Neutron Resonance: Cross Sections in Reaction w/ Targets

[ndtkhanhtrinh]

I want to know more about the cross sections in reaction neutron + targets which neutron has energy in the resonance of target. Help me!

 

[malawi_glenn]

Read Krane - Introductory Nuclear Physics, or similar textbook.

 

[sir-pinski]

Sure, I'd be happy to provide more information on neutron resonance and cross sections in reactions with targets.

Neutron resonance refers to the phenomenon where a neutron's energy matches that of a nucleus in a target material, causing a strong interaction between the two. This can result in the formation of a compound nucleus or the emission of other particles, such as gamma rays.

Cross sections, in this context, refer to the probability of a neutron-target interaction occurring at a given energy. In other words, it is a measure of how likely it is for a neutron with a specific energy to interact with a target nucleus.

The cross section is dependent on the energy of the neutron, the type of target nucleus, and the specific reaction taking place. For example, the cross section for a neutron capture reaction may be different from that of a neutron scattering reaction.

One important aspect of neutron resonance and cross sections is their role in nuclear reactors. In a nuclear reactor, neutrons are slowed down to increase their chances of interacting with target nuclei and sustaining a chain reaction. The cross section and resonance effects play a crucial role in determining the efficiency and safety of a reactor.

To determine the cross sections for a particular reaction, experimental measurements are typically carried out using particle accelerators or nuclear reactors. These measurements can then be used to validate theoretical models and make predictions for other reactions.

I hope this helps to answer your question and provide a better understanding of neutron resonance and cross sections in reactions with targets. If you have any further questions, please don't hesitate to ask.