I don't know. harry
On Wed, Mar 27, 2013 at 1:37 AM, David Roberson <[email protected]> wrote: > Is there a time frame associated with these activities? How many > femtoseconds does it take for the neutron to go through the nucleus or > interact with it? I am having a tough time getting a handle upon this > behavior. ;-) > > Dave > > > -----Original Message----- > From: Harry Veeder <[email protected]> > To: vortex-l <[email protected]> > Sent: Wed, Mar 27, 2013 12:38 am > Subject: Re: [Vo]: Low Energy Neutrons and Local Temperature > > On Tue, Mar 26, 2013 at 6:29 PM, David Roberson <[email protected]> wrote: > >> >> One question that I keep asking is how quickly does a quantum mechanical >> effect take place? How long does a neutron have to be near to a steady >> nucleus before it is sucked in? > > As we all things quantum mechanical it is a matter of probabilities. > In fact there is a probability a neutron can pass right > through a nucleus and leave the mass number unchanged. The probability > that a neutron will be absorbed by a nucleus > is proportional to the speed of the neutron. After it is absorbed the > nucleus can undergo fission or whatever. > > Harry >
