Individual Gamma Radiation Dosimeter

ID-25

The Individual Gamma Radiation Dosimeter ID-25 is designed for measurement of the personal dose equivalent Hp(10) of gamma radiation, assessment of the personal dose equivalent rate Hp(10) of gamma radiation, and storage of information in non-volatile memory for maintaining a personnel dose exposure database as part of the IDK-25 Individual Dosimetric Monitoring System.

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

The ID-25 dosimeter is resistant to the following operating conditions:
- operating temperature range – from −20 … +50 °C
- relative humidity – 95% at +25 °C
- atmospheric pressure – from 60 … 106.7 kPa
Ingress protection rating of the dosimeter enclosure – IP67

Measurement range of the personal dose equivalent of gamma radiation

10 ... 10⁷ μSv

Programming range of threshold levels of the personal dose equivalent (PDE) of gamma radiation, exceeding which is accompanied by alarm signaling

10 ... 10⁷ μSv

Range of the personal dose equivalent rate (PDER) of gamma radiation in which the ID-25 dosimeter measures the personal dose equivalent of photon ionizing radiation

10 ... 2·10⁶ μSv/h

Threshold levels of the PDER of gamma radiation, exceeding which is accompanied by alarm signaling

1·10³ μSv/h
10·10³ μSv/h
100·10³ μSv/h
1·10⁶ μSv/h

Main relative permissible error limit of PDE measurement during calibration at ¹³⁷Cs calibration with a confidence probability of 0.95

15%

Energy range of detected gamma radiation

0.05 ... 3 MeV

Energy dependence when measuring the PDE of gamma radiation within the energy range from 0.05 MeV to 1.25 MeV relative to ¹³⁷Cs, not worse than

-25 ... +40 %

Additional relative permissible error limit during measurement of gamma radiation PDE caused by deviation of ambient temperature from +20 °C within the temperature range from −20 °C to +50 °C

5% for every 10 °C deviation from +20 °C

Nominal supply voltage from Ni-MH rechargeable battery

1.2 V

Continuous operating time of the dosimeter under normal climatic conditions when powered from a fully charged rechargeable battery with capacity not less than 950 mAh and at a gamma background not exceeding 0.25 μSv/h, not less than

1 500 h

Average service life (including repairs), not less than

10 years

Mean time between failures, not less than

6 000 h

Average storage life of the dosimeter, not less than

10 years

Overall dimensions with clip, not more than

85 × 45 × 30 mm

Weight of the dosimeter, not more than

0.1 kg

Individual Gamma Radiation Dosimeter

ID-25

Features

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