1. Department of Physics, Arizona State University 1 , 550 E Tyler Mall PSF-470, Tempe, Arizona 85287, USA
2. Accelerator Test Facility, Brookhaven National Laboratory 2 , Bldg. 820M, P.O. Box 5000, Upton, New York 11973-5000, USA
3. Instrumentation Division, Brookhaven National Laboratory 3 , Bldg. 535, P.O. Box 5000, Upton, New York 11973-5000, USA
4. Department of Industrial Engineering, University of Salerno 4 , via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
5. Department of Physics, Cornell University 5 , 142 Sciences Dr, Ithaca, New York 14850, USA