How Precision Seals Enable Nuclear Medicine (Part 1)

By Dimitri Van Den Broeck & Nathan Handschke (Apr 2025)

Nuclear technology is emerging as a reliable source that goes beyond heating our homes and schools – from saving power to saving our lives in the form of nuclear medicine (nucleology), a rapidly advancing field that relies on the precise handling of radioactive materials to diagnose and treat various medical conditions. In modern healthcare, radiopharmaceuticals play a critical role in a wide range of applications: imaging organs and tissues as well as targeting and destroying cancer cells. However, the production, transport, and disposal of these radioactive substances present significant challenges. This is where precision sealing solutions make a significant contribution by ensuring the safety, integrity, and effectiveness of nuclear medicine practices.

Specialized seals such as those engineered from Omniseal Solutions are designed to withstand extreme conditions, providing reliable containment and protection throughout the entire lifecycle of radiopharmaceuticals. This blog will provide insights as to how precision sealing solutions are enabling nuclear medicine throughout its various complex processes.

1. Critical Containment Seals In Radiopharmaceutical Production & Transport

2. Indispensable Sealing Solutions In Particle Accelerators

3. High Performance Seals In Waste Management

How are radiopharmaceuticals produced? Nuclear reactors, particle accelerators or cyclotron systems generate radioactive isotopes, which are subsequently processed into radiopharmaceuticals. This processing environment requires stringent containment to avoid contamination, which can lead to significant risks. To effectively prevent this breach, engineered sealing solutions are used to prevent radioactive material from escaping due to their resilience and radiation resistance. Moreover, when transporting isotopes to medical facilities, these sealing solutions secure transport containers, designed to endure the demands of transit while preserving material integrity.

Many radioisotopes used in nuclear medicine are produced in nuclear reactors, where high pressures and temperatures are the norm, and any failure in containment could lead to catastrophic results. Metal seals are used extensively to maintain pressure boundaries within reactor vessels, seal coolant systems, and ensure the overall containment of radioactive materials.

Hot cells and other shielded facilities are areas where radioactive materials are also handled and processed. These facilities are designed to protect workers from radiation exposure while allowing for the precise handling of radioactive substances. Reliable seals are used in various components of these facilities, shielding windows and transfer ports in order to maintain a secure and controlled environment. Furthermore, these seals play a role in ensuring that the radiopharmaceuticals produced within these facilities meet the stringent safety standards required for medical use.

In the world of medical imaging and therapy, the production of radioisotopes is a cornerstone. Particle accelerators, particularly cyclotrons, are at the heart of this process. Let us delve into how these high-tech machines operate and how sealing solutions ensure their success.

How do particle accelerators work? Particle accelerators are considered marvels of modern technology that take ordinary particles and accelerate them to extraordinary speeds and create radioisotopes. Here is a closer look at the process:

1. Ionization: The journey begins with ionizing hydrogen atoms to produce protons.

2. Acceleration: These protons are then accelerated to high speeds using an electric field within the cyclotron.

3. Deflection: A magnetic field causes the protons to follow a spiral path, gaining energy as they move outward.

4. Target Bombardment: Finally, the high-energy protons collide with a target material, causing nuclear reactions that produce the desired radioisotopes.

This method is particularly effective for producing isotopes like Fluorine-18, which is widely used in PET scans, and other short-lived positron emitters. While particle accelerators are the stars of the show, sealing solutions are the unsung heroes that make the production of radioisotopes possible. These solutions ensure the integrity and safety of the target materials during and after irradiation, offering the following technology advantages:

1. Protection: Sealing solutions protect the target material from contamination and environmental factors that could compromise the quality of the produced radioisotopes.

2. Containment: They help contain the radioactive material, preventing leaks and ensuring safe handling and transportation.

3. Stability: By providing mechanical stability, sealing solutions ensure that the target remains intact during the high-energy bombardment process.

In addition to these overall conditional benefits, sealing solutions offer specific benefits relating to the targets used in particle accelerators:

• Maintaining Purity: They ensure that the target material remains pure and uncontaminated, which is crucial for producing high-purity radioisotopes.

• Preventing Degradation: Sealing solutions protect the target from degradation due to exposure to high-energy particles and radiation.

• Facilitating Handling: They make it easier to handle and transport the irradiated targets safely to processing facilities.

As the nuclear medicine field continues to innovate, the role of our containment seals becomes increasingly vital, with our business working together with industry partners to develop the next generation of sealing technology in order to support the future of nuclear technology. Whether in the production, transport or disposal of radioactive materials for nuclear medicine, our metal and polymer seals have proven to provide safety and integrity in every stage of the process – going beyond in diagnostic and therapeutic practices for improved patient outcomes and care.

Contact our experts today to solve your nuclear medicine challenges. Stay tuned for Part 2 of this nuclear medicine series.