Dear Kees:

This is my Hall A run coordinator report for E03-101 covering the
week from the afternoon of Wednesday, June 13 until Wednesday, June
20 2007. The outgoing run coordinator was Brad Sawatzky, incoming is
Xiaodong Jiang.

After the Hall C pass change and beam studies on Wednesday we
continued taking radiator-in and radiator-out production data on 3He
until Saturday morning with a 3.1 GeV electron beam. After the energy
change and Hall A pass change from three to four passes we started
production data at 4.1 GeV Saturday evening. We stayed at that energy
for the rest of my term. For both energies supplemental data on 12C
were taken whenever our primary objectives were met. This allowed us
to efficiently utilize spare time between scheduled energy changes.

During (approximately) this week the Hall availability was 98%. The
week passed without any major downtime. The two most noticeable
incidences required a controlled access. In both cases we experiment
resumed data taking within about 45 min. These incidences were a trip
of the HRS-R Q1 magnet and the re-pressurizing of the 3He target. The
latter was needed after a target IOC reboot left the target system in
a state with incorrect valve setting allowing 3He to slowly go from
the target cell back into the 3He tank.

The accelerator delivered stable beam. I am not aware of pending
problems. The experiment schedule is now being finalized.

All the best,
Steffen