Vahan,
You must be referring to the Advanced Research Electron Accelerator Laboratory (AREAL) at the Center for the Advancement of Natural Discoveries using Light Emission (CANDLE) institute main building. Great picture of you on the staff page there. Wouldn't Dr. Khachatryan or the guys over in the Lasers and X-Ray Instrumentation Laboratory have the answer? Perhaps colleagues over at YerPhi, they have a long history of accelerator physics. There is no reason to reinvent the instrumentation wheel, when you already have detectors for this, no? Worst case scenario, use what they use at CERN.
You have to love the internet.