Welcome!
MINIBALL is a gamma-ray spectrometer located on the first beam line
of the HIE-ISOLDE facility at CERN.
News
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Congratulations, Dr Max Droste!
Maximilan Droste defended his PhD thesis at U. Cologne On 18th May 2026, Maximilian Droste, PhD candidate at the University of Cologne (Germany) under the supervision of Prof. Peter Reiter, successfully defended his thesis titled “Nuclear Structure and Collectivity of Neutron-Rich Tin Isotopes around 132Sn”. In his thesis, he presented an investigation of collective properties of…
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Welcome back, Gulla!
PhD candidate Gulla Torvund returns to CERN for an extended research stay After a positive experience during her research stay at ISOLDE in the fall 2025, Gulla Torvund (U. Oslo) returns to CERN for a 6-month research stay. During this time, she will work on the data analysis of the experiment IS774, and support ongoing…
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Miniball goes into LS3
Detectors dismounted and sent for refurbishment After a successful experimental campaign in 2025, the Miniball clusters have been dismounted by Josh Curry (U. Liverpool), Oscar Fjeld, Jordan Reilly and Carlotta Porzio (CERN) in December 2025. Herbert Hess (GSI) and Timo Biesenbach (U. Cologne) transported them to Cologne in January 2026 for refurbishment during LS3.
About
The Miniball germanium detector array has been in operation at CERN’s ISOLDE facility since 2001. It enables a wide range of nuclear-structure studies using high-quality radioactive ion beams. Read more →