Table 9.
Summary of Iγ values (expressed per 100 disintegrations of 224Ra) determined at NIST in different experiments with different fits. Stated uncertainties are the combined standard uncertainties estimated as shown in Table 8. The LET + HET fits were used for the reported Iγ.
| Source | Fit | I γ |
|---|---|---|
| E2-A2 | Genie (2000) | 4.007(23) |
| E2-A2 | LET + HET | 4.008(23) |
| E3-A2 | Genie (2000) | 3.946(30) |
| E3-A2 | LET + HET | 3.943(30) |
| E4-A2 | Genie (2000) | 3.979(26) |
| E4-A2 | LET + HET | 3.987(26) |
| S3-A | Genie (2000) | 4.027(36) |
| S3-A | LET + HET | 4.028(36) |