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digiDART High Performance Portable Digital MCA

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digiDART High Performance Portable Digital MCA

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Brief description:High-performance and durable HPGe-class spectrometer, 16k channels

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Detailed introduction

DigiDART High Performance Portable Digital Multichannel Analyzer (MCA)
  • High-performance and durable HPGe-level spectrometer, 16k channels.
  • Digital Stability: Provides consistent results for long-term counting, changing count rates and temperature.
  • No need to connect to PC to run.
  • Built-in backlit LCD display and control keypad - displays acquired data in real time.
  • Energy calibration can be performed using the keypad
  • Nuclide ID and activity calculation for nine regions of interest (ROI).
  • High throughput - over 100,000 pulses per second.
  • Fits in hand or on belt.
  • The internal memory can store 23 16k scores (614 for 512 score files).
  • Battery life > 9 hours.
  • Only 860 grams including battery.
  • Fast USB communication.
  • Supports generation "SMART-1" HPGe radiation detectors and all other radiation detectors using DIM.
  • Provides spectral data validation.
  • Optional 32k channel resolution model
  • information +

    • Download link DigiDART brochure
    • Download link DigiDART Brochure (A4)
    • Download link DigiDart Manual
  • More information +


    ORTEC DigiDARTIt is a portableHPGemulti-channel analyzer. It is engineered for use in real-world portable gamma-ray spectroscopy measurement applications. From the onboard display to the ergonomic packaging, the entire design meets the needs of field spectrum measurement practitioners.

    ORTEC DigiDARTLiving up to expectations, it adopts a fully digital design with threeORTEC - greatly promotes portableMCAdevelopment.

    DigiDARTless than weight1160Gram is an attractive, lightweight instrument; easy to use and durable. The shell is moldedABSMaterial - The same material as the strong plastic widely used in cars. Like other tools, the exterior is coated with a shock-absorbing, non-slip, stain-resistant coating. The display and keyboard are recessed to protect them from damage if the instrument is dropped. The connectors are all on one side and are recessed for protection. The battery is inside - Extra protected and covered by a splash-proof battery cover. Even ifDigiDARTWhile running, its battery can also be charged on-site. The battery is truly integrated into the ruggedDigiDARTin, rather than simply clipping onto the back panel; exposed and prone to breaking. Replacing the battery is easy:  Simply open the battery cover to replace it.

    DigiDARTDisplay and keyboard

    DigiDARTAlthough controlled by a computer; it also features a built-in monitor and numeric keypad, making it a modern portableMCAhuge progress. The high-quality display and easy-to-use keyboard mean it can perform a variety of tasks without being connected to a computer

    For field applications,PCDifficult to carry and operate, but without a monitor you won't be able to see the spectrum or results.DigiDARTBuilt-in backlightLCDThe display panel and keypad provide you with the necessary data display and control. It has a clear spectrum display and can be started with simple keyboard input/Stop control operation. 

    DigiDARTThe spectrum display emulates theORTECvery successfulMAESTRO MCAemulator, this emulator is used in thousands of systems.240 x 160PixelLCDDisplay enables user to monitor acquisition process and instrument setup status without connectionPC. It has real-time spectrum display, peak information display and online activity calculation functions of the area of ​​interest.ROIDisplayed as a bar graph below the spectrum.
     
    Real-time activity calculation ...   No needPC!
    Just click a button,DigiDARTThe nuclide can be executed based on the internally stored calibration information.IDand activity calculations without using connectedPC. Everything is user controllable:  Library used for analysis, peak labels, unit labels and calibration parameters displayed. They can all passMAESTROEasily download toDigiDART, they can be changed in the field to suit your changing needs. Can be up to9Calculate activity for a list of nuclides. Spectral data can be saved and then analyzed by more sophisticated computer analysis packages such asGammaVision) to redo a more detailed analysis.

    Operation menu
    allDigiDARTBoth the screen and operations can be configured using the keypad and display. The operation is very simple - By numbers andEnterkey to select what you want from the displayed list. The main contents include: viewing status, inputID, nuclidesROIContent, peak information, selectionROI, select status contents, adjust controls, general settings and view memory contents. The complete list of all features has been given in the specifications section.

    Using the keypad and display, verification or changes can be made in the field without a host computerMCAsettings.

    protect
    Protecting your data is important, so the menus are password protected. Actions can be divided into two categories: users and administrators. The user password protects the instrument from unauthorized use. That is, you can protect the data stored in memory.ADMINorSetup(Settings) functions are protected by different administrator passwords.ADMINFeatures can only be changed by administrators to ensure results are based on correct parameters.

    Detector Interface Module (DIM) (SMART-1) (SMART-INTERFACE)SMART-1 HPGeRadiation detector support
    ORTECofSMART-1Detector technology isHPGeA major advance in radiation detectors and their operation.SMART-1Technology greatly ensures the integrity of the data and monitoring chain. This is a huge advance in detector management practices and data control.

    SMART-1 HPGeThe detector is very smart. Built-in controller monitors and reports on all important system functions. It provides individual characteristics as well as overall "health status". The detector controller identifies the devices: each device has its own identifying serial number. To further improve data integrity, the controller can even store verification codes and return them later to ensure data traceability.

    DigiDARTUse specialSMART-1"Health Status" (SOH) function to verify that the detector is operating normally during the entire data collection time. After the collection starts,DigiDARTClearSMART-1in the controllerSOHregister. During the data collection process,SMART-1The detector monitors all of its own "vital functions". If any of the monitored functions fall outside the specified value range (even if they subsequently return to normal), the condition is logged. At the end of the collection,DigiDARTWill readSOH, a warning message will be displayed if a problem is detected. No message means no problem was detected. asQApart of the process,SOHThe status is saved together with the spectral data inSPCin the file. anyCONNECTIONSprogram, and even user-developed packages can be passedDigiDARTreadSOHregister to complete the spectrumQA。

    UseSMART-1Radiation detector for verification 
    DigiDART/SMART-1The combination also ensures spectral authenticity. At the beginning of the collection,DigiDARTreadSMART-1The detector's serial number.DigiDARTRandomly generate a number and write itSMART-1detector. At the end of the collection,DigiDARTfromSMART-1The detector reads both numbers and compares the "stop" value to the "start" value. Exact matching ensures data integrity. with allORTEC MCAThe product is the same,DigiDARTYesCONNECTIONSpart of the architecture so these operations can be performed remotely over the network, allowingDigiDARTIdeal for unattended monitoring applications.DigiDARTandSMART-1A simple combination of detectors provides all this functionality and traceability.SMART-1The detector consists of the module shown in the figure, which containsHVand detector controller. These cables come natively with the instrument, are strain-relieved and sealed to prevent water penetration, and do not have high-voltage connectors, eliminating the need forHVAll connector related issues.

    Used for nonSMART-1 HPGeDetector interface module for radiation detectors
    For older nonSMART-1detector,DigiDARTThe system can be equipped with a detector interface module (DIM)。DIMincluding byDigiDARTcontrolledHV, and connect to the "usual" detector interfaces for preamplifier and high voltage.ORTECcan be done withDigiDARTAll detector types provided for use togetherDIM。DIMUse a single cable to connect toDigiDART。
  • Specifications +


    show

    240 x 160Pixel backlightLCDProvides real-time spectrum display, status information and analysis results.

    Full screen display and zoom mode

    Show multipleROI。

    status line

    User configurable parameter display. You can choose from two options: cursor energy, position, live time, remaining live time, remaining real time, remaining power, count rate,ROICount rate, count.
    Spectral display can be disabled via the connected computer using the administrator function.

    energy calibration

    channel andFWHMTwo-point energy calibration.

    Online activity calculation

    Can be up to9Activity and uncertainty are calculated online for a user-defined area and displayed on the screen. Activity is obtained by dividing the net count rate by a user-supplied efficiency factor.

    Default

    Live time, real time, integrated peak count, peak count, uncertainty and multinuclidesMDA. Can specify up to20nuclideROI. when all are satisfiedMDACollection will stop when requested. real time/living time for1Multiples of seconds.

    keyboard

    20numbers and function keys. manyDigiDARTFunction keys are multi-function keys. The specific function depends on the state of the key when it is pressed. When the device passesUSBThe keyboard is locked when connected to the computer.















    Menu function

    Pressing the Menu button while the spectrum is displayed displays the main menu.

    View status

    Show all majorMCASettings, including: live time, real time, dead time, battery voltage, bias voltage, fine gain, coarse gain, rise time, flat top, baseline recovery[BLR]settings.

    inputID

    Used to enter the numbers contained in the spectrumIDinput dialog box.

    nuclideROI

    View the nuclide report and the settings menu for the nuclide report. for all9aROIEnter the following: Activate/Disable, label (text), unit (text), starting channel, number of channels, area multiple, clear thisROI, displays these settings.

    status line

    Set the status line at the top of the spectrum display to display any two of the following parameters: cursor position (energy), cursor position (channel), live time, real time, remaining live time, remaining real time, remaining battery, count rate,ROICount rate, marker channel count.

    Peak information

    Displays the center lane of the area determined by the marker position,FWHM, net count and gross count. Access is denied when the spectrum display is locked.

    Adjust controls

    A dialog box showing the following content:
    • High voltage setting:Review and set the following:enableHV, set bias voltage, set shutdown mode, view currentHVvalue, viewSOH。
    • Amplifier settings:Review and set the following:Coarse gain, fine gain, rise time, flat top, pole and zero, baseline recovery, optimization, preamp type, input polarity.
    • Default settings:Review and set the following:Live time preset, real time preset,ROIPoints default,ROIPeak preset, uncertainty preset,MDADefault.
    •ADCSettings:Set conversion gain,LLD、ULDand gate.
    •Stable settings:Enable, view and set gain and zero stabilizers.

    General settings

    Change user password
    Change administrator password
    Enter password
    Lock spectrum display
    Auto compare: enable or disable
    Calibration: Enter or view calibration
    show
    Adjust the vertical scale to automatic,Logor normal
    Set mode toPHA
    View settings

    spectrum register

    Retrieve, list or erase stored spectra.






























    Multi-channel analyzer (
    MCA)

    System throughput

    >100,000 cps

    System gain settings

    •Coarse gain adjustment:1、2、4、8、16or32
    •Fine-tune the gain:0.45Than1
    •Based on its available range of gain settings, the system is suitable for all types ofHPGedetector. Specifically, the following full-scale energy ranges are achieved (assuming standardORTECpreamplifier):

    COAX

    187 keVto12 MeV

    LO-AX

    94 keVto6 MeV

    GLP/SLP

    16.5 keVto1 MeV

    IGLET-X

    8 keVto500 keV

    preamplifier

    Select resistor orTRPPreamplifier.

    System conversion gain

    System conversion gain is software controlled and standard models are available at512to16kadjustments between channels, while the optional-32Models available at512to32kAdjust between channels.

    Digital filter shaping time constant

    •Rise time:0.8 μsto20 μs, the step size is0.2 μs。
    •Flat top:0.5to2.0, the step size is0.1 μs

    Dead time correction

    According toGedcke-HaleMethod for extended live time correction. Accuracy:Reference area peak value per second0Arrive50,000Variation between counts ±3%。

    Linear

    •Integral nonlinearity:Use a mixed source (55Fe @ 5.9keVto88Y @ 1836keV) measurement, in front of the spectrum99.5%<±0.025%。
    •Differential nonlinearity:<±1% (usingBNCpulser and ramp generator measurements).
    •Digital Spectrum Stabilizer: Stabilizes gain and gain through computer control.

    System temperature coefficient

    •Gain:<35 ppm/°C。[Usually30 ppm/°C。]
    •Offset:<3 ppm/°C, the rise and fall times are12 μs, the flat top is1 μs. (similar to simulation6 μsplastic surgery. )

    Pulse accumulation rejector

    Automatically set thresholds. Pulse pair resolution is typically500 ns。

    Automatic digital zero adjustment

    Computer controlled (U.S.5,872,363). Can be set automatically or manually. PassInsightOscilloscope mode for remote diagnostics.

    Digital gated baseline restorer

    Computer controlled recovery rate adjustment (high, low and automatic)

    LLD

    Set a digital low level discriminator on the channel.LLDSets the following hard truncation of data in the channel.

    ULD

    Set a digital high level discriminator on the channel.ULDSet up hard truncation of data in the channel above.

    Count rate table

    MCAand/orPCThe count rate is displayed on the screen.

    battery

    The individual cells are inserted into the housing through the battery cover. The battery compartment is semi-sealed and dust-proof and moisture-proof. The battery can be replaced without losing data or recharged on site without tools.
    •Battery life:Use a fully charged SonyNP-F970and standardsORTECResistive feedback preamplifier up to14hours.
    •Battery type:Lithium-ion camera batteries. sonyNP-F970(7.2 V 47.5 Whours).





































    input and output

    detector

    Multi-pin connector with the following functions:
    •Preamp power:1 W(+12 V,-12 V,+24 V,-24 V,2 GND)
    •Amp In:amplifier input.
    •TRPinhibit
    •Battery power:(5-12 V), used forHVmodule.
    •HVandSMART-1Detector controls:(2line).

    USB

    used forPCUniversal Serial Bus for communication.

    power supply

    DC power supply. (+12 V dc <1.25 A)(DigiDARTInternal charging circuit and battery management circuit).













    electrical and mechanical

    Size

    8inches x 5inches x 3inches (20.32 x 12.7 x 7.62 cm)

    weight

    1150grams, including battery (2.5pounds)850Gram, without battery (1.9pounds)

    Operating temperature range

    -10to60°C, includingLCDdisplay.

    Radiation detector high voltage power supply

    SMART-1

    HVThe module and the radiation detector itself are an integrated structure.

    NotSMART-1

    For "traditional" or "non-SMART-1"Detector,HVThe power supply adopts the detector interface module or with2meters of cable"DIM"Form.DIMThere is a mating connector for the traditional detector cable set:9needleDtype preamp power cord, analog input, shutdown input, bias output, and inhibit input.

    NotSMART-1detector'sDIMSAvailable with the following high voltage options:
    •DIM-POSGE: used for any non-SMART-1Positive biasHPGeDetector interface module for radiation detectors.
    •DIM-NEGGE: used for any non-SMART-1negative biasHPGeDetector interface module for radiation detectors.
    •DIM-POSNAI: for any positive biasNaIDetector interface module for radiation detectors.
    •DIM-296:with296typeScintiPacktube base/preamplifier/Detector interface module with bias supply for use with14needle10grade photomultiplier tubeNaIRadiation detector.

    Front panel display

    In all cases, the bias voltage and shutdown polarity are set from the computer.DSPEC LFCan monitor output voltage and off status; detector high voltage value (read only); and detector high voltage status (on/off) (read/write), these are displayed on the front panelLCDOn. In addition,SMART-1The detector provides additional "health" information by monitoring the following functions: detector temperature (read only); detector overload status; detector verification code (read/write); and detector serial number (read only).




















  • Ordering information +


    Model

    Description

    DIGIDART

    DigiDART, bringMAESTROsoftware,2cable, battery and charger, operating manual, instruction card andUSBDrive manual. NoneDIM, for use withSMART-1detector.

    DIGIDART-POSGE

    withDIM-POSGEdetector interface moduleDigiDART, used for non-SMARTPositive biasHPGedetector

    DIGIDART-NEGGE

    withDIM-NEGGEdetector interface moduleDigiDART, used for non-SMARTnegative biasHPGedetector

    DIGIDART-POSNAI

    withDIM-POSNAIdetector interface moduleDigiDART, for positive biasNaIdetector

    DIGIDART-R-POSNAI

    withDIM-POSNAIdetector interface moduleDigiDART, for withRS-232-CPositive bias for communicationNaIdetector

    DIGIDART-296

    withDIM-296detector interface moduleDigiDART, used forNaIdetector

    DIGIDART-32

    bringMAESTROsoftware, noneDIMof32kchannelDigiDART, for use withSMART-1detector.

    DIGIDART-32-POSGE

    withDIM-POSGEdetector interface moduleDigiDART-32, used for non-SMARTPositive biasHPGedetector

    DIGIDART-32-NEGGE

    withDIM-NEGGEdetector interface moduleDigiDART-32, used for non-SMARTnegative biasHPGedetector

    DIGIDART-32-POSNAI

    withDIM-POSNAIdetector interface moduleDigiDART-32, for positive biasNaIdetector

    DIGIDART-32-296

    withDIM-296detector interface moduleDigiDART-32, used forNaIdetector

    DIGIDART-OPT1

    Backup high capacity battery

    DIGIDART-OPT2

    battery charger110-240 V 50/60 Hz

    DIGIDART-OPT2E

    battery charger110-240 V 50/60 Hz,CECertification applies to Europe

    DIGIDART-OPT3

    On-site kit:suspenders/Belt, automatic adapter, universal power adapter; spare battery

    DIGIDART-OPT4

    RS-232Communication options (contact manufacturer)

    OthersDIM

    DIM-POSGE

    Used for nonSMARTPositive biasHPGeDetector Interface Module for Detectors

    DIM-NEGGE

    Used for nonSMARTnegative biasHPGeDetector Interface Module for Detectors

    DIM-POSNAI

    for positive biasNaIDetector Interface Module for Detectors

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