3.3.1.76. NXedge¶
Status:
base class, extends NXobject
Description:
An absorption edge is a sharp discontinuity in the X-ray absorption spectrum ...
An absorption edge is a sharp discontinuity in the X-ray absorption spectrum of an element that occurs when the incident photon energy equals the binding energy of a core electron, enabling photoionization of that shell.
Symbols:
No symbol table
- Groups cited:
none
Structure:
name: (optional) NX_CHAR
Name of the absorption edge specified using ...
Name of the absorption edge specified using IUPAC notation (e.g.,
K,L2,M5), which identifies the shell and sub-shell from which the electron is ejected.Correspondence between IUPAC and electronic level notations:
IUPAC
Electronic level
K
1s
L1
2s
L2
\(2p_{1/2}\)
L3
\(2p_{3/2}\)
M1
3s
M2
\(3p_{1/2}\)
M3
\(3p_{3/2}\)
M4
\(3d_{3/2}\)
M5
\(3d_{5/2}\)
N1
4s
N2
\(4p_{1/2}\)
N3
\(4p_{3/2}\)
N4
\(4d_{3/2}\)
N5
\(4d_{5/2}\)
N6
\(4f_{5/2}\)
N7
\(4f_{7/2}\)
O1
5s
O2
\(5p_{1/2}\)
O3
\(5p_{3/2}\)
O4
\(5d_{3/2}\)
O5
\(5d_{5/2}\)
O6
\(5f_{5/2}\)
O7
\(5f_{7/2}\)
P1
6s
P2
\(6p_{1/2}\)
P3
\(6p_{3/2}\)
P4
\(6d_{3/2}\)
P5
\(6d_{5/2}\)
Any of these values:
K
L1
L2
L3
M1
M2
M3
M4
M5
N1
N2
N3
N4
N5
N6
N7
O1
O2
O3
O4
O5
O6
O7
P1
P2
P3
P4
P5energy: (optional) NX_FLOAT {units=NX_ENERGY}
Energy of the absorption edge.
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