Compton scattering experiment

[Viona]

TL;DR

Is the incident X-ray beam, with the original wavelength, detected at different scattering angles in Compton scattering experiment or only at zero scattering angle?

I was reading about Compton scattering. I have a question I did not find an answer for it in the book (Concepts of Modern Physics-Sixth Edition-Arthur Beiser) or in the internet search. My question is:
Is the incident X-ray beam, with the original wavelength, detected at different scattering angles in Compton scattering experiment or only at zero scattering angle? If the answer is yes, why?

 

[gleem]

Doesn't the attachment in your OP answer your question?