PRODUCT / TECHNOLOGY
Defined in 3D.
Made for measurement.
Explore long-lived Ge-68 reference phantoms, from established imaging geometries to application-specific test bodies.
Explore the geometries
Ge-68 development focus
SPATIAL RESOLUTION
Derenzo phantom
Rod arrays offer a visual way to assess spatial resolution. SwissNuCRO’s manufacturing approach supports radioactive foreground structures with a differently active background.
View PET images of the Derenzo phantom ↗- Measurement focus
- Resolution and background effects
- Application
- Preclinical PET, research and scanner development
- Geometry
- Digitally defined rod arrays
MEASURED IMAGES / PRECLINICAL PET
PET images of Derenzo
and NEMA phantoms.

Top row: Derenzo phantom without background activity. Foreground activity concentration: 69.6 kBq/mL.
Middle row: Derenzo phantom with background activity. Foreground: 69.6 kBq/mL; background: 7.2 kBq/mL, giving a ratio of approximately 10:1.
Bottom row: Photograph and PET images of a preclinical NEMA phantom, with background activity at one tenth of the foreground activity. Sphere diameters: 4, 3, 2, 1.6 and 1.2 mm.
All PET images were acquired on a preclinical Super Argus PET/CT scanner (Sedecal, Algete, Spain). Colours show detected activity. The figure is reproduced unchanged.
PRODUCT EXAMPLES / PRINTED SHAPES
More shapes.
More possibilities.
Explore printed geometries, from rod arrays and ring patterns to symbols, physiology and separate components.

Derenzo phantom
A Derenzo phantom with rod arrays of different diameters for assessing spatial resolution.

Radial geometry
A star-like radial pattern with repeated internal structures.

Sphere and background geometry
A spherical region within a cylindrical body.

Imaging cost savings :-)

Physiology
Mouse skeleton

Spherical components
Separate spherical and segmented components in a range of visible sizes.

Dose-calibrator sources
Calibration sources for dose calibrators, shown in three cylindrical sizes.
Radioactive wear pads
Purpose-shaped markers for drill-bit wear monitoring. Concept only — not yet developed.
Your imagination is the limit!
THE MANUFACTURING APPROACH
From digital geometry
to a physical reference.
Radionuclides are incorporated directly into a 3D-printable polymer matrix.
The geometry and activity distribution are defined digitally. The resulting solid-state source can take forms that are difficult to achieve with conventional liquid-filled phantoms and their inactive separating walls.
Our initial focus is Ge-68 reference phantoms for PET/CT, alongside related test bodies for instruments such as dose calibrators and gamma counters.
Define
Discuss the instrument, geometry and measurement task.
Manufacture
Translate a digital design into a radioactive solid-state body.
Evaluate
Characterise the source for its intended measurement workflow.
CUSTOM GEOMETRIES
Your measurement task.
Your reference geometry.
From imaging phantoms to related measurement-chain test bodies, the design starts with your application. Discuss shape, activity requirements, instrument compatibility and the documentation you need.
Product scope, technical specifications, delivery conditions and availability are agreed for each project. Additional isotopes and SPECT applications remain development opportunities.
Discuss a custom applicationTechnical documentation
Ask us about activity and reference date, geometry, measurement uncertainty, source-tightness testing, handling, service life and end-of-life arrangements for your application.
LET’S TALK ABOUT YOUR APPLICATION
