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  • Symetrica / Backpack radiation detector

    Symetrica VeriFinder S300

    Hands-Free Modular Spectroscopic Radiation Detection System with Smart Connectivity

    VeriFinder S300 (Backpack Radiation Detector), Symetrica's VeriFinder Backpack, puts a spectroscopic gamma detector and an optional 3He-free neutron detector on the operator's back. Walk the area hands-free, get an instant response to sources, and identify multiple and masked isotopes from a smartphone, with GPS and smart wireless reporting built in.

    3x3 inNaI crystal
    47Isotope library
    60 sCold start
    Symetrica VeriFinder S300 backpack radiation detector, a grey backpack with an Android smartphone showing the detector interface
    Gamma3x3 in NaI crystal
    Neutron · optional6Li:ZnS 3He-free blade
    VeriFinder S300 with smartphone interface
    Built for the long walk.
    Rugged, water resistant, reliable.

    Symetrica describes a rugged, water resistant and reliable system for radiation detection and identification, built on its patented and field-proven Discovery Technology® and designed for specialist missions. The detectors ride in the pack and the interface is an Android smartphone, so the operator's hands stay free for the search.

    • Homeland Security
    • CBRNe Response
    • Counter Terrorism
    • Venue Security
    Operator with a backpack beside a perimeter fence checking a smartphone
    Hands-free search with the smartphone interface
    Discovery Technology®

    Sharper peaks from the same crystal

    Symetrica states its advanced algorithms increase the effective resolution of the gamma detection system, resulting in reliable low-level detection with fast, simultaneous and accurate identification of multiple and masked isotopes in challenging real-world environments.

    Illustration of a gamma spectrum around 662 keV: a broad dashed raw peak at 7.5 percent FWHM that hides a neighbouring peak, and two narrow green peaks after Discovery Technology enhancement at 1.6 percent effective FWHM Raw 7.5% FWHM Effective · 1.6% FWHM Masked peak resolved 662 keV Energy → Counts
    Illustration, not measured data · 137Cs peak at 662 keV, raw vs effective resolution
    7.5%FWHM
    Raw resolution at 662 keV (137Cs)
    1.6%FWHM
    Effective resolution† at 662 keV (137Cs)
    • High true-positive and low false-positive isotope identification.
    • World-beating classification and identification performance of NORMs and non-NORMs.
    • Identification of masked isotopes that cannot normally be resolved when analyzing raw spectra.
    • Fully functional and accurate operation through temperature shock.
    • Switch on and operate in high radiation fields.
    • Reliable and scalable 3He-free neutron detection even in high gamma exposed fields.
    • Predictive maintenance and no annual calibration required.

    Symetrica's claims: Discovery Technology® combines Symetrica's hardware and patented algorithms, uses on-board processing for spectral enhancement, and is deployed in thousands of systems globally from handheld RIIDs to fixed infrastructure Radiation Portal Monitors (RPM). † Discovery Technology outperforms other systems with the same scintillator by increasing the effective resolution during identification.

    Modular detectors

    Out of the pack, onto the job

    The modular gamma and/or neutron detectors can be easily removed from the backpack and mounted for a wide range of alternative applications, so the same detectors can also serve static or mobile deployments.

    VeriFinder S300 detector modules: a cylindrical gamma detector beside a flat neutron blade panel GammaNeutron · optional
    Gamma detector and neutron blade modules
    Gamma

    NaI crystal

    3x3 in (76.2x76.2 mm) NaI crystal with Discovery Technology†

    Energy range (gamma) 25 keV to 3 MeV. Scintillator dose rate range 10 nSv/h to 1 mSv/h (1 μR/h to 100 mR/h) with automatic scintillator shutdown protection.

    Neutron · optional

    Neutron blade

    6Li:ZnS 3He-free neutron blade system

    The optional neutron detector technology is 3He-free, employing 6Li:ZnS neutron blade technology that Symetrica says achieves class-leading sensitivity for its size and weight.

    • Backpack

      Hands-free search on foot, with the detectors carried in the pack and the smartphone as the interface.

    • Static monitoring

      Detectors removed from the backpack and mounted for static monitoring.

    • Mobile operations

      Detectors removed from the backpack and mounted for mobile operations.

    Optional forearm-mounted ruggedized smartphone case worn on a wrist, showing the detector app
    Smartphone interface

    Compatible with commercially available mobile devices. The user interface is an Android smartphone, and the wireless remote control and compatibility with commercial mobile devices maximizes flexibility for configuring custom deployments. An optional forearm / chest mountable smartphone case is also available (pictured); ask us about it when you request a quote.

    Smart connectivity

    From the operator's back to the command post

    Extensive reach-back capabilities support remote, real-time monitoring and control of in-the-field devices including real-time events lists, dose mapping and remote diagnostics.

    01 · In the pack

    Detect & enhance

    Detectors with on-board processing for spectral enhancement, plus continuous and automatic end-to-end digital stabilization and health monitoring.

    02 · On the operator

    Alert & identify

    Android smartphone interface with audio, tactile (vibration) & display alerts, isotope identification, dose rate meter and GPS with GLONASS.

    03 · Reach-back

    Monitor & report

    Instant online reporting with emailed PDF reports. Optional: real-time dose mapping and unit tracking at reach-back.

    PC interface

    Web browser interface with fully featured event viewer. Bulk event offload tool. Optional: collated fleet event list with remote view and/or operation of in-the-field devices.

    Built to stay in service

    No annual
    No annual calibration required, per Symetrica, thanks to automatic and continuous end-to-end digital stabilization and health monitoring.
    5-year
    Calibration and service interval.
    ±0.5%
    Automatic and continuous end-to-end digital calibration at 662 keV.
    IP54
    Ingress protection. Optional: IP67 as per IEC 60529.
    Specifications

    VeriFinder S300 specs

    Configuration
    Detectors3x3 in (76.2x76.2 mm) NaI crystal with Discovery Technology†
    6Li:ZnS 3He-free neutron blade system The neutron detector is optional; the modular detectors are gamma and/or neutron.
    FunctionsIsotope detection and identification, neutron detection, spectral analysis, dose rate meter, instant online reporting
    Cold start time60 s
    Identification & gamma
    IdentificationsANSI N42.53
    Energy range (gamma)25 keV to 3 MeV
    Raw resolution7.5% FWHM at 662 keV (137Cs)
    Effective resolution†1.6% FWHM at 662 keV (137Cs)
    Library47 isotopes in a customizable library
    Dose rate
    Dose rate range10 nSv/h to 900 mSv/h (1 μR/h to 90 R/h) 137Cs
    Scintillator dose rate range10 nSv/h to 1 mSv/h (1 μR/h to 100 mR/h) with automatic scintillator shutdown protection
    High dose rate mode0.9 mSv/h to 900 mSv/h (90 mR/h to 90 R/h) 137Cs
    Neutron (optional detector)
    Neutron (optional detector)252Cf 20,000 n/s @ 1.2 m/s @ 1.5 m (4 ft/s @ 5 ft)
    Moderated or unmoderated
    Operation
    Sampling timeUser settable from 30 s to 120 mins
    Response timeInstant response to sources (0.2 s) with continuous operation through temperature shock
    Stabilization & health monitoringAutomatic and continuous end-to-end digital calibration [±0.5% at 662 keV], stabilization and health monitoring
    Maintenance5-year calibration and service interval; no annual calibration required
    Power
    Power110-240 V mains and external fast battery charger
    Battery typeCOTS rechargeable Li-ion
    Position, data & interface
    Positioning & mappingGPS with GLONASS
    Optional: Real-time dose mapping and unit tracking at reach-back
    Data & connectivityPDF reports, ANSI N42.42 compliant
    User interfaceAndroid Smartphone
    Optional: Forearm / chest mountable smartphone case
    PC interfaceWeb browser interface with fully featured event viewer. Bulk event offload tool
    Optional: Collated fleet event list with remote view and/or operation of in-the-field devices
    AlertsAudio, tactile (vibration) & display alerts
    Environmental
    Operating temperature-20°C to 50°C (-4°F to 122°F)
    Relative humidityUp to 93% relative humidity, non-condensing, 40°C (104°F)
    Ingress protectionIP54
    Optional: IP67 as per IEC 60529

    † Symetrica: "Discovery Technology outperforms other systems with the same scintillator by increasing the effective resolution during identification."

    FAQ

    Common questions

    Does it detect neutrons as well as gamma?
    Neutron detection is an option. Symetrica describes modular gamma and/or neutron detectors; the optional neutron detector is 3He-free, employing 6Li:ZnS neutron blade technology. Tell us whether you need gamma only or gamma and neutron when you request a quote.
    How often does it need calibration?
    Symetrica states no annual calibration is required, thanks to continuous and automatic end-to-end digital stabilization and health monitoring. There is also a 5-year calibration and service interval.
    How is it powered?
    The batteries are COTS rechargeable Li-ion, and power is 110-240 V mains and external fast battery charger.
    Can the detectors be used without the backpack?
    Yes. The modular gamma and/or neutron detectors can be easily removed from the backpack and mounted for a wide range of alternative applications including static monitoring or mobile operations.
    Which standards does it reference?
    Identifications: ANSI N42.53. Data: PDF reports, ANSI N42.42 compliant. Ingress protection is IP54, with IP67 as per IEC 60529 as an option.
    Can it share results from the field?
    Yes. It can email instant and automatically generated PDF reports and the unit includes GPS with GLONASS. Real-time dose mapping and unit tracking at reach-back, and a collated fleet event list, are options.
    Next step

    Plan your wide-area search

    Tell us the mission, whether you need gamma only or gamma and neutron, and how you report from the field. We will confirm configuration with you.

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