Nuclear Medicine QC & Calibration

Your measurement chain
starts here.

A dose calibrator without a verified reference source cannot be relied upon. A SPECT/CT system requires periodic sensitivity calibration with the right geometry source. A PET scanner needs normalization sources matched to your specific system. These are not optional steps — they are the foundation of accurate nuclear medicine measurement.

Request a Quote View Products

Available in Germany through Oncosia Scientific — authorised distributor of Radnostix calibration and reference products.

Scroll
Product Portfolio

Calibration & Reference Sources

Sealed calibration and reference sources for the full range of nuclear medicine measurement workflows — from daily dose calibrator QC to SPECT sensitivity calibration, PET scanner acceptance testing, and pre-clinical imaging research.

PET Imaging

PET Calibration Sources

Ge-68/Ga-68 and F-18 compatible sealed sources for PET scanner normalization, acceptance testing, and routine QC. Configurations are available for specific camera systems including GE Discovery and others. Sources are supplied with full traceability documentation and a decay calendar.

View products on Radnostix ↗
SPECT/CT Imaging

SPECT/CT Calibration Sources

Co-57 and Gd-153 line sources, point sources, and flood sources for SPECT/CT sensitivity calibration, uniformity QC, and system-specific acceptance testing. Available in configurations for Siemens Symbia, GE StarGuide, and other major systems.

View products on Radnostix ↗
Nuclear Medicine

Dose Calibrator & Reference Sources

Traceable sealed sources in vial, syringe, and S-Vial geometries for dose calibrator constancy and accuracy testing. Also includes rod sources (Eu-152, Ge-68, Co-57, and others), rulers, and flexible Co-57 markers for anatomical localisation during SPECT imaging.

View products on Radnostix ↗
Pre-Clinical

Pre-Clinical Sources

Sealed and fillable calibration sources for pre-clinical imaging systems and R&D applications, including theranostics research. Designed to support scanner calibration, system characterisation, and experimental measurement chains in research settings.

View products on Radnostix ↗

About Radnostix / RadQual — Radnostix is a US-based manufacturer of sealed calibration and reference sources and the parent company of RadQual, a long-established supplier trusted by nuclear pharmacies and imaging centres worldwide. Oncosia Scientific is the authorised distributor of Radnostix products in Germany. Full product specifications, configurations, and documentation are available directly on the Radnostix website. Visit Radnostix ↗

Source Finder

Find the right source for your system.

Not sure which source or configuration you need? The Radnostix Source Finder lets you search by camera system, modality, and application to identify the correct product — before you contact us.

Open Source Finder ↗
The Complete Measurement Chain

From Source Calibration to Patient Dose.
The Full Chain, From One Partner.

Accurate dosimetry does not begin at the software. It begins with a traceable, well-characterised measurement chain — starting from the dose calibrator that measures the administered activity, through the SPECT/CT acquisition that quantifies the radiopharmaceutical distribution, to the absorbed dose calculation that guides the next treatment cycle.

Every step in that chain depends on the physical calibration infrastructure that precedes it. A dose calibrator verified with a traceable source. A SPECT system with a documented sensitivity factor from a validated phantom study. Scanner QC performed with the right geometry source for your specific camera.

Oncosia Scientific is your partner in Germany that provides both the calibration and reference sources that underpin that chain, and the dosimetry expertise and software to complete it. For departments implementing patient-specific dosimetry — or preparing to — the measurement chain starts here.

Learn about Clinical Routine Dosimetry
Frequently Asked Questions

Common questions about our calibration sources.

Practical and regulatory questions we hear from nuclear medicine departments and medical physicists before they order.

Have a question that isn't covered here? Contact us — we're happy to advise before you order.

Contact Oncosia Scientific directly — we handle everything from product selection through to delivery and import documentation. Use the quote form on this page or reach us by email. You'll deal with one contact throughout.
Lead times depend on the product and isotope. Long-lived sealed sources (Co-57, Ge-68, Eu-152, etc.) typically ship within a few weeks of order. Contact us for current availability and a realistic timeline for your specific requirement.
Yes, and we recommend it. We can set up a replacement schedule based on your source's half-life and your QC programme. For SPECT sensitivity sources and PET normalization sources in particular, advance planning ensures no gap in your QC cycle.
Contact us with your camera manufacturer and model, and what you need to measure or verify. Matching the right source geometry, activity, and configuration to a specific camera system is something we do routinely — we'll confirm the right product before anything is ordered.
Usually yes. We have access to a broad product catalogue, and for less common or legacy systems, custom configurations may also be available. Get in touch and we'll work it out.
Every source ships with a Certificate of Calibration, a Leak Test Certificate, and a Decay Calendar. The calibration certificate documents the activity, reference date, measurement geometry, and the traceability chain back to the primary standard. This is supplied as standard with every order — no separate request is needed.
It means the stated activity at the reference date can be traced through an unbroken measurement chain to a primary national or international standard. This is documented on the calibration certificate and is what makes a source suitable for dose calibrator accuracy testing and scanner sensitivity calibration under quality assurance requirements.
We handle the import and export documentation on our end, as part of our normal operations. Your facility's Strahlenschutzbeauftragter is responsible for ensuring sources are covered under your facility's existing licence — or that the appropriate permit is in place — before delivery. If you're unsure about the requirements, we're happy to talk through what to expect.
It depends on the isotope's half-life and your minimum usable activity threshold. Co-57 (T½ ≈ 272 days) and Ge-68 (T½ ≈ 271 days) sources are typically replaced every one to two years. Eu-152 (T½ ≈ 13.5 years) sources have a significantly longer useful life. Each source ships with a decay calendar to help you plan replacement timing.
Yes, if it's in the S-Vial format. The S-Vial is specifically designed to allow calibration in both the syringe and vial positions using a single source, which simplifies the QC protocol and reduces the number of sources you need to maintain.
Order & Request a Quote

Ready to order? We will get you a quote.

Radnostix calibration and reference sources are stocked and sold by Oncosia Scientific in Germany. Tell us your camera system and application and we will identify the right sources, confirm availability, and send you a quote. All orders include the applicable traceability documentation and are coordinated from our German operations.

Get a Quote

Not sure which source fits your system? We are happy to advise before you commit.

To get a fast, accurate quote — tell us:
  • Your camera system — manufacturer and model
  • Application (dose calibrator QC, SPECT sensitivity, PET normalization, etc.)
  • Any existing sources you are replacing or supplementing
  • Your institution and contact details

Calibration sources sit at the foundation of accurate dosimetry.

If your department is implementing patient-specific dosimetry alongside your QC and calibration infrastructure, Oncosia's clinical dosimetry services build directly on the same measurement chain these sources establish.

Clinical Routine Dosimetry Clinical Trials & Research