Detective-200 Ruggedized, Ultra-High Sensitivity, Transportable HPGe Radionuclide Identification System

Detective-200The Detective-200 is a radiation identification instrument designed to be compact, highly sensitive and portable to achieve an array of nuclear security objectives, such as mobile, maritime, and chokepoint monitoring.

  • Large Area HPGe Detector (~5675 sq mm) gives definitive identification of illicit nuclear material (SNM) in seconds. 
  • 10 times faster to identify HEU than a "conventional" NaI based identifier. 
  • Built-in removable 120 degree collimator reduces background interference in field of view. 
  • IP67 waterproof, dust proof and shock resistant packaging
  • Literature +

  • More Information +


    Detective-200 in Wide Area Search Applications (Land and Air)
    In these non-maritime applications, Detective-200s are easily installed into unmodified vehicles, cars, vans, and aircraft for mobile detection applications at higher speeds and larger distances. Additional Detective-200s are easily added into the system for increased sensitivity. The data can be combined by the Detective-Remote software utility. Multiple Detective-200s are easily stacked vertically.

    In another class of application the instrument system is stationary and the potential source is moving, such as traffic choke point monitors (toll booths, bridges, tunnels), monitoring entry to a public event, monitoring road traffic or ships passing beneath a bridge structure. The measurement is essentially the same.

    The configurability of the Detective-200 solution in both mobile and static applications is a practical benefit which cannot be over-emphasized as requirements constantly change.

    Detective-200 in Maritime applications
    • “Slow Pass” Materials interdiction

    ORTEC Detective-200 Marine Bare HEU Detection Limit 5 MPHDetective-200 is very well suited for mounting on naval vessels. The IP67 packaging is immune to salt spray. The tough fold-flat handles make it easy to lift and mount aboard a vessel, or transport from vessel to vessel. 

    A ship-borne Detective-200 system consisting of one or more instruments, controlled through wired or wireless networking via Detective-Remote, is capable of reliably detecting illicit materials on a nearby vessel in a slow “sail by” measurement. Figure 1 shows an example of sensitivity for unshielded HEU at representative speeds and distances for multiple units of Detective-200s.

    Choke Point Monitoring
    ORTEC Detective-200 Bare HEU Detection Limit, 10 MPHBecause of the lack of 100% coverage with fixed traffic portal monitors, it is desirable to be able to quickly setup and configure temporary or "ad-hoc" portal systems capable of monitoring for nuclear devices, dirty bombs, or contaminated materials in pass-through traffic. One or more Detective-200s can be placed inconspicuously at a roadside, pedestrian entryway, vendor services entrance, warehouse dock, or parking garage. The Detective-200 internal battery power and “Auto Identification” reporting provides simple deployment and operation.

    Figure 2 provides estimated performance of multiple units of land-based Detective-200s at 10 MPH and distances, up to 40 meters with the same alarm conditions as figure 1.

    Standoff Detection

    ORTEC Detective-200 Time to Identify and DetectStandoff detection is the problem of correctly identifying a distant stationary or near stationary radioactive source. The standoff detection limit is essentially a question of signal-to-noise ratio in the detection system. As distance increases, gamma rays are attenuated by air and a fixed field of view means at further distances more background is in the field of view of the source. Both of these affects reduce the signal-to-noise ratio. As with other applications in low resolution systems, background variation is problematic. The high resolution of the Detective-200 and its large area detector make it an ideal standoff tool either alone or in an array. Figure 3 shows the time to identify 2.5 kg of Bare HEU with a >95% probability of detection and <1 false alarm per 20 hrs. (Note that a critical mass of HEU is approximately 50 kg.)

    IMPORTANT NOTE: The effect of Collimation on System Performance

    In all of the applications discussed, the time-to-detect or limit-of-identification may be adversely affected by radiation background, which degrades counting statistics and therefore degrades (raises) the minimum detectable (identifiable) nuclide activity. Background can be reduced by restricting the field-of-view (FOV) of the detection system by the use of a shielding collimator. The example data presented in figures 1, 2 and 3 above assume a collimated FOV of 120°. The optimum collimation depends on the measurement speed, distance and then radioactivity of the environment to be encountered. The overall effectiveness of the system depends on the number of Detective-200s and the choice of collimation. ORTEC scientists are happy to provide advice on the most effective configurations.

    Detective-Remote Software
    Detective-200 is fully supported by the latest versions of the Detective-Remote software. Detective-Remote is a Windows-based application which “combines” the identification capabilities of multiple Detective-200s and controls them remotely over direct-connect USB or remotely over wireless LAN. Detective-Remote supports one or more Detectives as participants in a multi-detector system, providing the ability to combine multiple instruments into a composite system, based on multiple “nodes.” By sophisticated techniques (NOT simple spectral summing) the composite system can operate as if it was a single large detector with some positional sensitivity. In contrast to an actual single large detector, contributing Detective-200s which “see” no nuclide ID signal can be temporarily ignored, along with their background contribution, thereby enhancing signal-to-noise in the composite signal compared to a single large detector (as is the case in the NaI “LOGS” often deployed in scintillation detector mobile systems). Detective-Remote software also supports not just Detective-200s, but Detectives of any size or model, and any combination can be used. Data are gathered by Detective-Remote in LIST mode and individual spectra are stored in the localized database and can be exported into other applications such as spreadsheets, GIS applications, or reporting software.

    “No other nuclide identification instrument provides such sensitivity and accuracy in such a rugged and flexible package.”
     
    Detective-200 Hardware Features
    Since the first model was introduced in 2004, all ORTEC Detective identifiers have incorporated the same principle technologies and features, namely:
    • High-resolution, high-purity germanium (HPGe) detector.
    • Mechanically cooled by miniature Stirling-cycle refrigerator.
    • Internal high range GM tube provides gamma dose rate.
    • Fast, Simple and ULTRA-Reliable Classification of NORM, Medical, Industrial, SNM and Natural Isotopes, shielded and unshielded.
    • Touch Screen or Remote Software Operation.
    • ANSI N42.34 and ANSI N42.42 compliant.
    • Battery/AC/DC powered, highly stable digital electronics.
    • Wired USB, 802.11 wireless communications.
    • Local storage of spectra.
    • Advanced analysis algorithms developed over thousands of real-world identification situations:
      • Low levels of false alarms in the presence of NORM
      • High-fidelity identification of mixture constituents
      • Resistance to “spoofing” by masking sources
      • Immunity to variation in background radiation
    • Easy-to-use through intuitive, touch-sensitive screen GUI with operational modes configurable according to individual CONOPS, including long count mode for weak/distant sources.
    • Neutron detecting models.

    Detective-200 Operational Capabilities

    SEARCH MODES
    Gamma count rates are presented as a time tracking strip chart. 

    MONITOR MODE
    Detective collects one spectrum per second and runs the ID algorithm against an eight second sliding average. More sensitive to sources which move relative to the instrument. Monitor mode is a valuable search method, but is also useful in ad-hoc portal monitoring applications.

    SNM Search Mode
    SNM Search mode is designed to help avoid false negatives when determining SNM. It helps in finding the point of maximum count rate which COULD be consistent with SNM.

    Key regions of the spectrum are monitored which are critical to the determination of both U-235 (the key constituent of HEU) and Pu-239. The peak region confidence level is displayed in the form of a bar graph. A high and steady reading indicates that "something" is present which is worthy of more investigation. Once the maximum reading has been located, the "confirm" key initiates the full identification algorithm.

    SNM Search mode is an INDICATOR of SNM but should always be followed by the confirmatory ID to avoid false positives. In combination, SNM Search and ID modes minimize BOTH false negatives and false positives.

    GAMMA DOSE RATE
    Gamma Dose Rate is monitored by the HPGe detector and by an internal compensated GM tube. The dose rate is displayed at all times. Dose rate units may be chosen as µSv/hr or mR/hr.

    GPS Position Information

    An internal GPS receiver displays GPS coordinates which may be saved along with spectrum data for future use.

    Storage of Data (spectrum, search data, ID results)
    To internal RAM and removable SD card.

    Computer Interfacing
    USB connection to laptop. Spectral transfer by Microsoft® ActiveSync. Remote control via Microsoft “remotedsp.exe” (supplied). WiFi (802.11) communication. Wireless Mobile MCB Server software.

    Display
    Features a large, bright and clear LCD display with touch-sensitive screen. Gamma count rate and gamma dose rate are displayed continuously both numerically and in bar graph form. Menu navigation is highly intuitive. The radionuclide gamma-ray spectrum may be displayed and manipulated (e.g., vertical scale, zoom) like a conventional multichannel analyzer. Y-axis units are now displayed.

    Operating Modes
    In response to customer requests, Detective instruments can now operate in two modes “Classify” and “ANSI”. 

    Classify Mode
    The user presses the Identify button and the instrument gathers data until manually stopped, without preset. During the acquisition, suspected nuclide classification messages appear, such as “Suspect Industrial 1”, meaning the presence of one industrial nuclide is suspected. As the count continues and confidence levels increase, this might change to “Found Industrial 1” or disappear as better statistics determine the previously suspected nuclide was not, in fact, present. Clicking on the “Found” or “Suspect” message gives a listing of which nuclides were actually found (or suspected) by name.

    ANSI Mode
    This mode is similar to classify mode, but dispenses with the classification, and presents nuclide names directly, both suspect and found.

    Preset Time
    This is to allow for CONOPS in which it is required to count for a preset time, for example 60 seconds. At the end of the preset period, only what has been found is reported, no suspects are reported. The operator can request a count time extension, if desired, adding multiples of the original preset period. 

    LCX (Low-Confidence Expert) ID Mode
    LCX mode is password protected. LCX denotes “Low Confidence-Expert,” and is intended for expert users. This identification mode displays suspected threat alarms and identifications at a lower confidence level than the normal mode. This results in more hits on suspected threat nuclides.

    Instrument Calibration
    The instrument is calibrated prior to shipment from the factory. The energy calibration may be checked and adjusted with any known source with a clean gamma ray between 0 and 3 MeV. A higher energy is recommended. Cs-137 is often used. Calibration can be manual or automatic. Background collection is now a required part of calibration. By allowing for activities already in the background, the system will no longer report nuclides detected in the background. These IDs on former versions sometimes lead to user-confusion. The background must be updated on a schedule which is chosen by the privileged user.

    SMART Stabilizer
    The “smart stabilizer” stabilizes the gain very precisely on the 1460 keV peak of K-40, if present. The smart part is that if there is no K-40 present or if Eu-152 is detected, which could interfere with the K-40 peak, the stabilizer setting is held but not adjusted until “normal” conditions return. Even though the Detective is a highly stable instrument, the smart stabilizer allows accurate determination of more complicated mixed spectra.

    Mobile MCB Server
    The Mobile MCB Server software application enables any ORTEC portable instrument installed with a PDA to communicate wirelessly with ORTEC software applications such as MAESTRO, GammaVision, and Detective-Remote. The Mobile MCB Server acts like a wireless version of the USB connection, allowing users to control and monitor any portable spectrometer through a wireless network. 

    Users can develop their own applications through the use of the optional A11 tool kit.
     
    Detective-200 Mobile Detection System Rack Kit 
    The rack kit provides a simple, transportable solution for creating “Ad-Hoc” mobile detection systems without the need for permanent vehicle installation.
    • Supports up to four Detective-200s in varying configurations.
    • Portable, light weight, and collapsible.
    • Easy to install and remove.
    • Rugged frame for mobile applications.
    • Can be configured for multiple vehicle types.
    • Transportable case for rack and two Detective-200s.
    • Vehicle laptop mounting kit.
  • 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 message is displayed if the major lines of uranium are detected and the ratios of the intensities of the lines indicates the U-235 content to be above about 70%.

    Am241 (unshielded) in the “Industrial” category: This message is displayed if the 59 keV peak is located. It could mean that an Am-241 source such as a smoke detector is present. Move closer to the source and/or count longer. This will allow the higher-energy gamma rays to accumulate in the spectrum, in case plutonium is also present.

    Unknown Peak and Unknown/Beta Emitter: This indicates the gamma count rate is higher than can be accounted for based on the peaks in the library. The implication is that either an unexpected nuclide or a beta emitter is present (beta emitters typically producing counts over a broad range of energies). Move closer to the source and count longer to determine the nature of the suspect item. If another ID is found, then the Unknown Peak or the Unknown/Beta Emitter ID are suppressed.

    “Found Nuclide” Screen Messages

    RDD Detected: This message is posted when estimated activity is >100 mCi, whether the activity is from threat or innocent nuclides. The gamma count-rate and dose-rate meters on the Survey Mode and ID Mode screens display a flashing red background and extremely high count and dose rates.

    Classification
    Industrial

    Am-241
    Am-241 (unshielded)
    Cs-137
    Ho-166m
    Ho-166m (shielded)
    Ir-192
    Ir-192 (shielded)
    W-187
    Ac-227
    Ag-110m
    Ar-41
    As-72
    Au-198
    Ba-133
    Ba-140
    Be-7
    Bi-212 (Th-232/U-232 daughter)
    Br-77
    Ca-47
    Cd-115
    Ce-144
    Cm-242
    Cm-243
    Cm-244
    Co-55
    Co-57
    Co-57 (shielded)
    Co-60
    Cs-134
    Hf-181
    Hg-203
    I-126
    I-126 (shielded)
    I-132
    I-133
    I-134
    I-135
    Kr-87
    Kr-88
    Kr-88 (shielded)
    Mn-52
    Mn-56
    Nb-92m
    Nb-94
    Nb-95
    Nb-96
    Nb-96 (shielded)
    Nd-147
    Pa-231
    Pb-203
    Pr-144
    Ra-223
    Rh-105
    Ru-103
    Ru-97
    Sb-124
    Sb-124 (shielded)
    Sb-125
    Sb-127
    Sr-85/Kr-85
    Tc-96
    Te-132
    Th-229
    Th-230
    Tm-171
    W-188/Re-188
    Classification
    Medical

    F-18
    I-125
    Lu-177
    Lu-177m
    Mo-99
    Pd-103
    Se-75
    Sm-153
    Sm-153 (shielded)
    Tc-99m
    Xe-133
    Ac-225
    As-74
    Ce-139
    Ce-141
    Co-58
    Ga-67
    Ga-67 (shielded)
    Ge-68/Ga-68
    I-123
    I-123 (shielded)
    I-124
    I-131
    I-131 (shielded)
    In-111
    Lu-172
    Na-24
    Rb-83
    Rb-86
    Ru-106/Rh-106
    Sc-46
    Sr-82/Rb-82
    Sr-89
    Tl-201
    Tl-204
    Tm-170
    V-48
    Xe-133m
    Yb-169
    Zn-62
    Zn-65
    Zr-95

    Classification
    NORM

    La-138
    Ra-226
    Bi-214 (Ra-226 daughter)
    K-40
    Lu-176
    Th-232 

    Classification
    Bremsstrahlung

    Beta emitter
    Classification
    Other

    Cr-51
    Cu-64
    Eu-152
    Gd-159
    La-140
    Mn-54
    Neutrons on Fe
    Neutrons on Hydrogen
    Unknown Peak
    Unknown/Beta emitter
    Xe-131m
    At-211
    Bi-207
    Br-76
    Br-76 (heavily shielded)
    Br-76 (shielded)
    Cd-109
    Co-56
    Co-56 (shielded)
    Eu-154
    Eu-155
    Eu-156
    Fe-59
    Ga-64
    Ga-64 (shielded)
    Gd-153
    Ho-166
    Ir-194 (shielded)
    Na-22
    Neutrons
    Os-194/Ir-194
    Po-210
    Sn-113
    Ta-182
    Tl-200
    Tl-202
    Xe-135
    Y-88
     
    Classification
    Nuclear Uranium

    Enriched Uranium
    HEU
    U-232
    U-233
    U-235
    U-238
    186 keV peak present
    2614 keV peak present

    Classification
    Nuclear Plutonium

    Pu-239
    Pu-238
    375/414 peak present
    Am-241 (shielded)

    Classification
    Nuclear Neptunium

    Np-237 
  • 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.

    Identification
    Classification 
    Innocent
    Ac-225
    Ac-227
    Ag-110m
    Am-241 (unshielded)
    Ar-41
    As-72
    As-74
    At-211
    Au-198
    Ba-133
    Ba-140
    Be-7
    Beta emitter
    Bi-207
    Bi-212 (Th-232/U-232 daughter)
    Bi-214 (Ra-226 daughter)
    Br-76
    Br-76 (heavily shielded)
    Br-76 (shielded)
    Br-77
    Ca-47
    Cd-109
    Cd-115
    Ce-139
    Ce-141
    Ce-144
    Cm-242
    Cm-243
    Cm-244
    Co-55
    Co-56
    Co-56 (shielded)
    Co-57
    Co-57 (shielded)
    Co-58
    Co-60
    Cr-51
    Cs-131
    Cs-134
    Cs-137
    Cu-64
    Cu-67/Ga-67
    Eu-152
    Eu-152
    Eu-154
    Eu-156
    F-18
    Fe-59
    Ga-64
    Ga-64 (shielded)
    Ga-67
    Ga-67 (shielded)
    Gd-153
    Gd-159
    Ge-68/Ga-68
    Hf-181
    Hg-203
    Ho-166
    Ho-166m
    Ho-166m (shielded)
    I-123
    I-123 (shielded)
    I-124
    I-125
    I-126
    I-126 (shielded)
    I-131
    I-131 (shielded)
    I-132
    I-133
    I-134
    I-135
    In-111
    Ir-192
    Ir-192 (shielded)
    Ir-194 (shielded)
    K-40
    Kr-87
    Kr-88
    Kr-88 (shielded)
    La-138
    La-140
    Lu-172
    Lu-176
    Lu-177
    Lu-177m
    Mn-52
    Mn-54
    Mn-56
    Mo-99
    Na-22
    Na-24
    Nb-92m
    Nb-94
    Nb-95
    Nb-96
    Nb-96 (shielded)
    Nd-147
    Os-194/Ir-194
    Pa-231
    Pb-203
    Pd-103
    Po-210
    Pr-144
    Ra-223
    Ra-226
    Rb-83
    Rb-86
    Rh-105
    Ru-103
    Ru-106/Rh-106
    Ru-97
    Sb-124
    Sb-124 (shielded)
    Sb-125
    Sb-127
    Sc-46
    Se-75
    Sm-153
    Sm-153 (shielded)
    Sn-113
    Sr-82/Rb-82
    Sr-85/Kr-85
    Sr-89
    Ta-182
    Tc-96
    Tc-99m
    Te-132
    Th-229
    Th-230
    Th-232
    Tl-200
    Tl-201
    Tl-202
    Tl-204
    Tm-170
    Tm-171
    V-48
    W-187
    W-188/Re-188
    Xe-127
    Xe-131m
    Xe-133
    Xe-133m
    Xe-135
    Y-88
    Y-91
    Yb-169
    Zn-62
    Zn-65
    Zr-95
    Medical
    Industrial
    Industrial
    Industrial
    Industrial
    Industrial
    Medical
    Other
    Industrial
    Industrial
    Industrial
    Industrial
    Bremsstrahlung
    Other
    Industrial
    NORM
    Other
    Other
    Other
    Industrial
    Industrial
    Other
    Industrial
    Medical
    Medical
    Industrial
    Industrial
    Industrial
    Industrial
    Industrial
    Other
    Other
    Industrial
    Industrial
    Medical
    Industrial
    Other
    Medical
    Industrial
    Industrial
    Other
    Medical
    Other
    Other
    Other
    Other
    Medical
    Other
    Other
    Other
    Medical
    Medical
    Other
    Other
    Medical
    Industrial
    Industrial
    Other
    Industrial
    Industrial
    Medical
    Medical
    Medical
    Medical
    Industrial
    Industrial
    Medical
    Medical
    Industrial
    Industrial
    Industrial
    Industrial
    Medical
    Industrial
    Industrial
    Other
    NORM
    Industrial
    Industrial
    Industrial
    NORM
    Other
    Medical
    NORM
    Medical
    Medical
    Industrial
    Other
    Industrial
    Medical
    Other
    Medical
    Industrial
    Industrial
    Industrial
    Industrial
    Industrial
    Industrial
    Other
    Industrial
    Industrial
    Medical
    Other
    Industrial
    Industrial
    NORM
    Medical
    Medical
    Industrial
    Industrial
    Medical
    Industrial
    Industrial
    Industrial
    Industrial
    Industrial
    Medical
    Medical
    Medical
    Medical
    Other
    Medical
    Industrial
    Medical
    Other
    Industrial
    Medical
    Industrial
    Industrial
    Industrial
    Thorium
    Other
    Medical
    Other
    Medical
    Medical
    Industrial
    Medical
    Industrial
    Industrial
    Industrial
    Other
    Medical
    Medical
    Other
    Other
    Industrial
    Medical
    Medical
    Medical
    Medical
    Suspect (LCX Mode only)
    186 keV peak present
    2614 keV peak present
    375/414 peak present
    Uranium
    Uranium
    Uranium
    Threat
    Am-241
    Am-241 (shielded)
    Enriched Uranium
    HEU
    Neutrons
    Neutrons CR
    Neutrons on Fe
    Neutrons on Hydrogen
    Np-237
    Pu-238
    Pu-239
    U-232
    U-233
    U-235
    U-238
    Unknown Peak
    Unknown/Beta emitter
    Industrial
    Plutonium
    Uranium
    Uranium
    Other
    Neutron
    Other
    Other
    Neptunium
    Plutonium
    Plutonium
    Uranium
    Uranium
    Uranium
    Uranium
    Other
    Other
  • Specifications +


    Operation Modes
    Search Scanning mode for location of radioactive sources. Speed settings 0.1 to 50 seconds/point.
    SNM Search Mode Nuclide-specific search mode for U-235, Pu-239 and neutron counts. Ba-133 surrogate detection may be turned on for training purposes. Bar graph display of nuclide confidence level. Aid to Identify mode.
    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.
    LCX “Low confidence Expert” Mode.
    IDENTIFY Gamma Proprietary scheme for identification and classification of radionuclides. Background subtraction.

    ANSI Mode:  See nuclide list.

    Classify Mode:
    Nuclides classified according to:
    Industrial
    Medical
    Natural (NORM)
    Nuclear

    These classifications are based on an internal, fixed library according to ANSI N42.34. Customized libraries for specific applications can be supplied by special order.
    Remote Mode
    Detective V3 instruments can participate as nodes within the Detective Mobile search system. 
    Dose Rate Visual over range indication and continuous audible alarm, user settable. Over-ride alarm at dose rates >10,000 µSv/hr.

    Radiation Detectors
    Internal HPGe Detector P-type high-purity germanium. Coaxial construction. Crystal Nominal Dimensions 85 mm diameter x 30 mm (±10%) length.
    Cooler
    High reliability, low power Stirling cooler. Cooler design life >5 years continuous running. Dual piston design, 1 W nominal lift at 100°K.
    Digital Noise Suppression LFR Filter.
    Gamma Dose Rate Detector 
    Two detectors determine the gamma dose rate over a wide range from <0.05 µSv/h to >10000 µSv/h, a dose-rate range of around six decades. For low dose rates, below ~20 µSv/h, the dose rate is determined from the Ge detector spectrum. For dose rates above this value, the internal compensated GM tube is used. Instrument switches between the two automatically.
    Dose Rate Uncertainty <(–50% to +100%); continuous audible alarm at dose rates >10,000 µSv/h (fixed maximum threshold), user settable threshold below this.

    Digital MCA and Data Processor
    Display
    VGA 640 x 480 TFT sunlight readable, touch sensitive, operate with finger or stylus. 
    Data Processor
    Marvel 806 MHz XScale.
    Data Storage
    (Spectrum, Search Data, ID Results) To internal RAM and removable SD card.
    Computer Interfacing
    USB connection to laptop. Spectral transfer by Microsoft® ActiveSync. Remote control via Microsoft “remotedsp.exe” (supplied). Wi-Fi (802.11) communication software. Wireless Mobile MCB Server software.
    GPS
    Internal NMEA compliant WAAS capable.
    Digital MCA 
    Internal Storage of Multiple Spectral Data. “Smart” digital spectrum gain stabilizer.
    Digital Noise Suppression
    "LFR Filter" ORTEC Patent Pending.
    Conversion Gain
    8k channel.
    Maximum Number of Stored Spectra Unlimited on removable media.

    Displays and Menus
    Gamma Count Rate Bar Graph
    20 kcps full scale.
    Dose Rate Bar Graph
    10 mSv/hr full scale, flashes on over range.
    Status Lines
    WARNING!! High Dose Rate — Displayed when Dose rate exceeds 10 mSv/hr.
    Detector is Warm — Displayed when crystal temperature is above working limit.
    Bias Supply Error — Displayed if any power supply is bad.
    WARNING!! Low Battery.
    Search Mode (Gamma/Neutron) 
    Dwell times 0.1 to 50 seconds per point. Over-range warning.
    SNM Search Mode
    Nuclide-specific search mode for U-235 and Pu-239. Bar graph display of nuclide confidence level. 
    Identify 
    Nuclide ID and classification.
    "Intense" shows the most intense lines list, which is a continuously updating list of the 12 best peaks currently detected. The nuclides and energies are based on the internal nuclide library. The rank is based on the confidence value for the peak.
    "Save"  Saves the spectrum. Format choices: ORTEC “.CHN”, ORTEC “.SPC” and ANSI N42.42.
    "Display"
    brings up the spectral display. The spectrum may be manipulated via the arrow keys and various accelerator keys for cursor movement. Energy and channel contents are displayed with the spectrum.
    Advanced Setup Password protected.
    Calibration Check Manual or Automatic Calibration Check. Automatic may be triggered by interval or time of day. Instrument is supplied calibrated from factory.
    View Data Acquisition Parameters Reports instrument status.

    Physical
    Maximum Overall Dimensions
    (including Ge detector end cap and shock absorbers)  42.72 cm L x 24.13 cm W x 38.7 cm H (16.82" L x 9.5" W x 15.24" H)
    Weight 
    47 lb (21.32 kg).
    Internal Battery Life
    Approximately 3 hours at 25°C when HPGe detector is cold, depending on battery condition. Battery lifetime may be extended indefinitely by the use of external battery packs which are available in "battery belt" formats.
    Input Power
    10 to 17 V DC from battery or DC power supply (universal mains supply included). Battery charger circuit is inside instrument.
    Power Usage
    Greatest during cool down: <100 W. While charging battery: 5 A nominal. Cold with fully charged battery: <2 A.
    External Power
    DC In and battery Charge In. MS3112E12-10-s or Bendix PT02E-12-10S connector.
    Temperature
    Operation Range:  –10°C to 50°C.
    Relative Humidity:  <100% at 50°C.
    Communications Ports
    • 1 SD (Secure Digital) card slot (3.3 V).
    • 1 USB connection for "ActiveSync" capability or MCA operation with external computer (ActiveSync and remote display software included).
    • WiFi 802.11 communication software.
    • Wireless Mobile MCB Server software.
    Cool Down Time
    The high reliability cooler is designed for continuous operation. Between making measurements the unit is powered from a DC supply, car battery or other high capacity device. Initial cool down time depends on ambient temperature, but is typically <12 hours at 25°C.
  • Ordering Information +


    Model Description 
    DETDX-200 Ultra-High-Sensitivity, Ruggedized, Transportable HPGe Radioisotope Identifier (Gamma Only) with AC/DC power adapter charger, automobile power cable, external battery kit, and wheeled transport case.
    DETDX-200-2
    Includes 2 each DETDX-200 Ultra-High-Sensitivity, Ruggedized, Transportable HPGe Radioisotope Identifiers (Gamma Only) with AC/DC power adapter charger, automobile power cable, external battery kit, and wheeled transport case, and 1 each Detective-Remote software with Laptop computer, external GPS, and MAESTRO software.
    DETDX-200-4
    Includes 4 each DETDX-200 Ultra-High-Sensitivity, Ruggedized, Transportable HPGe Radioisotope Identifiers (Gamma Only) with AC/DC power adapter charger, automobile power cable, external battery kit, and wheeled transport case, and 1 each Detective-Remote software with Laptop computer, external GPS, and MAESTRO software.
    DETEX-200
    Ultra-High-Sensitivity, Ruggedized, Transportable HPGe Radioisotope Identifier (Gamma and Neutron) with AC/DC power adapter charger, automobile power cable, external battery kit, and wheeled transport case.
    DETEX-200-2
    Includes 2 each DETEX-200 Ultra-High-Sensitivity, Ruggedized, Transportable HPGe Radioisotope Identifiers (Gamma and Neutron) with AC/DC power adapter charger, automobile power cable, external battery kit, and wheeled transport case, and 1 each Detective-Remote software with Laptop computer, external GPS, and MAESTRO software.
    DETEX-200-4
    Includes 4 each DETEX-200 Ultra-High-Sensitivity, Ruggedized, Transportable HPGe Radioisotope Identifiers (Gamma and Neutron) with AC/DC power adapter charger, automobile power cable, external battery kit, and wheeled transport case, and 1 each Detective-Remote software with Laptop computer, external GPS, and MAESTRO software.
    DETECTIVE-REMOTE-MOB-SYS
    Detective-Remote software with Detective software update, Laptop computer, external GPS, and MAESTRO software.