Element
| Symbol | K |
| Z | 19 |
| Atomic Weight | 39.1020012 |
| Density | 0.861999989 |
|
Edge Energies (keV)
| K | 3.60700011 |
| L1 | 0.340999991 |
| L2 | 0.297300011 |
| L3 | 0.294600010 |
| M | 3.40000018E-02 |
| K-alpha | 3.31299996 |
| K-beta | 3.58899999 |
| L-alpha | 0.00000000 |
| L-beta | 0.00000000 |
|
Edge jumps
| K | 8.83687401 |
| L1 | 1.15215552 |
| L2 | 0.00000000 |
| L3 | 0.00000000 |
|
Fluorescence yield
| K | 0.140000001 |
| L1 | 2.39999994E-04 |
| L2 | 2.69999990E-04 |
| L3 | 2.69999990E-04 |
|