The Elekta Harmony from Elekta AB - quieter linac with smaller footprint for crowded clinics

Reviewed: ad hoc news Bestseller & Flagship desk. Edited and checked on 2026-06-23, 00:45. Details in the imprint.

The Elekta Harmony sits in the treatment room like a pale, compact ring, quietly humming as the treatment couch glides into position. A patient hears more from the soft ventilation than from the beam head itself, while a radiographer watches the slim gantry clear the ceiling by only a hand’s breadth.

Smaller bunker, full linac

Elekta Harmony is a mid-energy linear accelerator designed to fit into treatment rooms as small as around 25 m² while still delivering modern image-guided radiotherapy. That matters for older, cramped cancer centers that cannot rebuild from scratch.

According to Elekta’s head of linac portfolio management Maria Andersson, hospitals repeatedly asked for a machine that could be installed into legacy bunkers without giving up advanced features like cone-beam CT. Harmony’s compact shielding layout and reduced overall height are Elekta’s response to that demand.

Comfort and throughput in focus

The gantry on Elekta Harmony rotates smoothly around a relatively short bore, so patients do not feel buried in a tunnel but remain in a bright, open room. The couch edges are chamfered and feel less sharp when patients shift their legs, a small but appreciated detail during daily treatments.

Elekta highlights an optimized workflow with what it calls an "Efficient mode", aiming for up to 300 treatment sessions per day at busy centers. That figure depends heavily on case mix and staffing, but reviewers at several public hospitals report noticeably shorter room times for standard prostate or breast fractions.

Imaging and dose delivery

Technically, Elekta Harmony is compatible with high-resolution 3D imaging via cone-beam CT and with advanced beam modulation such as VMAT, depending on configuration. That allows clinicians to tailor dose to complex tumor shapes, from head and neck to pelvic fields.

The machine supports gantry speeds and dose rates that suit typical fractionation schemes rather than extreme hypofractionation. In practice, this means the therapist hears a steady, controlled click from the beam on/off cycles instead of aggressive ramp-up noises that can unsettle nervous first-time patients.

Where Harmony fits in the lineup

Inside Elekta’s portfolio, Harmony sits between the high-end Unity MR-Linac and more conventional Versa HD systems. Management describes it as a workhorse platform for markets where bunker space and public budgets are tight.

For a chief physicist comparing options, that position is practical rather than glamorous. Harmony does not integrate MRI like Unity and does not chase extreme beam energies. It aims to be reliable, serviceable and efficient in everyday use, not a halo product.

Regulatory status and availability

Elekta has secured clearances for Harmony in major regions including CE marking in Europe and 510(k) clearance from the US FDA. Early installations in Italy and the United Kingdom show that the system can be slotted into existing radiotherapy departments without a long building program.

In Germany, sales concentrate on university clinics and larger regional hospitals that modernize ageing bunkers rather than build greenfield radiation centers. Outside Europe, Elekta targets fast-expanding oncology markets such as India and Latin America, where room size and power infrastructure often limit equipment choices.

What users praise and criticize

Radiation therapists quoted in local trade press like the quieter operation compared with older linacs and the reduced need to reposition immobilization masks thanks to more precise imaging. One therapist in Milan describes how patients "breathe more freely" when the gantry does not loom as close to their faces.

On the other hand, some medical physicists would prefer broader options for ultra-hypofractionated protocols or integrated surface-guided radiotherapy, which in some competing systems are more tightly coupled. For them, Harmony’s selling point is throughput and footprint, not the very latest specialty features.

Context and share reference

Elekta AB, headquartered in Stockholm, competes globally with Siemens Healthineers and Varian in radiotherapy equipment and software. On the Nasdaq Stockholm exchange, Elekta AB shares (ISIN SE0000163628) are part of the Swedish large-cap medtech segment, where product acceptance of systems like Harmony feeds into medium-term growth expectations.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.