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User name X. Zheng
Log entry time 19:09:59 on July31,2001
Entry number 68481
keyword=Target - half wave plates moved to transverse
5:30 pm, moved 6 half waveplates from longitudinal to transverse position, removed the other 2 half waveplates from optics table. During g2 the condition for target field - half waveplate should be:
Field should never be in 180 degree
Field in 270 degree, always with half waveplates OUT
Field in 90 degree, always with half waveplates IN
Now the half waveplates are at IN position for transverse lasers. However, they are not well aligned, this will be done tomorrow together with final laser alignment for Shapiro.