Question

Alpha particles are emitted by radioactive source at the rate of three per every minute on the average. the number of particles is distributed according to the Poisson distribution. Calculate the probability of getting exactly 4 emissions in one minute.

Answer 1

The forces that typically remove particles in granular media filters include: Transport Mechanisms: Sedimentation--Density of particle is significantly greater than water and deviates particulate path from the water streamlines. ... Short range surface forces.