Usefulness & necessity

For a long time, it was not very relevant for patients and nuclear medicine specialists to know where the medical isotopes came from. After all, they were always available. However, unexpected production limitations changed this in 2008.

The majority of all medical isotopes that healthcare professionals use worldwide is produced in six reactors. Within 15 years 75% of the production capacity needs to be replaced, because five of the six reactors, including the HFR in Petten, are over 45 years old. The older a nuclear reactor is, the greater the risk of production suddenly coming to a standstill and the bigger the risk that patients will not get a diagnosis or treatment. That is why the PALLAS-reactor is necessary – to secure the worldwide supply of medical isotopes.


Worldwide, 48 million studies and treatments take place each year with the aid of medical isotopes.

A crucial role for science

An important part is the research of new medical isotopes for treating patients.

Reactors are indispensable

For the time being, the alternatives are not yet suitable for producing all types of medical isotopes on a large scale.

Importance for the Netherlands & Europe

In 2009 the government drew up a Nuclear Roadmap in which it recognizes that a new reactor for medical isotopes is indispensable.

Importance for Petten

Without HFR and without PALLAS, a large part of the activity will disappear from the dunes of Petten.