Landauer’s IPLUS dosimeter
IPLUS®: a state-of-the-art dosimeter
IPLUS is a passive dosimeter ready to use. It incorporates OSL technology developed by LANDAUER and used by 200 dosimetry laboratories worldwide.
Robust, compact and light, IPLUS has been tested by the Laboratoire National Henri Becquerel (LNHB), an independent laboratory, and has shown the following performances:
- Excellent energy response for Hp(10) photon: from 15 keV to 6 MeV from 0 to ±60°
- Excellent energy response for Hp(0.07) beta: from 0.24 to 0.8 MeV from 0 to ±45°
- Linearity deviation < 5% from 0.05 mSv to 10 Sv for Hp(10) and Hp(0.07)
Technical Specifications
Ergonomy
IPLUS can accommodate for two additional detectors in the same housing:
- NEUTRAK® (neutron dosimeter of CR-39 type)
- Imaging® to determine the exposure conditions in static or dynamic conditions
Technical Performance
Developed by our R&D team in France, the IPLUS personal dosimeter can measure Hp(10) and Hp(0.07) dose equivalents.
IPLUS complies with standard EN 62387:2016.
Its characterization by an independent laboratory (LNHB) even shows metrological performance significantly higher than the standard requirements.
- Linearity deviation < 5% for the whole measuring range
- Energy dependence < 11%
| Result of the IPLUS dosimeter | |||
| Whole body and wrist | Area | ||
| Type of measured radiation | Photons | Beta | Photons |
| Personal dose equivalent | Hp(10) and Hp(0.07) | Hp(0.07) | H*(10) |
| Dose range | 0.05 mSv to 10 Sv | ||
| Linearity response | 0.05 mSv to 10 Sv – Standard deviation < 5 % | ||
| Measurement reproducibility | < 5 % | ||
| Energy response (mean energy) | Hp(10): 15 keV to 6 MeV | 240 keV to 0.8 MeV (Emean) | 24 keV to 1.33 MeV |
| Hp(0,07): 15 keV to 1.33 MeV | |||
| Energy dependency | better than 11 % | ||
| Angular response (horizontal and vertical angles) | Hp(10): ± 60° from 15 keV to 6 MeV | ± 45° from 240 keV to 0.8 MeV (Emean) | ± 60° from 24 keV to 1.33 MeV |
| Hp(0,07): ± 60° from 15 keV to 1.33 MeV | |||
| Angular dependency | Excellent – Average deviation < 6 %* | ||
| Fading | < 1.5 % / month | ||
| Neutrons detection | Insensitive to neutrons | ||
* Mean deviation with respect to real response
Chest Packaging
Dimensions: 35 x 74 x 10 mm
Weight: 17 g

Standard clip for IPLUS
Wrist Packaging
Dimensions: 65 x 70 x 5 mm
Weight: 6,5 g

*Beware the Bracelet must be ordered apart.
Main Features
Types of radiation measured: Photons (X and gamma), beta
Detector : GN, new filter
Technology : Aluminium oxyde doped with carbone, Al2O3:C
Certifications
- COFRAC NF EN ISO/IEC 17025 Certification: 2005, scope n°1-1545, available on www.cofrac.fr
- Approved in Belgium by the FANC (Federal Agency for Nuclear Control)
- Participation in national and international inter-comparisons
- Dosimeter characterization completed by the Laboratoire National Henri Becquerel (LNHB) – CEA
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