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//chapter-8 page 336 example 8.1
//==============================================================================
clc;
clear;
//For a four cavity Klystron
V0=14500;//Beam voltage in V
I=1.4;//Beam current in A
f=10^10;//Operation frequency in Hz
p0=10^(-6);//dc electron charge density in C/m^3
p=10^(-8);//RF charge density in C/m^3
V=10^5;//Velocity perturbations in m/sec
e0=8.854*10^(-12);//Permittivity of free space in F/m
R=0.4;
//CALCULATION
v0=(0.593*10^6*sqrt(V0))/10^8;//The dc electron velocity in 10^8 m/sec
w=2*(%pi)*f;//angular frequency in rad/sec
v=v0*10^8;
c=(w/v);//The dc Phase Constant
wp=(sqrt(1.759*10^11*(p0/e0)))/10^8;//The Plasma Frequency in 10^8 rad/sec
wp1=wp*10^8;
wq=(R*wp1)/10^8;//The Reduced Plasma Frequency in 10^8 rad/sec
J0=p0*v;//The dc beam current density in A/sqm
J=(p*v)+(p0*V);//The instantaneous beam current density in A/sqm
//OUTPUT
mprintf('\nThe dc electron velocity is v0=%2.3f *10^8 m/sec \nThe dc Phase Constant is c=%1.2f rad/sec\nThe Plasma Frequency is wp=%1.2f *10^8 rad/sec \nThe Reduced Plasma Frequency is wq=%1.3f *10^8 rad/sec \nThe dc beam current density is J0=%2.1f A/sqm \nThe instantaneous beam current density is J=%1.3f A/sqm',v0,c,wp,wq,J0,J);
//=========================END OF PROGRAM===============================
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