Filters for fluorescent XAFS experiments
Here, the candidates of filters
for fluorescent XAFS experiments and the filters equipped at each experimental
station are listed. The filter is used in order to minimize the scattering
signal detected by a fluorescent XAFS detector while passing through the
fluorescence signal. Although it is effective in some cases, the fluorescence
from the filter itself is also detected by the detector. Especially the K beta
fluorescence from the filter cannot be separated from the K alpha emitted by
the sample even if an SSD is used. It can be minimized by using dispersive slit
properly.
Candidates
of filters for each absorption edge.
List
of filters equipped at each station
Table 1. Candidates of filters for each
absorption edge.
|
target elements |
E(K-edge)/eV |
E(K alpha)/eV |
candidates of filters |
|
K |
3607.8 |
3313.8 |
|
|
Ca |
4038.1 |
3691.7 |
|
|
Sc |
4489 |
4090.6 |
|
|
Ti |
4964.5 |
4510.8 |
|
|
V |
5463.9 |
4952.2 |
Ti |
|
Cr |
5988.5 |
5414.7 |
V |
|
Mn |
6537.6 |
5898.8 |
Cr |
|
Fe |
7111.2 |
6403.8 |
Mn |
|
Co |
7709.5 |
6930.3 |
Fe |
|
Ni |
8331.7 |
7478.2 |
Co |
|
Cu |
8980.3 |
8047.8 |
Ni |
|
Zn |
9660.7 |
8638.9 |
Cu |
|
Ga |
10368.2 |
9251.7 |
Zn |
|
Ge |
11103.6 |
9886.4 |
Ga |
|
As |
11865 |
10543.7 |
Ge |
|
Se |
12654.5 |
11222.4 |
As |
|
Br |
13470 |
11924.2 |
Se |
|
Kr |
14324.4 |
12649 |
Se, Br |
|
Rb |
15202.3 |
13395.3 |
Br, Kr |
|
Sr |
16107 |
14165.0 |
Kr, Rb |
|
Y |
17038 |
14958.4 |
Rb, Sr |
|
Zr |
17998.9 |
15775.1 |
Sr, Y |
|
Nb |
18986.9 |
16615.1 |
Y, Zr |
|
Mo |
20003.9 |
17479.3 |
Zr, Nb |
|
Tc |
21047.3 |
18367.1 |
Nb, Mo |
|
Ru |
22119.3 |
19279.2 |
Mo, Tc |
|
Rh |
23219.8 |
20216.1 |
Tc, Ru |
|
Pd |
24348 |
21177.1 |
Ru, Rh |
|
Ag |
25516.5 |
22162.9 |
Rh, Pd |
|
Cd |
26715.9 |
23173.6 |
Rh, Pd, Ag |
|
In |
27942.0 |
24209.7 |
Pd, Ag, Cd |
|
Sn |
29194.7 |
25271.3 |
Ag, Cd, In |
|
Sb |
30486.0 |
26359.1 |
Cd, In, Sn |
|
Te |
31811.4 |
27201.7 |
In, Sn, Sb |
updated on