceeded
- Transportable using compact and wheeled detector shield
- Supports wide range of samples including 1 L Marinelli, metal food cans, beverage cans and plastic containers
- Completely battery-powered – from laptop PC`s USB port
- Room temperature operation with option for temperature stabilization if measurements will be made out of doors
- Powerful Genie™ 2000 spectroscopy algorithms teamed with the intuitive Genie-FoodPro™ user interface designed specifically for this application
- Turn-key system is provided ready to count, calibrated for typical sample types in a range of common sample containers
- On-site training and /or start-up assistance available from local CANBERRA representative