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//=====================================================================================
//Chapter 16 example 4
clc;clear all;
//variable declaration
Va = 2000; //accelerating voltage in V
e = 1.6*10^-19; //charge of electron in C
m = 9.1*10^-31; //mass of electron in kg
l = 0.015; //length of plates in m
d = 0.005; //distance between plates in m
S = 0.5; //the distance between the screen and centre of plates in m
//calcuations
V = sqrt(2*Va*(e/m)); //beam speed in m/s
Sd = (l*S)/(2*d*Va); //deflection sensitivity of the tube in mm/V
D = 1/(Sd); //defelection factor in V/mm
//result
mprintf("Beam speed = %3.3e m/s",V);
mprintf("\ndeflection sensitivity of the tube %3.3f mm/V",(Sd*10^3));
mprintf("\ndefelcction factor = %3.4f V/mm",(D*10^-3));
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