pom202407

The formation of long-lived spallation products in lead as a result of exposure to cosmic radiation is the subject of a study initiated by radiochemists Bernd Eichler (PSI) and Heinz Gäggeler (University of Bern & PSI) at the end of the 1990s. For this purpose, eight lead plates were placed at the research station on the Jungfraujoch as well as in the lowlands. The eight plates at the research station have now, almost three decades later, been recovered by the next generation of radiochemists to carry out the first radioanalytical investigations. From left: Robert Eichler (University of Bern & PSI), Georg Tiebel (ETH Zurich & PSI) and Patrick Steinegger (ETH Zurich & PSI) at the collection on the Jungfraujoch on June 19, 2024. Photos: PSI

The formation of long-lived spallation products in lead as a result of exposure to cosmic radiation is the subject of a study initiated by radiochemists Bernd Eichler (PSI) and Heinz Gäggeler (University of Bern & PSI) at the end of the 1990s. For this purpose, eight lead plates were placed at the research station on the Jungfraujoch as well as in the lowlands. The eight plates at the research station have now, almost three decades later, been recovered by the next generation of radiochemists to carry out the first radioanalytical investigations. From left: Robert Eichler (University of Bern & PSI), Georg Tiebel (ETH Zurich & PSI) and Patrick Steinegger (ETH Zurich & PSI) at the collection on the Jungfraujoch on June 19, 2024. Photos: PSI