Paper | Title | Page |
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TUP029 | Continued Monitoring of the Conditioning of the Fermilab Linac 805 MHz Cavities | 464 |
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We have been collecting data on the conditioning of the high-gradient accelerating cavities in the Fermilab 400 MeV H-Minus Linac for over 16 years [1]. This linac was upgraded in 1989 from a 201 MHz Alverez structure to include 805 MHz side-coupled cavities. Automated measurements of the sparking rate have been recorded since 1994 and are reported here. The sparking rate has declined since the beginning, but there are indications that this rate may have leveled off now. The X-rays emitted by the cavities are continuing to decrease. [1] Kroc, et al., Proceedings of LINAC96, pp 338-340 |