1. APEX RUN-11 APEX Schedule Planned Feb. 23, 2011 2pm ~ 3 ramps 8am 12x12 store Physics store Beta* unsqueeze +s* adjustment GRD+team 6x6 store AC dipole Orbit, tune, coupling,chr omaticity feedback Minty, Al 5pm12pm Optics measurements SBST optics correction Bai, Glenn, Joe, GRD Store 109x109 12am 11pm back2physics 10HzGOFB ORM(20min) store activity Minty, Liu 7pm Injection 6x6 9pm Polarization profile measurement Huang+RHIC CNI team Polarization profile measurement Huang+RHIC CNI team Injection 109x109 Lower gammaT limit Montag 10Hz orbit feedback at store Michnoff Optics measurements Bai, Glenn, Joe, GRD 2 6x6 ramp+ 1 109x109 ramp Energy ramp only Spin Flipper Bai,Pablo,Oddo, Craig,Kevin Energy ramp May need rot0 for collision

2. APEX RUN-11 APEX Schedule Feb. 23, 2011 2pm ~ 3 ramps 8am 12x12 store Physics store Beta* unsqueeze +s* adjustment GRD+team 6x6 store AC dipole IR non- linear correction Zimmer 5pm12pm Optics measurements SBST optics correction Bai, Glenn, Joe, GRD Store 109x109 12am 11pm back2physics 10HzGOFB ORM(20min) store activity Minty, Liu 7pm Injection 6x6 9pm Polarization profile measurement Huang+RHIC CNI team Polarization profile measurement Huang+RHIC CNI team Injection 109x109 Lower gammaT limit Montag 10Hz orbit feedback at store Michnoff Optics measurements Bai, Glenn, Joe, GRD 2 6x6 ramp Energy ramp only Spin Flipper Bai,Pablo,Oddo, Craig,Kevin Energy ramp May need rot0 for collision

3. APEX RUN-11 Effects of the un-squeezing Asked for a 10% change, from 0.6412 (calculated) to 0.7054. Tune & Chromaticity changed after the un-squeezing was completed.

4. APEX RUN-11 Optics Measurements Un-squeezing is effectively seen by Mei’s measurements: BEFORE AFTER

5. APEX RUN-11 Optics Correction

6. APEX RUN-11 Optics Correction Applying 40% IP2+12 correction removing 40% IP2+12 correction 80% IP6 correction 80% IP6, 20% IP12 correction and IP2 20% Removing all correctionApplying 80% IP6 correction

7. APEX RUN-11 Polarization Profile Measurements intensity scan at injection with thin and thick target for 12 bunches. AGS polarization measurement were also taken. polarization profile measurements taken at store for both rings and both planes. For this ramp, the vertical tune swing was moved earlier to below 100GeV. Slightly higher polarization but lower intensity compared to regular fill. The polarization profiles are more profound in blue than in yellow. Induced current for BNL and Hamamatsu detectors were measured. Hamamatsu detectors have less induced

8. APEX RUN-11 Next APEX Session March 9