CRad is a tool to predict Single Event Effects (SEE) rate, Total Displacement Dose (TDD) and Total Ionizing Dose (TID) of semiconductor devices on orbits in space. It's the professional version of ForeCAST. Their differences are at the bottom of this page.
The workflow, and also the GUI of CRad:
Models for radiation environment:
The flux of particles:
The trapped radiation can also be shown on 2D-orbit:
The methods of SEE rate prediction are explained here. What CRad do includes:
The shielding effect of a space craft can be simplified as a thickness distribution of equivalent aluminum layers. To calculate the thickness distribution of a certain space craft, SSAT (developed by ESA) is employed. Due to different physics and geometry requirements, SSAT is not a part of CRad, but implemented in VisualParticle.
When predicting TDD and TID of devices in space orbits, Shieldose2 code, developed by NASA, is used for simulating the shielding of space craft shell. Three kinds of geometry model are supported by Shieldose2, including infinite-thickness slab, finite-thickness slab, and finite sphere.
ForeCAST is the on-line version of CRad.
|Running on||On-line||GNU Linux(R) or MS Windows(R)|
|SEE Prediction||Standard||Fancier Methods|