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DOSE-X - Quick Start Guide

  • Updated

How to setup your new DOSE-X. Additional information can be found in the DOSE-X Instructions for Use and DOSE-X Reference Guide

 

Standard DOSE-X package:

  1. DOSE-X Electrometer
  2. Power cord set
  3. Instructions for Use

An optional carrying case is available

Buttons, Switches, and Connectors

  • Power button (1): Short-press to turn ON/OFF the device. LED ring (around the Power button)
    • Red: Device is powered on but not ready
    • Green: Device is done booting and ready for use
  • Power switch (2): turn ON/OFF the power supply
  • Main power supply input (3)
  • Ethernet port (4)
  • Bias Voltage Output (5)
  • Triaxial Connector (6): connects a compatible measurement device (e.g., ion chamber) to the channel
  • The USB port (7) allows the user to:
    • Export Measurements, Libraries, and Configuration data
    • Import Libraries and Configuration data
    • Install FW upgrades

 

Note: After the device is ready, if the LED ring turns Red, this indicates that there is an error

 

Main Display

  • Navigation bar (1):
    • Access the system settings, admin login, and detector / machine libraries via the Main Menu icon.
    • See Measurement History , Notifications , and current date and time.
    • A green figure indicates that the user is logged in as an Admin
  • Detector and measurement parameters (2)
  • Measurement results (3)
  • At the bottom of the screen (4) the user can:
    • Check the Background
    • Reset to take a new measurement or background
    • Start / Stop a measurement

 

Entering Information

The DOSE-X is controlled via the LCD touch screen. To enter information, an on-screen keyboard and number pad are available for easy text and value entry.

  • Tap on a field and the keyboard / number pad will open. Tap ENTER when you have finished.

Some fields have dropdown options.

  • Simply tap on the field to open the dropdown menu and select the correct value.

 Keyboard                                                                        Number pad                    Dropdown menu

 

Setup the Device

  • Take the DOSE-X out of storage and connect network cable, mains power cable, and detector cable.
  • Turn on the DOSE-X and wait for warm-up of the device. Warm-up time can vary (see Section 4.2 Device Warm-up in the DOSE-X Instructions for Use ):
    • 10 minutes if the device has been powered on from storage, but is acclimated to the environmet.
    • 1 minute if the device had been previously powered off for no more than 5 minutes.
  • During warm-up, the device will automatically run the Power-on Selftests. A pop-up will appear informing the user that the tests have finished. Tap OK.
    Note: Completion of the tests do not indicate that the warm-up is complete.
  • Select or enter the correct factors for the following. Please note, if performing a charge measurement, certain detector settings cannot be selected / edited and will be greyed out.
    • Select a Detector from the dropdown list. If no detectors are available, an Admin will need to add a detector. Ensure that the detector selected from the library is identical to the one which is physically connected to the DOSE-X. Double-check detector type and serial number.
    • Select a Machine from the dropdown list.
    • If Ionization (k_S correction factors) has been configured, and should be applied, select the applicable Dose rate (k_S) factor from the Ionization (k_S) menu.
    • If Energy (k_Q) correction factors have been configured, and should be applied, select the applicable k_S factor from the k_Q menu.
    • To apply kTp correction, configure temperature and pressure in the Temperature, Pressure (k_Tp) menu. The correction factor can be turned ON/OFF.
      Note: To confirm turning the correciton factor ON/OFF, tap the Enter button
    • Polarity Correction (k_pol) and User Correction (k_user):
      • Activate (or deactivate) application of a Polarity correction (k_pol) in the Polarity (k_pol) menu, the default is configured in the detector settings.
      • Activate (or deactivate) application of a user-specific additional correction (k_user) in the User Corr (k_user) menu, the default is configured in the detector settings.
    • Tap the Bias Voltage field to turn ON/OFF the High Voltage, change the Bias value, and select Floated or Grounded.
      Note: When turning the Bias Voltage ON/OFF or selecting Floated/Grounded, tap the Enter button to confirm.
    • For Sensitivity, select High (400fA – 600pA), Medium (6pA – 60nA), Low (2.4nA – 24μA), or Auto from the dropdown list.
      Note: For best performance, select the lowest range possible for the intended measurement while avoiding the saturation of the electrometer. Please see the respective detector manuals to determine the appropriate ranges and senitivities.
      If Auto is selected, the Automatic Range Detection dialog will open to determine the best sensitivity range for the selected detector and parameters.
    • Select Dose or Charge for the Measurement Type.
      To perform a purely electrical measurement (charge and current), select Charge from the menu. In this measurement mode, dose calibration and correction factors will be applied, and the display will be in electrical units.
    • Manual, Trigger, or Timer for the Measurement Mode.
      • Manual: the measurement can be started / stopped by pressing the START/STOP button.
      • Trigger: the measurement is activated / deactivated by pressing the START/STOP button.
      • Timer: the measurement will run for the selected amount of time.
  • Connect and pre-irradiate the detector (no user-interaction with the device).
  • Before performing a measurement, it is recommended to take a background measurement by tapping the Background button on the main screen.
    Press and hold the Background button to open the background settings. Here the user can:
    • Turn ON/OFF the Background Subtraction.
      • Set the default measurement value.
      • View the Backround and Beam on Threshold values.

 

Start a Measurement

  • Manual mode:
    • Tap the START button.
    • The DOSE-X begins the mesaurement.
    • Tap the STOP button when the measurment is complete.
  • Trigger mode:
    • Check that the Trigger Mode parameters are correct. (see System Settings menu).
    • Tap the START button. This activates Trigger mode.
    • When the input signal is above the Beam On Threshold for longer than Beam On Time duration, the DOSE-X will recognize the beam on point and start the integration of charge/dose measurement.
    • The DOSE-X will continue to take measurements in the defined beam ON/OFF interval.
    • Tap the STOP button when the measurement is complete.
  • Timer mode:
    • Select the measurement time via the dropdown menu on the Main screen.
    • Tap the START button.
    • The DOSE-X begins the measurement.
    • The measurement will run for the selected time
  • When the measurement is complete it will appear in the Measurement History.
    The display on the main screen provides two elements showing the measurement value:
    • The large number (1) shows the absolute charge or dose value (depending on the measurement type).
    • The smal number (2) shows the average electric current or dose (depending on the measurement type).

         Please note, the current displayed after a measurement is finished, is integrated charge to total                   measurement time.
         For information on the Range bar (3), see the Instructions for Use

  • Turn off the device, remove cables, bring the DOSE-X back into storage.