The International Commission on Radiological Protection (ICRP) has recommended to lower the dose to the lens of the eye and the Nuclear Regulatory Commission (NRC) has proposed modifications to 10CFR20.
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A Dosimeter Designed For Lens of Eye Dose
Ergonomic, light and small, the LANDAUER VISION dosimeter does not affect the user’s activity and view. It is made from a plastic resistant to twisting. The dosimeter is flexible and can be placed close to the eye, providing a more accurate measurement of the lens of eye dose.
Laser-etched Identification
The cap with titanium oxide particles is laser etched for permanent marking and identification. This also allows for easy cleaning.
| Technical Performance | ||
|---|---|---|
| Types of radiation measured | Results of the LANDAUER VISION dosimeter | |
| Photons (X-rays or Gamma Rays) | Beta Particles | |
| Personal dose equivalent | Hp (3) | Hp (3) |
| Dose range | from 10 mrem (0.10 mSv) to 1000 rem (10 Sv) |
from 10 mrem (0.10 mSv) to 1000 rem (10 Sv) |
| Minimum reporting value | 10 mrem (0.10 mSv) | 10 mrem (0.10 mSv) |
| Linearity response | from 10 mrem (0.10 mSv) to 1000 rem (10 Sv) Standard deviation < 9 % |
from 10 mrem (0.10 mSv) to 1000 rem (10 Sv) Standard deviation < 9% |
| Energy response (average energy) |
from 24 keV to 1.25 MeV | from 250 keV (Eave) to 2.3 MeV (Emax) |
| Angular response | ± 60° from 24 keV to 1.25 MeV | ± 60° from 250 keV (Eave) to 2.3 MeV (Emax) |
| Environmental Resistance Characteristics | |
|---|---|
| Operating and storage temperature | No effect on detector sensitivity up to 104°F (40°C) |
| Humidity | No effect on detector up to 90% humidity |
| Exposure to light | No effect on detector |
| General Characteristics | |
|---|---|
| Radiation measured | Photons (Beta, X-rays and Gamma Rays) |
| Detector | Single element, one TLD |
| Cleaning | |
|---|---|
| Sterilize the LANDAUER VISION dosimeter by cold wiping with one of the following disinfectants: | |
| 1) Cidex® | 2) Betadine® |
We do not recommend heat sterilization with temperatures that exceed 104°F (40 °C)
Measurement Method
The LANDAUER VISION dosimeter is composed of a polyamide holder with a cap, which contains a lithium fluoride thermoluminescent dosimeter (TLD) chip. This radiation dose detector chip is placed inside a cavity on the cap which is sealed by ultrasound welding. The information is laser marked on the cap making it nonerasable.
When the chip is heated, visible light is emitted in proportion to the exposure of ionizing radiation.
Compliance With Standards
IEC 62387-1:2012 - Passive integrating dosimetry systems for personal and environmental monitoring of photons and beta radiation - Radiation protection instrumentation.
Laboratory Qualifications
Suitable for Personnel Involved In:
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