Patent ID: 7683556

Claim:
An acceleration tube conditioning apparatus for performing a conditioning process on an acceleration tube when a high frequency power signal to be supplied to an acceleration tube is generated by a high frequency power supply, wherein said high frequency power signal is supplied to said acceleration tube as a traveling wave power signal and said traveling wave power signal is reflected in said acceleration tube as a reflection wave power signal, said acceleration tube conditioning apparatus comprising: a power value collecting section configured to collect a traveling wave power value and a reflection wave power value from a sensor which monitors said traveling wave power signal and said reflection wave power signal; a high frequency calculating section configured to calculate a resonance frequency of said acceleration tube based on said traveling wave power value and said reflection wave power value; a high frequency adjusting section configured to determine a high frequency value based on one of said traveling wave power value and said reflection wave power value as a selection power value; and a high frequency power supply control unit configured to control said high frequency power supply based on said high frequency value, wherein said high frequency value indicates a constant value when said selection power value is smaller than a predetermined value, and indicates the calculated resonance frequency when said selection power value is larger than the predetermined value.