Apex™ micro-multileaf collimator

The Apex DMLC brings additional versatility to treatments on an Elekta linear accelerator. As an add-on multileaf collimator with the smallest leaf width across the largest field size, Apex facilitates practice expansion into stereotactic treatments while enabling a range of additional clinical applications.

The innovative leaf design of Apex delivers excellent physics characteristics. With the dual focused leaves following the divergence of the beam, a low uniform penumbra is created. This is supported by low transmission through the leaves to ensure low integral dose and reduced dose to organs-at-risk.

The quick attach and release mechanism with seamless automated leaf and gantry calibration offers minimal disruption to the daily workflow, while maintaining a high level of positional accuracy.

  • 2.5mm high resolution beam shaping ideal for small fields
  • Uniform low transmission and small linear penumbra
  • Sharp dose gradients reduce unwanted dose, enabling dose escalation
  • Easy attach and release mechanism
  • Largest treatment aperture of 12 cm x 14 cm with interdigitation

Note: Apex is not available for sale or distribution in all markets. Please contact your local Elekta representative for further information.

Additional Resources

Treatment delivery systems

Treatment delivery systems

With a comprehensive choice of delivery systems, Elekta is the ideal partner for ensuring that each clinic and patient receives the best system and treatment for their needs. Learn more about our solutions below and how they can expand your clinical practice.


Treatment solutions

At the forefront of clinical advancements, Elekta has been instrumental in delivering techniques like IGRT, IMRT, VMAT as well as SBRT and SRT. These techniques have given clinicians the flexibility to deliver conventional therapies to treat a wide range of tumors throughout the body, while also enabling treatment of highly complex cancers that require extreme targeting precision.