Homework Statement
Calculate the parallel projection on an infinite object defined by:
f(x,y) = cos(2pi(2x+y)) from the angle phi = 45 degrees.
Hint: Use the Central Slice Theorem and Fourier Transform (FT) of f(x,y).
2nd Hint: On a 2D image in Fourier space, delta functions are...
Homework Statement
Prove that the energy of a cyclotron can be expressed as:
E (MeV) = 4.8e-3 (B * R * q)2/A
Where B is the magnetic field in Tesla
R is the maximum radius of the cyclotron in cm.
q is the charge of the particle accelerated.
A - is the mass number.
We can ignore...
Homework Statement
I'm working a homework problem that states:
A very old specimen of wood contained 1012 atoms of 14C in 1986.
• How many 14C atoms did it contain in the year 9474 B.C.?
• How many 14C atoms did it contain in 1986 B.C.?
Homework Equations
N(t) =...
Homework Statement
I am working a homework problem that is trying to find the mean radius, \bar{r} from the midpoint of a cylinder.
The problem states:
What is the mean radius, \bar{r} from the midpoint of a cylinder of radius a and height h to its boundary surface? Evalute mean radius...
This thread can be disregarded. I was able to solve the problem.
The solution to this problem is to use exponential attenuation:
N = N(0) exp(-uL). The approach is to solve for L for given u and u(en) values when 99% of the photons are allowed to pass thru the sphere.
Homework Statement
This problem comes from Frank Attix's book Intro to Radiological Physics and Rad Dosimetry.
From ch. 4 - problem #1:
Approximately what diameter for a sphere of water would be required to approach radiation equilibrium wihin 1% at its center, assuming it contains a...
Homework Statement
How do you solve this probem for E:
E + sqrt(aE) = b
where 'a' and 'b' are constants.
I don't recall how to handle the exponents where you have E + aE^1/2 = b and solve for E.
Hello all, new member here also. Hopefully this thread is still active. I am working this problem as well. Based on the prior posts, here is how I am approaching the problem - but I'm still having trouble getting the answer in Attix (3.11e5).
We know that fluence is the integral of flux...