| Differential cascade feeding - 5-level example
with n=3 |
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| 1s2s3l |
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| Quartet feeding |
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| 1s2s3l |
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| Doublet feeding |
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| 1s2s3s 4S |
| 1s2s3s 2S |
| 1s2s2p
2P |
| 1s2s2p
4P |
| 1s2 1S + e- |
| 1s22s
2S |
| 1s22s
2S |
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| 1s2s3l quartet states |
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| are blocked from |
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| Cascading to 1s22s |
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| ground
state |
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| 1s2s3l doublet
states |
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| are readily
depleted by |
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| Cascading to 1s22s |
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| ground
state |
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