diffractometer will emit different wavelengths

of $x-$rays, as shown in the table below. Imagine we bought a used x$-$ray diffractometer with no manual

so we have no idea which type of anode is in our system and therefor don't know what x$-$ray wavelength

the system uses for analysis. To try and figure out the anode material our system uses, we analyze a

polycrystalline sample of pure iron with a bcc structure $($for this problem, let's say the lattice constant $=$

$3\mathrm{.}266$ Angstrom although this is not the real value for ferrite$)$ in our diffractometer and we measure the

diffraction pattern shown below.

Analyze the diffraction pattern and use the list of different anode materials and their corresponding x $-$

ray wavelengths to determine the material used for the anode generating x$-$rays

in this diffractometer.