RuPAC 2006 - List of Authors

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Miginskaya, E.G.

Paper	Title	Page
MODP23	Temperature Stabilization of RF-cavities of VEPP-4M Electron-Positron Facility E.G.Miginskaya, I.I.Morozov, V.M.Tsukanov, A.A.Volkov Budker Institute of Nuclear Physics, Novosibirsk, Russia Temperature variation of RF-cavities leads to a change of their geometrical sizes that provides undesirable cavity modes and to excitation of phase oscillations. It leads to decrease in luminosity and a beam life time. Flowing water heaters with stabilization of temperature have been established for elimination of this disadvantage. Temperature probes LM335 were used with a sensitivity of 10 мВ per degree. The power part is made on the controllable switches CPV240. The analysis of temperature of input and output temperatures of water is carried out by microcontroller ADAM connected to a computer by means of interface RS-485. The temperature variation have been reduced from 5 to 0.2 degrees centigrade. That has led to decrease in probability of occurrence of parasitical phase oscillations more than in 100 times.	253

Paper

Title

Page

Temperature Stabilization of RF-cavities of VEPP-4M Electron-Positron Facility

E.G.Miginskaya, I.I.Morozov, V.M.Tsukanov, A.A.Volkov
Budker Institute of Nuclear Physics, Novosibirsk, Russia

Temperature variation of RF-cavities leads to a change of their geometrical sizes that provides undesirable cavity modes and to excitation of phase oscillations. It leads to decrease in luminosity and a beam life time. Flowing water heaters with stabilization of temperature have been established for elimination of this disadvantage. Temperature probes LM335 were used with a sensitivity of 10 мВ per degree. The power part is made on the controllable switches CPV240. The analysis of temperature of input and output temperatures of water is carried out by microcontroller ADAM connected to a computer by means of interface RS-485. The temperature variation have been reduced from 5 to 0.2 degrees centigrade. That has led to decrease in probability of occurrence of parasitical phase oscillations more than in 100 times.

253