Run Coordinator report: Spring 2018 r8

This is a brief summary of the progress over the week (Feb 28 - Mar7) while I was Run Coordinator. During those days we had CW beam on target in Hall D for 90.8 hours (of the 158 hours of scheduled program), and of that time we used 90.1 hours (ABU). Before the outage of 3/5/2018, we collected about 10 billion triggers, bringing the total triggers to ~75 billions for the Spring 2018 run. During this week one of the main Accelerator's focus was to deliver high current to Hall A and Hall C, and ~20 uA and ~60 uA have been stably delivered [cf. 3541963 on 3/3].

Some special tasks performed in this week include:

• Hall D low-current lock tests for TAC runs (on 3/1 and 3/5), succeded in good horizontal and vertical orbit lock down to few nA.
• low intensity scan on 2/28, where we reverted the collimator position to the same values used in the previous scan and restored the CDC window offset.
• TPOL studies on 3/3, with converter changed to 750um, with the goal to provide a data sample to evaluate possible pile-up in the TPOL and to determine the required prescale factor for the PS trigger.
• made threshold scan for CDC on 3/4.
• collected data with empty target on 3/4.

During the accelerator downtimes, we made controlled accesses on 3/2 when the North Linac was down to install the stand for the PWO calorimeter and on 3/5, before the nature of the downtime was clarified, for FCAL bases replacement, NPS Compcal prototype, and swap of electronics board in the Tagger Hall.