GUARDIAN 501 SERIES

Radionuclide Identification Device (RID)

The Guardian™ 501 family of handheld Radionuclide Identification Devices (RIDs) excels at detecting gamma, beta, neutron, and cosmic radiation emitted by both natural and man-made sources. This ultra-compact, rugged, and sensitive Radionuclide Identification Device (RID) provides superior usability by offering a wider energy range, higher throughput, and better stability in a handheld.

Guardian 501 Series , RID, Handheld, Powered by Target — Guardian 501 Series - RID

Guardian 501 Series - Survey Results Screen Shot — Guardian 501 Series - Survey Results

Guardian 501 Series - Source Identification Screen Shot — Guardian 501 Series - Source Identification

Ultra-compact and rugged
Intuitive and user-friendly operation
Built-in web interface for easy reach-back
Wide range of high resolution gamma and neutron detection
Replay tool aids detector optimization by using previously collected dataset

Physical Specifications

Operating Configuration: Handheld monitor

Detectors (by model):
- Guardian 501 BGO
  - Gamma and thermal neutron (native)
  - Detector Material: Bi₄Ge₃O₁₂ (Gd₂O₃)
- Guardian 501 NAI
  - Gamma
  - Detector Material: NaI(Tl)
- Guardian 501 NAICN
  - Gamma and fast and thermal neutron
  - Detector Material: NaI(Tl) (Capture Neutrons)
- Guardian 501 CLLBC
  - Gamma and thermal neutron (native) with high resolution
  - Detector Material: Cs₂LiLa(Br,Cl)₆:Ce
- Guardian 501 LABR
  - Gamma and optional neutron with the highest resolution
  - Detector Material: LaBr₃(Ce,Sr)
Dimension (L x H x W): 235 mm x 88 mm x 92 mm (9.3 in x 3.5 in x 3.6 in)
Weight: 1,200 to 1,350 g (2.65 to 3 lbs.) depending on detector type

Performance Specifications

Nuclide library includes more than 70 nuclides, exceeding IEC 62327, ANSI N42.34

Environment / Safety

Operating Temperature: -20 °C to 50 °C (-4 °F to 122 °F)

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