Micro-Detective and Micro-Detective-DX Portable Hand-Held Radioisotope Identifiers
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Ultra-Light, High-Fidelity Hand-Held Radioisotope Identifier

Micro-Detective • Accurate nuclide identification based on high resolution gamma spectroscopy with confirmatory neutron detection. • Definitive detection of illicit special nuclear materials (SNM) trafficking in seconds, in a battery operated instrument. • Fast, Simple and ULTRA-Reliable Classification of NORM, Medical, Industrial, SNM and Natural isotopes, shielded and unshielded: ANSI N42-34 compliant. • Multiple uses (e.g.): Hand-Held Nuclide Identifier, Emergency Whole-Body Counter, Ad-hoc Portal Monitor, Search System, Food Monitor. • Gamma-Ray, SNM and Neutron Search Modes. • Rugged...

Micro-Detective Hardware There are two models of Micro-Detective available: • Micro-Detective: Lightweight, Portable HPGe Identifier with Gamma and Neutron detection. • Micro-Detective-DX: “Gamma only” version of the Micro-Detective. Both models of the Micro-Detective feature the same compact, light weight and rugged hardware. A 50 mm diameter HPGe crystal in a “hardened” cryostat is cooled by an integrated low-power Stirling-cycle cryocooler. The latest revision Micro-Detective features a new cooler offering reduced levels of acoustic noise and vibration, and longer operation life. The...

Micro-Detective Summary of Operational Features (refer to Technical Specifications for more detail) • Three “Search Modes”: Gamma/neutron total count rate SNM Search mode Sliding average “monitor” mode • User choice of identification schemes: “Classify Mode” (by nuclide type: “nuclear, natural, medical, industrial, etc.”) “ANSI mode” Time preset or continuous count selectable to match CONOPS Classify Mode. Suspected Nuclides (not in preset mode) More sensitive LCX mode for SNM detection • Background collect feature eliminates reporting of background nuclides. • “Smart” spectrum stabilizer...

The Micro-Detective is a member of the ORTEC CONNECTIONS family. Remote MCA control and individual spectrum download, even over a network, is achieved simply, by the use of the included MAESTRO-PRO Advanced Spectroscopy software. MAESTRO-Pro is an advanced spectroscopy application which includes support for multiple languages, extensive calibration features, N42 spectrum file support, peak fit and analysis results display, expanded automation functions, and more. The Micro-Detective is fully supported by the latest versions of other ORTEC Gamma Spectroscopy Packages such as GammaVision for...

Technical Specifications: Hardware RADIATION DETECTORS The Micro-Detective includes three separate radiation detector subsystems: A high resolution high purity germanium (HPGe) detector for nuclide identification. A compensated GM Tube for dose rate. A moderated neutron detector (absent on DX model). HPGe Detector P-type high-purity germanium. Coaxial construction. Crystal Nominal Dimensions: 50 mm diameter x 33 mm (±10%) deep. Cryostat/Cooler: “Hardened” cryostat, with high reliability, low-power Stirling Cooler. The cryostat design is such that the Micro-Detective may be switched off at...

Micro-Detective Technical Specifications: Operation Modes SEARCH Scanning mode for location of radioactive sources, with audio alert using an external ear piece. Both neutron and gamma search is simultaneous; speed settings 0.1 to 50 seconds/point: Neutron counts are displayed in red and gamma counts in blue. MONITOR Mode The instrument collects one spectrum per second and runs the ID algorithm against an 8 second sliding average. This mode is more sensitive to sources which move relative to the instrument. SNM Search Mode™ Nuclide-specific search mode for U-235, Pu-239 and neutron counts....

Technical Specifications: Instrument Nuclide ID Messages: Classify Mode The form of the primary ID messages is: "Found CLASS(#)" or "Suspect CLASS(#)" where “CLASS” is Medical Industrial NORM Bremsstrahlung Other Nuclear Uranium Nuclear Plutonium Nuclear Neptunium And "#" is the number of nuclides of that class identified. The table lists the Detective Library v8.5 radionuclides according to their categories in the “Classify” ID mode. Classify Mode Message Rationale The following explains the criteria for selected Classify ID Display Mode messages. HEU (highly enriched uranium): This...

Technical Specifications: Instrument Nuclide ID Messages: ANSI Mode The table below is divided according to the threat category used to determine ID background color in Monitor Mode and on the Found and Suspect Nuclide reports, e.g., green for innocent IDs, yellow for LCX-mode suspects, and red for threats. NB: if desired and under password protection, the color coding, and therefore the threat classification can be disabled. Classification Medical Industrial Industrial Industrial Industrial Industrial Medical Other Industrial Industrial Industrial Industrial Bremsstrahlung Other Industrial...

Micro-Detective Gamma-Ray Identification Performance Data for Uranium and Plutonium (Typical values based on data obtained from actual measurements by ORTEC personnel.) Single Sources Unless otherwise stated, these data were taken at a standard dose rate from the source of 500 nSv/h measured with a calibrated dose rate meter at the instrument detector face according to ANSI N42.34. When an absorber was present, the dose rate at the detector was measured THROUGH the absorber. Unshielded and Shielded Uranium: DU, U-NAT, LEU, HEU The time to identify as uranium, either unshielded or shielded...

Note: This brochure relates to instruments with the following revision levels: Micro-Detective Rev.2.B or later Micro-Detective-DX Rev.1.F or later

Specifications subject to change 052820 www. ortec-online, com Tel. (865) 482-4411 • Fax (865) 483-0396 • ortec.info@ametek.com 801 South Illinois Ave., Oak Ridge, TN 37830 U.SA For International Office Locations, Visit Our Website