Table 3.
Argon released from PAC solar wind collector in 23-step UV laser ablation combined with subsequent pyrolysis of the laser-ablated area. Atmospheric contamination and blank were removed assuming both have isotopic composition of atmospheric argon (Lee et al., 2006). “R” indicates repeated extraction with the same laser power. Errors are 1σ.
| Laser Power, mJ | Total 36Ar, 108 at/cm2 | 38Ar/36Ar | 40Ar/36Ar | SW 36Ar/38Ar | SW 36Ar, 108 at/cm2 |
|---|---|---|---|---|---|
| 0.3 | 5.1 ± 0.4 | .1814 ± .0009 | 265.8 ± 2.7 | 8.060 ± 0.528 | 0.6 ± 0.1 |
| 0.5 | 4.0 ± 0.3 | .1789 ± .0011 | 258.1 ± 2.6 | 8.509 ± 1.007 | 0.5 ± 0.1 |
| 0.7 | 8.4 ± 0.5 | .1833 ± .0008 | 270.1 ± 2.5 | 7.483 ± 0.452 | 0.8 ± 0.1 |
| 0.9 | 5.6 ± 0.5 | .1804 ± .0028 | 262.2 ± 2.6 | 8.191 ± 1.203 | 0.7 ± 0.1 |
| 1.1 | 6.7 ± 0.6 | .1818 ± .0009 | 244.0 ± 2.4 | 6.581 ± 0.200 | 1.2 ± 0.1 |
| 1.3 | 3.9 ± 0.2 | .1774 ± .0017 | 129.7 ± 1.3 | 5.921 ± 0.101 | 2.2 ± 0.1 |
| 1.5 | 2.2 ± 0.1 | .1702 ± .0022 | 87.2 ± 0.9 | 6.151 ± 0.112 | 1.6 ± 0.1 |
| 1.8 | 4.2 ± 0.2 | .1744 ± .0017 | 63.7 ± 0.6 | 5.863 ± 0.072 | 3.3 ± 0.2 |
| 2 | 2.8 ± 0.1 | .1713 ± .0048 | 40.7 ± 0.4 | 5.931 ± 0.194 | 2.4 ± 0.1 |
| 2.4 | 2.0 ± 0.1 | .1559 ± .0021 | 6.9 ± 0.1 | 6.447 ± 0.089 | 2.0 ± 0.1 |
| 2.7 | 8.9 ± 0.4 | .1749 ± .0016 | 1.91 ± 0.03 | 5.721 ± 0.052 | 8.8 ± 0.4 |
| 3 | 42.0 ± 1.7 | .1729 ± .0007 | 1.49 ± 0.02 | 5.786 ± 0.008 | 41.8 ± 1.7 |
| 3.3 | 24.5 ± 1.0 | .1776 ± .0011 | 3.62 ± 0.03 | 5.633 ± 0.037 | 24.2 ± 1.0 |
| 3.8 | 16.7 ± 0.7 | .1751 ± .0015 | 17.5 ± 0.2 | 5.737 ± 0.053 | 15.7 ± 0.7 |
| 3.8 R | 2.1 ± 0.1 | .1719 ± .0032 | 33.0 ± 0.3 | 5.887 ± 0.123 | 1.9 ± 0.1 |
| 4.2 | 49.4 ± 2.0 | .1811 ± .0010 | 1.12 ± 0.01 | 5.522 ± 0.005 | 49.2 ± 2.0 |
| 4.2 R | 3.9 ± 0.2 | .1820 ± .0020 | 13.8 ± 0.1 | 5.505 ± 0.064 | 3.7 ± 0.2 |
| 5 | 62.4 ± 3.0 | .1839 ± .0009 | 2.38 ± 0.03 | 5.438 ± 0.006 | 61.9 ± 3.0 |
| 5 R | 11.2 ± 0.6 | .1986 ± .0019 | 5.6 ± 0.1 | 5.030 ± 0.050 | 11.0 ± 0.6 |
| 5 R | 9.2 ± 0.5 | .2047 ± .0018 | 7.3 ± 0.1 | 4.875 ± 0.044 | 9.0 ± 0.5 |
| 6.2 | 8.2 ± 0.5 | .1952 ± .0028 | 15.1 ± 0.2 | 5.115 ± 0.078 | 7.8 ± 0.5 |
| 6.2 R | 9.3 ± 0.4 | .1967 ± .0017 | 43.0 ± 0.4 | 5.048 ± 0.052 | 8.0 ± 0.3 |
| 6.2 R | 2.4 ± 0.2 | .2125 ± .0034 | 40.6 ± 0.4 | 4.624 ± 0.087 | 2.1 ± 0.2 |
| Melt | 23.4 ± 1.0 | .1972 ± .0031 | 180.5 ± 1.8 | 4.751 ± 0.190 | 9.3 ± 0.5 |
| Total | 318.5 ± 4.6 | .1829 ± .0004 | 45.7 ± 0.17 | 5.498 ± 0.011 | 269.6 ± 4.3 |