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// Chapter 4 AdditionalExample 2
//==============================================================================
clc;
clear;
// input data
lamda1 = 0.022*10^-10; // wavelength of scatterd X-rays in m
theta = 45; // scatterring angle in degrees
h = 6.625*10^-34 // plancks constant
mo = 9.11*10^-31 // mass in Kg
c = 3*10^8; // vel. of light
// Calculatioms
// from Compton theory ,Compton shift is given by
// lamda' - lamda = (h/(mo*c))*(1-cosθ)
theta_r = theta*%pi/180; // degree to radian conversion
lamda = lamda1-( (h/(mo*c))*(1-cos(theta_r))) // incident Wavelength
// Output
mprintf('Wavelength of incident beam = %3.4f Å',lamda*10^10);
//==============================================================================
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