DMax

Dmax, or dmax, is a label used in several distinct domains. In media, it refers to a television channel brand; in medicine, it describes a dosimetric depth in radiotherapy. The two uses are unrelated aside from the shared acronym, and the capitalization often signals the context.

As a TV channel, DMAX is a free‑to‑air brand operated by a Discovery Communications/Warner Bros. Discovery group in multiple European markets. It originated in Europe in the mid-2000s and has since grown to offer region‑specific schedules emphasizing automotive programming, adventure, and documentary series. Availability is typically through digital terrestrial, satellite, and cable platforms, with programming customized per market. The channel format is designed to appeal to viewers interested in cars, motorsports, DIY projects, and extreme action, though offerings vary by country.

In radiology and medical physics, dmax (often written with lowercase d and sometimes capitalized as Dmax) denotes the depth at which the dose from a photon or electron beam reaches its maximum within tissue. Dmax is a critical parameter for treatment planning and dosimetry, influenced by beam energy and tissue characteristics. Knowing the depth of maximum dose helps clinicians optimize dose delivery, calibrate equipment, and design shielding, while protecting surrounding healthy tissue. The term is widely used in radiation therapy planning and quality assurance to ensure accurate, safe treatment.