blakewalters

Continuing with the tests from the last update, here's the fractional difference between BEAMnrc and egs++ photon spectra with relaxation effects off when smartCompton is not used in egs++ DBS:...

After (re)implementing the BEAMnrc smartCompton algorithm in egs++ DBS (and noting some errors I'd made in my original implementation of this along the way), we get good agreement between BEAMnrc...

Update 07/04/2024: Results of recent tests comparing BEAMnrc/DBS and egs++/DBS in the case of a 225 kVp e- beam incident on a reflection anode (1 mm W, Cu backing, anode...

Update 08/02/2024: After running the 225 kVp reflection anode results down to ~0.1% uncertainty, a plot of the difference between BEAMnrc/DBS and egs++/DBS photon fluence spectra confirms the differences of...

@rtownson, I've been running a couple of tests using egs_dynamic_shape to collimate a source and, for some reason, I'm not seeing the evolution of source particles I would expect. I've...

Thanks, @rtownson!

@rtownson, oh now I think I see: getPointSourceDirection applies the transformation when a new source particle is chosen. Just looking over the logic for a parallel beam with a rectangular...

Looks good, @rtownson! I've run a couple of other tests and source output is consistent with the (albeit simplistic) dynamic motion of their shapes. One lingering questions concerns the viewing...

I agree, @ftessier, let's get this merged in before worrying about DBS splitting, which shouldn't be affected by this change in any case.

Looking back through our emails, @dworogers, I see that I'd traced this to electrons reflected back to the vacuum region and then immediately being discarded. Moreover, I was able to...