CHUPS – Circulating Hydrogen Ultrahigh Purification System

The project:

The system of ultra-high purification of hydrogen is designed for maintenance of predefined purity of hydrogen in a Time Projection Chamber (TPC) for mu-capture experiment at PSI. During several months long operating periods the system maintained the hydrogen purity in the detector on the level of 20 ppb for moisture, which is the main contaminant, and of better than 7 ppb and 5 ppb for nitrogen and oxygen, respectively.


1. Main parameters.
2. Structure.
3. Control and Data Acquisition.
4. Principles of operation.
5. Documents and drawings.

Our work:

Circulating Hydrogen Ultrahigh Purification System – CHUPS was designed and produced in our Laboratory.