Dec 13 – 16, 2021
Europe/Zurich timezone
JFIC'21 is the first event in this new series

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The Study of Decreasing Water Cooling Temperature of the RF Cavity to Prolong Operation of Water Cooling Station and Energy Saving

Dec 14, 2021, 3:00 PM
Auditorium A

Auditorium A

Contributed Oral Presentation MC6.1 First Track in MC6 Track Group Beam Instrumentation, Controls, Feedback and Operational Aspects TUOCA MC6 Contributed Oral Presentations


Nawin Juntong (Synchrotron Light Research Institute)


The stable cooling system is an important system for a stable operation of the RF cavity. The new RF cavity system was installed in the Siam Photon Source (SPS) in 2016. The new cavity is kept running with
42-degree Celsius water cooling system. There were several problems with the cooling system during one-year operation. The main problem is the heat accumulate in the system. The activities to decrease this
accumulated heat in the cooling unit is in progress. The study to decrease the cooling temperature is also started. Decreasing water temperature will prolong operation of water cooling unit and help a bit of
reducing electricity consumption. The activities are concerned the changing position of tuner to get the operation frequency with the temperature changing. The cavity is a capacitive loaded type and is tuned by
changing the capacitor gap. This deforms shape of the cavity, which affects the higher order mode (HOM) frequencies. The study of these HOMs with the temperature and the effect to the stored beam will be

Primary author

Nawin Juntong (Synchrotron Light Research Institute)


David Olsson (MAX IV Laboratory) Erik Mansten (MAX IV Laboratory) Mikhail Martyanov (Max-Planck-Institut für Physik) Sara Thorin (MAX IV Laboratory)

Presentation materials