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Report No.

Degassing of kicker magnet by in-situ bake-out method

Kamiya, Junichiro   ; Ogiwara, Norio; Hikichi, Yusuke; Kinsho, Michikazu  ; Miki, Nobuharu*; Yanagibashi, Toru*

New method of in-situ degassing of the kicker magnet in the beam line has been developed. The heater and heat shielding panels are installed in the vacuum chamber in this method. The heater was designed considering the maintainability. The graphite was selected as the heater and the high melting point metals were used as the reflectors just near the heater. The thermal analysis and the temperature measurement with the designed heater was performed. The ideal temperature distribution for the kicker degassing was obtained. The outgassing of the graphite during rising the temperature was measured. The result showed that the outgassing was extremely suppressed by the first heating. This means the outgassing of the graphite heater was negligible as long as it is used in the beam line without exposure to the air.



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