Xenon poisoning

[wgurecky]

Description

The average neutron flux in the reactor may be estimated from the currently implemented point kenitics model. Use this flux to compute production and destrcution of Xe-135 and I-135. The cross sections and decay constants of these isotopes could be unrealistic to make the time-scales a little more classroom friendly.

Tasks

• Add batemen equations for Xe and I-135 to ractor physics.
• Add feedback of Xe-135 concentration to reactivity: increase neutron absorption as fn of Xe-135 concentration.