192X/192AX Digital Dosimeter

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Measures x-ray and Gamma Exposure/Exposure Rate

Take advantage of proven technology for all your dosimetry needs in radiation therapy and diagnostic radiology with the 192X and 192AX Digital Dosimeter. This proven electrometer measures both x-ray and gamma-ray energies.

192X and 192AX Digital Dosimeters perform many functions, including determination of beam quality (HVL), timer errors, depth-dose measurements, and x-ray head radiation leakage. In fluoroscopy, these dosimeters measure entrance exposure rates, table-top exposure rates, primary protective barriers, transmission and radiation scatter.

The digital display is provided by a 4-digit voltmeter with floating decimal point. Panel lights automatically indicate proper range without need for multipliers or range factors.


  • Provides QC of radiotherapy, x-ray, fluoroscopy and CT devices
  • Helps verify correct patient exposures in radiotherapy and diagnostic radiology
  • Range from 2 mR (mR/min) to 2000 R (R/min)
  • Automatic range indication
  • Background adjust, front-panel control nulls offset or leakage current
  • Multi-probe capability with family of ionization chambers
  • Calibrated at accredited dosimetry calibration lab(optional)


  • Power requirements: 117 VAC 50/60 Hz, 0.1A; 220 VAC50/60 Hz
  • Polarization voltage: +150V, -150V, +300V, -300V (user-selected)
  • Dimensions: 14" (35.5 cm) wide, 10.25" (26.0 cm) high, 7.5"(19.1 cm) deep, 14.5 lbs (6.5 kg)
  • Display mode ranges:
    Integrate: 2 mR to 2000 R
    Rate: 2 mR/min to 2000 R/min
  • Accuracy: ±0.5%
  • Precision: ±0.1% (of full scale)
  • Linearity: ±0.1%
  • Response time: 0.01 sec (in integrate mode)
  • Electrometer:
    Range: 2 to 2000 nC (nC/min)
    Resolution: 1.0 picocoulomb
  • Probe input: triaxial TNC connector
  • Cable assembly: 20’ (6 m) and 35’ (10.67 m), other lengths available
  • Noise lower limit: 0.001 mR/min

5230-3002 192X Dosimeter
5230-3068 192AX Dosimeter w/ Analog Output