Make New Entry,
Make Followup Entry
User name R. Michaels
Log entry time 04:33:28 on June18,2010
Entry number 327199
keyword=investigating R-HRS problem (low rate)
Problem: R-HRS rate is very low in det1,2.
Will try to diagnose with low-current T5. BTW, the last run
27906 had ps8=2.
Laser 65, slit 13.9
L-HRS T5 rate = 17.2 kHz
R-HRS T5 rate = 95 Hz
04:10 .... VDCs turned on.
Do a run 27909 and 6956.
Problem: Cannot see much diff between beam "on" and "off" on L-RHS.
Rates about 12 kHz vs 11.5 khz
Ask for slit = 15.
This gives 159 kHz (Left) and 5.8 kHz (Right).
Runs 27911 and 6957.
Comparing to earlier alignment runs, the Y looks ok (not shown)
but the X seems off by 1 cm (see fig 1). We aren't in counting
mode for Quartz.