Hi Daniel,

Thanks - that does seem wrong. FWIW, Larch uses XrayDB which uses corehole widths from Krause and Oliver for Z>10 and Keski-Rahkoken nand Krause for Z<10.

For the F K edge, this give 0.2089 eV. For this or other core-hole widths, and assuming you have Python installed, try:

~> pip install xraydb

~> python

>>> import xraydb

>>> xraydb.core_width('F', 'K')

0.2089

Or install Larch and use

~> larch

larch> core_width('F', 'K')

0.2089

On Mon, Sep 28, 2020 at 12:08 PM Daniel Przyrembel <daniel.przyrembel@fu-berlin.de> wrote:

To Whom it may concern,

I am quite sure there is a general lifetime/energy-width conversion error
in Hephaestus: All core-hole lifetimes seem to come out too long by a
factor of - as it seems exactly - 10:
E.g. the lifetime of the F K-edge with a width of 0.25 eV is given as
25.30 fs instead of ca. 2.6 fs (width = h_bar / lifetime).

This glitch was present in 0.9.25 already and, as I noticed after
updating, prevails in 0.9.26. I have not tried earlier versions.

Best regards,

Daniel

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