Helium purity control by thin film gas sensors at the NA-48 experiment at CERN

The authors have implemented a system for monitoring the purity of helium for the NA-48 experiment on high-energy physics at CERN. This measurement is important for correct execution of the experiment. A set of SnO2 sensors was used to the purpose for on-line information on helium purity within the required accuracy

Operating experience with chemical sensors at the CERN NA48 experiment

Oxygen adsorption on thin film sensors provides an effective tool for real-time control of the air content in the helium vessel in NA48 experiment at CERN