The curve observed on beamlines is the convolution of the curves of the two crystals in the mono, which is why it looks different
from the single -bounce curve in the textbooks.
mam
----- Original Message -----
From: "sankaran anantharaman"
Hi everyone,
Could anyone help me with this.
Why is that the Darwin reflectitivity curve plotted versus rotation angle (in text books for example) and rocking curve plotted against rotation angle (observed in the oscilloscope at XAS beamlines for example) look different?
I understand that the double crystal rocking curve (photon counts in Ionization chamber1 as a function of Bragg angle) is obtained by rotating the second crystal and recording the photon count. Is it right?
Regards, Sankaran Anantharaman _______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit