Key Visual Siemens Healthineers Quantum Technology showirng the face of a middle-aged women, next to the abstract visualization of a photon-counting detector with its precise pulses

with Quantum Technology

CT redefined.


We are proud to introduce the world’s first photon-counting CT. NAEOTOM Alpha® with Quantum Technology
is nothing less than the total reinvention of computed tomography.

Based on the revolutionary direct signal conversion of its QuantaMax detector, NAEOTOM Alpha offers high-resolution images at minimal dose, spectral information in every scan, and improved contrast at lower noise.

Benefit from a range of clinical options and breakthrough consistency never seen before – for confident clinical decision-making and the potential to scan previously excluded patients.

Experience a defining moment in computed tomography.


Abstract cross-section of the QuantaMax detector: X-ray photons that are converted to an electrical charge by the crystal semi-conductor.

With photon-counting CT, we have developed a radically new technology for clinical routine. At its core is a new kind of detector that is substantially different from a standard energy-integrating detector.

These photon-counting detectors have the potential to overcome the limitations of current CT detectors, by providing CT data at high spatial resolution, without electronic noise, and with inherent spectral information.



NAEOTOM Alpha offers an easy and streamlined way to get quantitative information in addition to morphology. By matching the appropriate protocols to patients and by combining all necessary acquisitions into a single scan, NAEOTOM Alpha enables smart navigation through the diagnostic pathway.

Technical Details

    X-ray tubes

    2 x Vectron X-ray tubes


    2 x QuantaMax photon-counting CT detectors

    Number of acquired slices

    2 x 144 slices


    Up to 1300 mA

    Temporal resolution

    Down to 66 ms


    90, 100, 120, 140 kV
    Sn100, Sn140 kV


    144 x 0.4 mm
    120 x 0.2 mm (UHR)

    Spatial resolution

    0.11 mm (in-plane) in UHR mode


    2 x 120 kW

    Table load

    Up to 307 kg


    Up to 737 mm/s (with Turbo Flash)

    Are you interested in buying a new CT scanner?

    Please contact us for more details and about the price of NAEOTOM Alpha with Quantum Technology