Abstract

The influence of the charge collection time in silicon detectors on the accuracy of charged particle energy measurements is considered. Calculation and experimental data show that this parameter exerts a significant effect on the selection of the shaping time constants τ of multilayer silicon spectrometers. This is especially important for systems based on Si(Li) detectors, which are designed for detecting long-range charged particles (p, d, t) with energies E ∼ 100 MeV. It is shown that the time constant τ = 1.5 μs ensures a high accuracy in the absolute energy calibration.

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