NRE 3112/NE/MP 6757 Homework Set #2
1. For the Poisson distribution: P ( x ) =
xe
x!
Due Date: 2-12-2007
, prove:
(a)
P( x) = 1
(b) x =
x =0
2. A radioactive sample gave 2000 counts in 5 min. When the sample was removed,
the scaler recorded 1000 counts

NRE/MP 3112/6757 Homework Set #3
Due: 2-26-07
1. Assuming that W=26.2 eV/ion pair and the Fano factor F=0.17 for argon, find the mean and
expected standard deviation in the number of ion pairs formed by the absorption of 1 MeV of
radiation energy.
2. Expl

NRE 3112/NRE/MP 6757 Homework #1
Due Date: 1-24-2007
1. Use definition of the Laplace transform,
Lcfw_f(t) = F(s) =
f (t )e st dt
0
Derive the Laplace transform for the following time domain signals.
(a) f(t) = A (t ) where A is a constant
(b) f(t) = A u

Radiation Physics Review
Decays
Alpha (Helium nucleus) short range; stopped by paper
Beta (electron) stopped by aluminum
o Plus: electron and antineutrino
o Minus: positron and neutrino
Gamma stopped by lead
Notation for Reactions: a + X Y + b = X(a,b)Y
D