October 29, 1997

• COD (Closed Orbit Distortion) correction was carried out in the morning.
• Adjustment on the SR axis was carried out in the afternoon (1:01 - 3:17 PM).
• Orbit correction data for an insertion device (EMPW#28) was collected (8:12 PM - 0:55 AM, Oct. 30). Correction data for the operation modes (HUP, HUN, E2P, E2N; see notes below) of EMPW#28 were taken.
• Operational data in this morning:
  

  Time	Beam current	Beam lifetime	I*tau	Average pressure	Integrated current
  9:50 AM	383.2 mA	445 minutes	171 A*minutes	0.43 nTorr	172.7 A*hours

(Note) Some operational modes of the elliptically-polarized multipole wiggler EMPW#28
HUP: Helical - Undulator - Positive helicity
HUN: Same as above, but with negative helicity
E2P: Elliptically polarized - 1:2 - Positive helicity
E2N: Same as above, but with negative helicity

Beam current (blue line) and beam lifetime (red line) around the clock.