Breed was designed to calculate the the amount of Xenon-135 we would be able to breed in the Oregon State University TRIGA reactor. In the photo to the left, the flux spectrum of three experimental facilities in the reactor are displayed. The most recent release (v2.1) offers variability in pressure and temperature conditions in the TRIGA reactor. This release also offers "SHORT SCALE" mode, which allows an output in time steps shorter than one second. This mode caters to simulations of short power transients, which the power can be controlled by the "Flux Scalar" Input.

In developing this software, the flux spectrum plots of the TRIGA reactor and cross sections plots of xenon were first digitized to tables. BREED utilizes these tables and will interpolate the data to an accuracy of your choice, which can be determined using the "Output Fidelity" knob. The number density is then calculated by the program solving the differential equation shown below.