Detective-100T HPGe-based Hand-Held Radioisotope Identifier

Detective-100T HPGe Based Hand Held Radioisotope IdentifierLooking for special nuclear material can be like looking for a needle in a haystack. Fertilizers, ceramics, kitty litter, medical patients etc., are all radioactive and can confuse most other instruments. When you can’t afford to be wrong, you need an ORTEC Detective.
  • "Expert Level" Determinations without need for an Expert.
  • Simple to Operate: Bright, Clear Displays, touch sensitive screens, intuitive menus.
  • High resolution gamma spectroscopy with confirmatory neutron detection in EX models.
  • Definitive answers to the detection of illicit 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.
  • Highly resistant to masking source interference.
  • ~20 to 50 times better than even the most advanced NaI and CZT instruments.
  • “-100” models even faster to ID.
  • Highest Sensitivity Detection of Neutron Sources in a hand-held instrument.
  • Gamma-Ray and Neutron Search Modes.
  • SNM Search Mode™ finds SNM sources in the presence of other sources.

The ORTEC Detective family of Hand-Held Radioisotope Identifiers (HHRIDs) has gained an unmatched reputation for performance in the rapid identification of radioisotopes in both suspected and actual cases of illicit nuclear materials trafficking. ORTEC Detectives are "the Gold Standard".

  • Literature +

  • More Information +


    The ORTEC Detective family of Hand-Held Radioisotope Identifiers (HHRIDs) has gained an unmatched reputation for performance in the rapid identification of radioisotopes in both suspected and actual cases of illicit nuclear materials trafficking.

    ORTEC Detectives are deployed ever more widely in the battle against illicit nuclear trafficking. Hundreds are being used world wide by (among others):
    • Departments of Homeland Security
    • Departments of Defense
    • National Security Organizations
    • Bomb Disposal Teams
    • Emergency Response Teams
    • Customs and Border Control
    • Navy, Army and Air Forces
    • International Atomic Energy Agency
    • Emergency Management Teams
    • Civil Support Teams
    • Police Departments
    • Nuclear Safeguards Organizations
    • Nuclear Fuel Manufacturers
    • Nuclear Researchers
    • US NNSA second line of defense “Megaports” initiative

    Benefits
    • Highest performance HPGe nuclide identifier: now improved further by latest advanced algorithms.
    • High resolution gamma spectroscopy with confirmatory neutron detection in EX models.
    • Definitive answers to the detection of illicit 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.
    • Simple to Operate: Bright, Clear Displays, touch sensitive screens, intuitive menus.
    • Multiple uses (e.g.): Hand-Held Nuclide Identifier, Emergency Whole-Body Counter, Ad-hoc Portal Monitor, Search System, Food Monitor.
    • Gamma-Ray and Neutron Search Modes.
    • SNM Search Mode™ finds SNM sources in the presence of other sources.
    • Compatible with Detective-Remote search system.
    • USB and Wireless 802.11 Communications.
    • Wireless Mobile MCB Server software.
    • Built in GPS.
    • Secure Digital (SDIO) slot.

    Software Features
    • 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
      Suspected Nuclides (not in preset mode)
      More sensitive LCX mode for SNM detection
    • Background collect feature eliminates reporting of background nuclides.
    • “Smart” spectrum stabilizer ensures optimum results, even with hard-to-analyze spectra.
    • ANSI N42.42 format storage of spectra.

    Models
    • Detective-EX-100T: The Detective-EX made faster! A larger 65 mm x 50 mm HPGe detector version of the -EX.
    • Detective-DX-100T: “Gamma only” versions of the Detective-EX-100T.

    Operational Capabilities 
    (all models except where noted)

    SEARCH MODES
    Gamma and neutron (if applicable) count rates are presented as a time tracking strip chart. Neutron counts are displayed in red and gamma counts in blue.

    MONITOR MODE
    Detective collects one spectrum per second and runs the ID algorithm against an 8 second sliding average. More sensitive to sources which move relative to the instrument. Monitor mode is a valuable search method, but is also useful, for example, 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 mrem/hr.

    NEUTRON COUNT RATE (-EX models)
    Neutron Count Rate is displayed continuously. The data can be quickly saved and transmitted for further offsite analysis.

    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”. Wi-fi (802.11) communication. 

    All models feature a large, bright and clear LCD Display with touch-sensitive screen. The figure shows the main operator screen. Gamma and neutron (-EX) count rate and gamma dose rate are displayed continuously both numerically and in bar graph form. The battery life remaining is shown at the top. 

    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.

    Display
    All -EX/-DX models feature the same bright and clear VGA resolution display with touch sensitive operator screen. 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.

    Power Sources
    Detective can draw power from a variety of sources. For initial cool down from ambient temperature, the Detective is placed on the docking station, or attached to the compact AC/Power Adapter/Charger (PAC). The docking station provides small air movers to assist with initial cool down in conditions of high ambient temperature (>40°C) and incorporates a source holder for the optional CS-137 calibration check source. The docking station is recommended for high ambient temperatures. The PAC is the much more compact solution. K-40, as found in dietary salt substitute, is an easy to obtain calibration check source for use with the PAC.

    The optional source is ~0.25-µCi (9250 Bq) solid and sealed. It is an exempt quantity under U.S. and European regulations and is only supplied pre-installed by ORTEC (not separately).

    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 by up to 5 mm steel, is <2.5 sec. For LEU and HEU samples, the type ("LEU" or "HEU") is also reported in <2.5 sec. LEU and HEU samples shielded by 1.6 mm lead are identified as Uranium in <2.5 sec.

    Unshielded and Shielded Plutonium: Weapons Grade (WG), Reactor Grade (RG) (~60–93% 239Pu)
    Time to identify as Pu, unshielded or shielded by up to 5 mm steel or 10 mm lead: <13 seconds for all types of Pu (with Cd filter if high Am content). For WG Pu the type "WG Pu" is also reported in less than <35 sec.

    Mixtures
    In all cases, the mixture consists of 500 nSv/h of the "mask" nuclide, added to the specified quantity of uranium or plutonium. The "dose ratio threshold" is defined to be the standard 500 nSv/h dose rate from the mask in ratio to the smallest dose rate from U or Pu detectable in the time stated.

    Uranium at 500 nSv/h in the presence of Cs-137 or Co-57 mask (unshielded)
    Time to identify as uranium <2.5 sec. For LEU and HEU, the type ("LEU" or "HEU") is also reported in <2.5 sec.

    Uranium Dose ratio threshold for 60 second measurement in the presence of Cs-137 or Co-57 mask (Dose from mask: Dose from uranium)
    >7:1 for identification as uranium unshielded
    >3:1 shielded 5 mm steel
    >2:1 for reporting as LEU or HEU unshielded
    >1.5:1 shielded 5 mm steel

    Plutonium at 500 nSv/h in the presence of Ba-133 mask
    Time to identify as Pu <20 sec, unshielded or shielded by 5 mm steel or 10 mm lead. Identified type as RG Pu or WG Pu in <100 sec.

    Plutonium Dose ratio threshold for 5 minute measurement in the presence of Ba-133 mask
    >6:1 for identification as Pu unshielded, >4:1 shielded by 5 mm steel or 10 mm lead.
    >1:1 for reporting as WG Pu or RG Pu unshielded or shielded by 5 mm steel or 10 mm steel (with Cd filter if high Am content).

    Analysis Algorithm Improvements
    Detective series instruments have proven highly resistant to false positive and false negative results. Recent improvements to the Detective algorithms have enhanced this already excellent performance still further. In Version 3, the implementation of the background subtraction has removed the reporting of nuclides identified in the background. While technically not an incorrect result, reporting of background nuclides was considered undesirable by some experts. The smart stabilizer has improved the analysis of some difficult masking scenarios.

    COMMUNICATIONS SOFTWARE

    The Detective-EX-100T and Detective-DX-100T are members of the ORTEC CONNECTIONS family. Remote MCA control and individual spectrum download, even over a network, is achieved simply, by the use of ORTEC CONNECTIONS products such as MAESTRO MCA Emulation software.

    Detective-EX-100T/-DX-100T are fully supported by the latest versions of the highly successful MAESTRO MCA Emulator as well as ORTEC Gamma Spectroscopy Packages such as GammaVision for generalized HPGe spectrum analysis, FRAM and MGAHI for Pu and U isotopic ratio analysis and ISOPlus for in-situ waste assay analysis. NOTE: MAESTRO is supplied as part of packages containing "PKG" in the model number, or it can be purchased separately at a later date.

    The integral USB connection in the instrument hardware provides full PC control, real-time live MCA display, fast data transfer of single and multiple spectra to the PC, and full ORTEC CONNECTIONS network support. 

    Multiple spectra may be block-transferred from the instrument controller to external PCs by the use of Microsoft ActiveSync. Third party products such SOTI “Pocket Controller Enterprise” may be used to implement the 802.11 wireless feature to provide remote wireless control of the complete instrument.

    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.
  • 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, with audio alert using an external ear piece. Both neutron and gamma search is simultaneous; speed settings 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 Remote 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 65 mm diameter x 50 mm (±10%) length.
    Cooler
    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.
    Neutron Detector Module (-EX model only) Four tubes:  4" active length, 0.5" diameter. High density Polyethylene moderator.

    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 handle, Ge detector endcap and shock absorbers)
    Detective-EX-100T: 39.4 cm L x 18.3 cm W x 34.9 cm H (15.5" L x 7.2" W x 13.75" H)
    Detective-DX-100T: 39.4 cm L x 16.3 cm W x 34.9 cm H (15.5" L x 6.55" W x 13.75" H)
    Weight 
    Detective-EX-100T 26.3 lb (12 kg)
    -DX-100T versions are 1.9 lb (0.9 kg) lighter.
    Internal Battery
    >3 hours at 25°C when HPGe detector is cold. 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 30 W or from battery or auto-sensing Mains powered Battery Charger.
    External Power
    DC In and battery Charge In. MS3112E12-10-s or Bendix PT02E-12-10S connector.
    Temperature
    Operation Range:  –10°C to 40°C.
    Relative Humidity:  <90% at 35°C, non-condensing.
    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.
    • 1 Audio headphone jack.
    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.
  • Accessories +


    Detective trans-SPEC Hard Side CasePelican Transport Case. Rugged, waterproof, wheeled transport case. 

    Model Description
    DETECTIVE-EX-OPT-2

    DETECTIVE-EX-OPT-3
    Case with space for docking station

    Case with space for AC/DC Power Adapter/Charger (PAC-II)

    DETECTIVE-OPT-8 Detective Shoulder StrapShoulder Strap. Attaches to instrument for ease of carrying. One strap included with instrument.

    Model Description
    DETECTIVE-OPT-8 Shoulder Strap

    DETECTIVE-OPT-11 Detective Universal Plastic CoverUniversal Protective Plastic Cover. Package of 5.

    Model Description
    DETECTIVE-OPT-11 Universal Protective Plastic Cover

    DETECTIVE-OPT-13 Detective AC/DC Power Adapter/Charger PAC-IIAC/DC Power Adapter/Charger (PAC-II). Compact version of Docking Station, designed for convenient travel. Charges instrument battery and holds ready, charged for constant availability. Single cable output to instrument. Input from automobile or mains power using separate cables. Charging circuitry is internal. Does not include calibration check source which must be user-supplied if required, and does not provide forced air cooling to assist initial cooldown in high ambient temperatures. This does not affect use in high ambient temperature, but may affect initial cooldown of instrument. One AC/DC Power Adapter/Charger included with -PAC instrument model number. Dimensions 9.88” L x 7.48” W x 2.84” H, weight 3.55 lb.

    • Up to 40% faster battery charging than previous model.
    • Charges battery more fully; up to 30% longer battery life.
    • Auto sensing power input AC/DC, no switching
    • No degradation of resolution during charging.
    • Charge on/off switch eliminated from front panel.

    Model Description
    DETECTIVE-OPT-13 AC/DC Power Adapter/Charger

    M-1-T2 Tripod for DetectiveM-1-T2 Tripod.

    Model Description
    M-1-T2-100-VERT Variable length tripod and mounting hardware.

    DETECTIVE-OPT-15 Ultra Battery Extender with ChargerUltra Battery Extender with charger. Powers instrument, thereby HOLDING current state of charge of internal battery. Does NOT recharge Internal Battery. Battery life >8 hours. Hot swappable. Weight ~3 lb.

    Model Description
    DETECTIVE-OPT-15 Ultra Battery Extender.

    DETECTIVE-OPT-16 Detective Docking StationDocking Station II. Includes calibration check source and AC power supply. Cooling fans assist initial cool down from ambient temperature. Charging circuitry is internal to docking station. Docking station charges instrument battery and holds ready, charged and calibrated for instant availability. Single cable output to instrument. Input from automobile or mains power from separate cable assemblies. One docking station included with instrument.

    Note on Calibration Check Source: The calibration check source is internal to the docking station. It comprises a solid, sealed, ~0.25-µCi (9250-Bq) 137Cs calibration source housed in the source holder on the front of the docking station. This source is exempt under U.S. and European regulations and is only supplied pre-installed by ORTEC (not separately). It is not recommended that it be removed, and ORTEC will not accept any responsibility for its removal. If this source is NOT required with the instrument because of local issues, this must be stated at time of order. THE SOURCE CANNOT BE SUPPLIED SEPARATE FROM THE DOCKING STATION.
    • Up to 40% faster battery charging than previous model.
    • Charges battery more fully; up to 30% longer battery life.

    Model Description
    DETECTIVE-OPT-16 Docking Station

    Detective CollimatorDetective CollimatorOptional Collimators

    Model Description
    DET-100-COL-ST Steel Collimator, 4 mm thick
    DET-100-COL-W Tungsten Collimator, 4 mm thick
  • Learning Center +

  • Ordering Information +


    Model Description
    DETEX-100T-GP Portable HPGe Identifier (Gamma only). Includes GPS, docking station with calibration check source, universal mains supply, automobile power cables, and shoulder strap.
    DETDX-100T-PKG-2 Includes DETDX-100T-GP (GPS) Portable HPGe Identifier, docking station with calibration check source, universal mains supply, automobile power cables, shoulder strap, MAESTRO software and large wheeled transport case.
    DETDX-100T-PAC-GP Portable HPGe Identifier (Gamma only). Includes GPS, ac/dc power adapter/charger, automobile power cables, and shoulder strap. (No Check Source.)
    DETDX-100T-PAC-PKG2 Includes DETDX-100T-GP (GPS) Portable HPGe Identifier, ac/dc power adapter/charger, automobile power cables, shoulder strap, MAESTRO software and compact wheeled transport case.
    DETDX-100T-8-PAC-GP
    Portable HPGe Identifier (Gamma only), up to 8 MeV gamma energy range. Includes GPS, AC/DC power adapter/charger (PAC), automobile power cables, and shoulder strap.
    DETEX-100T-GP
    Portable HPGe Identifier (Gamma and Neutron). Includes GPS, docking station with calibration check source, universal mains supply, automobile power cables, and shoulder strap.
    DETEX-100T-PKG-2
    Includes DETEX-100T-GP (GPS) Portable HPGe Identifier, docking station with calibration check source, universal mains supply, automobile power cables, shoulder strap, MAESTRO software and large wheeled transport case.
    DETEX-100T-PAC-GP
    Portable HPGe Identifier (Gamma and Neutron). Includes GPS, ac/dc power adapter/charger, automobile power cables, and shoulder strap. (No Check Source.)
    DETEX-100T-PAC-PKG2
    Includes DETEX-100T-GP (GPS) Portable HPGe Identifier, ac/dc power adapter/charger, automobile power cables, shoulder strap, MAESTRO software and compact wheeled transport case.
    DETEX-100T-8-PAC-PKG2
    Portable HPGe Identifier (Gamma and Neutron), up to 8 MeV gamma energy range. Includes GPS, AC/DC power adapter/charger (PAC), automobile power cables, and shoulder strap.
    DETECTIVE-OPT-1-US
    DETECTIVE-OPT-1-UK
    DETECTIVE-OPT-1-EU
    12 Ah Battery Belt and Universal Charger with US Power Cord
    12 Ah Battery Belt and Universal Charger with UK Power Cord
    12 Ah Battery Belt and Universal Charger with Euro Power Cord
    DETECTIVE-OPT-2-US
    DETECTIVE-OPT-2-UK
    DETECTIVE-OPT-2-EU
    18 Ah Battery Belt and Universal Charger with US Power Cord
    18 Ah Battery Belt and Universal Charger with UK Power Cord
    18 Ah Battery Belt and Universal Charger with Euro Power Cord
    DETECTIVE-OPT-3
    Automobile Power Adapter to Docking Station (4-pin)
    DETECTIVE-OPT-4
    DETECTIVE-OPT-4B
    Docking Station AC Power Supply (8-pin)
    Docking Station AC Power Supply (4-pin)
    DETECTIVE-OPT-7
    Replacement Battery
    DETECTIVE-OPT-8
    Shoulder Strap
    DETECTIVE-OPT-11 Universal Protective Plastic Cover. Package of 5
    DETECTIVE-OPT-12
    Automobile Power Adapter to Instrument or AC/DC Power Adapter/Charger
    DETECTIVE-OPT-13
    AC/DC Power Adapter/Charger (PAC-II)
    DETECTIVE-OPT-15
    Ultra Battery Extender. Includes battery, charger, and cables
    931521
    Spare Battery for DETECTIVE-OPT-15
    DETECTIVE-OPT-16
    Docking Station II with calibration check source and AC power supply
    DET-100-OPT-17
    PSC TechniCART. Includes ISO-DCC carrier slide/plate and ISO-ADAPT-100
    DET-100-OPT-18
    Low Energy Gamma Ray Filter
    DET-100-COL-ST
    DET-100-COL-W
    Steel Collimator, 4 mm thick
    Tungsten Collimator, 4 mm thick
    DETECTIVE-EX-OPT-2 Pelican Transport Case with space for Docking Station
    DETECTIVE-EX-OPT-3
    Pelican Transport Case with space for AC/DC Power Adapter/Charger
    M-1-T2-100-VERT
    Variable length tripod and mounting hardware