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Computed Tomography Advanced Portfolio of Computed In 2021, NAEOTOM Alpha® with Quantum Technology was the first photon-counting CT in clinical use. And now, the next generation has arrived: debuts with the proven technology of the original as the pinnacle of the NAEOTOM Alpha class. Explore the evolution.

NAEOTOM Alpha with Quantum Technology, the world's first photon-counting CT, marked the beginning of the photon-counting CT era. Its never-seen before technology is designed to guide therapeutic and clinical decision-making for more patients.

What is photon-counting CT?

At the heart of NAEOTOM Alpha® is a radically new photon-counting detector. The QuantaMax detector directly converts X-rays into an electrical signal, which is then used to create an image. The energy of each X-ray is measured, so spectral information is available for every scan, and the images are contrast-rich with high spatial resolution at the same dose. Combining the high spatial resolution of the QuantaMax photon-counting detector with our Dual Source temporal resolution enables the visualization of fine details for increased diagnostic confidence.

Computed Tomography Advanced Portfolio of Computed Tomography Systems

Introducing groundbreaking CT scanners and services for decades, Siemens Healthineers is known as the innovation leader: Innovating to maximize clinical outcomes, and to contribute to patients’ well-being by minimizing radiation and contrast media dosage

Photon-counting CT Scanner

Photon-counting CT scanners with Quantum Technology are nothing less than the total reinvention of computed tomography. They offer a radical new way to generate clinical results, based on the revolutionary direct signal‐conversion of its QuantaMax detector.

Key technologies

NAEOTOM Alpha with Quantum Technology is the reinvention of computed tomography and offers a radically new way of generating clinical results. It incorporates innovative technologies designed to overcome the limitations of conventional CT scanners.

Precision QuantaMax detectors

QuantaMax, the first photon-counting detector, overcomes the limitations of conventional CT detectors by providing data at high spatial resolution, without electronic noise and with improved contrast-to-noise ratio.

Full Vectron X-ray power

Vectron X-ray tube enables high image quality, even for patients with high BMI. The microfocal spot (0.4 mm x 0.5 mm) allows to utilize the high spatial resolution of the QuantaMax detectors.

Unmatched Dual Source speed

The unique Dual Source technology enables a native temporal resolution of 66 ms and a scan speed of up to 74 cm/sec – mastering even the most challenging imaging tasks.