With Lucia, Takahashi-san (Remotely),
= ITMX & ITMY =
-- We found that the calibration factor was old enough. (somehow it seems I have forgot to update, sorry for this.);
-- so far we were using 0.206um/counts (from klog#5249), the new one is -0.321 um/counts from klog#7081, with conversion factor 40V/2**16counts.
-- We changed the factor on 18:45 JST to the new one.
GAS-stage | old factor [um/cnts] | new factor [um/cnts] | Note |
ITMX-F0 | -0.22 | -0.2204 | (*0) |
ITMX-F1 | -0.182 | -0.3633 | (*1) |
ITMX-F2 | -0.215 | -0.4298 | (*1) |
ITMX-F3 | 0.194 | 0.38875 | (*1) |
ITMX-BF | -0.296 | -0.5925 | (*1) |
GAS-stage | old factor [um/cnts] | new factor [um/cnts] | Note |
ITMY-F0 | -0.3 | -0.3 | (*0) |
ITMY-F1 | 0.342 | 0.3415 | |
ITMY-F2 | 0.098 | 0.098 | |
ITMY-F3 | 0.425 | 0.21876 | (*3) |
ITMY-BF | 0.206 | -0.3212 | (*2) |
(*0) mechanically locked.
(*1) in the installation phase, the calibration factors were measured with an oscilloscope and the conversion factor (volt to count) was mis-calculated by a factor of 2, so far.
(*2) This measurement was updated on Nov. 21th 2018.
(*3) This was due to my mistake.
ref: ITMY-GAS klog#5556, klog#5578, klog#7081,
ref: ITMX-GAS klog#4211, klog#4275, klog#4406,