[K. Nagano, Yokogawa, Sugimoto, Ko. Yamamoto, Akutsu]

After placing two QPDs on TMSY bench, we checked signals from them.
Temporarily, we used EY0 ADC1 ch28--31 and IOP channels since RT model and cables for TMS were not prepared.
(Nominal TMS channels are ADC1 ch4--19.)
For both QPDs whose gain switch was turned to larger one, the measured mean counts in each channel (i.e. each element) are ~-220 when green light was on the QPD and about ~-200 when it was off.
This means green light corresponds to about 20 counts.
(In this measurement, room light was on but LED light was off.)

Tomorrow, we will connect two QPDs to the nominal channels and investigate their signals more after centering light.