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Diffraction Practicals
[
CALC
]
#
Calibration
: If a
spot separation g on the negative is
[mm] for a known d-value of
[Å]
, then the camera constant λL is g×d=
[mm-Å].
If
operating voltage is
[kV]
, then electron wavelength is λ=
[Å] and the camera length L is
[m].
If
a spot separation g on the negative is
[mm]
, then the d-value is λL/g=
[Å].
After digitizing at
[dpi]
, a spot separation g of
[pixels]
has d-value of dpi×λL/g=
[Å].
A
[/nm] reciprocal scalebar
is g×dpi×λL=
[pixels] wide.
Note
: Edit values in
red
&
green
text, then press
[
CALC
]
to update values & increment #.
Red
text values are used in all subsequent calculations.
links:
recent
ancient
Content Modernization
:
NanoWrld Expl
: Concepts: FieldWidth/CamConst
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