TOPbase: f-values
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e-levels
f-values
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QUERY OPTIONS
OUTPUT OPTIONS
For the ionic system or range of systems, please indicate
Atomic number (NZ):
All
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
18
20
26
-
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
18
20
26
Electron number (NE):
All
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
-
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
If for each system you are interested in transitions (
i
-
j
) involving a particular spectroscopic series or range of series, please indicate for the initial state (
i
)
Spin multiplicity (2S
i
+1):
All
1
2
3
4
5
6
7
8
9
-
0
1
2
3
4
5
6
7
8
9
Angular momentum (L
i
):
All
0
1
2
3
4
5
6
7
8
9
-
0
1
2
3
4
5
6
7
8
9
Parity (P
i
, even=0, odd=1):
Both
0
1
-
0
1
For the transition(s) please give a value or range for
Angular momentum change (L
j
-L
i
)
All
0
+1
-1
-
0
+1
-1
If you want to be more specific, specify a range of
Initial levels:
-
Final levels:
-
or alternatively
Wavelength (A):
-
Do you want transitions ordered in:
Level order?
Wavelength order?
gf order?
Each transiton is uniquely idenfied by its
Atomic number (NZ)
Electron number (NE)
iSLP = (2S
i
+1)*100+L
i
*10+P
i
jSLP = (2S
j
+1)*100+L
j
*10+P
j
Initial level index (iLV)
Final level index (jLV).
Data to be listed may include
Electron configuration (
i
)
Electron configuration (
j
)
gf-value
gA-value
Wavelength (A)
Statistical weight (
i
)
Statistical weight (
j
)