October 24, 1997

• Some maintenence works were carried out during 9:00 AM - 5:00 PM. Beams were not stored during this period. A control software (Data Channel codes) was also updated in the afternoon.
• Vacuum conditioning continued after 5:00 PM.
• An integrated stored current of 7.0 A*hrs was gained during 9:02 AM (Oct. 23) and 9:00 AM (Oct. 24). Average beam current was 292 mA during this period.

Beam current (blue) and beam lifetime (red) from 9:00 AM, Oct. 24 to 9:00 AM, Oct. 25.

Progress of the beam lifetime due to successive vacuum conditioning.
Products (red dots) of the beam current and the beam lifetime are shown as a function of the integrated stored current. Average vacuum pressures (blue dots) per unit stored current (which roughly measures the photo-desorption yield of the duct walls) are also plotted.