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VISION®: Discrete and versatile multi-support lens dosimeter

The International Commission on Radiological Protection (ICRP) recommends lowering lens of eye annual limit down to 20 mSv. This value has been included in the European directive 2013/59. In 2018, the directive is implemented in regulatory texts in most European countries.

The use of a lens dosimeter is specially recommended for potential dosing professional activities such as:

  • interventional radiology and nuclear medicine
  • imaging in veterinary practice
  • handling within glove boxes
  • maintenance operations in the nuclear industry

Personal dosimeter

Workstation study

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VISION®: Discrete and versatile multi-support lens dosimeter
Ergonomy and hygiene Technical performance Dimensions General characteristics Certifications Accessories Related products

Ergonomy and hygiene

LANDAUER® has developed a lens dosimeter to assist you:

  • Ergonomic, compact and flexible: it adapts to all protection supports such as lead glasses, visors, caps, etc. It can be used behind lead glasses as close as possible to the eye without obstructing the view. VISION should be worn to the left or to the right of the eye, or in the middle of the glass.
  • Simple, fast and durable identification by laser engraving.
  • Easy to disinfect.

Firm fixation: two sizes are available to adapt to your personal protective equipment. The lens shifts from a horizontal position to a vertical position to adapt to your personal protective equipment and to your morphology.

Anti-skid pads

Adapted to several supports

Compact

Download the disinfection instructions

Technical performance

VISION is the only lens dosimeter on the market certified by the French Accreditation Committee (COFRAC). It can measure Hp(3) photon dose to the lens from 0.1 mSv. Moreover, its high measuring dynamic and extreme accuracy allow dose measurement up to 10 Sv with a standard deviation greater than 9%.

Its performance has been assessed and validated by the Laboratoire National Henri Becquerel (LNHB), an independent and accredited laboratory.

Type of radiation measured Results of VISION dosimeter
Photons Beta or electrons
Dose equivalent Hp(3)
Dose range 0.1 mSv to 10 Sv
Minimum reporting value 0.1 mSv
Linearity response 0.1 mSv à 10 Sv
Standard deviation < à 9 %
Angular response ± 60° from 24 keV to 6 MeV ± 45° ; 0.8 MeV (Emean)

 

Dimensions

Weight
M: 720 mg
L: 770 mg

Mean deviations
M: 4.6 mm
L: 7.6 mm

Two sizes available

General characteristics

Manufacturer: Lens dosimeter designed and manufactured in France by LANDAUER

Detector: TLD badge (manufactured in accordance with LANDAUER’s specifications)

Badge material: LiF:Mg,Ti (magnesium and titanium doped lithium fluoride)

Learn more about TLD technology

Certifications

  • COFRAC NF EN ISO/IEC 17025 Certification: 2005, scope n°1-1545, available on www.cofrac.fr
  • Participation in national and international inter-comparisons
  • Dosimeter characterization completed by the Laboratoire National Henri Becquerel (LNHB) – CEA

Our related products

Supporting you every day

LANDAUER stands by your side beyond simply supplying dosimeters. We help you manage your dosimetry subscription efficiently and seamlessly.

LANDAUER provides you with:

  • the web platform to manage your dosimetry monitoring « LANDAUER Direct », available 24/7
  • our customer advisor team
  • our technical support for complex requests and high-dose alert management

Discover our full service! Contact us