Log entry time 00:33:56 on May 30, 2009

Entry number 277446

This entry is a followup to: 277190

Followups:

• 277482 05/30/09 02:06 Jin Huang Check Laser Fiber Temperature
• 277726 05/30/09 21:25 Jin Huang Change Calibration Constant; EPR Calibration for Longitudinal- Field of Cell Moss; Correct Coils has been ON
• 279394 06/06/09 13:07 Target spin rotated to Transverse - (270 degrees)

1. Stop Production Run

2. NMR @ Trans. 58% Pol.

3. Stop Laser

4. Rotate Field to Long -

5. Setup 1/4 plate angles following Halog 273308

6. swap fibers following Halog 272648

7. power on laser

8. Swap Pickup Coil Cable(1->4); Change Calibration Constant (EPR Halog 273054); change NMR Default settings

8.5 Beam came back on without our request. Call MCC to take it off.

9. NMR @ Longitudinal; Last NMR give a 58% Pol.; Confirm sign is right.

Note1: The noise in Pickup coil has increased dramatically. It barely not overflow (107% offset). We may need to re-tuning the transverse pickup coil (for vertical and longitudinal polarization) during next access.

A copy of this log entry has been emailed to: yqiang, jpchen, doug, camsonne

2. NMR @ Trans. 58% Pol.

4. Rotate Field to Long -

5. Setup 1/4 plate angles following Halog 273308

5. Setup 1/4 plate angles following Halog 273308

7. power on laser

9. NMR @ Longitudinal; Last NMR give a 58% Pol.; Confirm sign is right.