Stand for Studying the Effect of the Proton Irradiation on Microcircuits:Estimation of Particle Fluxes, Activation and Dose Rate
The stand for irradiation of electronic microcircuits has been created on the beam of the linear proton accelerator of the Institute for Nuclear Research RAS. In this paper, we estimate the fluxes of secondary neutrons in the experimental hall and in the surrounding space behind the external shielding of the accelerator. The issue of the influence of the protons and neutrons albedo from the beam trap on the irradiated object is considered.The activation and cooling of the stand elements and of the irradiated object as well as the dose rate are calculated.The received data allow choosing safe operating conditions of the stand and optimal modes of irradiation.The calculations were carried out by the Monte Carlo method using the SHIELD hadron transport code for the maximal at the moment parameters of the proton beam: energy 209 MeV, current 1 μA.