a) | 13.5 | | | | | | |
| 13.0 | | | | | | |
(%) | 12.5 | | | | | | |
Initial asymmetry | | | | | | |
12.0 | | | | | | |
| | | | | | |
| 11.5 | | | | | | |
| 11.0 | | | | | | |
| 0.0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 |
Time (µs)
b) | 13.0 | | | | | | |
| 12.5 | | | | | | |
(%) | | | | | | | |
Initial asymmetry | 12.0 | | | | | | |
11.5 | | | | | | |
| 11.0 | | | | | | |
| 0.0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 |
Time (µs)
c) | 13.5 | | | | | | |
| 13.0 | | | | | | |
(%) | 12.5 | | | | | | |
Initial asymmetry | | | | | | |
12.0 | | | | | | |
| | | | | | |
| 11.5 | | | | | | |
| 11.0 | | | | | | |
| 0.0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 |
Time (µs)
Figure 1 Muonium precession signal at 2G in n-hexane after a) 4, b) 7 and c) 10 freeze- pump-thaw cycles.
For the second experiment, all of the n-hexane used in the first experiment was recovered into a sample bottle and dried using a small piece of clean sodium. The liquid was carefully poured back into Vessel 1 and remounted on the rig. After freezing and subsequent evacuation and re-pressurisation with helium, the dry n- hexane was exposed to six freeze-pump-thaw cycles. Between each cycle, helium was bubbled through the liquid for several minutes. Again, the sample cell was attached to one of the sample delivery tubes and pumped for 1 hr before being loaded with n-hexane.
