MHI#10号機の2 回目の pre-tuning

Process log Status of pre-tuning

Period : 2010/5/31 ～ 6/2Process : Field flatness measurement, pre-tuning, measurement of total length and etc.Workers : T. Shishido, Kirk (KEK),

M. Asano (Nihon Advanced Technology)

Kirk1

STF Cavity Group Meeting @2010/6/7

Process log

STF Cavity Group Meeting @2010/6/7

2

5/31 10:00~ Field flatness measurement after 1st V.T.1297.0097MHz/95.5%

6/1 9:30 Detachment of jigs / Setting to tuning machine10:40 Pre-tuning starts11:20 Cell #1 was expanded (+1.5mm -3.0mm +1.6mm 0.0mm)

間違えて伸ばし過ぎたので、一度縮めてやり直す。14:30 Cell #6 was expanded (+2.5mm 0.0mm)

1297.0574MHz/97.9%16:00 Measurement of dumbbell and total length

6/2 9:30 Adjustment of total length of cavity / Attachment of jigs10:35 Field flatness with jigs

1297.1066MHz/97.4% [O.K.]

Initial Status of pre-tuning

STF Cavity Group Meeting @2010/6/7 3

これより Cell #1と Cell #6を伸ばすことに決めた。

Final Status of pre-tuning

STF Cavity Group Meeting @2010/6/7 4

Without jigs

With jigs