TOPAZ®: OSL lens of eye dosimeter
The TOPAZ is a passive lens of eye dosimeter compatible with OSLR reader.
It measures X-rays, gamma rays and beta radiation.
Specially designed for dosimetry labs, its functional design minimizes your set-up time.
- Easy assembly
- Clip-on parts
- Reusable
- Holder and MP7 OSL Sensor tracability with 2D barcode
Discover TOPAZ service cycle
Last ned datablad
Characteristics
The TOPAZ dosimeter does not affect participant’s activity and field of vision. Offered in two sizes, it is adapted to all PPE (Personal Protective Equipment): lead glasses, visors, mob caps… Selfgripping pads ensure a maximum fit.
You can configure it for measurements behind or in front of the PPE.
The cap can be oriented from vertical to horizontal position to fit your morphology and your PPE.
Technical specifications
| Photons energy range | ± 60° incidence angle from 16 keV to 1.33 MeV | |
| Dose range | 100 μSv – 10 Sv | |
| Types of radiation measured | Photons (X- and gamma rays) and beta | |
| Detector | Single MP7 OSL sensor | |
| Sensor material | Aluminium oxide doped with carbone, Al2O3:C | |
| Holder material | Polyamide | |
Dimensions
Weight:
- M – 720 mg
- L – 770 mg
Size:
- M – 4.6 mm
- L – 7.6 mm
Measurement method
MP7 OSL sensor
This ring uses a novel tissue equivalent MP7 OSL sensor. The OSL material is made from Aluminium oxide doped with Carbon (Al2O3:C).
The dose is measured using the OSLR readers.
The read out process uses a LED (Light Emitting Diode) to stimulate the detectors. The light emitted by the OSL material is measured by a photomultiplier tube (PMT) using a high sensitivity photon counting system.
The amount of light released during optical stimulation is directly proportional to the radiation dose.
LANDAUER offers a complete service
- advice and tailored solutions for your needs
- delivery and on-site commissioning
- training on operation and first-level maintenance
- on-site and factory maintenance
- phone and email support