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DoseG-and-DoseGX
DoseG-and-DoseGX
DoseG-and-DoseGX
DoseG-and-DoseGX
DoseG-and-DoseGX

Electronic Personal Dosimeter

EPD-27 DoseG and DoseGX

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DoseG and DoseGX represent a new EPD-27 family of electronic personal dosimeters from ECOTEST trademark.

The devices are intended for use as part of an automated system of individual dosimetric control and for autonomous use. EPD-27 dosimeters are available in two modifications – DoseG and DoseGX.

To obtain information about our products during the preparation of tender or contractual documentation, please contact our representatives via the provided contacts. We continuously improve our products and expand their functionality in line with market needs by applying the latest technologies, modern components, and materials. Therefore, specifications, descriptions, and configurations are subject to change without prior notice.

Features

  • Scintillator-based detectors with a silicon photomultiplier
  • Ability to store data in non-volatile memory
  • Sound, light, and vibration alarms of threshold levels exceeding
  • Infrared port for transferring the dose accumulation history and event history from the dosimeter to the personal computer, as well as for setting up the dosimeter
  • Glass-filled plastic shock-resistant housing of high ingress protection rating IP67
  • Backlight of the digital display
  • Resistant to 60 repetitive shocks, each corresponding to a drop of 10 cm on a hard steel surface, and resistant to 6 drops (one drop on each side) from a height of 1 m on a hard surface

Purpose of use

  • Measurement of individual dose equivalent (DE) of gamma and X-ray radiation
  • Measurement of individual dose equivalent rate (DER) of gamma and X-ray radiation
  • Monitoring of time spent in the control zone
  • Maintaining an automated database of dose load on personnel as part of the software and hardware complex (unified) automated system of individual dosimetric control of personnel

Additional information

  • When purchasing a batch of dosimeters for use in the automated dose control system for a large number of users, it is possible to additionally supply charging and storing devices (can charge up to 40 dosimeters at a time) and the unified access station with the appropriate software for programming/reading dosimeters (at extra cost)
  • When purchasing a batch of dosimeters for use in the automated dose control system for a small number of users, it is possible to additionally supply the USB/IrDA adapters with appropriate software for programming/reading/charging dosimeters (at extra cost)

Delivery kit

  • electronic personal dosimeter
  • operating manual
  • package

Note. The SCD, UAS, USB/IrDA adapters, and software are not included in the dosimeter delivery kit and are supplied separately upon request.

Specifications
Key metrological and technical data and specifications of EPD-27 “DoseG” dosimeter
Measurement and indication range of gamma radiation DE
1∙10-7 ... 10 Sv
Main relative permissible error limit when measuring gamma radiation DE at 137Cs calibration with a confidence probability of 0.95 within the range of 1∙10-6 Sv to 10 Sv
15 %
Measurement and indication range of gamma radiation DER
1∙10-6 ... 10 Sv/h
Main relative permissible error limit when measuring gamma radiation DER at 137Cs calibration with a confidence probability of 0.95:
– in the range from 1∙10-5 Sv/h to 1∙10-3 Sv/h (inclusive)
20 %
– in the range from 1∙10-3 Sv/h to 10 Sv/h
15 %
Energy range of detected gamma radiation
0.05 ... 10 MeV
Energy dependence when measuring gamma radiation DER and DE relative to 0.662 MeV (137Cs) energy, not more than:
– in the energy range from 0.05 MeV to 1.25 MeV (inclusive)
±20 %
– in the energy range from 1.25 MeV to 10 MeV
±40 %
Anisotropy when gamma radiation falls in directions at angles from minus 60о to 60о in the horizontal and vertical planes relative to the main (perpendicular to the front panel of the dosimeter) measurement direction, not more than:
- for 137Cs and 60Co radionuclides;
25 %
- for 241Am radionuclide;
60 %
Complementary relative permissible error limit of photon-ionizing radiation DER and DE measurement result caused by ambient temperature deviation from 20 oС, in the temperature range from -20 to +50 oС
5 per each 10 оС of deviation from 20 оС
Operating supply voltage of the dosimeter from Li-Po battery with a capacity of at least 400 mAh
3.7 V
Time of continuous operation under normal climatic conditions when powered from a fully charged battery, not less than:
– under the conditions of measurement of gamma radiation DER not more than 0.5 μSv/h and with switched off LCD backlight, switched off sound and vibration alarm
170 hrs
– under the conditions of measurement of gamma radiation DER equal to 1 Sv/h and with switched on LCD backlight, switched on sound and vibration alarm
4 hrs
Unstable readings of the dosimeter during 8 hours of continuous operation, not more than
5 %
Mean life of the dosimeter (including repairs), not less than
10 year
Mean time to failure, not less than
6 000 hrs
Average life of the dosimeter till the first major repair, not less than
10 000 hrs
Climatic conditions of the environment:
– temperature
-20 ... +50 оС
– relative humidity at a temperature of 35 °C
95 ± 3 %
– atmospheric pressure
84 ... 106.7 kPa
Dimensions of the dosimeter with a clip, not more than
84.5 x 55 x 24.5 mm
Weight without packaging, not more than
0.11 kg
Class of external electromagnetic conditions according to DSTU OIML D 11:2018
E2
lass of external mechanical conditions according to DSTU OIML D 11: 2018
M1
Key metrological and technical data and specifications of EPD-27 “DoseGX” dosimeter
Measurement and indication range of gamma radiation DER
1∙10-6 ... 10 Sv/h
Measurement and indication range of X-ray DER
1∙10-6 ... 1∙10-1 Sv/h
Main relative permissible error limit when measuring photon-ionizing radiation DER at 137Cs calibration with a confidence probability of 0.95:
– in the range from 1∙10-5 Sv/h to 1∙10-3 Sv/h (inclusive)
20 %
– in the range from 1∙10-3 Sv/h to 10-1 Sv/h
15 %
– in the range from 1∙10-1 Sv/h to 10 Sv/h
15 %
Measurement and indication range of gamma and X-ray radiation DE
1∙10-7 ... 10 Sv
Main relative permissible error limit when measuring gamma and X-ray radiation DE at 137Cs calibration with a confidence probability of 0.95 within the range of 1∙10-6 Sv to 10 Sv
15 %
Energy range of detected gamma radiation
0.05 ... 10 MeV
Energy dependence when measuring gamma radiation DER and DE relative to 0.662 MeV (137Cs) energy, not more than:
– in the energy range from 0.05MeV to 1.25 MeV (inclusive)
±20 %
– in the energy range from 1.25MeV to 10 MeV
±40 %
Energy range of detected X-ray
12 ... 200 keV
Anisotropy when gamma radiation falls in directions at angles from -60о to 60о in the horizontal and vertical planes relative to the main (perpendicular to the front panel of the dosimeter) measurement direction, not more than:
- for 137Cs and 60Co radionuclides;
25 %
- for 241Am radionuclide
60 %
Energy dependence when measuring Xray DER and DE relative to 0.662 MeV (137Cs) energy, not more than
-30 ... +35 %
Complementary relative permissible error limit of photon-ionizing radiation DER and DE measurement result caused by ambient temperature deviation from 20 oС, in the temperature range from -20 to +50 oС
5 % per each 10 оС of deviation from 20 оС
Operating supply voltage of the dosimeter from Li-Po battery with a capacity of at least 400 mAh
3.7 V
Time of continuous operation under normal climatic conditions when powered from a fully charged battery, not less than:
– under the conditions of measurement of gamma radiation DER not more than 0.5 μSv/h and with switched off LCD backlight, switched off sound and vibration alarm
170 hrs
– under the conditions of measurement of gamma radiation DER equal to 1 Sv/h and with switched on LCD backlight, switched on sound and vibration alarm
4 hrs
Unstable readings of the dosimeter during 8 hours of continuous operation, not more than
5 %
Mean life of the dosimeter (including repairs), not less than
10 year
Mean time to failure, not less than
6 000 hrs
Average life of the dosimeter till the first major repair, not less than
10 000 hrs
Climatic conditions of the environment:
– temperature
-20 ... +50 °C
– relative humidity at a temperature of 35 °C
95 ± 3 %
– atmospheric pressure
84 ... 106.7 kPa
Dimensions of the dosimeter with a clip, not more than
84.5 x 55 x 24.5 mm
Weight without packaging, not more than
0.11 kg
Class of external electromagnetic conditions according to DSTU OIML D 11:2018
E2
Class of external mechanical conditions according to DSTU OIML D 11: 2018
M1
Support
Operating Manual
CE Declaration of Conformity
Type Examination Certificate

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EPD-27 DoseG and DoseGX Electronic Personal Dosimeter
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