  An enhancement to the T-980 bent crystal collimation experiment at the
Tevatron has been completed. The enhancement was the installation of a pixel
telescope inside the vacuum-sealed beam pipe of the Tevatron. The telescope is
comprised of six CMS PSI46 pixel plaquettes, arranged as three stations of
horizontal and vertical planes, with the CAPTAN system for data acquisition and
control. The purpose of the pixel telescope is to measure beam profiles
produced by bent crystals under various conditions. The telescope electronics
inside the beam pipe initially were not adequately shielded from the image
current of the passing beams. A new shielding approach was devised and
installed, which resolved the problem. The noise issues encountered and the
mitigating techniques are presented herein, as well as some preliminary results
from the telescope.
