Table 2.
Fluence of 1H standard implant (×1015 H cm−2).a
| Measurement | 1H/16O | 1H/31P | 16O1H/16O2 |
|---|---|---|---|
| Crystal Lode #1 | 5.57 | 5.50 | 5.35 |
| Crystal Lode #2 | 5.54 | 5.59 | 5.53 |
| Mean Crystal Lode | 5.56 ± 0.04b | 5.55 ± 0.13b | 5.44 ± 0.26b |
| Lake Baikal #1 | 5.88c | 5.92c | 5.13c |
| Lake Baikal #2 | 5.95 | 5.99 | 5.52 |
| Lake Baikal #3 | 5.81 | 5.84 | 5.64 |
| Mean Lake Baikal | 5.88 ± 0.14b | 5.92 ± 0.15b | 5.43 ± 0.53b |
| Mean from atom ratiosd | 5.73 ± 0.41e |
a
Nominal implant fluence 6 × 1015 H cm−2.
b
Uncertainties on mean values are 2σ SDs of the measurements. Statistical uncertainties are insignificant.
c
Measured at 300 pAmps beam current; others were measured at 500 pAmps.
d
Mean of results from atomic ratios (each standard and ratio given the same weight).
e
Uncertainty does not include the uncertainty in the true water contents of the two apatites.