[Michimura, Akutsu, K.Tanaka]

 

As preperation, we installed two QPD boards into GQPD1 and GQPD2 and plugged Dsub cables to them. At this time, we passed their cables under the optical table. Moreover, we added the spacer of Gig-E camera and adjusted the height (Finally we use 2 spacers).

 

First, Height of the BRT output beams to TMSX table was re-adjusted with HBS and GST0, using a laser leveler, so that output beams are parallel to the ground. We roughly centered to GQPD1 and GQPD2 with ceilling lights on. Figure 1 is the appearence that green beam enters them. Secondly, we aligned beam to green DC PD to maximize the signal(~12 counts including 6 counts by ceiling lights).

 

Finally, we centered Gig-E camera and checked the green beam's appearence. Figure 2 is the appearence.