Skip to main content
Fluke Biomedical LANDAUER RaySafe


Comprehensive solutions for the X-ray room

RaySafe DXR+


    The RaySafe DXR+, is a direct X-ray ruler for alignment of the light and radiation field. The RaySafe DXR+ is extremely easy to use as it is powered on by simply exposing the meter. Features include auto reset and auto power off. There is no need to adjust the light field to a square phantom before making an exposure. No time is wasted waiting for films to be developed.

    The pocket-sized RaySafe DXR+ operates down to 30 kVp and gives an objective, reproducible and immediate read-out. 

    • Fully automatic
    • Ideal for radiography and mammography
    • 6 - 8 years battery life

    “The DXR is amazing – Before I had multiple steps with shots and film alignment. This is so much faster!” Mike Pool, Field Service Specialist

    Quick Checks

    International regulations recommend that the radiation and light field should be aligned within 2 % of the Source-to-Image Distance (SID) or even ± 5 mm at the chest wall for mammo. The RaySafe DXR+ sensor array has been specially designed to meet the needs of real-time checks of the light and radiation field alignment on radiographic and mammographic X-ray equipment.

    RaySafe DXR+ provides an accurate and instantaneous result where an adjustment is needed. A metric scale inside the RaySafe DXR+ is visible on the X-ray image.

    1. Position the RaySafe DXR+

    Position the "X-ray"-symbol within the light field.
    Align the yellow center line with the light field edge. 

    DXR placement

    2. Expose and read out

    Expose and read any X-ray/light field deviation in the RaySafe DXR+ display. 
    RaySafe DXR+ X-ray ruler placement
    Documents & Downloads


    Note! For site/company certificates, and laboratory accreditations, see information about our quality system.

    Videos & Webinars

    Video Library


    Quality Assurance Testing for Increased Patient and Staff Safety Webinar

    Join us to learn more about quality assurance testing, why it is important and how it can be done for different modalities.


    Why X-ray quality assurance testing is important

    Unnecessary radiation exposure from X-ray equipment can be dangerous for both patients and hospital staff. Proper quality assurance testing ensures good image quality at the lowest possible X-ray doses, and enables preventive maintenance of the X-ray machine.

    Can I use DXR+ for measuring a CT dose profile?

    No. The DXR+ has to be irradiated from the printed X-ray arrow and with a continuous field to give a correct result.

    DXR Incorrect
    Can I use DXR+ for measuring a CT dose profile?
    How do I use the DXR+ on mammography machines?

    The DXR+ works well placed on the examination table. Use as high kV as possible.

    Note: Do not position the DXR+ on top of a magnification table, since the signal is too low there.

    Can I replace the battery in the DXR+ myself?

    No, you have to send it to RaySafe for battery replacement. Fill in a Service Request to get it done.