Registration of Delayed Neutrons from 238U Photofission at Eγ max ≅ 10 MeV in Interval of (1–5) ms after Beam Pulses of the Electron Accelerator
—Experimental verification for correctness of registration for delayed neutrons from 238U photofission is described for the maximum energy of bremsstrahlung γ-quanta ≅10 MeV at the pulsed linear electron accelerator LUE-8-5 in an interval of (1–5) ms after each beam pulse in time ≳7 min from start of irradiation. The measurements were carried out using the scintillation spectrometer for fast neutrons based on a stilbene single crystal with pulse shape discrimination for scintillations from γ-quanta and fast neutrons. The time dependence of counting rates of delayed neutrons from 238U photofission was measured at a repetition rate of 300 s−1 in intervals of (1.25–3.30) ms.