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Description of current pulses induced by heavy ions in silicon detectors

Abstract : The polarization of the electron-hole pairs induced by 80 MeV View the MathML source ions in a silicon detector was considered and connected to the relative dielectric permittivity. The dissociation of pairs was supposed to take place with a constant probability in a time unit. The exact coordinate dependence of the modified electric field, inside and outside the ion range, was found as the solution of the one-dimensional Maxwell's equation for the electric field in this inhomogeneous medium. The improvement of the current signal simulation with that time-dependent treatment is encouraging, as compared to a prompt carrier collection in an undisturbed electric field.
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Submitted on : Thursday, January 28, 2010 - 4:01:06 PM
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M. Pârlog, H. Hamrita, B. Borderie. Description of current pulses induced by heavy ions in silicon detectors. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2010, 613, pp.290-294. ⟨10.1016/j.nima.2009.12.010⟩. ⟨in2p3-00451188⟩



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