Showing posts with label Light Transport. Show all posts
Showing posts with label Light Transport. Show all posts

Thursday, July 25, 2013

Detector Modeling (Geometry)

Okay, the last one was a little depressing and not very useful - so here are some images of the geometry I am modeling!
The GS20 model
 A nice little study I did was using a teflon reflector versus black tape (which shouldn't reflect much light). The spectra are shown below, and this agrees with my model.

The RPM8 simulation is what I am going for, and below is an image of what my model is.
RPM8 SIAC detector.  The detector is 2.1 m tall, 30 cm wide, 12.7 cm thick.
The reason for all of these nice pictures? ARI slides are due!

Tuesday, July 23, 2013

Optical Photon Simulation

It finally seems to be working without too much of a problem!  This is great news, as the ARI conference is in a week. I haven't really had time to go through the results yet, but they seem to be mostly aligned with the measurements. For the GS20 we are only losing about 8% of the photons, which seems low to me - but the mounting conditions usually account for around a 5-10% change in the peak channel number, so if we are only losing 8% then it kinda works, if you squint hard enough.
GS20 Simulation with Teflon Reflector, BK7 photocathode and silicone optical grease
The simulation is very slow, so I need to work on regaining the parallel capability that I discarded to avoid the code clutter.

In another news we have a big summer league game coming up tomorrow against my future roommate. And, for a limited time, I'm back on Facebook!