  In the context of Laue project for focusing hard X-/ soft gamma-rays, an
entire Laue lens, using bent Ge(111) crystal tiles, with 40 meters curvature
radius, is simulated with a focal length of 20 meters. The focusing energy band
is between 80 keV and 600 keV. The distortion of the output image of the lens
on the focal plane due to the effect of crystal tile misalignment as well as
the radial distortion arising from the curvature of the crystal is discussed in
detail. Expected detection efficiency and instrument background is also
estimated. Finally the sensitivity of the Laue lens is calculated. A
quantitative analysis of the results of these simulation is also presented.
