Measurement of medium-energy proton flux

<sec>Proton is the main particle component in space radiation environment. The proton single event effect cannot be ignored with continuous development of semiconductor technology. Accelerator simulation most important method to evaluate caused by radiation, and accurate measurement flux critical aspect device evaluation process. research based on 100 MeV single-event irradiation Atomic Energy Institute, which breaks through wide-range mid-energy fluence rate detection tools are developed such as Faraday cup, plastic scintillator detectors secondary electron emission monitors, can used for measuring beam current a wide range. cup detector high low proton, respectively. Secondary monitor conducting online real-time measurement. fluxes range 10<sup>6</sup>– 10<sup>7</sup> p·cm<sup>–2</sup>·s<sup>–1</sup> measured using two separate detectors.</sec><sec>The analysis uncertainty carried out. results mainly include three aspects: method, instrument equipment, repeatability multiple results. Here this work, taken example analyze sources methods calculation collection efficiency (collection + escape = 1) (flux current/collection area). For instruments including 6517A other electronic devices, their errors determined accuracies themselves. Repeatability from error instability accelerator output, randomness results, given statistical method. shows that 7.26%, 1.64%.</sec><sec>The has reached level similar devices world, filling gap field China. It certain reference guiding significance follow-up study medium- high-energy system established lay foundation accurately evaluating effects.</sec>