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Detective DX1 Next Generation, Ultra High Resolution HPGe Radioisotope Identification Device

DX1What is the ORTEC Detective DX1?

The ORTEC Detective DX1 is a next-generation, portable High Purity Germanium (HPGe) Radioisotope (RID) designed for the field professional who needs lab-grade accuracy in a handheld form factor. Built on the proven legacy of the Detective-X, the DX1 delivers improved detector resolution, an expanded nuclide library of over 175 radionuclides, and modern cybersecurity architecture- making it the most capable RID available for homeland security, border protection, emergency response and nuclear incident investigations.

Unlike Nal-based detectors, the DX1's HPGe technology provides significantly higher energy resolution enabling confident identification of complex, shielded, or mixed radioactive sources that lower-resolution detectors may misidentify.

  • Detection and identification
    Identify with confidence even in complex real-world conditions.
    The DX1's HPGe detector delivers the highest energy resolution available in a portable RID. This means you can distinguish between closely overlapping gamma ray signatures, a critical advantage when sources are shielded, mixed, or present in low concentrations.
  1. 175+ radionuclide library, including newly added radiopharmaceuticals so field professionals aren't caught off guard by medical isotopes triggering false alarms
  2. Threat versus innocent classification built into the identification algorithm, reducing operator decision fatigue in high pressure scenarios
  3. Shielded source detection, identify radioactive materials, even when deliberately concealed
  • User Experience
    Designed for the field, not the lab.
  1. 5-inch capacitive touch screen- high brightness glove friendly responsiveness for outdoor and low light operations
  2. Intuitive UI - operators familiar with ORTEC's legacy platforms require minimal retraining
  3. Improved weight distribution- reduces fatigue during extended field deployments
  • Technology and cyber security
    Built for the threat environment, physical and digital.
  1. Secure boot, built-in firewall and static code vulnerability analysis- Meets modern government cyber security requirements.
  2. WLAN. (802.11 b/g/n), Bluetooth 5.1 and GigaBit Ethernet- Seamless integration into command-and-control networks.
  3. GPS plus Galileo dual constellation- Precise location tagging on every measurement.
  4. Uninterrupted operation during cooldown or warm up cycles- No data loss, no operational gaps in time critical deployments.
 
  • Who uses the DX1? +


    User

    Use case

    Why DX1?

    Homeland Security agencies

    Nuclear threat detection at ports, borders, and events

    HPGe resolution identifies shielded SNM that Nal misses

    Law enforcement

    Responding to radiological incidents

    Sleuth mode simplifies operation for non- specialist responders

    Emergency response teams

    Post-incident nuclear scene assessment

    Rugged design plus uninterrupted operation during temp cycles

    Border Protection

    Screening cargo and vehicles

    175+ nuclide library prevents medical isotope false positives

    Nuclear regulatory bodies

    Field verification and compliance

    Lab grade accuracy in a portable platform

    Military/Defense

    Radiological threat assessment in austere environments

    Cyber security features+ military battery compatibility


  • DX1 vs. Nal-based RIIDs +


    Capability

    ORTEC DX1 HPGe

    Typical RIID

    Energy resolution

    <0.3% @1.33MeV

    ~7-8% @ 662 keV

    Shielded Source ID

    Yes

    Limited

    Mixed source separation

    Yes

    Often fails

    False alarm rate

    Very low

    Comparable

    Startup time

    Instant, when in a cooled state

    Instant

    Field portability

    Handheld

    Handheld

    Best for

    Complex ambiguous threats

    Rapid screening


  • DX1 vs. Detective- X +


    Feature

    Detective DX1

    Detective-X

    Detector Resolution

    Improved

    Standard

    Radionuclide Library

    175+ (inc’radiopharmaceuticals)

    Smaller library

    Touchscreen

    5” capacitive, high brightness

    4.3” WQVGA

    Cybersecurity

    Secure boot, firewall, code analysis

    Basic

    Connectivity

    WiFi + BT 5.1 + Gigabit Ethernet

    Limited

    OS/Software

    Modern Linux platform

    Legacy WinCE platform

    Operational Continuity

    On/off during temp cycles

    Not supported


  • Literature +


    Detective DX1 Brochure

    DX1 Manual
  • Nuclide Library +


    The Detective DX1 has a very comprehensive nuclide list. A subset of the entire nuclide library is the default “Threat Isotopes”; these are marked in RED. The advanced user is able to add any of the nuclides marked in GREEN to the list of red-marked threat isotopes. The color coding in the table shows the default background screen colors and visual alarms the instrument will present when these nuclides are encountered. 

    2235 keV Peak Present
    Am-241
    Am-241 (shielded)
    Am-241 (unshielded)
    Neutrons
    Cf-252/Cf-249
    Enriched Uranium
    Geiger Muller CR
    HEU
    Neutrons
    Neutrons on Al
    Neutrons on Boron
    Neutrons on Fe
    Neutrons on Hydrogen
    Neutrons on Pb
    Neutrons or H.E. Gammas
    Np-237
    Pu-238
    Pu-239
    Radiation Detected
    U-232
    U-233

    U-235
    U-238
    Unknown Peak
    Unknown/Beta Emitter
    1001 keV Peak Present
    186 keV Peak Present
    2614 keV Peak Present
    356 keV Peak Present
    375/414 keV Peak Present
    662/722 keV Peak Present
    Ac-225
    Ac-227
    Ag-110m
    Ar-41
    As-72
    As-74
    At-211
    Au-198
    Ba-133
    Ba-140
    Be-7
    Beta Emitter
    Bi-207
    Bi-212 (Th232/U232 daughter)
    Bi-214 (Ra226 daughter)
    Br-76
    Br-76 (shielded)
    Br-76 (heavily shielded)
    Br-77
    Ca-47
    Cd-109
    Cd-115

    Ce-139
    Ce-141
    Ce-144
    Cm-242
    Cm-243
    Cm-244
    Co-56
    Co-56 (shielded)

    Co-55
    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-154
    Eu-155
    Eu-156
    Fe-18
    Fe-59

    Ga-64
    Ga-64 (shielded)

    Ga-67
    Ga-67 (shielded)
    Ge-68/Ga-68
    Gd-153
    Gd-159
    Hf-181
    Hg-203
    Ho-166m
    Ho-166m (shielded)
    Ho-166
    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-92
    N
    b-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-97
    Ru-103
    Ru-106/Rh-106
    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
    Sr-85/Kr-85
    Sr-89
    Suspect Neutrons
    Ta-182
    Tc-96

    Tc-99m
    Te-132
    Tl-201
    Tl-200
    Tl-202
    Tl-204
    Th-229
    Th-230
    Th-232
    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-65
    Zn-62
    Zr-95 
  • Sleuth Mode Interface +


    The DX1Sleuth App has the same functionality as the Detective-X Sleuth interface, with improvements to the UI afforded by the new OS and SW platform. Users familiar with the Detective-X version of Sleuth will have an easy transition to the new DX1 app.

    The Sleuth Mode user interface is simple and easy-to-use. It is designed for users who may use the instrument infrequently and need to take quick nuclide ID measurement and provide data to reachback organizations

    The Sleuth App features:

    • A simplified user screen for users who are not experts in gamma spectroscopy.
    • The ability to stop or pause a count and restart that count.
    • Prompts to assist the user in determining the optimal distance to the Item of Primary Concern (IPC) for measurement.
    • Simple touch screen buttons for ease of use.
    Sleuth Mode is easy to learn, and simple to use, for users such as state and local law enforcement who may not use this type of instrumentation every day.

    Sleuth minimizes the opportunity for errors in situations where operators must multi-task to quickly and accurately assess the threat level posed by an Item of Primary Concern (IPC).

    Because of its limited user interface, Sleuth can greatly simplify training protocols for operators as well.
    DX1 1
    DX1 2
    DX1 3
  • RAPiD App +


    The DX1 RAPiD App has the same functionality as the Detective-X RAPiD interface, with improvements to the UI afforded by the new OS and SW platform. Users familiar with the Detective-X will have an easy transition to the DX1 RAPiD app.

     

    The RAPiD (Radiological Assistance Program iDentification) application is designed to meet specific customer needs to streamline data collection while minimizing pesky alarm notifications.


    RAPiD Features Include:

    • Survey Mode screen provides an accessible view of the count rate, status, dead time, and GPS location.
    • Monitor Mode screen offers easily viewable count rates, dead time readings, and GPS coordinates.
    • ID Mode screen displays the elapsed count time and identified nuclide(s).
    • Continue data collection after the identification preset time has been reached.
    • Completely pause data collection.
    • Exit ID Mode without saving the results at the end of the measurement if desired.
    • Choose local time instead of Zulu or CMT time.
    • Recall a spectrum stored in the instrument and inspect the details (including viewing the actual spectrum).

     DX1 4
    DX1 5
    DX1 6
  • Calibration Service +


    ORTEC provides a NIST traceable Calibration Certification with the measurements all within ±10% for ten dose rates from .01 mR/hr to 2000 mR/hr. The total measurement uncertainty with all systematic sources of error included is less than ±20%. A certified Calibration Certificate is provided. The dose rate calibration is warranted for one year.

    Ordering Information: Order model DX1-DOSE-CALIB

  • Learning Center +

  • Ordering Information +


    DX1

    Next Generation 3 MeV Portable High Efficiency HPGe Identifier

    DX1-N

    Next Generation 3 MeV Portable High Efficiency HPGe Identifier with Neutron Detector

    DX1-8

    Next Generation 8 MeV Portable High Efficiency HPGe Identifier

    DX1-8-N

    Next Generation 8 MeV Portable High Efficiency HPGe Identifier with Neutron Detector

    DX1-ACC-2590-CABLE

    Battery Cable from Military 2590 Battery

    DX1-ACC-BAT

    Lithium-Ion Battery

    DX1-ACC-COL-ST

    Steel Collimator 4mm Thick

    DX1-ACC-COL-W

    Tungsten Collimator 4mm Thick

    DX1-ACC-DUAL-CHGR

    Standalone Dual Battery Charger and Calibrator

    DX1-ACC-MANUAL

    User’s Manual

    DX1-ACC-PS

    Universal AC Mains Power

    DX1-ACC-RCFILTER

    Low Energy Gamma Filter

    DX1-ACC-TH-CAL

    Thoriated Tungsten Electrodes

    DX1-ACC-TRANSPORTCASE

    Wheeled Transport Case

    DX1-ACC-USBFLASH

    USB Mini Flash Drive

    DX1-ACC-VEHCHGR

    Vehicle Power Adapter Cable

    DX1-ACC-SHOULDER-STRAP

    Shoulder Strap with Stylus and Retractable Cord

    DX1-ACC-RESERVE-COVER

    Connector Dustcap 12mm

    DX1-ACC-STYLUS

    Stylus

    DX1-ACC-NEUTRON DETECTOR

    Neutron Detector

    DX1-ACC-TRIPOD

    Variable Length Tripod

    DX1-ACC-MOUNT-BRKT

    Vertical Mounting Bracket for Tripod

    DX1-ACC-TRIPOD-WITH-BRKT

    Variable Length Tripod with Vertical Mounting Bracket

    DX1-ACC-EXT-BATT

    External Military 2590 Battery, Charger and Cable

    DX1-OPT-RFSECURE

    Removal of WiFi, Bluetooth, and GPS signal capability from DX1

    DX1-ACC-SCREEN-PROTECT

    Replacement Screen Protector


  • FAQ +


    1. What is the Detective DX1 Next Generation, Ultra High Resolution HPGe Radioisotope Identification Device?

    The DX1 is a high resolution, portable High Purity Germanium (HPGe) Radioisotope Identification Device (RID) that provides ultra-high resolution gamma spectroscopy and precise isotope identification in field environments. It is designed for field use in security, emergency response, nuclear safeguards, and radiation detection applications.
    Built on the proven legacy of Detective platform, the DX1 improves energy resolution, isotope discrimination, ergonomics, cybersecurity protection, and overall field usability.

    2. What are the key performance advantages of the Detective DX1?

    The DX1 delivers high resolution gamma spectroscopy using High Purity Germanium (HPGe) technology for highly accurate radioisotope identification in field operations. It provides superior energy resolution compared to conventional radiation detectors, enabling confident identification of complex or shielded radionucleotides.
    The DX1 also includes an onboard library of over 175 radionuclides, advanced digital electronics, and enhanced signal processing to support nuclear security, nuclear safeguards, and emergency response applications in demanding environments.

    3. What display and interface improvements does the Detective DX1 offer?

    The DX1 features a 5-inch-high brightness capacitive touchscreen with smartphone-like responsiveness and excellent sunlight readability for field operations. Its modernized user interface enables intuitive navigation, faster isotope analysis workflows, and improved operational efficiency.
    The new Dose Rate Mode interface design is inspired by ORTEC's Radeaglet-R platform, providing a familiar, user-friendly experience for radiation detection and nuclear security professionals.

    4. What connectivity options are available on the Detective DX1?

    The DX1 supports wireless and wired connectivity for secure data transfer and field communication. It includes WLAN (802.11 b/g/n), Bluetooth 5.1, Gigabit Ethernet, and USB Type C connectivity for flexible integration with command systems and analysis platforms.
    The DX1 also features built-in GPS and Galileo positioning to provide accurate geolocation data during radiation detection, nuclear security, and nuclear safeguards operations.

    5. Does the Detective DX1 support uninterrupted operation during detector cooling or warm-up?

    Yes. The DX1 is engineered to allow safe power cycling at any time during the high purity germanium (HPGe) detector cooldown or warm up process without risking performance degradation. This design ensures uninterrupted operational readiness in field-based radiation detection and nuclear security applications.
    The DX1 maintains system stability and detector integrity throughout temperature transitions, reducing downtime and improving mission reliability.

    6. What cybersecurity features are included in the Detective DX1?

    The DX1 includes enterprise-grade cybersecurity protections designed for secure field deployment. It features secure boot, a built-in firewall, static code vulnerability analysis, and validated onsite operating system and software updates to meet modern cybersecurity standards.
    The DX1 runs on a hardened embedded Linux operating system that protects against unauthorized access, supports secure radiation detection workflows, and ensures data integrity in nuclear security and nuclear safeguards environments.

    7. How are the ergonomics and durability of the Detective DX1 improved?

    The DX1 features an ergonomic redesign that improves weight distribution, stability and long-term durability for field-based radiation detection. A relocated handle enhances balance during operation, reducing operator fatigue.
    The DX1 also includes a reinforced chassis, hardened steel connections, and upgraded rubber feet to increase stability and extend equipment lifespan in rugged nuclear security and emergency response environments.

    8. What applications are the Detective DX1 ideal for?

    The DX1 is ideal for nuclear security, threat detection, emergency response, border screening, scientific measurement, and radiopharmaceutical identification. It functions as a high resolution nuclear radiation detector using high purity germanium (HPGe) technology for precise radioisotope identification in complex field environments.
    With its advanced spectroscopy performance and extensive nuclide library, the DX1 supports mission-critical detection and nuclear safeguards operations requiring accurate and defensible results.

    9. What radionuclide identification capabilities does the Detective DX1 provide?

    The Detective DX1 provide advanced radioisotope identification using gamma spectroscopy powered by a high purity Germanium (HPGe) detector. It includes a comprehensive nuclide library of 175+ isotopes, including newly added radiopharmaceuticals, enabling precise identification of threat, industrial, environmental, and medical radionuclides.
    This capability supports nuclear security, nuclear safeguards, emergency response, and scientific radiation applications that require accurate and defensible isotope analysis.

    10. How does the Detective DX1 improve user workflow in the field?

    The DX1 improves field workflow by simplifying radioisotope identification and radiation detection tasks through intuitive software tools and a high visibility touchscreen interface. Features like Easy ID, Dose Rate Mode, and streamlined menus reduces the time required to perform identification and analysis tasks.
    Its outdoor-optimized capacitive touchscreen and user-centered interface design enhance speed, accuracy, and operational efficiency in nuclear security and emergency response environments.