Monte Carlo code particle filtering

The two primary data outputs of our GamBet code are 1) the deposited energy distribution and 2) the particle escape list. The escape file contains the parameters of electron, photons and positrons that leave the solution volume. This information may be displayed and analyzed with GenDist, our interactive distribution utility. The information is useful for investigating [...]

PDF bookmarks in Latex documents

As I mentioned in previous posts, Latex is by far the best choice for writing scientific articles and books. In comparison to word processors, Latex requires a significant learning investment in the beginning, but offers smooth sailing thereafter. To put this in perspective, if you are going to spend a lifetime writing scientific papers is it [...]

Electric field limits for vacuum breakdown

In a previous post, I spoke of useful design information that is oddly difficult to find on the Internet. In that case the topic was saturation curves for common soft magnetic materials. I recently had a similar experience in another application area — the maximum sustainable electric field in vacuum devices. The issue is critical for [...]

Minimizing electric field on coaxial electrodes

To reduce the possibility of breakdowns, a common goal in high-voltage engineering is to minimize peak electric field values on electrodes for a given voltage. One example is the choice of conductor and shield radii for a coaxial cable. For a given shield radius ro, what choice of the conductor radius ri gives the lowest electric? [...]

Multicore GamBet

Among available packages for Monte Carlo simulations of electrons and X-rays in matter, GamBet has several unique capabilities:

Definition of 3D geometries in an interactive graphical-user-interface with the option for import from SolidWorks.
Dose records on conformal 3D meshes for accuracy
Option to add 3D electric and magnetic fields from HiPhi and Magnum
Import of electron distributions from Trak and [...]