Fusion Message Board

In this space, visitors are invited to post any comments, questions, or skeptical observations about Philo T. Farnsworth's contributions to the field of Nuclear Fusion research.

Subject: Re: Looking for Particles
Date: Oct 31, 5:34 pm
Poster: Richard Hull

On Oct 31, 5:34 pm, Richard Hull wrote:

>Does the BC neutron scintillator plastic provide any energy discrimination? That is, if you hook up your pmt to a pulse height analyzer, can you tell that they are 2 MeV neutrons, rather than something else from stripping, etc.


Absolutely not!

I have the extended data sheets and have talked extensively with the two specialists there on this issue.

In proton recoil, we are strictly working with random collisons at random angles, with a particle (neutron). We can certainly use the device to accurately measure the proton energy, but can never get any info about the neutron causing the recoil due to the nearly infinite range of kinetic energies possible for the proton based on unknown collision dynamics.

It is great for warranting a fast neutron event has taken place, but gives us no info about the energy of the fast neutron.

Richard Hull