In a scattering experiment, a beam of X-rays scatters off a copper target. 1000 scattered X-rays are detected and the angle that each scattered ray makes to the beam is recorded (in units of degrees). The file: scatter.dat contains this data in one column of 1000 rows. The file: scatterW.dat contains exactly the same data in ten columns of 100 rows. The file: scatter.pdf contains exactly the same data in a format that prints on one page. The data have been sorted from 180 deg (backscatter), to 0 deg (small angle scattering), but of course, the scattered rays were detected in a seemingly random order. Calculate the differential cross section at 10 different angles, and plot the results. Note that the solid angle between angles theta1 and theta2 is: 2 pi ( cos(theta1)-cos(theta2) ) The copper target has nt=1.5 x 10^(27)/m^2 target particles. 10000 X-rays were incident in the beam to produce the 1000 scattered X-rays. Obviously target cross sections are very small. The usual unit for this small area is: 1 barn= 10^(-28) m^2 Use it! Unit for solid angle is steradian (denoted sr).