Log entry time 04:25:59 on November 17, 2008

Entry number 249313

This entry is a followup to: 249288

Followups:

• 249314 11/17/08 04:36 Jin Correction : Pol. History of Session # 241
• 249924 11/20/08 08:53 Jin Huang Polarization History for Vertical Pumping Production Run

There has been 4 major spin flip run session since start of production. 
The target polarization history has been ploted below.

For Nov 08 to Nov 12 (Spin Flip Session # 209), we are using only FAP 
laser. And equilibrium pol. is stablized to 46%

For Nov 12 to Nov 13 (Spin Flip Session # 222), two new comet laser has 
been first used in lab. The equilibrium pol. jumped to 62%

Since Nov 16 (Spin Flip Session # 241 & 242), target is pumped 3 Comet 
Laser. And the correction coil is turned on to minimize AFP loss before 
before 10PM Nov 16. However, correciton coil canncelled too much of 
field gradiant, which seems to causing masing effect when Pol. goes 
above 60%. After it's turned off, Pol. has been keep rising up to 65%.

Pol. History of Session # 209

Pol. History of Session # 222

Pol. History of Session # 241

Pol. History of Session # 242