This gallery is a small collection of random bits from RDI life and work over the years.
This is what one of our electronics prototype tester looks like.
The Onyx™ array early-stage prototype
Looks just like the CAD design!
Doing our experiments together at the Mayo Clinic Arizona.
The Onyx™ early prototype
First fitting of the parts!
Ready for the protons
At the Mayo Clinic Arizona proton center.
RDI micromegas array
One of our prototype Micromegas particle detectors, made in-house.
Electostatic simulation of the Micromegas
The map of the electric fields around the micro-mesh. Wire diameter is 16 um.
An electron gun design optimization by RDI
Optimization of an electron gun capable of 1.2A of electron current.
Gridded high-current e-gun simulation
A sample Electron gun design for accelerator applications by RDI.
The completed product!
The micromegas detectors are ready to ship.
Business and fun!
Team RDI circa 2019 at the PTCOG-NA conference: having fun out at closing.
Dr. E. is pitching detectors!
Presenting our findings and progress at the DOE SBIR workshop (August 2019, Washington, D.C.).
TSA agent is puzzled!
Carrying radiation detector components takes some additional explaining... Dr. E. is having a hard time. TSA does not prohibit photographing, videotaping or filming at security checkpoints, as long as the screening process is not interfered with or sensitive information is not revealed.
Protons are sizeable...
... and Hitachi is awesome at building accelerators!
2020/11/23 Analog Electronics
Finally we have 12 modules of the DAQ electronics - that should build x2 Onyx™ detectors!
All things Carbon fiber
A prototype assembly comes together perfectly!
Power modules are done!
Another key piece for the Onyx™ detector is in the house!
Onyx™ design conceptualized
A rough preview of what Onyx™ detector array will actually look like.
High-Voltage test passed!
Passed with flying colors. The actual bias will be much, much less... but we do like to over-design things a little. Just in case.
The ONYX #1
The very first test of the ONYX in proton beam! Getting aligned to the isocenter.
The first test was a SUCCESS!
Well, nothing broke down haha :) and the meaningful data has been recorded... some plots coming soon! Martin, James, Franz, and Eugene...!
2023 Experimental Validation of the ONYX has started!
Hard to believe, but this 20-mm thick detector array is less than 6mm in water equivalent thickness (WET)!
Dr. G is setting the ONYX up!
Measuring WET with a water tank, a precision measurement.
The ONYX on top of a water tank
Measuring the cathode WET
Water equivalency of the ONYX cathode (an exact but smaller prototype used) is being measured. It's only 1.3mm effective buildup! It is VERY transparent to radiation.