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Advanced Features
Identifier Multichannel Analyzer

For the more sophisticated user, the IDENTIFIER has advanced features that offer unsurpassed usability in a single system.

Dual mode operation
In the Automatic mode, the IDENTIFIER performs all the advanced features automatically and is generally the preferred mode of operation. In this mode, the operator cannot inadvertently change any parameter settings, alarm levels, etc. These settings are fixed and secure in the Automatic mode.

The Manual mode allows the qualified user the opportunity to change parameters, alarm levels, etc. for both the Automatic and Manual Modes, as well as perform advanced spectrum analysis and other advanced functions. For security, the Manual mode is selected by using a hidden slider switch.

Advanced spectrum analysis
Using a full complement of on-board analysis tools and system pop-up menus, the IDENTIFIER provides the advanced user everything needed to manipulate and analyze the spectrum.

  • Adjust scaling, zoom, and expand peaks of interest
  • Customize system settings
  • Define multiple regions of interest (ROI)
  • Re-play, allows the re-analysis of selected stored spectra

Neutron detection
The IDENTIFIER utilizes a high efficiency moderated solid-state detection system that has maximum neutron sensitivity with minimum gamma interference. When neutrons are detected, the IDENTIFIER alarms with a distinct audio alarm and displays a neutron-warning message with dose rate.

Customized nuclide library
The IDENTIFIER supports up to 5 different pre-defined nuclide libraries. The desired library is activated through menu selection. Each library is factory optimized to ensure positive nuclide identification. We will work with users to optimize custom libraries for special applications. The current software version has one main nuclide library as a default that utilizes 19 of the most common nuclides. Nuclides are listed and identified by full text name and type: medical (MED), industrial (IND), and special nuclear material (SNM).

   System data storage
For practical field use, the IDENTIFIER provides on-board data storage for dose, survey, and sample spectrum. The on-board non-volatile memory secures all saved data indefinitely, even if the batteries wear down. Data storage capabilities: 40,000 dose and survey measurements; 187 spectra x 1024 channel (0-3 MeV).

Special nuclear materials (SNM)
The detection of SNM does not always refer to weapons grade material, which tend to present a relatively clean spectrum. In counter terrorism applications, the presence of U235, U233, and Pu239 is complicated by camouflage techniques and other “dirty” nuclides. No system is fool proof; however, the IDENTIFIER utilizes a combination of the high resolution at low energies of CZT* to qualify SNM.* CZT is an optional detector. SNM analysis is enhanced using CZT, but performs well with only NaI.

Optimized for shielded sources
The IDENTIFIER’s nuclide identification system has been optimized to identify buried and shielded sources. Using sophisticated peak analysis and ratio techniques, the IDENTIFIER surpasses first generation systems to
locate and identify shielded nuclides.

Digital multi-channel analyzer (MCA)
A powerful 1024 channel MCA provides maximum capability throughout the 0.02 to 3 MeV energy spectrum. Automatic pulse pileup rejection is an advanced feature of the IDENTIFIER that removes erroneous peaks caused by high count rate conditions.

Manual/Auto detection
Selection In the Automatic mode, the IDENTIFIER automatically uses all available detectors for optimized analysis based on identified peaks, presence of interfering peaks, and intensities. For special applications, the use through menu selection can select the detector to use for nuclide identification (CZT or NaI).

Nuclide “ID-on-the-run”
Using advanced technology, the IDENTIFIER can perform nuclide identification in real-time. Given sufficient area peak counts above the statistical background during a sample acquisition, the IDENTIFIER displays possible nuclides as this count time progresses.