30kV Proton Accelerator with Ultra High Flux Stability

 

In my poster I will describe a low energy proton accelerator with ultra high flux stability which is being developed at UVa. In this accelerator we send an electron beam to ionize hydrogen gas which produces protons and molecular hydrogen ions. The ions are accelerated and then mass selected by a magnetic field before being detected.  In previous work, the accelerator had shown a stability of 170±360ppm/h. Currently, the accelerator is being improved to increase its count rate and maintain or improve the stability to below 100ppm/h. One of the purposes of this proton accelerator will be to characterize proton detectors in the Nab collaboration which is presently being installed at the Spallation Neutron Source (SNS) at Oak Ridge National Lab .